./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor101952002

<...>
Warning: Permanently added '10.128.1.45' (ED25519) to the list of known hosts.
execve("./syz-executor101952002", ["./syz-executor101952002"], 0x7fff7a42f680 /* 10 vars */) = 0
brk(NULL)                               = 0x555555646000
brk(0x555555646d00)                     = 0x555555646d00
arch_prctl(ARCH_SET_FS, 0x555555646380) = 0
set_tid_address(0x555555646650)         = 5058
set_robust_list(0x555555646660, 24)     = 0
rseq(0x555555646ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor101952002", 4096) = 27
getrandom("\xdd\xf4\xcb\x92\xef\xe6\x11\xd8", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555555646d00
brk(0x555555667d00)                     = 0x555555667d00
brk(0x555555668000)                     = 0x555555668000
mprotect(0x7f08308de000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5059 attached
, child_tidptr=0x555555646650) = 5059
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] set_robust_list(0x555555646660, 24) = 0
./strace-static-x86_64: Process 5060 attached
[pid  5058] <... clone resumed>, child_tidptr=0x555555646650) = 5060
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5061 attached
 <unfinished ...>
[pid  5060] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5060] <... set_robust_list resumed>) = 0
[pid  5058] <... clone resumed>, child_tidptr=0x555555646650) = 5061
[pid  5061] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5061] <... set_robust_list resumed>) = 0
[pid  5059] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5060] <... openat resumed>)       = 3
[pid  5059] close(3 <unfinished ...>
[pid  5061] <... openat resumed>)       = 3
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5059] <... close resumed>)        = 0
[pid  5061] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5062 attached
 <unfinished ...>
[pid  5058] <... clone resumed>, child_tidptr=0x555555646650) = 5062
[pid  5061] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5060] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5062] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5061] close(3 <unfinished ...>
[pid  5060] close(3)                    = 0
[pid  5062] <... set_robust_list resumed>) = 0
[pid  5061] <... close resumed>)        = 0
./strace-static-x86_64: Process 5064 attached
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5067 attached
./strace-static-x86_64: Process 5066 attached
./strace-static-x86_64: Process 5065 attached
 <unfinished ...>
[pid  5058] <... clone resumed>, child_tidptr=0x555555646650) = 5065
[pid  5064] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5064
[pid  5058] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5066] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5065] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5064] <... set_robust_list resumed>) = 0
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5067] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5067
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5066
[pid  5064] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5068 attached
 <unfinished ...>
[pid  5067] <... set_robust_list resumed>) = 0
[pid  5066] <... set_robust_list resumed>) = 0
[pid  5065] <... set_robust_list resumed>) = 0
[pid  5064] <... prctl resumed>)        = 0
[pid  5062] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5068] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5067] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5066] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5064] setpgid(0, 0 <unfinished ...>
[pid  5062] close(3 <unfinished ...>
[pid  5067] <... prctl resumed>)        = 0
[pid  5066] <... prctl resumed>)        = 0
[pid  5064] <... setpgid resumed>)      = 0
[pid  5062] <... close resumed>)        = 0
[pid  5058] <... clone resumed>, child_tidptr=0x555555646650) = 5068
[pid  5067] setpgid(0, 0 <unfinished ...>
[pid  5066] setpgid(0, 0 <unfinished ...>
[pid  5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5068] <... set_robust_list resumed>) = 0
[pid  5067] <... setpgid resumed>)      = 0
[pid  5066] <... setpgid resumed>)      = 0
[pid  5065] <... openat resumed>)       = 3
[pid  5064] <... openat resumed>)       = 3
[pid  5064] write(3, "1000", 4 <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5064] <... write resumed>)        = 4
[pid  5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5066] <... openat resumed>)       = 3
[pid  5065] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5064] close(3./strace-static-x86_64: Process 5069 attached
 <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
[pid  5067] <... openat resumed>)       = 3
[pid  5066] write(3, "1000", 4 <unfinished ...>
[pid  5065] close(3 <unfinished ...>
[pid  5064] <... close resumed>)        = 0
[pid  5069] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5067] write(3, "1000", 4 <unfinished ...>
[pid  5066] <... write resumed>)        = 4
[pid  5065] <... close resumed>)        = 0
[pid  5064] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5069
[pid  5069] <... set_robust_list resumed>) = 0
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5067] <... write resumed>)        = 4
[pid  5066] close(3 <unfinished ...>
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5064] <... openat resumed>)       = 3
[pid  5066] <... close resumed>)        = 0
[pid  5067] close(3 <unfinished ...>
[pid  5066] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5070 attached
 <unfinished ...>
[pid  5069] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5068] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5067] <... close resumed>)        = 0
[pid  5064] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5069] <... prctl resumed>)        = 0
[pid  5068] close(3 <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5070
[pid  5069] setpgid(0, 0 <unfinished ...>
[pid  5068] <... close resumed>)        = 0
[pid  5067] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5069] <... setpgid resumed>)      = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5067] <... openat resumed>)       = 3
[pid  5066] <... openat resumed>)       = 3
[pid  5070] <... set_robust_list resumed>) = 0
[pid  5067] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5066] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5071 attached
 <unfinished ...>
[pid  5070] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5067] <... openat resumed>)       = 4
[pid  5066] <... openat resumed>)       = 4
[pid  5064] <... openat resumed>)       = 4
[pid  5070] <... prctl resumed>)        = 0
[pid  5066] sendfile(4, 3, [122] <unfinished ...>
[pid  5071] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5070] setpgid(0, 0 <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5071
[pid  5067] sendfile(4, 3, [122] <unfinished ...>
[pid  5064] sendfile(4, 3, [122] <unfinished ...>
[pid  5071] <... set_robust_list resumed>) = 0
[pid  5070] <... setpgid resumed>)      = 0
[pid  5069] write(3, "1000", 4 <unfinished ...>
[pid  5071] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5071] <... prctl resumed>)        = 0
[pid  5070] <... openat resumed>)       = 3
[pid  5069] <... write resumed>)        = 4
[pid  5070] write(3, "1000", 4)         = 4
[pid  5070] close(3)                    = 0
[pid  5070] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5070] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5070] sendfile(4, 3, [122] <unfinished ...>
[pid  5071] setpgid(0, 0 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5071] <... setpgid resumed>)      = 0
[pid  5069] <... close resumed>)        = 0
[pid  5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5071] write(3, "1000", 4 <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5069] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5071] <... write resumed>)        = 4
[pid  5071] close(3)                    = 0
[pid  5071] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5069] <... openat resumed>)       = 4
[pid  5071] <... openat resumed>)       = 3
[pid  5069] sendfile(4, 3, [122] <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   61.887941][ T5069] syz-executor101 (5069): drop_caches: 3
[   62.179661][ T5067] syz-executor101 (5067): drop_caches: 3
[   62.224991][ T5069] syz-executor101 (5069): drop_caches: 3
[   62.255838][ T5070] syz-executor101 (5070): drop_caches: 3
[pid  5071] sendfile(4, 3, [122] <unfinished ...>
[pid  5069] <... sendfile resumed> => [640], 571) = 518
[pid  5069] memfd_create("syzkaller", 0) = 5
[   62.272728][ T5071] syz-executor101 (5071): drop_caches: 3
[pid  5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5069] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid  5069] munmap(0x7f082840d000, 138412032) = 0
[   62.463618][ T5066] syz-executor101 (5066): drop_caches: 3
[   62.482755][ T5067] syz-executor101 (5067): drop_caches: 3
[pid  5069] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5069] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5067] <... sendfile resumed> => [640], 571) = 518
[pid  5069] <... ioctl resumed>)        = 0
[pid  5069] close(5)                    = 0
[pid  5067] memfd_create("syzkaller", 0) = 5
[pid  5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5069] mkdir("./file0", 0777 <unfinished ...>
[pid  5067] <... mmap resumed>)         = 0x7f082840d000
[   62.506918][ T5069] loop3: detected capacity change from 0 to 4096
[pid  5069] <... mkdir resumed>)        = 0
[pid  5070] <... sendfile resumed> => [640], 571) = 518
[pid  5069] mount("/dev/loop3", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000000000000377,dmask=0000000000400"... <unfinished ...>
[pid  5070] memfd_create("syzkaller", 0 <unfinished ...>
[   62.574908][ T5070] syz-executor101 (5070): drop_caches: 3
[   62.584787][ T5069] ntfs: (device loop3): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel.
[   62.585963][ T5064] syz-executor101 (5064): drop_caches: 3
[pid  5067] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5070] <... memfd_create resumed>) = 5
[pid  5067] <... write resumed>)        = 2097152
[pid  5067] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5067] <... munmap resumed>)       = 0
[pid  5067] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5067] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[   62.636994][ T5069] ntfs: (device loop3): read_ntfs_boot_sector(): Primary boot sector is invalid.
[   62.648744][ T5069] ntfs: (device loop3): read_ntfs_boot_sector(): Hot-fix: Recovering invalid primary boot sector from backup copy.
[pid  5070] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5067] <... ioctl resumed>)        = 0
[pid  5067] close(5)                    = 0
[   62.691325][ T5067] loop2: detected capacity change from 0 to 4096
[   62.700411][ T5069] ntfs: (device loop3): ntfs_mapping_pairs_decompress(): Corrupt attribute.
[   62.716784][ T5069] ntfs: (device loop3): ntfs_read_block(): Failed to read from inode 0xa, attribute type 0x80, vcn 0x0, offset 0x0 because its location on disk could not be determined even after retrying (error code -5).
[pid  5067] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  5067] mount("/dev/loop2", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000000000000377,dmask=0000000000400"... <unfinished ...>
[pid  5070] <... write resumed>)        = 2097152
[   62.725489][ T5067] ntfs: (device loop2): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel.
[   62.761282][ T5069] ntfs: (device loop3): ntfs_mapping_pairs_decompress(): Corrupt attribute.
[   62.770132][ T5069] ntfs: (device loop3): ntfs_read_block(): Failed to read from inode 0xa, attribute type 0x80, vcn 0x0, offset 0x200 because its location on disk could not be determined even after retrying (error code -5).
[pid  5070] munmap(0x7f082840d000, 138412032) = 0
[pid  5070] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5070] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5069] <... mount resumed>)        = 0
[pid  5069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid  5069] chdir("./file0")            = 0
[pid  5069] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5070] <... ioctl resumed>)        = 0
[pid  5069] close(6 <unfinished ...>
[pid  5070] close(5 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5070] <... close resumed>)        = 0
[pid  5070] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  5070] mount("/dev/loop4", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000000000000377,dmask=0000000000400"... <unfinished ...>
[pid  5069] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 6
[   62.790889][ T5069] ntfs: (device loop3): ntfs_mapping_pairs_decompress(): Corrupt attribute.
[   62.803056][ T5069] ntfs: (device loop3): ntfs_read_block(): Failed to read from inode 0xa, attribute type 0x80, vcn 0x1, offset 0x0 because its location on disk could not be determined even after retrying (error code -5).
[   62.816550][ T5067] ntfs: volume version 3.1.
[   62.826023][ T5069] ntfs: volume version 3.1.
[   62.831597][ T5070] loop4: detected capacity change from 0 to 4096
[pid  5069] write(6, "t", 1)            = 1
[pid  5069] exit_group(0)               = ?
[pid  5069] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=35 /* 0.35 s */} ---
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5062] close(3)                    = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5073
./strace-static-x86_64: Process 5073 attached
[pid  5073] set_robust_list(0x555555646660, 24) = 0
[pid  5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5073] setpgid(0, 0)               = 0
[pid  5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5067] <... mount resumed>)        = 0
[pid  5073] <... openat resumed>)       = 3
[pid  5067] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5073] write(3, "1000", 4 <unfinished ...>
[pid  5067] <... openat resumed>)       = 5
[pid  5067] chdir("./file0")            = 0
[   62.878197][ T5070] ntfs: volume version 3.1.
[pid  5067] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5073] <... write resumed>)        = 4
[pid  5073] close(3)                    = 0
[pid  5067] close(6)                    = 0
[pid  5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5067] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5073] <... openat resumed>)       = 4
[pid  5073] sendfile(4, 3, [122] <unfinished ...>
[pid  5064] <... sendfile resumed> => [640], 571) = 518
[pid  5064] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5071] <... sendfile resumed> => [640], 571) = 518
[pid  5070] <... mount resumed>)        = 0
[pid  5067] <... openat resumed>)       = 6
[pid  5066] <... sendfile resumed> => [640], 571) = 518
[pid  5064] <... memfd_create resumed>) = 5
[pid  5070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5066] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5071] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5070] <... openat resumed>)       = 5
[pid  5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5070] chdir("./file0" <unfinished ...>
[pid  5067] write(6, "t", 1 <unfinished ...>
[pid  5066] <... memfd_create resumed>) = 5
[pid  5071] <... memfd_create resumed>) = 5
[pid  5070] <... chdir resumed>)        = 0
[pid  5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5064] <... mmap resumed>)         = 0x7f082840d000
[pid  5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5070] ioctl(6, LOOP_CLR_FD <unfinished ...>
[   62.911463][ T5066] syz-executor101 (5066): drop_caches: 3
[   62.912534][ T5071] syz-executor101 (5071): drop_caches: 3
[   62.928389][ T5064] syz-executor101 (5064): drop_caches: 3
[pid  5066] <... mmap resumed>)         = 0x7f082840d000
[pid  5070] <... ioctl resumed>)        = 0
[pid  5067] <... write resumed>)        = 1
[pid  5067] exit_group(0)               = ?
[pid  5067] +++ exited with 0 +++
[pid  5071] <... mmap resumed>)         = 0x7f082840d000
[pid  5070] close(6 <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5067, si_uid=0, si_status=0, si_utime=0, si_stime=37 /* 0.37 s */} ---
[pid  5070] <... close resumed>)        = 0
[pid  5070] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5070] <... openat resumed>)       = 6
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5066] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5064] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5061] close(3 <unfinished ...>
[pid  5071] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5070] write(6, "t", 1 <unfinished ...>
[pid  5061] <... close resumed>)        = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] <... write resumed>)        = 1
[pid  5070] exit_group(0./strace-static-x86_64: Process 5074 attached
)               = ?
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5074
[pid  5070] +++ exited with 0 +++
[pid  5074] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=42 /* 0.42 s */} ---
[pid  5065] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5074] <... set_robust_list resumed>) = 0
[pid  5074] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5065] <... restart_syscall resumed>) = 0
[pid  5074] <... prctl resumed>)        = 0
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5074] setpgid(0, 0 <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5074] <... setpgid resumed>)      = 0
[pid  5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5065] <... ioctl resumed>)        = 0
[pid  5065] close(3)                    = 0
[pid  5074] <... openat resumed>)       = 3
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5075 attached
 <unfinished ...>
[pid  5074] write(3, "1000", 4 <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5075
[pid  5074] <... write resumed>)        = 4
[pid  5074] close(3 <unfinished ...>
[pid  5075] set_robust_list(0x555555646660, 24) = 0
[pid  5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5075] setpgid(0, 0)               = 0
[pid  5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5074] <... close resumed>)        = 0
[pid  5075] <... openat resumed>)       = 3
[pid  5066] <... write resumed>)        = 2097152
[pid  5075] write(3, "1000", 4 <unfinished ...>
[pid  5074] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5075] <... write resumed>)        = 4
[pid  5075] close(3 <unfinished ...>
[pid  5074] <... openat resumed>)       = 3
[pid  5075] <... close resumed>)        = 0
[pid  5075] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5074] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5066] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5075] <... openat resumed>)       = 3
[pid  5074] <... openat resumed>)       = 4
[pid  5075] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5074] sendfile(4, 3, [122] <unfinished ...>
[pid  5066] <... munmap resumed>)       = 0
[pid  5075] <... openat resumed>)       = 4
[pid  5075] sendfile(4, 3, [122] <unfinished ...>
[pid  5066] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5066] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5064] <... write resumed>)        = 2097152
[pid  5066] <... ioctl resumed>)        = 0
[pid  5066] close(5)                    = 0
[pid  5066] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  5071] <... write resumed>)        = 2097152
[pid  5066] mount("/dev/loop1", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000000000000377,dmask=0000000000400"... <unfinished ...>
[pid  5064] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5071] munmap(0x7f082840d000, 138412032) = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5064] <... munmap resumed>)       = 0
[pid  5071] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[   63.115979][ T5066] loop1: detected capacity change from 0 to 4096
[   63.146396][ T5073] syz-executor101 (5073): drop_caches: 3
[pid  5064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5064] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5071] close(5)                    = 0
[pid  5064] <... ioctl resumed>)        = 0
[pid  5064] close(5 <unfinished ...>
[pid  5071] mkdir("./file0", 0777 <unfinished ...>
[pid  5064] <... close resumed>)        = 0
[pid  5071] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5064] mkdir("./file0", 0777 <unfinished ...>
[pid  5071] mount("/dev/loop5", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000000000000377,dmask=0000000000400"... <unfinished ...>
[pid  5064] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5064] mount("/dev/loop0", "./file0", "ntfs", 0, "errors=continue,errors=recover,utf8,errors=recover,fmask=00000000000000000000377,dmask=0000000000400"... <unfinished ...>
[pid  5066] <... mount resumed>)        = 0
[pid  5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid  5066] chdir("./file0")            = 0
[pid  5066] ioctl(6, LOOP_CLR_FD)       = 0
[   63.165783][ T5071] loop5: detected capacity change from 0 to 4096
[   63.169981][ T5066] ntfs: volume version 3.1.
[   63.179311][ T5064] loop0: detected capacity change from 0 to 4096
[pid  5066] close(6)                    = 0
[pid  5066] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 6
[pid  5066] write(6, "t", 1)            = 1
[pid  5066] exit_group(0)               = ?
[pid  5066] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=43 /* 0.43 s */} ---
[pid  5060] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5076 attached
 <unfinished ...>
[pid  5076] set_robust_list(0x555555646660, 24) = 0
[pid  5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5076] setpgid(0, 0 <unfinished ...>
[pid  5071] <... mount resumed>)        = 0
[pid  5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5076
[pid  5071] <... openat resumed>)       = 5
[   63.244220][ T5071] ntfs: volume version 3.1.
[   63.255519][ T5064] ntfs: volume version 3.1.
[pid  5071] chdir("./file0" <unfinished ...>
[pid  5076] <... setpgid resumed>)      = 0
[pid  5071] <... chdir resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5064] <... mount resumed>)        = 0
[pid  5076] write(3, "1000", 4 <unfinished ...>
[pid  5071] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... write resumed>)        = 4
[pid  5076] close(3 <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5076] <... close resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5071] close(6 <unfinished ...>
[pid  5064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5071] <... close resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5071] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5064] <... openat resumed>)       = 5
[pid  5076] <... openat resumed>)       = 4
[pid  5076] sendfile(4, 3, [122] <unfinished ...>
[pid  5064] chdir("./file0")            = 0
[pid  5064] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5064] close(6)                    = 0
[pid  5064] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5071] <... openat resumed>)       = 6
[pid  5071] write(6, "t", 1 <unfinished ...>
[pid  5064] <... openat resumed>)       = 6
[   63.357129][ T5074] syz-executor101 (5074): drop_caches: 3
[   63.380602][ T5073] syz-executor101 (5073): drop_caches: 3
[pid  5064] write(6, "t", 1 <unfinished ...>
[pid  5073] <... sendfile resumed> => [693], 571) = 571
[pid  5071] <... write resumed>)        = 1
[pid  5064] <... write resumed>)        = 1
[pid  5073] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5071] exit_group(0 <unfinished ...>
[pid  5064] exit_group(0 <unfinished ...>
[pid  5073] <... memfd_create resumed>) = 5
[pid  5064] <... exit_group resumed>)   = ?
[pid  5064] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=0, si_stime=43 /* 0.43 s */} ---
[pid  5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5071] <... exit_group resumed>)   = ?
[pid  5059] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3 <unfinished ...>
[pid  5073] <... mmap resumed>)         = 0x7f082840d000
[pid  5059] <... close resumed>)        = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5077 attached
 <unfinished ...>
[pid  5071] +++ exited with 0 +++
[pid  5077] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=36 /* 0.36 s */} ---
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5077
[pid  5077] <... set_robust_list resumed>) = 0
[pid  5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5068] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5077] setpgid(0, 0 <unfinished ...>
[pid  5068] close(3 <unfinished ...>
[pid  5077] <... setpgid resumed>)      = 0
[pid  5068] <... close resumed>)        = 0
[pid  5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5077] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5078 attached
[   63.423334][ T5075] syz-executor101 (5075): drop_caches: 3
[pid  5077] write(3, "1000", 4 <unfinished ...>
[pid  5078] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5077] <... write resumed>)        = 4
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5078
[pid  5077] close(3 <unfinished ...>
[pid  5078] <... set_robust_list resumed>) = 0
[pid  5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5077] <... close resumed>)        = 0
[pid  5078] setpgid(0, 0)               = 0
[pid  5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5077] <... openat resumed>)       = 3
[pid  5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5078] <... openat resumed>)       = 3
[pid  5078] write(3, "1000", 4 <unfinished ...>
[pid  5077] sendfile(4, 3, [122] <unfinished ...>
[pid  5078] <... write resumed>)        = 4
[pid  5078] close(3)                    = 0
[pid  5078] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5078] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5078] sendfile(4, 3, [122] <unfinished ...>
[pid  5073] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid  5073] munmap(0x7f082840d000, 138412032) = 0
[pid  5073] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5073] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5073] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5073] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5074] <... sendfile resumed> => [693], 571) = 571
[pid  5074] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5073] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5073] close(6 <unfinished ...>
[pid  5074] <... memfd_create resumed>) = 5
[pid  5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5073] <... close resumed>)        = 0
[   63.666412][ T5074] syz-executor101 (5074): drop_caches: 3
[   63.669022][ T5076] syz-executor101 (5076): drop_caches: 3
[pid  5074] <... mmap resumed>)         = 0x7f082840d000
[pid  5073] close(5 <unfinished ...>
[pid  5075] <... sendfile resumed> => [693], 571) = 571
[pid  5075] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5073] <... close resumed>)        = 0
[pid  5073] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5074] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5075] <... memfd_create resumed>) = 5
[   63.735983][ T5075] syz-executor101 (5075): drop_caches: 3
[pid  5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5073] <... openat resumed>)       = 5
[   63.796136][ T5078] syz-executor101 (5078): drop_caches: 3
[   63.805802][ T5077] syz-executor101 (5077): drop_caches: 3
[pid  5073] write(5, "t", 1 <unfinished ...>
[pid  5074] <... write resumed>)        = 2097152
[pid  5075] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5074] munmap(0x7f082840d000, 138412032) = 0
[pid  5073] <... write resumed>)        = 1
[pid  5073] exit_group(0)               = ?
[pid  5073] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} ---
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5074] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5074] <... openat resumed>)       = 6
[pid  5062] <... ioctl resumed>)        = 0
[pid  5074] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5062] close(3)                    = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5079
./strace-static-x86_64: Process 5079 attached
[pid  5074] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5079] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5074] <... ioctl resumed>)        = 0
[pid  5079] <... set_robust_list resumed>) = 0
[pid  5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5079] setpgid(0, 0)               = 0
[pid  5074] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5076] <... sendfile resumed> => [693], 571) = 571
[pid  5074] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5074] close(6)                    = 0
[pid  5074] close(5 <unfinished ...>
[pid  5079] <... openat resumed>)       = 3
[pid  5079] write(3, "1000", 4)         = 4
[   63.911366][ T5076] syz-executor101 (5076): drop_caches: 3
[pid  5079] close(3 <unfinished ...>
[pid  5076] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5075] <... write resumed>)        = 2097152
[pid  5079] <... close resumed>)        = 0
[pid  5079] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5079] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5076] <... memfd_create resumed>) = 5
[pid  5075] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5074] <... close resumed>)        = 0
[pid  5079] <... openat resumed>)       = 4
[pid  5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5075] <... munmap resumed>)       = 0
[pid  5079] sendfile(4, 3, [122] <unfinished ...>
[pid  5076] <... mmap resumed>)         = 0x7f082840d000
[pid  5075] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5075] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5075] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5075] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5075] close(6)                    = 0
[pid  5075] close(5 <unfinished ...>
[pid  5074] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5074] write(5, "t", 1 <unfinished ...>
[pid  5075] <... close resumed>)        = 0
[pid  5075] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5074] <... write resumed>)        = 1
[pid  5074] exit_group(0 <unfinished ...>
[pid  5076] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5075] write(5, "t", 1 <unfinished ...>
[pid  5074] <... exit_group resumed>)   = ?
[pid  5074] +++ exited with 0 +++
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} ---
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5075] <... write resumed>)        = 1
./strace-static-x86_64: Process 5080 attached
[pid  5075] exit_group(0 <unfinished ...>
[pid  5080] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5075] <... exit_group resumed>)   = ?
[pid  5080] <... set_robust_list resumed>) = 0
[pid  5075] +++ exited with 0 +++
[pid  5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} ---
[pid  5080] setpgid(0, 0 <unfinished ...>
[pid  5065] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5065] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5080
[pid  5065] close(3 <unfinished ...>
[pid  5080] <... setpgid resumed>)      = 0
[pid  5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5065] <... close resumed>)        = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5080] write(3, "1000", 4./strace-static-x86_64: Process 5081 attached
 <unfinished ...>
[pid  5081] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5080] <... write resumed>)        = 4
[pid  5076] <... write resumed>)        = 2097152
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5081
[pid  5081] <... set_robust_list resumed>) = 0
[pid  5080] close(3 <unfinished ...>
[pid  5081] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5080] <... close resumed>)        = 0
[pid  5081] <... prctl resumed>)        = 0
[   64.116013][ T5077] syz-executor101 (5077): drop_caches: 3
[   64.128089][ T5078] syz-executor101 (5078): drop_caches: 3
[pid  5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5081] setpgid(0, 0 <unfinished ...>
[pid  5080] <... openat resumed>)       = 3
[pid  5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5077] <... sendfile resumed> => [693], 571) = 571
[pid  5077] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5081] <... setpgid resumed>)      = 0
[pid  5080] <... openat resumed>)       = 4
[pid  5078] <... sendfile resumed> => [693], 571) = 571
[pid  5077] <... memfd_create resumed>) = 5
[pid  5076] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5080] sendfile(4, 3, [122] <unfinished ...>
[pid  5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5081] <... openat resumed>)       = 3
[pid  5077] <... mmap resumed>)         = 0x7f082840d000
[pid  5081] write(3, "1000", 4)         = 4
[pid  5078] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5076] <... munmap resumed>)       = 0
[pid  5081] close(3)                    = 0
[pid  5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5078] <... memfd_create resumed>) = 5
[pid  5076] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5076] <... openat resumed>)       = 6
[pid  5078] <... mmap resumed>)         = 0x7f082840d000
[pid  5076] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5076] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5081] <... openat resumed>)       = 4
[pid  5076] <... ioctl resumed>)        = 0
[pid  5081] sendfile(4, 3, [122] <unfinished ...>
[pid  5076] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5076] close(6)                    = 0
[   64.156337][ T5079] syz-executor101 (5079): drop_caches: 3
[pid  5076] close(5 <unfinished ...>
[pid  5078] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5077] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5076] write(5, "t", 1)            = 1
[pid  5076] exit_group(0)               = ?
[pid  5076] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5077] <... write resumed>)        = 2097152
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5082
./strace-static-x86_64: Process 5082 attached
[pid  5082] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5078] <... write resumed>)        = 2097152
[pid  5077] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5082] <... set_robust_list resumed>) = 0
[pid  5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5077] <... munmap resumed>)       = 0
[pid  5082] setpgid(0, 0 <unfinished ...>
[pid  5078] munmap(0x7f082840d000, 138412032) = 0
[pid  5082] <... setpgid resumed>)      = 0
[pid  5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5077] <... openat resumed>)       = 6
[pid  5082] <... openat resumed>)       = 3
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5078] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5078] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5077] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5082] write(3, "1000", 4 <unfinished ...>
[pid  5077] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5082] <... write resumed>)        = 4
[pid  5078] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5077] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5078] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5082] close(3 <unfinished ...>
[pid  5078] close(6 <unfinished ...>
[pid  5077] <... ioctl resumed>)        = 0
[pid  5078] <... close resumed>)        = 0
[pid  5082] <... close resumed>)        = 0
[pid  5078] close(5 <unfinished ...>
[pid  5082] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5077] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5082] <... openat resumed>)       = 3
[pid  5077] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5082] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5077] close(6)                    = 0
[pid  5082] sendfile(4, 3, [122] <unfinished ...>
[pid  5077] close(5 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5078] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5078] write(5, "t", 1)            = 1
[pid  5078] exit_group(0)               = ?
[pid  5078] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5077] <... close resumed>)        = 0
[pid  5068] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5077] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5077] write(5, "t", 1 <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5068] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5068] close(3)                    = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5083
./strace-static-x86_64: Process 5083 attached
[pid  5083] set_robust_list(0x555555646660, 24) = 0
[pid  5083] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5077] <... write resumed>)        = 1
[pid  5083] <... prctl resumed>)        = 0
[pid  5079] <... sendfile resumed> => [693], 571) = 571
[pid  5077] exit_group(0 <unfinished ...>
[pid  5083] setpgid(0, 0)               = 0
[pid  5079] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5077] <... exit_group resumed>)   = ?
[pid  5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5077] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=25 /* 0.25 s */} ---
[pid  5083] write(3, "1000", 4)         = 4
[pid  5083] close(3 <unfinished ...>
[pid  5079] <... memfd_create resumed>) = 5
[pid  5083] <... close resumed>)        = 0
[pid  5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5083] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5083] <... openat resumed>)       = 3
[pid  5079] <... mmap resumed>)         = 0x7f082840d000
[pid  5059] close(3 <unfinished ...>
[pid  5083] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5059] <... close resumed>)        = 0
[pid  5083] <... openat resumed>)       = 4
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5085
./strace-static-x86_64: Process 5085 attached
[pid  5083] sendfile(4, 3, [122] <unfinished ...>
[pid  5085] set_robust_list(0x555555646660, 24) = 0
[   64.474861][ T5080] syz-executor101 (5080): drop_caches: 3
[   64.495416][ T5079] syz-executor101 (5079): drop_caches: 3
[   64.500045][ T5081] syz-executor101 (5081): drop_caches: 3
[pid  5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5085] setpgid(0, 0)               = 0
[pid  5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5085] write(3, "1000", 4)         = 4
[pid  5085] close(3)                    = 0
[pid  5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5085] sendfile(4, 3, [122] <unfinished ...>
[pid  5079] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[   64.669495][ T5082] syz-executor101 (5082): drop_caches: 3
[pid  5079] munmap(0x7f082840d000, 138412032) = 0
[pid  5079] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5079] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5079] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5079] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5079] close(6)                    = 0
[pid  5079] close(5)                    = 0
[pid  5079] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5080] <... sendfile resumed> => [693], 571) = 571
[pid  5079] <... openat resumed>)       = 5
[pid  5079] write(5, "t", 1 <unfinished ...>
[pid  5080] memfd_create("syzkaller", 0) = 5
[pid  5079] <... write resumed>)        = 1
[pid  5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5079] exit_group(0)               = ?
[pid  5080] <... mmap resumed>)         = 0x7f082840d000
[pid  5079] +++ exited with 0 +++
[pid  5081] <... sendfile resumed> => [693], 571) = 571
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} ---
[   64.788470][ T5080] syz-executor101 (5080): drop_caches: 3
[   64.815059][ T5083] syz-executor101 (5083): drop_caches: 3
[   64.824185][ T5081] syz-executor101 (5081): drop_caches: 3
[pid  5081] memfd_create("syzkaller", 0) = 5
[pid  5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5080] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[   64.853788][ T5085] syz-executor101 (5085): drop_caches: 3
[pid  5062] close(3 <unfinished ...>
[pid  5081] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5062] <... close resumed>)        = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5086
./strace-static-x86_64: Process 5086 attached
[pid  5086] set_robust_list(0x555555646660, 24) = 0
[pid  5086] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5082] <... sendfile resumed> => [693], 571) = 571
[pid  5080] <... write resumed>)        = 2097152
[pid  5086] <... prctl resumed>)        = 0
[pid  5086] setpgid(0, 0)               = 0
[pid  5080] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5082] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5086] write(3, "1000", 4)         = 4
[pid  5086] close(3 <unfinished ...>
[pid  5082] <... memfd_create resumed>) = 5
[pid  5081] <... write resumed>)        = 2097152
[pid  5080] <... munmap resumed>)       = 0
[pid  5086] <... close resumed>)        = 0
[pid  5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5086] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5080] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5080] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5086] <... openat resumed>)       = 3
[pid  5081] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5080] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5086] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5081] <... munmap resumed>)       = 0
[pid  5081] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5086] <... openat resumed>)       = 4
[pid  5086] sendfile(4, 3, [122] <unfinished ...>
[pid  5080] ioctl(6, LOOP_CLR_FD)       = 0
[   64.953035][ T5082] syz-executor101 (5082): drop_caches: 3
[pid  5081] <... openat resumed>)       = 6
[pid  5080] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5081] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5081] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5081] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5080] close(6 <unfinished ...>
[pid  5081] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5081] close(6)                    = 0
[pid  5080] <... close resumed>)        = 0
[pid  5081] close(5 <unfinished ...>
[pid  5082] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5080] close(5 <unfinished ...>
[pid  5081] <... close resumed>)        = 0
[pid  5081] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5081] write(5, "t", 1 <unfinished ...>
[pid  5080] <... close resumed>)        = 0
[pid  5080] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5081] <... write resumed>)        = 1
[pid  5081] exit_group(0 <unfinished ...>
[pid  5080] write(5, "t", 1 <unfinished ...>
[pid  5081] <... exit_group resumed>)   = ?
[pid  5081] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} ---
[pid  5065] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5080] <... write resumed>)        = 1
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5080] exit_group(0 <unfinished ...>
[pid  5065] <... ioctl resumed>)        = 0
[pid  5080] <... exit_group resumed>)   = ?
[pid  5065] close(3)                    = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5080] +++ exited with 0 +++
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5087
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5061] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5082] <... write resumed>)        = 2097152
[pid  5061] <... restart_syscall resumed>) = 0
./strace-static-x86_64: Process 5087 attached
[pid  5087] set_robust_list(0x555555646660, 24) = 0
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5087] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5061] <... openat resumed>)       = 3
[pid  5082] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5087] <... prctl resumed>)        = 0
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3)                    = 0
[pid  5087] setpgid(0, 0 <unfinished ...>
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5087] <... setpgid resumed>)      = 0
[pid  5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5088
[pid  5087] <... openat resumed>)       = 3
[pid  5087] write(3, "1000", 4./strace-static-x86_64: Process 5088 attached
)         = 4
[pid  5085] <... sendfile resumed> => [693], 571) = 571
[pid  5082] <... munmap resumed>)       = 0
[pid  5085] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5082] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5088] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5085] <... memfd_create resumed>) = 5
[pid  5088] <... set_robust_list resumed>) = 0
[pid  5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5082] <... openat resumed>)       = 6
[pid  5087] close(3 <unfinished ...>
[pid  5085] <... mmap resumed>)         = 0x7f082840d000
[pid  5088] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5087] <... close resumed>)        = 0
[pid  5082] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5088] <... prctl resumed>)        = 0
[pid  5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5082] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5088] setpgid(0, 0 <unfinished ...>
[pid  5087] <... openat resumed>)       = 3
[pid  5082] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5088] <... setpgid resumed>)      = 0
[pid  5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5082] <... ioctl resumed>)        = 0
[pid  5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5087] <... openat resumed>)       = 4
[pid  5087] sendfile(4, 3, [122] <unfinished ...>
[pid  5088] <... openat resumed>)       = 3
[pid  5088] write(3, "1000", 4 <unfinished ...>
[pid  5083] <... sendfile resumed> => [693], 571) = 571
[pid  5082] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5088] <... write resumed>)        = 4
[pid  5083] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5082] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5088] close(3 <unfinished ...>
[pid  5082] close(6 <unfinished ...>
[pid  5088] <... close resumed>)        = 0
[pid  5088] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5083] <... memfd_create resumed>) = 5
[pid  5082] <... close resumed>)        = 0
[   65.131479][ T5085] syz-executor101 (5085): drop_caches: 3
[   65.157953][ T5083] syz-executor101 (5083): drop_caches: 3
[pid  5088] <... openat resumed>)       = 3
[pid  5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5082] close(5 <unfinished ...>
[pid  5083] <... mmap resumed>)         = 0x7f082840d000
[pid  5088] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5085] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5088] sendfile(4, 3, [122] <unfinished ...>
[pid  5082] <... close resumed>)        = 0
[pid  5082] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5083] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[   65.244072][ T5086] syz-executor101 (5086): drop_caches: 3
[pid  5082] write(5, "t", 1)            = 1
[pid  5082] exit_group(0)               = ?
[pid  5082] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} ---
[pid  5060] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5083] <... write resumed>)        = 2097152
[pid  5083] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5085] <... write resumed>)        = 2097152
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5089
[pid  5085] munmap(0x7f082840d000, 138412032./strace-static-x86_64: Process 5089 attached
 <unfinished ...>
[pid  5089] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5083] <... munmap resumed>)       = 0
[pid  5089] <... set_robust_list resumed>) = 0
[pid  5083] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5085] <... munmap resumed>)       = 0
[pid  5083] <... openat resumed>)       = 6
[pid  5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5083] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5085] <... openat resumed>)       = 6
[pid  5083] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5089] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5085] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5083] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5089] <... prctl resumed>)        = 0
[pid  5085] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5083] <... ioctl resumed>)        = 0
[pid  5089] setpgid(0, 0)               = 0
[pid  5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5089] write(3, "1000", 4 <unfinished ...>
[pid  5085] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5083] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5089] <... write resumed>)        = 4
[pid  5085] <... ioctl resumed>)        = 0
[pid  5089] close(3 <unfinished ...>
[pid  5083] close(6)                    = 0
[pid  5089] <... close resumed>)        = 0
[pid  5083] close(5 <unfinished ...>
[pid  5089] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5085] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5089] <... openat resumed>)       = 3
[pid  5085] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5085] close(6 <unfinished ...>
[pid  5089] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5085] <... close resumed>)        = 0
[pid  5085] close(5 <unfinished ...>
[pid  5089] <... openat resumed>)       = 4
[pid  5089] sendfile(4, 3, [122] <unfinished ...>
[pid  5085] <... close resumed>)        = 0
[pid  5085] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5085] write(5, "t", 1 <unfinished ...>
[pid  5083] <... close resumed>)        = 0
[pid  5083] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5083] write(5, "t", 1 <unfinished ...>
[pid  5085] <... write resumed>)        = 1
[pid  5085] exit_group(0)               = ?
[pid  5085] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} ---
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[   65.455652][ T5087] syz-executor101 (5087): drop_caches: 3
[   65.492989][ T5088] syz-executor101 (5088): drop_caches: 3
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5083] <... write resumed>)        = 1
./strace-static-x86_64: Process 5090 attached
[pid  5090] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5090
[pid  5090] <... set_robust_list resumed>) = 0
[pid  5086] <... sendfile resumed> => [693], 571) = 571
[pid  5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5086] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5083] exit_group(0 <unfinished ...>
[pid  5086] <... memfd_create resumed>) = 5
[pid  5083] <... exit_group resumed>)   = ?
[pid  5090] setpgid(0, 0 <unfinished ...>
[pid  5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5083] +++ exited with 0 +++
[pid  5090] <... setpgid resumed>)      = 0
[pid  5086] <... mmap resumed>)         = 0x7f082840d000
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5068] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5090] <... openat resumed>)       = 3
[pid  5068] <... restart_syscall resumed>) = 0
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5090] write(3, "1000", 4)         = 4
[pid  5068] <... ioctl resumed>)        = 0
[pid  5090] close(3)                    = 0
[pid  5068] close(3)                    = 0
[pid  5090] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[   65.514628][ T5086] syz-executor101 (5086): drop_caches: 3
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5090] <... openat resumed>)       = 3
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5091
[pid  5090] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
./strace-static-x86_64: Process 5091 attached
[pid  5090] sendfile(4, 3, [122] <unfinished ...>
[pid  5091] set_robust_list(0x555555646660, 24) = 0
[pid  5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5091] setpgid(0, 0)               = 0
[pid  5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5091] write(3, "1000", 4)         = 4
[pid  5091] close(3)                    = 0
[pid  5091] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5091] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5091] sendfile(4, 3, [122] <unfinished ...>
[pid  5086] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid  5086] munmap(0x7f082840d000, 138412032) = 0
[pid  5086] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5086] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5086] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5086] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5086] close(6)                    = 0
[pid  5086] close(5 <unfinished ...>
[pid  5087] <... sendfile resumed> => [693], 571) = 571
[pid  5086] <... close resumed>)        = 0
[pid  5088] <... sendfile resumed> => [693], 571) = 571
[pid  5087] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5088] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5087] <... memfd_create resumed>) = 5
[pid  5088] <... memfd_create resumed>) = 5
[pid  5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5087] <... mmap resumed>)         = 0x7f082840d000
[pid  5086] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5088] <... mmap resumed>)         = 0x7f082840d000
[pid  5086] <... openat resumed>)       = 5
[pid  5086] write(5, "t", 1)            = 1
[pid  5086] exit_group(0)               = ?
[pid  5086] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} ---
[   65.771275][ T5087] syz-executor101 (5087): drop_caches: 3
[   65.790616][ T5088] syz-executor101 (5088): drop_caches: 3
[   65.794385][ T5089] syz-executor101 (5089): drop_caches: 3
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5088] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5062] <... ioctl resumed>)        = 0
[pid  5087] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5062] close(3)                    = 0
[   65.840725][ T5091] syz-executor101 (5091): drop_caches: 3
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5092
./strace-static-x86_64: Process 5092 attached
[pid  5092] set_robust_list(0x555555646660, 24) = 0
[pid  5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5092] setpgid(0, 0)               = 0
[pid  5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5092] write(3, "1000", 4)         = 4
[pid  5092] close(3)                    = 0
[pid  5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5092] sendfile(4, 3, [122] <unfinished ...>
[pid  5087] <... write resumed>)        = 2097152
[pid  5088] <... write resumed>)        = 2097152
[   65.927814][ T5090] syz-executor101 (5090): drop_caches: 3
[pid  5087] munmap(0x7f082840d000, 138412032) = 0
[pid  5088] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5087] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5088] <... munmap resumed>)       = 0
[pid  5087] <... openat resumed>)       = 6
[pid  5087] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5088] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5087] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5088] <... openat resumed>)       = 6
[pid  5088] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5087] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5088] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5087] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5088] <... ioctl resumed>)        = 0
[pid  5087] close(6)                    = 0
[pid  5087] close(5 <unfinished ...>
[pid  5088] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5088] close(6)                    = 0
[pid  5088] close(5)                    = 0
[pid  5089] <... sendfile resumed> => [693], 571) = 571
[pid  5087] <... close resumed>)        = 0
[pid  5087] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5091] <... sendfile resumed> => [693], 571) = 571
[pid  5089] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5088] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5087] <... openat resumed>)       = 5
[pid  5087] write(5, "t", 1 <unfinished ...>
[pid  5091] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5089] <... memfd_create resumed>) = 5
[pid  5088] <... openat resumed>)       = 5
[pid  5088] write(5, "t", 1 <unfinished ...>
[pid  5091] <... memfd_create resumed>) = 5
[pid  5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5089] <... mmap resumed>)         = 0x7f082840d000
[   66.078134][ T5089] syz-executor101 (5089): drop_caches: 3
[   66.116049][ T5091] syz-executor101 (5091): drop_caches: 3
[pid  5087] <... write resumed>)        = 1
[pid  5087] exit_group(0 <unfinished ...>
[pid  5088] <... write resumed>)        = 1
[pid  5087] <... exit_group resumed>)   = ?
[pid  5088] exit_group(0)               = ?
[pid  5087] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} ---
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5065] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5065] close(3 <unfinished ...>
[pid  5088] +++ exited with 0 +++
[pid  5065] <... close resumed>)        = 0
[pid  5091] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5093
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5089] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5093 attached
)       = 0
[pid  5093] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5093] <... set_robust_list resumed>) = 0
[pid  5091] <... write resumed>)        = 2097152
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5094
[pid  5091] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5093] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5091] <... munmap resumed>)       = 0
[pid  5091] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5094 attached
 <unfinished ...>
[pid  5093] <... prctl resumed>)        = 0
[pid  5094] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5093] setpgid(0, 0 <unfinished ...>
[pid  5091] <... openat resumed>)       = 6
[pid  5094] <... set_robust_list resumed>) = 0
[pid  5093] <... setpgid resumed>)      = 0
[pid  5091] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5094] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5091] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5093] <... openat resumed>)       = 3
[pid  5091] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5093] write(3, "1000", 4 <unfinished ...>
[pid  5091] <... ioctl resumed>)        = 0
[pid  5093] <... write resumed>)        = 4
[pid  5093] close(3)                    = 0
[pid  5093] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5093] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5093] sendfile(4, 3, [122] <unfinished ...>
[pid  5091] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5089] <... write resumed>)        = 2097152
[   66.211304][ T5092] syz-executor101 (5092): drop_caches: 3
[pid  5094] <... prctl resumed>)        = 0
[pid  5091] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5089] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5091] close(6)                    = 0
[pid  5091] close(5 <unfinished ...>
[pid  5089] <... munmap resumed>)       = 0
[pid  5094] setpgid(0, 0)               = 0
[pid  5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5094] write(3, "1000", 4)         = 4
[pid  5094] close(3)                    = 0
[pid  5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5089] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5094] sendfile(4, 3, [122] <unfinished ...>
[pid  5089] <... openat resumed>)       = 6
[pid  5089] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5091] <... close resumed>)        = 0
[pid  5090] <... sendfile resumed> => [693], 571) = 571
[pid  5089] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5091] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5089] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5091] <... openat resumed>)       = 5
[pid  5090] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5089] <... ioctl resumed>)        = 0
[pid  5091] write(5, "t", 1 <unfinished ...>
[pid  5090] <... memfd_create resumed>) = 5
[pid  5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5089] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5089] close(6)                    = 0
[   66.306424][ T5090] syz-executor101 (5090): drop_caches: 3
[pid  5089] close(5 <unfinished ...>
[pid  5091] <... write resumed>)        = 1
[pid  5091] exit_group(0)               = ?
[pid  5091] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=27 /* 0.27 s */} ---
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5068] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5068] close(3)                    = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5089] <... close resumed>)        = 0
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5095
./strace-static-x86_64: Process 5095 attached
[pid  5095] set_robust_list(0x555555646660, 24) = 0
[pid  5095] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5090] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5089] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5095] <... prctl resumed>)        = 0
[pid  5095] setpgid(0, 0)               = 0
[pid  5089] <... openat resumed>)       = 5
[pid  5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5089] write(5, "t", 1 <unfinished ...>
[pid  5095] <... openat resumed>)       = 3
[pid  5095] write(3, "1000", 4)         = 4
[pid  5095] close(3)                    = 0
[pid  5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5095] sendfile(4, 3, [122] <unfinished ...>
[pid  5089] <... write resumed>)        = 1
[pid  5089] exit_group(0)               = ?
[pid  5089] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=31 /* 0.31 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5096
./strace-static-x86_64: Process 5096 attached
[pid  5090] <... write resumed>)        = 2097152
[pid  5096] set_robust_list(0x555555646660, 24) = 0
[pid  5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5096] setpgid(0, 0)               = 0
[pid  5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5092] <... sendfile resumed> => [693], 571) = 571
[pid  5090] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5096] <... openat resumed>)       = 3
[pid  5090] <... munmap resumed>)       = 0
[pid  5096] write(3, "1000", 4)         = 4
[pid  5096] close(3 <unfinished ...>
[pid  5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5096] <... close resumed>)        = 0
[pid  5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5090] <... openat resumed>)       = 6
[pid  5096] <... openat resumed>)       = 3
[pid  5090] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5090] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5096] <... openat resumed>)       = 4
[pid  5090] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5096] sendfile(4, 3, [122] <unfinished ...>
[pid  5090] <... ioctl resumed>)        = 0
[pid  5090] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5092] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5090] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5090] close(6)                    = 0
[pid  5092] <... memfd_create resumed>) = 5
[   66.544183][ T5092] syz-executor101 (5092): drop_caches: 3
[pid  5090] close(5 <unfinished ...>
[pid  5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5090] <... close resumed>)        = 0
[pid  5090] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5092] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5090] <... openat resumed>)       = 5
[pid  5090] write(5, "t", 1)            = 1
[pid  5090] exit_group(0)               = ?
[pid  5090] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} ---
[   66.653592][ T5093] syz-executor101 (5093): drop_caches: 3
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5097
./strace-static-x86_64: Process 5097 attached
[pid  5097] set_robust_list(0x555555646660, 24) = 0
[pid  5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5097] setpgid(0, 0)               = 0
[pid  5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5092] <... write resumed>)        = 2097152
[pid  5097] <... openat resumed>)       = 3
[pid  5092] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5097] write(3, "1000", 4 <unfinished ...>
[pid  5092] <... munmap resumed>)       = 0
[pid  5097] <... write resumed>)        = 4
[   66.723037][ T5094] syz-executor101 (5094): drop_caches: 3
[pid  5097] close(3)                    = 0
[pid  5092] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5092] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5092] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5097] <... openat resumed>)       = 3
[pid  5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5097] sendfile(4, 3, [122] <unfinished ...>
[pid  5092] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5092] close(6)                    = 0
[pid  5092] close(5)                    = 0
[pid  5092] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5092] write(5, "t", 1)            = 1
[pid  5092] exit_group(0)               = ?
[pid  5092] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5062] close(3)                    = 0
[   66.842819][ T5095] syz-executor101 (5095): drop_caches: 3
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached
, child_tidptr=0x555555646650) = 5098
[pid  5098] set_robust_list(0x555555646660, 24) = 0
[pid  5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5098] setpgid(0, 0)               = 0
[pid  5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5093] <... sendfile resumed> => [693], 571) = 571
[pid  5098] <... openat resumed>)       = 3
[pid  5093] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5098] write(3, "1000", 4 <unfinished ...>
[pid  5093] <... memfd_create resumed>) = 5
[pid  5098] <... write resumed>)        = 4
[pid  5098] close(3 <unfinished ...>
[pid  5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5098] <... close resumed>)        = 0
[pid  5093] <... mmap resumed>)         = 0x7f082840d000
[pid  5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[   66.914423][ T5096] syz-executor101 (5096): drop_caches: 3
[   66.916803][ T5093] syz-executor101 (5093): drop_caches: 3
[pid  5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5098] sendfile(4, 3, [122] <unfinished ...>
[pid  5094] <... sendfile resumed> => [693], 571) = 571
[pid  5094] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5093] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5094] <... memfd_create resumed>) = 5
[pid  5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   67.011585][ T5094] syz-executor101 (5094): drop_caches: 3
[pid  5093] <... write resumed>)        = 2097152
[pid  5094] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5093] munmap(0x7f082840d000, 138412032) = 0
[pid  5095] <... sendfile resumed> => [693], 571) = 571
[pid  5093] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5095] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5093] <... openat resumed>)       = 6
[pid  5095] <... memfd_create resumed>) = 5
[pid  5094] <... write resumed>)        = 2097152
[pid  5093] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5093] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5093] <... ioctl resumed>)        = 0
[pid  5095] <... mmap resumed>)         = 0x7f082840d000
[   67.134992][ T5095] syz-executor101 (5095): drop_caches: 3
[   67.153008][ T5097] syz-executor101 (5097): drop_caches: 3
[pid  5093] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5093] close(6)                    = 0
[pid  5093] close(5 <unfinished ...>
[pid  5094] munmap(0x7f082840d000, 138412032) = 0
[pid  5093] <... close resumed>)        = 0
[pid  5093] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5094] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5094] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5094] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5094] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5094] close(6 <unfinished ...>
[pid  5093] <... openat resumed>)       = 5
[pid  5094] <... close resumed>)        = 0
[pid  5096] <... sendfile resumed> => [693], 571) = 571
[pid  5093] write(5, "t", 1 <unfinished ...>
[pid  5094] close(5 <unfinished ...>
[pid  5096] memfd_create("syzkaller", 0) = 5
[pid  5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   67.207288][ T5096] syz-executor101 (5096): drop_caches: 3
[   67.240638][ T5098] syz-executor101 (5098): drop_caches: 3
[pid  5095] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5094] <... close resumed>)        = 0
[pid  5093] <... write resumed>)        = 1
[pid  5094] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5093] exit_group(0 <unfinished ...>
[pid  5094] <... openat resumed>)       = 5
[pid  5093] <... exit_group resumed>)   = ?
[pid  5093] +++ exited with 0 +++
[pid  5094] write(5, "t", 1 <unfinished ...>
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5094] <... write resumed>)        = 1
[pid  5094] exit_group(0)               = ?
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5094] +++ exited with 0 +++
[pid  5065] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} ---
[pid  5065] close(3 <unfinished ...>
[pid  5061] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5065] <... close resumed>)        = 0
[pid  5061] <... restart_syscall resumed>) = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5099
[pid  5061] <... ioctl resumed>)        = 0
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5100
./strace-static-x86_64: Process 5100 attached
[pid  5100] set_robust_list(0x555555646660, 24) = 0
[pid  5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5100] setpgid(0, 0)               = 0
[pid  5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5099 attached
) = 3
[pid  5100] write(3, "1000", 4)         = 4
[pid  5100] close(3)                    = 0
[pid  5099] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5095] <... write resumed>)        = 2097152
[pid  5099] <... set_robust_list resumed>) = 0
[pid  5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5099] setpgid(0, 0)               = 0
[pid  5100] <... openat resumed>)       = 3
[pid  5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5100] sendfile(4, 3, [122] <unfinished ...>
[pid  5099] <... openat resumed>)       = 3
[pid  5096] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5099] write(3, "1000", 4)         = 4
[pid  5099] close(3)                    = 0
[pid  5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5095] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5099] <... openat resumed>)       = 3
[pid  5095] <... munmap resumed>)       = 0
[pid  5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5099] sendfile(4, 3, [122] <unfinished ...>
[pid  5095] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5095] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5095] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5095] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5095] close(6)                    = 0
[pid  5095] close(5 <unfinished ...>
[pid  5097] <... sendfile resumed> => [693], 571) = 571
[pid  5097] memfd_create("syzkaller", 0) = 5
[pid  5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5095] <... close resumed>)        = 0
[pid  5097] <... mmap resumed>)         = 0x7f082840d000
[pid  5096] <... write resumed>)        = 2097152
[pid  5095] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[   67.448044][ T5097] syz-executor101 (5097): drop_caches: 3
[pid  5095] write(5, "t", 1 <unfinished ...>
[pid  5096] munmap(0x7f082840d000, 138412032) = 0
[pid  5096] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5095] <... write resumed>)        = 1
[pid  5095] exit_group(0)               = ?
[pid  5095] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} ---
[pid  5096] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5096] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5096] <... ioctl resumed>)        = 0
[pid  5068] <... openat resumed>)       = 3
[pid  5068] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5096] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5068] close(3 <unfinished ...>
[pid  5096] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5068] <... close resumed>)        = 0
[pid  5096] close(6 <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached
 <unfinished ...>
[pid  5096] <... close resumed>)        = 0
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5101
[pid  5096] close(5 <unfinished ...>
[pid  5101] set_robust_list(0x555555646660, 24) = 0
[pid  5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5097] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5101] setpgid(0, 0)               = 0
[pid  5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5101] write(3, "1000", 4)         = 4
[pid  5101] close(3)                    = 0
[pid  5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5101] sendfile(4, 3, [122] <unfinished ...>
[pid  5098] <... sendfile resumed> => [693], 571) = 571
[pid  5096] <... close resumed>)        = 0
[pid  5096] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5098] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5096] <... openat resumed>)       = 5
[pid  5098] <... memfd_create resumed>) = 5
[   67.560646][ T5098] syz-executor101 (5098): drop_caches: 3
[pid  5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5096] write(5, "t", 1)            = 1
[pid  5096] exit_group(0)               = ?
[pid  5098] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5096] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached
 <unfinished ...>
[pid  5102] set_robust_list(0x555555646660, 24) = 0
[pid  5098] <... write resumed>)        = 2097152
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5102
[pid  5102] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5098] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5097] <... write resumed>)        = 2097152
[pid  5102] <... prctl resumed>)        = 0
[pid  5102] setpgid(0, 0)               = 0
[pid  5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5098] <... munmap resumed>)       = 0
[pid  5102] <... openat resumed>)       = 3
[pid  5102] write(3, "1000", 4 <unfinished ...>
[pid  5097] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5102] <... write resumed>)        = 4
[pid  5098] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5097] <... munmap resumed>)       = 0
[pid  5102] close(3 <unfinished ...>
[pid  5097] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5102] <... close resumed>)        = 0
[pid  5098] <... openat resumed>)       = 6
[pid  5097] <... openat resumed>)       = 6
[pid  5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5097] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5102] <... openat resumed>)       = 3
[pid  5098] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5097] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5097] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5102] <... openat resumed>)       = 4
[pid  5097] <... ioctl resumed>)        = 0
[pid  5102] sendfile(4, 3, [122] <unfinished ...>
[pid  5098] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5098] ioctl(6, LOOP_CLR_FD)       = 0
[   67.683334][ T5100] syz-executor101 (5100): drop_caches: 3
[   67.701920][ T5099] syz-executor101 (5099): drop_caches: 3
[   67.744575][ T2890] 
[   67.746949][ T2890] ======================================================
[   67.754070][ T2890] WARNING: possible circular locking dependency detected
[   67.761090][ T2890] 6.7.0-rc7-syzkaller-00029-g8735c7c84d1b #0 Not tainted
[   67.768231][ T2890] ------------------------------------------------------
[   67.775270][ T2890] kworker/u4:11/2890 is trying to acquire lock:
[   67.781528][ T2890] ffff888077748940 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1308/0x23e0
[   67.790441][ T2890] 
[   67.790441][ T2890] but task is already holding lock:
[   67.798084][ T2890] ffff88807774b310 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4c/0x630
[   67.807076][ T2890] 
[   67.807076][ T2890] which lock already depends on the new lock.
[   67.807076][ T2890] 
[   67.817613][ T2890] 
[   67.817613][ T2890] the existing dependency chain (in reverse order) is:
[   67.826637][ T2890] 
[   67.826637][ T2890] -> #1 (&ni->mrec_lock){+.+.}-{3:3}:
[   67.834234][ T2890]        lock_acquire+0x1e3/0x530
[   67.839273][ T2890]        __mutex_lock+0x136/0xd60
[   67.842848][ T5099] syz-executor101 (5099): drop_caches: 3
[   67.844306][ T2890]        map_mft_record+0x4c/0x630
[   67.855128][ T2890]        ntfs_attr_extend_allocation+0x2d0/0x3ec0
[   67.861537][ T2890]        ntfs_file_write_iter+0x37e/0x1970
[   67.867851][ T2890]        vfs_write+0x792/0xb20
[   67.872693][ T2890]        ksys_write+0x1a0/0x2c0
[   67.877535][ T2890]        do_syscall_64+0x45/0x110
[   67.882682][ T2890]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[   67.889525][ T2890] 
[   67.889525][ T2890] -> #0 (&rl->lock){++++}-{3:3}:
[   67.896729][ T2890]        validate_chain+0x1909/0x5ab0
[   67.902097][ T2890]        __lock_acquire+0x1345/0x1fd0
[   67.907549][ T2890]        lock_acquire+0x1e3/0x530
[   67.912656][ T2890]        down_read+0xb1/0xa40
[   67.917327][ T2890]        ntfs_read_folio+0x1308/0x23e0
[   67.922974][ T2890]        filemap_read_folio+0x19c/0x780
[   67.928516][ T2890]        do_read_cache_folio+0x134/0x810
[   67.934146][ T2890]        do_read_cache_page+0x30/0x200
[   67.939684][ T2890]        ntfs_sync_mft_mirror+0x25f/0x1ae0
[   67.945489][ T2890]        write_mft_record_nolock+0x1155/0x18f0
[   67.951664][ T2890]        write_mft_record+0x149/0x310
[   67.957031][ T2890]        __ntfs_write_inode+0x703/0xbb0
[   67.962741][ T2890]        __writeback_single_inode+0x69b/0xfc0
[   67.968887][ T2890]        writeback_sb_inodes+0x8e3/0x1220
[   67.974601][ T2890]        __writeback_inodes_wb+0x11b/0x260
[   67.980583][ T2890]        wb_writeback+0x461/0xc70
[   67.985704][ T2890]        wb_workfn+0xc33/0xfb0
[   67.990474][ T2890]        process_scheduled_works+0x90f/0x1420
[   67.996542][ T2890]        worker_thread+0xa5f/0x1000
[   68.001914][ T2890]        kthread+0x2d3/0x370
[   68.006584][ T2890]        ret_from_fork+0x48/0x80
[   68.011514][ T2890]        ret_from_fork_asm+0x11/0x20
[   68.016881][ T2890] 
[   68.016881][ T2890] other info that might help us debug this:
[   68.016881][ T2890] 
[   68.027093][ T2890]  Possible unsafe locking scenario:
[   68.027093][ T2890] 
[   68.034533][ T2890]        CPU0                    CPU1
[   68.039882][ T2890]        ----                    ----
[   68.045341][ T2890]   lock(&ni->mrec_lock);
[   68.049664][ T2890]                                lock(&rl->lock);
[   68.056242][ T2890]                                lock(&ni->mrec_lock);
[   68.063352][ T2890]   rlock(&rl->lock);
[   68.067331][ T2890] 
[   68.067331][ T2890]  *** DEADLOCK ***
[   68.067331][ T2890] 
[   68.075633][ T2890] 4 locks held by kworker/u4:11/2890:
[   68.080994][ T2890]  #0: ffff888141a61d38 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420
[   68.092213][ T2890]  #1: ffffc9000bcdfd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420
[   68.104726][ T2890]  #2: ffff88807fb980e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x22/0xf0
[   68.115418][ T2890]  #3: ffff88807774b310 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4c/0x630
[   68.125521][ T2890] 
[   68.125521][ T2890] stack backtrace:
[   68.131394][ T2890] CPU: 0 PID: 2890 Comm: kworker/u4:11 Not tainted 6.7.0-rc7-syzkaller-00029-g8735c7c84d1b #0
[   68.141713][ T2890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[   68.152714][ T2890] Workqueue: writeback wb_workfn (flush-7:3)
[   68.158714][ T2890] Call Trace:
[   68.162166][ T2890]  <TASK>
[   68.165172][ T2890]  dump_stack_lvl+0x1e7/0x2d0
[   68.169843][ T2890]  ? nf_tcp_handle_invalid+0x650/0x650
[   68.175298][ T2890]  ? print_circular_bug+0x12b/0x1a0
[   68.180580][ T2890]  check_noncircular+0x366/0x490
[   68.185517][ T2890]  ? noop_count+0x30/0x30
[   68.190077][ T2890]  ? print_deadlock_bug+0x610/0x610
[   68.195371][ T2890]  ? lockdep_lock+0x123/0x2b0
[   68.200040][ T2890]  ? check_noncircular+0x259/0x490
[   68.205144][ T2890]  ? check_path+0x21/0x40
[   68.209552][ T2890]  ? _find_first_zero_bit+0xd4/0x100
[   68.214833][ T2890]  validate_chain+0x1909/0x5ab0
[   68.219680][ T2890]  ? validate_chain+0x15c6/0x5ab0
[   68.224823][ T2890]  ? reacquire_held_locks+0x690/0x690
[   68.230367][ T2890]  ? reacquire_held_locks+0x690/0x690
[   68.235905][ T2890]  ? look_up_lock_class+0x77/0x160
[   68.241018][ T2890]  ? register_lock_class+0x102/0x970
[   68.246383][ T2890]  ? is_dynamic_key+0x260/0x260
[   68.251227][ T2890]  ? mark_lock+0x9a/0x350
[   68.255568][ T2890]  __lock_acquire+0x1345/0x1fd0
[   68.260415][ T2890]  lock_acquire+0x1e3/0x530
[   68.264911][ T2890]  ? ntfs_read_folio+0x1308/0x23e0
[   68.270030][ T2890]  ? read_lock_is_recursive+0x20/0x20
[   68.275395][ T2890]  ? __might_sleep+0xe0/0xe0
[   68.279985][ T2890]  ? mark_lock+0x9a/0x350
[   68.284308][ T2890]  down_read+0xb1/0xa40
[   68.288585][ T2890]  ? ntfs_read_folio+0x1308/0x23e0
[   68.293692][ T2890]  ? print_irqtrace_events+0x220/0x220
[   68.299143][ T2890]  ? __down_common+0x7b0/0x7b0
[   68.304002][ T2890]  ? _raw_read_unlock_irqrestore+0x8f/0x140
[   68.309886][ T2890]  ? lockdep_hardirqs_on+0x98/0x140
[   68.315166][ T2890]  ? _raw_read_unlock_irqrestore+0xdd/0x140
[   68.321051][ T2890]  ? _raw_read_unlock+0x40/0x40
[   68.325984][ T2890]  ? create_empty_buffers+0x53e/0x740
[   68.332070][ T2890]  ntfs_read_folio+0x1308/0x23e0
[   68.337359][ T2890]  ? ntfs_writepage+0x1630/0x1630
[   68.342514][ T2890]  ? folio_add_lru+0x9d0/0x9d0
[   68.347359][ T2890]  ? folio_add_lru+0x4b2/0x9d0
[   68.352323][ T2890]  ? folio_add_lru+0x27b/0x9d0
[   68.357097][ T2890]  filemap_read_folio+0x19c/0x780
[   68.362549][ T2890]  ? ntfs_writepage+0x1630/0x1630
[   68.367581][ T2890]  ? maybe_unlock_mmap_for_io+0xe0/0xe0
[   68.373235][ T2890]  ? seqcount_lockdep_reader_access+0x1d7/0x220
[   68.379507][ T2890]  do_read_cache_folio+0x134/0x810
[   68.384714][ T2890]  ? ntfs_writepage+0x1630/0x1630
[   68.389730][ T2890]  do_read_cache_page+0x30/0x200
[   68.394661][ T2890]  ntfs_sync_mft_mirror+0x25f/0x1ae0
[   68.399937][ T2890]  ? submit_bio_noacct_nocheck+0xa2f/0xc70
[   68.405928][ T2890]  ? should_fail_request+0x80/0x80
[   68.411034][ T2890]  ? __mark_mft_record_dirty+0x180/0x180
[   68.416661][ T2890]  write_mft_record_nolock+0x1155/0x18f0
[   68.422839][ T2890]  ? ntfs_unmap_page+0x260/0x260
[   68.427942][ T2890]  ? lockdep_hardirqs_on+0x98/0x140
[   68.433151][ T2890]  write_mft_record+0x149/0x310
[   68.438457][ T2890]  __ntfs_write_inode+0x703/0xbb0
[   68.443576][ T2890]  __writeback_single_inode+0x69b/0xfc0
[   68.449119][ T2890]  writeback_sb_inodes+0x8e3/0x1220
[   68.454496][ T2890]  ? queue_io+0x570/0x570
[   68.458826][ T2890]  ? do_raw_spin_lock+0x14e/0x370
[   68.463857][ T2890]  __writeback_inodes_wb+0x11b/0x260
[   68.469749][ T2890]  wb_writeback+0x461/0xc70
[   68.474380][ T2890]  ? percpu_ref_tryget+0x260/0x260
[   68.479539][ T2890]  wb_workfn+0xc33/0xfb0
[   68.483797][ T2890]  ? inode_wait_for_writeback+0x290/0x290
[   68.489527][ T2890]  ? lockdep_hardirqs_on_prepare+0x43c/0x780
[   68.495528][ T2890]  ? print_irqtrace_events+0x220/0x220
[   68.500997][ T2890]  ? process_scheduled_works+0x825/0x1420
[   68.506715][ T2890]  process_scheduled_works+0x90f/0x1420
[   68.512350][ T2890]  ? assign_work+0x3d0/0x3d0
[   68.516957][ T2890]  ? assign_work+0x364/0x3d0
[   68.521563][ T2890]  worker_thread+0xa5f/0x1000
[   68.526244][ T2890]  ? _raw_spin_unlock_irqrestore+0xdd/0x140
[   68.532307][ T2890]  kthread+0x2d3/0x370
[   68.536449][ T2890]  ? pr_cont_work+0x5e0/0x5e0
[   68.541117][ T2890]  ? kthread_blkcg+0xd0/0xd0
[pid  5099] <... sendfile resumed> => [693], 571) = 571
[   68.545696][ T2890]  ret_from_fork+0x48/0x80
[   68.550107][ T2890]  ? kthread_blkcg+0xd0/0xd0
[   68.554684][ T2890]  ret_from_fork_asm+0x11/0x20
[   68.559470][ T2890]  </TASK>
[   68.587226][ T5100] syz-executor101 (5100): drop_caches: 3
[   68.589576][ T5101] syz-executor101 (5101): drop_caches: 3
[   68.600029][ T5102] syz-executor101 (5102): drop_caches: 3
[pid  5097] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5101] <... sendfile resumed> => [693], 571) = 571
[pid  5100] <... sendfile resumed> => [693], 571) = 571
[pid  5099] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5097] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5101] memfd_create("syzkaller", 0) = 5
[pid  5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5097] close(6 <unfinished ...>
[pid  5098] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5099] <... memfd_create resumed>) = 5
[pid  5098] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5097] <... close resumed>)        = 0
[pid  5101] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5100] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5098] close(6 <unfinished ...>
[pid  5097] close(5)                    = 0
[   68.648938][ T5101] syz-executor101 (5101): drop_caches: 3
[   68.654359][ T5102] syz-executor101 (5102): drop_caches: 3
[pid  5099] <... mmap resumed>)         = 0x7f082840d000
[pid  5098] <... close resumed>)        = 0
[pid  5098] close(5 <unfinished ...>
[pid  5097] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5101] <... write resumed>)        = 2097152
[pid  5102] <... sendfile resumed> => [693], 571) = 571
[pid  5101] munmap(0x7f082840d000, 138412032) = 0
[pid  5102] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5101] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5101] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5101] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5102] <... memfd_create resumed>) = 5
[pid  5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5101] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5101] close(6)                    = 0
[pid  5101] close(5)                    = 0
[pid  5100] <... memfd_create resumed>) = 5
[pid  5098] <... close resumed>)        = 0
[pid  5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5097] <... openat resumed>)       = 5
[pid  5097] write(5, "t", 1 <unfinished ...>
[pid  5100] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5097] <... write resumed>)        = 1
[pid  5097] exit_group(0)               = ?
[pid  5101] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5102] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5100] <... write resumed>)        = 2097152
[pid  5099] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5098] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5097] +++ exited with 0 +++
[pid  5101] <... openat resumed>)       = 5
[pid  5098] <... openat resumed>)       = 5
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} ---
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5101] write(5, "t", 1 <unfinished ...>
[pid  5098] write(5, "t", 1 <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5100] munmap(0x7f082840d000, 138412032./strace-static-x86_64: Process 5103 attached
 <unfinished ...>
[pid  5101] <... write resumed>)        = 1
[pid  5098] <... write resumed>)        = 1
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5103
[pid  5103] set_robust_list(0x555555646660, 24) = 0
[pid  5101] exit_group(0 <unfinished ...>
[pid  5100] <... munmap resumed>)       = 0
[pid  5098] exit_group(0 <unfinished ...>
[pid  5101] <... exit_group resumed>)   = ?
[pid  5098] <... exit_group resumed>)   = ?
[pid  5098] +++ exited with 0 +++
[pid  5100] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5103] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5102] <... write resumed>)        = 2097152
[pid  5101] +++ exited with 0 +++
[pid  5099] <... write resumed>)        = 2097152
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} ---
[pid  5103] <... prctl resumed>)        = 0
[pid  5102] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5100] <... openat resumed>)       = 6
[pid  5068] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5100] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5100] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5068] <... restart_syscall resumed>) = 0
[pid  5103] setpgid(0, 0 <unfinished ...>
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5103] <... setpgid resumed>)      = 0
[pid  5100] <... ioctl resumed>)        = 0
[pid  5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5099] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5103] <... openat resumed>)       = 3
[pid  5102] <... munmap resumed>)       = 0
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5103] write(3, "1000", 4 <unfinished ...>
[pid  5102] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5100] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5103] <... write resumed>)        = 4
[pid  5102] <... openat resumed>)       = 6
[pid  5100] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5062] <... ioctl resumed>)        = 0
[pid  5103] close(3 <unfinished ...>
[pid  5102] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5100] close(6 <unfinished ...>
[pid  5099] <... munmap resumed>)       = 0
[pid  5068] <... ioctl resumed>)        = 0
[pid  5062] close(3 <unfinished ...>
[pid  5103] <... close resumed>)        = 0
[pid  5102] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5100] <... close resumed>)        = 0
[pid  5068] close(3 <unfinished ...>
[pid  5062] <... close resumed>)        = 0
[pid  5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5102] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5100] close(5 <unfinished ...>
[pid  5099] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5068] <... close resumed>)        = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5103] <... openat resumed>)       = 3
[pid  5102] <... ioctl resumed>)        = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5105 attached
 <unfinished ...>
[pid  5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5104
[pid  5105] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5103] <... openat resumed>)       = 4
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5105
[pid  5105] <... set_robust_list resumed>) = 0
[pid  5103] sendfile(4, 3, [122] <unfinished ...>
[pid  5105] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5102] ioctl(6, LOOP_SET_FD, 5./strace-static-x86_64: Process 5104 attached
 <unfinished ...>
[pid  5105] <... prctl resumed>)        = 0
[pid  5102] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5099] <... openat resumed>)       = 6
[pid  5105] setpgid(0, 0 <unfinished ...>
[pid  5102] close(6 <unfinished ...>
[pid  5105] <... setpgid resumed>)      = 0
[pid  5102] <... close resumed>)        = 0
[pid  5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5102] close(5 <unfinished ...>
[pid  5105] <... openat resumed>)       = 3
[pid  5104] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5100] <... close resumed>)        = 0
[pid  5099] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5105] write(3, "1000", 4)         = 4
[pid  5105] close(3)                    = 0
[pid  5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5104] <... set_robust_list resumed>) = 0
[pid  5099] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5104] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5099] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5104] <... prctl resumed>)        = 0
[pid  5099] <... ioctl resumed>)        = 0
[pid  5105] <... openat resumed>)       = 3
[pid  5104] setpgid(0, 0)               = 0
[pid  5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5104] write(3, "1000", 4)         = 4
[pid  5099] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5105] sendfile(4, 3, [122] <unfinished ...>
[pid  5104] close(3 <unfinished ...>
[pid  5100] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5099] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5104] <... close resumed>)        = 0
[pid  5100] <... openat resumed>)       = 5
[pid  5099] close(6 <unfinished ...>
[pid  5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5099] <... close resumed>)        = 0
[pid  5104] <... openat resumed>)       = 3
[pid  5100] write(5, "t", 1 <unfinished ...>
[pid  5099] close(5 <unfinished ...>
[pid  5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5099] <... close resumed>)        = 0
[pid  5104] <... openat resumed>)       = 4
[pid  5104] sendfile(4, 3, [122] <unfinished ...>
[pid  5100] <... write resumed>)        = 1
[pid  5102] <... close resumed>)        = 0
[pid  5102] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5102] write(5, "t", 1 <unfinished ...>
[pid  5100] exit_group(0)               = ?
[pid  5099] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5100] +++ exited with 0 +++
[pid  5099] <... openat resumed>)       = 5
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5061] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5102] <... write resumed>)        = 1
[pid  5061] <... restart_syscall resumed>) = 0
[pid  5102] exit_group(0)               = ?
[pid  5102] +++ exited with 0 +++
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3 <unfinished ...>
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5061] <... close resumed>)        = 0
[pid  5060] <... openat resumed>)       = 3
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5099] write(5, "t", 1 <unfinished ...>
[pid  5060] <... ioctl resumed>)        = 0
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5106
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5107 attached
./strace-static-x86_64: Process 5106 attached
 <unfinished ...>
[pid  5107] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5099] <... write resumed>)        = 1
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5107
[pid  5107] <... set_robust_list resumed>) = 0
[pid  5099] exit_group(0 <unfinished ...>
[pid  5107] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5106] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5099] <... exit_group resumed>)   = ?
[pid  5107] <... prctl resumed>)        = 0
[pid  5107] setpgid(0, 0)               = 0
[pid  5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5106] <... set_robust_list resumed>) = 0
[pid  5099] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5065] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5065] close(3)                    = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5106] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5107] write(3, "1000", 4)         = 4
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5108
./strace-static-x86_64: Process 5108 attached
[pid  5107] close(3 <unfinished ...>
[pid  5106] <... prctl resumed>)        = 0
[pid  5108] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5107] <... close resumed>)        = 0
[pid  5106] setpgid(0, 0 <unfinished ...>
[pid  5108] <... set_robust_list resumed>) = 0
[pid  5107] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5106] <... setpgid resumed>)      = 0
[pid  5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5108] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5107] <... openat resumed>)       = 3
[pid  5106] <... openat resumed>)       = 3
[pid  5108] <... prctl resumed>)        = 0
[pid  5106] write(3, "1000", 4 <unfinished ...>
[pid  5108] setpgid(0, 0 <unfinished ...>
[pid  5106] <... write resumed>)        = 4
[pid  5108] <... setpgid resumed>)      = 0
[pid  5106] close(3)                    = 0
[pid  5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5108] <... openat resumed>)       = 3
[pid  5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5106] <... openat resumed>)       = 3
[pid  5107] <... openat resumed>)       = 4
[pid  5107] sendfile(4, 3, [122] <unfinished ...>
[pid  5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5108] write(3, "1000", 4 <unfinished ...>
[pid  5106] <... openat resumed>)       = 4
[pid  5108] <... write resumed>)        = 4
[pid  5106] sendfile(4, 3, [122] <unfinished ...>
[pid  5108] close(3)                    = 0
[pid  5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   69.079849][ T5104] syz-executor101 (5104): drop_caches: 3
[   69.107402][ T5103] syz-executor101 (5103): drop_caches: 3
[   69.149814][ T5107] syz-executor101 (5107): drop_caches: 3
[   69.159582][ T5105] syz-executor101 (5105): drop_caches: 3
[   69.166882][ T5108] syz-executor101 (5108): drop_caches: 3
[   69.196965][ T5106] syz-executor101 (5106): drop_caches: 3
[   69.306074][ T5104] syz-executor101 (5104): drop_caches: 3
[   69.345022][ T5103] syz-executor101 (5103): drop_caches: 3
[pid  5108] sendfile(4, 3, [122] <unfinished ...>
[pid  5104] <... sendfile resumed> => [693], 571) = 571
[pid  5103] <... sendfile resumed> => [693], 571) = 571
[pid  5104] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5103] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5108] <... sendfile resumed> => [693], 571) = 571
[pid  5107] <... sendfile resumed> => [693], 571) = 571
[pid  5106] <... sendfile resumed> => [693], 571) = 571
[pid  5105] <... sendfile resumed> => [693], 571) = 571
[pid  5104] <... memfd_create resumed>) = 5
[pid  5103] <... memfd_create resumed>) = 5
[pid  5108] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5107] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5106] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5105] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5108] <... memfd_create resumed>) = 5
[pid  5107] <... memfd_create resumed>) = 5
[pid  5104] <... mmap resumed>)         = 0x7f082840d000
[pid  5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5103] <... mmap resumed>)         = 0x7f082840d000
[pid  5106] <... memfd_create resumed>) = 5
[pid  5105] <... memfd_create resumed>) = 5
[pid  5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[   69.360187][ T5107] syz-executor101 (5107): drop_caches: 3
[   69.365086][ T5105] syz-executor101 (5105): drop_caches: 3
[   69.368283][ T5108] syz-executor101 (5108): drop_caches: 3
[   69.377310][ T5106] syz-executor101 (5106): drop_caches: 3
[pid  5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5106] <... mmap resumed>)         = 0x7f082840d000
[pid  5105] <... mmap resumed>)         = 0x7f082840d000
[pid  5108] <... mmap resumed>)         = 0x7f082840d000
[pid  5105] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5107] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5106] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5104] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5103] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5108] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5107] <... write resumed>)        = 2097152
[pid  5105] <... write resumed>)        = 2097152
[pid  5104] <... write resumed>)        = 2097152
[pid  5107] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5104] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5106] <... write resumed>)        = 2097152
[pid  5108] <... write resumed>)        = 2097152
[pid  5107] <... munmap resumed>)       = 0
[pid  5106] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5105] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5104] <... munmap resumed>)       = 0
[pid  5103] <... write resumed>)        = 2097152
[pid  5108] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5104] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5103] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5104] <... openat resumed>)       = 6
[pid  5107] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5104] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5107] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5104] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5107] <... ioctl resumed>)        = 0
[pid  5104] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5107] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5107] close(6 <unfinished ...>
[pid  5104] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5105] <... munmap resumed>)       = 0
[pid  5104] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5105] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5104] close(6 <unfinished ...>
[pid  5107] <... close resumed>)        = 0
[pid  5105] <... openat resumed>)       = 6
[pid  5104] <... close resumed>)        = 0
[pid  5108] <... munmap resumed>)       = 0
[pid  5107] close(5 <unfinished ...>
[pid  5106] <... munmap resumed>)       = 0
[pid  5105] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5104] close(5 <unfinished ...>
[pid  5103] <... munmap resumed>)       = 0
[pid  5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5106] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5105] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5106] <... openat resumed>)       = 6
[pid  5105] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5103] <... openat resumed>)       = 6
[pid  5106] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5105] <... ioctl resumed>)        = 0
[pid  5103] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5106] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5106] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5103] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5108] <... openat resumed>)       = 6
[pid  5108] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5108] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5103] <... ioctl resumed>)        = 0
[pid  5106] <... ioctl resumed>)        = 0
[pid  5105] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5105] close(6)                    = 0
[pid  5105] close(5 <unfinished ...>
[pid  5108] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5107] <... close resumed>)        = 0
[pid  5108] close(6)                    = 0
[pid  5108] close(5 <unfinished ...>
[pid  5103] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5103] close(6)                    = 0
[pid  5106] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5103] close(5 <unfinished ...>
[pid  5106] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5106] close(6)                    = 0
[pid  5105] <... close resumed>)        = 0
[pid  5104] <... close resumed>)        = 0
[pid  5106] close(5 <unfinished ...>
[pid  5107] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5107] write(5, "t", 1 <unfinished ...>
[pid  5104] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5105] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5104] write(5, "t", 1 <unfinished ...>
[pid  5108] <... close resumed>)        = 0
[pid  5106] <... close resumed>)        = 0
[pid  5105] <... openat resumed>)       = 5
[pid  5103] <... close resumed>)        = 0
[pid  5105] write(5, "t", 1 <unfinished ...>
[pid  5103] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5103] write(5, "t", 1 <unfinished ...>
[pid  5108] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5106] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5107] <... write resumed>)        = 1
[pid  5106] write(5, "t", 1 <unfinished ...>
[pid  5107] exit_group(0 <unfinished ...>
[pid  5108] write(5, "t", 1 <unfinished ...>
[pid  5107] <... exit_group resumed>)   = ?
[pid  5104] <... write resumed>)        = 1
[pid  5105] <... write resumed>)        = 1
[pid  5104] exit_group(0 <unfinished ...>
[pid  5103] <... write resumed>)        = 1
[pid  5105] exit_group(0 <unfinished ...>
[pid  5104] <... exit_group resumed>)   = ?
[pid  5105] <... exit_group resumed>)   = ?
[pid  5104] +++ exited with 0 +++
[pid  5103] exit_group(0)               = ?
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5108] <... write resumed>)        = 1
[pid  5108] exit_group(0)               = ?
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5108] +++ exited with 0 +++
[pid  5062] <... openat resumed>)       = 3
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5103] +++ exited with 0 +++
[pid  5062] <... ioctl resumed>)        = 0
[pid  5106] <... write resumed>)        = 1
[pid  5062] close(3 <unfinished ...>
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} ---
[pid  5062] <... close resumed>)        = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached
 <unfinished ...>
[pid  5106] exit_group(0 <unfinished ...>
[pid  5109] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5109
[pid  5109] <... set_robust_list resumed>) = 0
[pid  5107] +++ exited with 0 +++
[pid  5106] <... exit_group resumed>)   = ?
[pid  5109] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5109] <... prctl resumed>)        = 0
[pid  5065] <... openat resumed>)       = 3
[pid  5059] <... openat resumed>)       = 3
[pid  5109] setpgid(0, 0 <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5109] <... setpgid resumed>)      = 0
[pid  5059] <... ioctl resumed>)        = 0
[pid  5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5059] close(3 <unfinished ...>
[pid  5109] <... openat resumed>)       = 3
[pid  5065] <... ioctl resumed>)        = 0
[pid  5059] <... close resumed>)        = 0
[pid  5109] write(3, "1000", 4 <unfinished ...>
[pid  5065] close(3 <unfinished ...>
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5109] <... write resumed>)        = 4
[pid  5106] +++ exited with 0 +++
[pid  5105] +++ exited with 0 +++
[pid  5065] <... close resumed>)        = 0
./strace-static-x86_64: Process 5110 attached
[pid  5109] close(3 <unfinished ...>
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5110
[pid  5110] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5109] <... close resumed>)        = 0
[pid  5060] <... openat resumed>)       = 3
[pid  5109] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5109] <... openat resumed>)       = 3
[pid  5109] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5060] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5111 attached
[pid  5110] <... set_robust_list resumed>) = 0
[pid  5109] <... openat resumed>)       = 4
[pid  5061] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5060] close(3 <unfinished ...>
[pid  5111] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5110] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5109] sendfile(4, 3, [122] <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5060] <... close resumed>)        = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
[pid  5111] <... set_robust_list resumed>) = 0
[pid  5110] <... prctl resumed>)        = 0
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5111
[pid  5061] <... restart_syscall resumed>) = 0
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5112
[pid  5068] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5112 attached
[pid  5068] close(3 <unfinished ...>
[pid  5111] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5112] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5068] <... close resumed>)        = 0
[pid  5111] <... prctl resumed>)        = 0
[pid  5112] <... set_robust_list resumed>) = 0
[pid  5112] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5111] setpgid(0, 0 <unfinished ...>
[pid  5110] setpgid(0, 0 <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5111] <... setpgid resumed>)      = 0
[pid  5110] <... setpgid resumed>)      = 0
[pid  5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5112] <... prctl resumed>)        = 0
[pid  5061] <... openat resumed>)       = 3
[pid  5112] setpgid(0, 0 <unfinished ...>
[pid  5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5112] <... setpgid resumed>)      = 0
[pid  5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5112] write(3, "1000", 4)         = 4
[pid  5112] close(3)                    = 0
[pid  5112] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5110] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5112] <... openat resumed>)       = 3
[pid  5111] <... openat resumed>)       = 3
[pid  5112] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5061] <... ioctl resumed>)        = 0
[pid  5111] write(3, "1000", 4 <unfinished ...>
[pid  5110] write(3, "1000", 4 <unfinished ...>
[pid  5061] close(3 <unfinished ...>
[pid  5111] <... write resumed>)        = 4
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5113
[pid  5111] close(3)                    = 0
[pid  5110] <... write resumed>)        = 4
[pid  5061] <... close resumed>)        = 0
[pid  5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5110] close(3 <unfinished ...>
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5112] <... openat resumed>)       = 4
[pid  5111] <... openat resumed>)       = 3
[pid  5112] sendfile(4, 3, [122]./strace-static-x86_64: Process 5113 attached
 <unfinished ...>
[pid  5110] <... close resumed>)        = 0
[pid  5113] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5111] <... openat resumed>)       = 4
[pid  5111] sendfile(4, 3, [122]./strace-static-x86_64: Process 5114 attached
 <unfinished ...>
[pid  5113] <... set_robust_list resumed>) = 0
[pid  5114] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5113] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5114] <... set_robust_list resumed>) = 0
[pid  5113] <... prctl resumed>)        = 0
[pid  5114] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5113] setpgid(0, 0 <unfinished ...>
[pid  5114] <... prctl resumed>)        = 0
[pid  5113] <... setpgid resumed>)      = 0
[pid  5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5110] <... openat resumed>)       = 3
[pid  5113] <... openat resumed>)       = 3
[pid  5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5114
[pid  5110] <... openat resumed>)       = 4
[pid  5114] setpgid(0, 0 <unfinished ...>
[pid  5113] write(3, "1000", 4 <unfinished ...>
[pid  5110] sendfile(4, 3, [122] <unfinished ...>
[pid  5113] <... write resumed>)        = 4
[pid  5113] close(3)                    = 0
[pid  5114] <... setpgid resumed>)      = 0
[pid  5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5113] <... openat resumed>)       = 3
[pid  5114] <... openat resumed>)       = 3
[pid  5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5113] sendfile(4, 3, [122] <unfinished ...>
[pid  5114] write(3, "1000", 4)         = 4
[pid  5114] close(3)                    = 0
[pid  5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   69.838681][ T5111] syz-executor101 (5111): drop_caches: 3
[   69.853263][ T5109] syz-executor101 (5109): drop_caches: 3
[   69.854867][ T5110] syz-executor101 (5110): drop_caches: 3
[   69.870472][ T5112] syz-executor101 (5112): drop_caches: 3
[   69.883252][ T5113] syz-executor101 (5113): drop_caches: 3
[   69.904634][ T5114] syz-executor101 (5114): drop_caches: 3
[   70.010750][ T5110] syz-executor101 (5110): drop_caches: 3
[   70.026616][ T5111] syz-executor101 (5111): drop_caches: 3
[pid  5114] sendfile(4, 3, [122] <unfinished ...>
[pid  5111] <... sendfile resumed> => [693], 571) = 571
[pid  5110] <... sendfile resumed> => [693], 571) = 571
[pid  5111] memfd_create("syzkaller", 0) = 5
[pid  5114] <... sendfile resumed> => [693], 571) = 571
[pid  5112] <... sendfile resumed> => [693], 571) = 571
[pid  5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5110] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5109] <... sendfile resumed> => [693], 571) = 571
[pid  5114] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5112] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5111] <... mmap resumed>)         = 0x7f082840d000
[pid  5110] <... memfd_create resumed>) = 5
[pid  5109] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5112] <... memfd_create resumed>) = 5
[pid  5114] <... memfd_create resumed>) = 5
[pid  5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[   70.070337][ T5109] syz-executor101 (5109): drop_caches: 3
[   70.086617][ T5112] syz-executor101 (5112): drop_caches: 3
[   70.104937][ T5113] syz-executor101 (5113): drop_caches: 3
[   70.110611][ T5114] syz-executor101 (5114): drop_caches: 3
[pid  5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5112] <... mmap resumed>)         = 0x7f082840d000
[pid  5110] <... mmap resumed>)         = 0x7f082840d000
[pid  5114] <... mmap resumed>)         = 0x7f082840d000
[pid  5109] <... memfd_create resumed>) = 5
[pid  5114] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5113] <... sendfile resumed> => [693], 571) = 571
[pid  5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5113] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5111] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5113] <... memfd_create resumed>) = 5
[pid  5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5112] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5110] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5109] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5114] <... write resumed>)        = 2097152
[pid  5111] <... write resumed>)        = 2097152
[pid  5114] munmap(0x7f082840d000, 138412032) = 0
[pid  5111] munmap(0x7f082840d000, 138412032) = 0
[pid  5111] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5111] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5111] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5114] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5113] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5114] <... openat resumed>)       = 6
[pid  5114] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5111] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5114] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5111] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5114] <... ioctl resumed>)        = 0
[pid  5114] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5114] close(6)                    = 0
[pid  5114] close(5 <unfinished ...>
[pid  5111] close(6)                    = 0
[pid  5111] close(5 <unfinished ...>
[pid  5114] <... close resumed>)        = 0
[pid  5112] <... write resumed>)        = 2097152
[pid  5110] <... write resumed>)        = 2097152
[pid  5112] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5110] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5112] <... munmap resumed>)       = 0
[pid  5110] <... munmap resumed>)       = 0
[pid  5112] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5112] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5112] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5112] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5112] close(6)                    = 0
[pid  5112] close(5 <unfinished ...>
[pid  5110] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5110] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5114] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5110] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5113] <... write resumed>)        = 2097152
[pid  5110] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5110] close(6 <unfinished ...>
[pid  5114] <... openat resumed>)       = 5
[pid  5112] <... close resumed>)        = 0
[pid  5111] <... close resumed>)        = 0
[pid  5109] <... write resumed>)        = 2097152
[pid  5114] write(5, "t", 1 <unfinished ...>
[pid  5113] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5110] <... close resumed>)        = 0
[pid  5109] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5110] close(5 <unfinished ...>
[pid  5113] <... munmap resumed>)       = 0
[pid  5110] <... close resumed>)        = 0
[pid  5109] <... munmap resumed>)       = 0
[pid  5109] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5112] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5111] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5109] <... openat resumed>)       = 6
[pid  5111] write(5, "t", 1 <unfinished ...>
[pid  5114] <... write resumed>)        = 1
[pid  5109] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5114] exit_group(0 <unfinished ...>
[pid  5109] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5114] <... exit_group resumed>)   = ?
[pid  5114] +++ exited with 0 +++
[pid  5112] <... openat resumed>)       = 5
[pid  5109] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5112] write(5, "t", 1 <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5113] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5109] <... ioctl resumed>)        = 0
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5113] <... openat resumed>)       = 6
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5113] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5061] <... ioctl resumed>)        = 0
[pid  5061] close(3 <unfinished ...>
[pid  5113] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5061] <... close resumed>)        = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5116 attached
 <unfinished ...>
[pid  5116] set_robust_list(0x555555646660, 24) = 0
[pid  5109] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5116] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5112] <... write resumed>)        = 1
[pid  5111] <... write resumed>)        = 1
[pid  5109] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5112] exit_group(0 <unfinished ...>
[pid  5111] exit_group(0 <unfinished ...>
[pid  5112] <... exit_group resumed>)   = ?
[pid  5111] <... exit_group resumed>)   = ?
[pid  5109] close(6 <unfinished ...>
[pid  5113] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5112] +++ exited with 0 +++
[pid  5111] +++ exited with 0 +++
[pid  5109] <... close resumed>)        = 0
[pid  5113] <... ioctl resumed>)        = 0
[pid  5109] close(5 <unfinished ...>
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5116] <... prctl resumed>)        = 0
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
[pid  5116] setpgid(0, 0 <unfinished ...>
[pid  5065] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5116] <... setpgid resumed>)      = 0
[pid  5065] <... restart_syscall resumed>) = 0
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5116
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5060] <... openat resumed>)       = 3
[pid  5116] <... openat resumed>)       = 3
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5116] write(3, "1000", 4 <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5060] <... ioctl resumed>)        = 0
[pid  5116] <... write resumed>)        = 4
[pid  5065] <... openat resumed>)       = 3
[pid  5060] close(3 <unfinished ...>
[pid  5116] close(3 <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5060] <... close resumed>)        = 0
[pid  5116] <... close resumed>)        = 0
[pid  5065] <... ioctl resumed>)        = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached
 <unfinished ...>
[pid  5116] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5065] close(3 <unfinished ...>
[pid  5117] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5116] <... openat resumed>)       = 3
[pid  5110] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5065] <... close resumed>)        = 0
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5117
[pid  5117] <... set_robust_list resumed>) = 0
[pid  5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5110] <... openat resumed>)       = 5
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5117] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5116] <... openat resumed>)       = 4
[pid  5113] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5117] <... prctl resumed>)        = 0
[pid  5116] sendfile(4, 3, [122] <unfinished ...>
[pid  5110] write(5, "t", 1 <unfinished ...>
[pid  5113] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5118
[pid  5117] setpgid(0, 0 <unfinished ...>
[pid  5113] close(6 <unfinished ...>
[pid  5117] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 5118 attached
[pid  5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5113] <... close resumed>)        = 0
[pid  5113] close(5 <unfinished ...>
[pid  5118] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5117] <... openat resumed>)       = 3
[pid  5113] <... close resumed>)        = 0
[pid  5117] write(3, "1000", 4)         = 4
[pid  5117] close(3)                    = 0
[pid  5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5118] <... set_robust_list resumed>) = 0
[pid  5117] <... openat resumed>)       = 3
[pid  5113] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5118] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5117] <... openat resumed>)       = 4
[pid  5118] <... prctl resumed>)        = 0
[pid  5117] sendfile(4, 3, [122] <unfinished ...>
[pid  5113] <... openat resumed>)       = 5
[pid  5118] setpgid(0, 0 <unfinished ...>
[pid  5113] write(5, "t", 1 <unfinished ...>
[pid  5110] <... write resumed>)        = 1
[pid  5110] exit_group(0 <unfinished ...>
[pid  5118] <... setpgid resumed>)      = 0
[pid  5110] <... exit_group resumed>)   = ?
[pid  5109] <... close resumed>)        = 0
[pid  5110] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5113] <... write resumed>)        = 1
[pid  5109] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5109] <... openat resumed>)       = 5
[pid  5113] exit_group(0 <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5113] <... exit_group resumed>)   = ?
[pid  5109] write(5, "t", 1 <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5118] <... openat resumed>)       = 3
[pid  5113] +++ exited with 0 +++
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5119
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} ---
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5118] write(3, "1000", 4 <unfinished ...>
[pid  5109] <... write resumed>)        = 1
[pid  5068] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5119 attached
[pid  5109] exit_group(0 <unfinished ...>
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5119] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5118] <... write resumed>)        = 4
[pid  5109] <... exit_group resumed>)   = ?
[pid  5068] <... ioctl resumed>)        = 0
[pid  5119] <... set_robust_list resumed>) = 0
[pid  5109] +++ exited with 0 +++
[pid  5068] close(3 <unfinished ...>
[pid  5119] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5118] close(3 <unfinished ...>
[pid  5068] <... close resumed>)        = 0
[pid  5119] <... prctl resumed>)        = 0
[pid  5118] <... close resumed>)        = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5119] setpgid(0, 0)               = 0
[pid  5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 5120 attached
[pid  5119] write(3, "1000", 4 <unfinished ...>
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5120
[pid  5062] <... openat resumed>)       = 3
[pid  5118] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5062] close(3 <unfinished ...>
[pid  5120] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5119] <... write resumed>)        = 4
[pid  5118] <... openat resumed>)       = 4
[pid  5062] <... close resumed>)        = 0
[pid  5120] <... set_robust_list resumed>) = 0
[pid  5119] close(3 <unfinished ...>
[pid  5120] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5119] <... close resumed>)        = 0
[pid  5120] <... prctl resumed>)        = 0
[pid  5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5120] setpgid(0, 0 <unfinished ...>
[pid  5119] <... openat resumed>)       = 3
[pid  5118] sendfile(4, 3, [122] <unfinished ...>
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5120] <... setpgid resumed>)      = 0
[pid  5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5119] <... openat resumed>)       = 4
[pid  5120] <... openat resumed>)       = 3
[pid  5119] sendfile(4, 3, [122]./strace-static-x86_64: Process 5121 attached
 <unfinished ...>
[pid  5120] write(3, "1000", 4 <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5121
[pid  5120] <... write resumed>)        = 4
[pid  5120] close(3)                    = 0
[pid  5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5120] sendfile(4, 3, [122] <unfinished ...>
[pid  5121] set_robust_list(0x555555646660, 24) = 0
[pid  5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5121] setpgid(0, 0)               = 0
[pid  5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5121] write(3, "1000", 4)         = 4
[pid  5121] close(3)                    = 0
[pid  5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   70.557903][ T5117] syz-executor101 (5117): drop_caches: 3
[   70.584840][ T5116] syz-executor101 (5116): drop_caches: 3
[   70.597454][ T5120] syz-executor101 (5120): drop_caches: 3
[   70.613160][ T5119] syz-executor101 (5119): drop_caches: 3
[   70.624385][ T5118] syz-executor101 (5118): drop_caches: 3
[   70.672432][ T5121] syz-executor101 (5121): drop_caches: 3
[pid  5121] sendfile(4, 3, [122] <unfinished ...>
[pid  5118] <... sendfile resumed> => [693], 571) = 571
[pid  5116] <... sendfile resumed> => [693], 571) = 571
[   70.797969][ T5118] syz-executor101 (5118): drop_caches: 3
[   70.815893][ T5121] syz-executor101 (5121): drop_caches: 3
[   70.829011][ T5120] syz-executor101 (5120): drop_caches: 3
[   70.829011][ T5116] syz-executor101 (5116): drop_caches: 3
[   70.840402][ T5117] syz-executor101 (5117): drop_caches: 3
[pid  5116] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5121] <... sendfile resumed> => [693], 571) = 571
[pid  5120] <... sendfile resumed> => [693], 571) = 571
[pid  5118] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5117] <... sendfile resumed> => [693], 571) = 571
[pid  5116] <... memfd_create resumed>) = 5
[pid  5117] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5121] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5118] <... memfd_create resumed>) = 5
[pid  5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5120] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5117] <... memfd_create resumed>) = 5
[pid  5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5121] <... memfd_create resumed>) = 5
[pid  5120] <... memfd_create resumed>) = 5
[pid  5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5119] <... sendfile resumed> => [693], 571) = 571
[pid  5120] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5119] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5118] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5119] <... memfd_create resumed>) = 5
[pid  5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   70.846598][ T5119] syz-executor101 (5119): drop_caches: 3
[pid  5116] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5121] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5117] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5120] <... write resumed>)        = 2097152
[pid  5119] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5118] <... write resumed>)        = 2097152
[pid  5120] munmap(0x7f082840d000, 138412032) = 0
[pid  5118] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5120] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5118] <... munmap resumed>)       = 0
[pid  5116] <... write resumed>)        = 2097152
[pid  5120] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5120] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5118] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5121] <... write resumed>)        = 2097152
[pid  5119] <... write resumed>)        = 2097152
[pid  5118] <... openat resumed>)       = 6
[pid  5117] <... write resumed>)        = 2097152
[pid  5116] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5121] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5120] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5118] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5121] <... munmap resumed>)       = 0
[pid  5120] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5119] <... munmap resumed>)       = 0
[pid  5118] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5117] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5120] close(6 <unfinished ...>
[pid  5121] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5120] <... close resumed>)        = 0
[pid  5119] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5117] <... munmap resumed>)       = 0
[pid  5116] <... munmap resumed>)       = 0
[pid  5118] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5120] close(5 <unfinished ...>
[pid  5121] <... openat resumed>)       = 6
[pid  5119] <... openat resumed>)       = 6
[pid  5117] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5116] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5121] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5117] <... openat resumed>)       = 6
[pid  5116] <... openat resumed>)       = 6
[pid  5117] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5117] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5119] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5116] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5121] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5119] <... ioctl resumed>)        = 0
[pid  5116] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5117] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5121] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5117] <... ioctl resumed>)        = 0
[pid  5121] <... ioctl resumed>)        = 0
[pid  5116] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5119] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5117] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] close(6)                    = 0
[pid  5117] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5119] close(5 <unfinished ...>
[pid  5117] close(6)                    = 0
[pid  5116] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5116] close(6)                    = 0
[pid  5116] close(5 <unfinished ...>
[pid  5121] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5120] <... close resumed>)        = 0
[pid  5117] close(5 <unfinished ...>
[pid  5120] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5121] close(6 <unfinished ...>
[pid  5118] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5121] <... close resumed>)        = 0
[pid  5120] <... openat resumed>)       = 5
[pid  5118] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5121] close(5 <unfinished ...>
[pid  5118] close(6)                    = 0
[pid  5120] write(5, "t", 1 <unfinished ...>
[pid  5118] close(5 <unfinished ...>
[pid  5119] <... close resumed>)        = 0
[pid  5119] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5119] write(5, "t", 1 <unfinished ...>
[pid  5120] <... write resumed>)        = 1
[pid  5119] <... write resumed>)        = 1
[pid  5120] exit_group(0 <unfinished ...>
[pid  5119] exit_group(0 <unfinished ...>
[pid  5120] <... exit_group resumed>)   = ?
[pid  5119] <... exit_group resumed>)   = ?
[pid  5120] +++ exited with 0 +++
[pid  5116] <... close resumed>)        = 0
[pid  5118] <... close resumed>)        = 0
[pid  5119] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5116] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5121] <... close resumed>)        = 0
[pid  5118] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5117] <... close resumed>)        = 0
[pid  5068] <... openat resumed>)       = 3
[pid  5121] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5118] <... openat resumed>)       = 5
[pid  5117] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5116] <... openat resumed>)       = 5
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5121] <... openat resumed>)       = 5
[pid  5118] write(5, "t", 1 <unfinished ...>
[pid  5117] <... openat resumed>)       = 5
[pid  5116] write(5, "t", 1 <unfinished ...>
[pid  5068] <... ioctl resumed>)        = 0
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5121] write(5, "t", 1 <unfinished ...>
[pid  5117] write(5, "t", 1 <unfinished ...>
[pid  5068] close(3 <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5068] <... close resumed>)        = 0
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5122 attached
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5122
[pid  5122] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] close(3)                    = 0
[pid  5122] <... set_robust_list resumed>) = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5123
./strace-static-x86_64: Process 5123 attached
[pid  5123] set_robust_list(0x555555646660, 24) = 0
[pid  5123] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5117] <... write resumed>)        = 1
[pid  5118] <... write resumed>)        = 1
[pid  5116] <... write resumed>)        = 1
[pid  5121] <... write resumed>)        = 1
[pid  5122] setpgid(0, 0 <unfinished ...>
[pid  5118] exit_group(0 <unfinished ...>
[pid  5117] exit_group(0 <unfinished ...>
[pid  5122] <... setpgid resumed>)      = 0
[pid  5121] exit_group(0 <unfinished ...>
[pid  5118] <... exit_group resumed>)   = ?
[pid  5117] <... exit_group resumed>)   = ?
[pid  5116] exit_group(0 <unfinished ...>
[pid  5123] <... prctl resumed>)        = 0
[pid  5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5121] <... exit_group resumed>)   = ?
[pid  5118] +++ exited with 0 +++
[pid  5117] +++ exited with 0 +++
[pid  5116] <... exit_group resumed>)   = ?
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5123] setpgid(0, 0 <unfinished ...>
[pid  5060] <... ioctl resumed>)        = 0
[pid  5123] <... setpgid resumed>)      = 0
[pid  5060] close(3 <unfinished ...>
[pid  5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5060] <... close resumed>)        = 0
[pid  5123] <... openat resumed>)       = 3
[pid  5116] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} ---
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5124
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5123] write(3, "1000", 4 <unfinished ...>
[pid  5122] <... openat resumed>)       = 3
[pid  5121] +++ exited with 0 +++
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5122] write(3, "1000", 4 <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5061] <... ioctl resumed>)        = 0
[pid  5061] close(3 <unfinished ...>
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5061] <... close resumed>)        = 0
[pid  5062] <... openat resumed>)       = 3
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached
 <unfinished ...>
[pid  5122] <... write resumed>)        = 4
[pid  5065] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5124] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5122] close(3 <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5062] <... ioctl resumed>)        = 0
[pid  5065] <... ioctl resumed>)        = 0
[pid  5062] close(3 <unfinished ...>
[pid  5124] <... set_robust_list resumed>) = 0
[pid  5122] <... close resumed>)        = 0
[pid  5065] close(3 <unfinished ...>
[pid  5062] <... close resumed>)        = 0
[pid  5065] <... close resumed>)        = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5127 attached
 <unfinished ...>
[pid  5123] <... write resumed>)        = 4
[pid  5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5127] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5123] close(3 <unfinished ...>
[pid  5127] <... set_robust_list resumed>) = 0
[pid  5123] <... close resumed>)        = 0
[pid  5127] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5127] <... prctl resumed>)        = 0
[pid  5124] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5123] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5128 attached
[pid  5127] setpgid(0, 0 <unfinished ...>
[pid  5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5122] <... openat resumed>)       = 3
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5128
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5127
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5125
[pid  5127] <... setpgid resumed>)      = 0
[pid  5124] <... prctl resumed>)        = 0
[pid  5123] <... openat resumed>)       = 4
[pid  5128] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5123] sendfile(4, 3, [122] <unfinished ...>
[pid  5124] setpgid(0, 0./strace-static-x86_64: Process 5125 attached
 <unfinished ...>
[pid  5128] <... set_robust_list resumed>) = 0
[pid  5127] <... openat resumed>)       = 3
[pid  5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5127] write(3, "1000", 4)         = 4
[pid  5125] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5122] <... openat resumed>)       = 4
[pid  5128] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5122] sendfile(4, 3, [122] <unfinished ...>
[pid  5127] close(3)                    = 0
[pid  5128] <... prctl resumed>)        = 0
[pid  5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5125] <... set_robust_list resumed>) = 0
[pid  5124] <... setpgid resumed>)      = 0
[pid  5128] setpgid(0, 0 <unfinished ...>
[pid  5127] <... openat resumed>)       = 3
[pid  5125] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5128] <... setpgid resumed>)      = 0
[pid  5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5125] <... prctl resumed>)        = 0
[pid  5124] <... openat resumed>)       = 3
[pid  5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5127] <... openat resumed>)       = 4
[pid  5125] setpgid(0, 0 <unfinished ...>
[pid  5124] write(3, "1000", 4 <unfinished ...>
[pid  5128] <... openat resumed>)       = 3
[pid  5127] sendfile(4, 3, [122] <unfinished ...>
[pid  5125] <... setpgid resumed>)      = 0
[pid  5124] <... write resumed>)        = 4
[pid  5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5124] close(3 <unfinished ...>
[pid  5128] write(3, "1000", 4)         = 4
[pid  5125] <... openat resumed>)       = 3
[pid  5124] <... close resumed>)        = 0
[pid  5125] write(3, "1000", 4 <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5125] <... write resumed>)        = 4
[pid  5124] <... openat resumed>)       = 3
[pid  5128] close(3 <unfinished ...>
[pid  5125] close(3 <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5128] <... close resumed>)        = 0
[pid  5125] <... close resumed>)        = 0
[pid  5124] <... openat resumed>)       = 4
[pid  5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5124] sendfile(4, 3, [122] <unfinished ...>
[pid  5128] <... openat resumed>)       = 3
[pid  5125] <... openat resumed>)       = 3
[pid  5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5125] <... openat resumed>)       = 4
[pid  5128] <... openat resumed>)       = 4
[pid  5125] sendfile(4, 3, [122] <unfinished ...>
[   71.309330][ T5125] syz-executor101 (5125): drop_caches: 3
[   71.310279][ T5123] syz-executor101 (5123): drop_caches: 3
[   71.319923][ T5122] syz-executor101 (5122): drop_caches: 3
[   71.326319][ T5127] syz-executor101 (5127): drop_caches: 3
[   71.351137][ T5128] syz-executor101 (5128): drop_caches: 3
[   71.359827][ T5124] syz-executor101 (5124): drop_caches: 3
[pid  5128] sendfile(4, 3, [122] <unfinished ...>
[pid  5127] <... sendfile resumed> => [693], 571) = 571
[pid  5123] <... sendfile resumed> => [693], 571) = 571
[pid  5127] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5122] <... sendfile resumed> => [693], 571) = 571
[pid  5123] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5127] <... memfd_create resumed>) = 5
[pid  5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5123] <... memfd_create resumed>) = 5
[pid  5127] <... mmap resumed>)         = 0x7f082840d000
[pid  5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5128] <... sendfile resumed> => [693], 571) = 571
[pid  5125] <... sendfile resumed> => [693], 571) = 571
[pid  5124] <... sendfile resumed> => [693], 571) = 571
[pid  5123] <... mmap resumed>)         = 0x7f082840d000
[pid  5122] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5128] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5125] memfd_create("syzkaller", 0) = 5
[pid  5128] <... memfd_create resumed>) = 5
[pid  5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5125] <... mmap resumed>)         = 0x7f082840d000
[pid  5128] <... mmap resumed>)         = 0x7f082840d000
[pid  5122] <... memfd_create resumed>) = 5
[pid  5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5127] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5123] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5124] memfd_create("syzkaller", 0) = 5
[   71.537787][ T5123] syz-executor101 (5123): drop_caches: 3
[   71.545006][ T5127] syz-executor101 (5127): drop_caches: 3
[   71.547055][ T5128] syz-executor101 (5128): drop_caches: 3
[   71.554847][ T5125] syz-executor101 (5125): drop_caches: 3
[   71.562921][ T5122] syz-executor101 (5122): drop_caches: 3
[   71.572551][ T5124] syz-executor101 (5124): drop_caches: 3
[pid  5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5122] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5125] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5128] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5127] <... write resumed>)        = 2097152
[pid  5123] <... write resumed>)        = 2097152
[pid  5127] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5123] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5127] <... munmap resumed>)       = 0
[pid  5124] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5123] <... munmap resumed>)       = 0
[pid  5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5127] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5123] <... openat resumed>)       = 6
[pid  5127] <... openat resumed>)       = 6
[pid  5123] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5122] <... write resumed>)        = 2097152
[pid  5127] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5123] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5127] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5123] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5127] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5125] <... write resumed>)        = 2097152
[pid  5122] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5127] <... ioctl resumed>)        = 0
[pid  5125] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5123] <... ioctl resumed>)        = 0
[pid  5122] <... munmap resumed>)       = 0
[pid  5125] <... munmap resumed>)       = 0
[pid  5124] <... write resumed>)        = 2097152
[pid  5122] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5124] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5122] <... openat resumed>)       = 6
[pid  5122] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5122] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5127] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5125] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5125] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5128] <... write resumed>)        = 2097152
[pid  5127] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5124] <... munmap resumed>)       = 0
[pid  5123] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5128] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5125] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5123] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5122] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5127] close(6 <unfinished ...>
[pid  5125] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5123] close(6 <unfinished ...>
[pid  5122] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5128] <... munmap resumed>)       = 0
[pid  5125] <... ioctl resumed>)        = 0
[pid  5124] <... openat resumed>)       = 6
[pid  5122] close(6 <unfinished ...>
[pid  5128] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5122] <... close resumed>)        = 0
[pid  5128] <... openat resumed>)       = 6
[pid  5122] close(5 <unfinished ...>
[pid  5128] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5127] <... close resumed>)        = 0
[pid  5124] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5123] <... close resumed>)        = 0
[pid  5122] <... close resumed>)        = 0
[pid  5128] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5125] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5122] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5128] <... ioctl resumed>)        = 0
[pid  5125] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5124] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5123] close(5 <unfinished ...>
[pid  5125] close(6)                    = 0
[pid  5125] close(5 <unfinished ...>
[pid  5128] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5128] close(6)                    = 0
[pid  5122] <... openat resumed>)       = 5
[pid  5127] close(5 <unfinished ...>
[pid  5125] <... close resumed>)        = 0
[pid  5124] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5122] write(5, "t", 1 <unfinished ...>
[pid  5124] <... ioctl resumed>)        = 0
[pid  5128] close(5 <unfinished ...>
[pid  5125] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5125] write(5, "t", 1 <unfinished ...>
[pid  5127] <... close resumed>)        = 0
[pid  5123] <... close resumed>)        = 0
[pid  5128] <... close resumed>)        = 0
[pid  5122] <... write resumed>)        = 1
[pid  5124] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5122] exit_group(0)               = ?
[pid  5127] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5124] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5122] +++ exited with 0 +++
[pid  5124] close(6 <unfinished ...>
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5125] <... write resumed>)        = 1
[pid  5124] <... close resumed>)        = 0
[pid  5124] close(5 <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5127] <... openat resumed>)       = 5
[pid  5125] exit_group(0)               = ?
[pid  5068] <... openat resumed>)       = 3
[pid  5127] write(5, "t", 1 <unfinished ...>
[pid  5125] +++ exited with 0 +++
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5061] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3 <unfinished ...>
[pid  5123] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5061] <... close resumed>)        = 0
[pid  5128] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5127] <... write resumed>)        = 1
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5128] <... openat resumed>)       = 5
[pid  5123] <... openat resumed>)       = 5
[pid  5128] write(5, "t", 1 <unfinished ...>
[pid  5123] write(5, "t", 1./strace-static-x86_64: Process 5130 attached
 <unfinished ...>
[pid  5127] exit_group(0 <unfinished ...>
[pid  5130] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5068] <... ioctl resumed>)        = 0
[pid  5130] <... set_robust_list resumed>) = 0
[pid  5127] <... exit_group resumed>)   = ?
[pid  5068] close(3 <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5130
[pid  5068] <... close resumed>)        = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5130] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5124] <... close resumed>)        = 0
[pid  5130] <... prctl resumed>)        = 0
[pid  5130] setpgid(0, 0)               = 0
[pid  5128] <... write resumed>)        = 1
[pid  5123] <... write resumed>)        = 1
[pid  5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5128] exit_group(0 <unfinished ...>
[pid  5123] exit_group(0 <unfinished ...>
[pid  5130] <... openat resumed>)       = 3
[pid  5128] <... exit_group resumed>)   = ?
[pid  5127] +++ exited with 0 +++
[pid  5124] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5130] write(3, "1000", 4 <unfinished ...>
[pid  5128] +++ exited with 0 +++
[pid  5123] <... exit_group resumed>)   = ?
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5131
./strace-static-x86_64: Process 5131 attached
[pid  5130] <... write resumed>)        = 4
[pid  5124] <... openat resumed>)       = 5
[pid  5123] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5131] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5130] close(3 <unfinished ...>
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5131] <... set_robust_list resumed>) = 0
[pid  5130] <... close resumed>)        = 0
[pid  5062] <... openat resumed>)       = 3
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} ---
[pid  5131] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5124] write(5, "t", 1 <unfinished ...>
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5059] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5062] <... ioctl resumed>)        = 0
[pid  5131] <... prctl resumed>)        = 0
[pid  5062] close(3 <unfinished ...>
[pid  5059] <... restart_syscall resumed>) = 0
[pid  5131] setpgid(0, 0 <unfinished ...>
[pid  5130] <... openat resumed>)       = 3
[pid  5062] <... close resumed>)        = 0
[pid  5131] <... setpgid resumed>)      = 0
[pid  5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached
 <unfinished ...>
[pid  5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5130] <... openat resumed>)       = 4
[pid  5132] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5132
[pid  5132] <... set_robust_list resumed>) = 0
[pid  5131] <... openat resumed>)       = 3
[pid  5065] <... openat resumed>)       = 3
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5132] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5130] sendfile(4, 3, [122] <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5132] <... prctl resumed>)        = 0
[pid  5131] write(3, "1000", 4 <unfinished ...>
[pid  5065] <... ioctl resumed>)        = 0
[pid  5059] <... openat resumed>)       = 3
[pid  5132] setpgid(0, 0 <unfinished ...>
[pid  5131] <... write resumed>)        = 4
[pid  5065] close(3 <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5132] <... setpgid resumed>)      = 0
[pid  5131] close(3 <unfinished ...>
[pid  5065] <... close resumed>)        = 0
[pid  5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5131] <... close resumed>)        = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
[pid  5132] <... openat resumed>)       = 3
[pid  5059] close(3./strace-static-x86_64: Process 5133 attached
 <unfinished ...>
[pid  5132] write(3, "1000", 4 <unfinished ...>
[pid  5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5133] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5132] <... write resumed>)        = 4
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5133
[pid  5059] <... close resumed>)        = 0
[pid  5133] <... set_robust_list resumed>) = 0
[pid  5132] close(3 <unfinished ...>
[pid  5131] <... openat resumed>)       = 3
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5133] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5132] <... close resumed>)        = 0
[pid  5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5133] <... prctl resumed>)        = 0
[pid  5132] <... openat resumed>)       = 3
[pid  5131] <... openat resumed>)       = 4
[pid  5133] setpgid(0, 0 <unfinished ...>
[pid  5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5134 attached
 <unfinished ...>
[pid  5133] <... setpgid resumed>)      = 0
[pid  5132] <... openat resumed>)       = 4
[pid  5134] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5132] sendfile(4, 3, [122] <unfinished ...>
[pid  5131] sendfile(4, 3, [122] <unfinished ...>
[pid  5134] <... set_robust_list resumed>) = 0
[pid  5133] <... openat resumed>)       = 3
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5134
[pid  5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5134] setpgid(0, 0)               = 0
[pid  5133] write(3, "1000", 4 <unfinished ...>
[pid  5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5133] <... write resumed>)        = 4
[pid  5133] close(3)                    = 0
[pid  5134] <... openat resumed>)       = 3
[pid  5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5134] write(3, "1000", 4 <unfinished ...>
[pid  5133] <... openat resumed>)       = 3
[pid  5124] <... write resumed>)        = 1
[pid  5134] <... write resumed>)        = 4
[pid  5134] close(3)                    = 0
[pid  5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5134] sendfile(4, 3, [122] <unfinished ...>
[pid  5124] exit_group(0 <unfinished ...>
[pid  5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5124] <... exit_group resumed>)   = ?
[pid  5133] <... openat resumed>)       = 4
[pid  5133] sendfile(4, 3, [122] <unfinished ...>
[pid  5124] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5135
./strace-static-x86_64: Process 5135 attached
[pid  5135] set_robust_list(0x555555646660, 24) = 0
[pid  5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5135] setpgid(0, 0)               = 0
[pid  5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5135] write(3, "1000", 4)         = 4
[pid  5135] close(3)                    = 0
[pid  5135] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5135] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   71.976266][ T5132] syz-executor101 (5132): drop_caches: 3
[   71.979766][ T5130] syz-executor101 (5130): drop_caches: 3
[   71.991938][ T5131] syz-executor101 (5131): drop_caches: 3
[   71.997255][ T5133] syz-executor101 (5133): drop_caches: 3
[   72.003894][ T5134] syz-executor101 (5134): drop_caches: 3
[   72.153773][ T5135] syz-executor101 (5135): drop_caches: 3
[pid  5135] sendfile(4, 3, [122] <unfinished ...>
[pid  5130] <... sendfile resumed> => [693], 571) = 571
[pid  5130] memfd_create("syzkaller", 0) = 5
[pid  5131] <... sendfile resumed> => [693], 571) = 571
[   72.254557][ T5130] syz-executor101 (5130): drop_caches: 3
[   72.266518][ T5131] syz-executor101 (5131): drop_caches: 3
[   72.290841][ T5132] syz-executor101 (5132): drop_caches: 3
[pid  5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5135] <... sendfile resumed> => [693], 571) = 571
[pid  5131] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5130] <... mmap resumed>)         = 0x7f082840d000
[pid  5132] <... sendfile resumed> => [693], 571) = 571
[pid  5132] memfd_create("syzkaller", 0) = 5
[pid  5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5134] <... sendfile resumed> => [693], 571) = 571
[pid  5135] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5134] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5131] <... memfd_create resumed>) = 5
[pid  5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5134] <... memfd_create resumed>) = 5
[pid  5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5133] <... sendfile resumed> => [693], 571) = 571
[pid  5135] <... memfd_create resumed>) = 5
[pid  5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5133] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5135] <... mmap resumed>)         = 0x7f082840d000
[pid  5133] <... memfd_create resumed>) = 5
[   72.304103][ T5135] syz-executor101 (5135): drop_caches: 3
[   72.304711][ T5134] syz-executor101 (5134): drop_caches: 3
[   72.311258][ T5133] syz-executor101 (5133): drop_caches: 3
[pid  5132] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5134] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5132] <... write resumed>)        = 2097152
[pid  5131] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5135] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5133] <... mmap resumed>)         = 0x7f082840d000
[pid  5132] munmap(0x7f082840d000, 138412032) = 0
[pid  5132] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5130] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5132] <... openat resumed>)       = 6
[pid  5132] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5132] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5132] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5132] close(6 <unfinished ...>
[pid  5133] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5132] <... close resumed>)        = 0
[pid  5132] close(5 <unfinished ...>
[pid  5135] <... write resumed>)        = 2097152
[pid  5132] <... close resumed>)        = 0
[pid  5131] <... write resumed>)        = 2097152
[pid  5135] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5131] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5135] <... munmap resumed>)       = 0
[pid  5131] <... munmap resumed>)       = 0
[pid  5135] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5131] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5135] <... openat resumed>)       = 6
[pid  5131] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5135] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5131] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5135] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5131] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5135] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5131] <... ioctl resumed>)        = 0
[pid  5135] <... ioctl resumed>)        = 0
[pid  5134] <... write resumed>)        = 2097152
[pid  5133] <... write resumed>)        = 2097152
[pid  5135] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5133] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5131] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5135] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5131] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5135] close(6 <unfinished ...>
[pid  5131] close(6)                    = 0
[pid  5131] close(5 <unfinished ...>
[pid  5134] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5132] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5134] <... munmap resumed>)       = 0
[pid  5134] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5135] <... close resumed>)        = 0
[pid  5134] <... openat resumed>)       = 6
[pid  5134] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5132] <... openat resumed>)       = 5
[pid  5132] write(5, "t", 1 <unfinished ...>
[pid  5135] close(5 <unfinished ...>
[pid  5134] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5134] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5134] close(6)                    = 0
[pid  5134] close(5 <unfinished ...>
[pid  5133] <... munmap resumed>)       = 0
[pid  5130] <... write resumed>)        = 2097152
[pid  5133] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5132] <... write resumed>)        = 1
[pid  5132] exit_group(0)               = ?
[pid  5133] <... openat resumed>)       = 6
[pid  5133] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5132] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5133] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5133] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5133] <... ioctl resumed>)        = 0
[pid  5062] close(3)                    = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached
 <unfinished ...>
[pid  5136] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5136
[pid  5136] <... set_robust_list resumed>) = 0
[pid  5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5136] setpgid(0, 0)               = 0
[pid  5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5136] write(3, "1000", 4 <unfinished ...>
[pid  5130] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5133] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5136] <... write resumed>)        = 4
[pid  5133] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5136] close(3 <unfinished ...>
[pid  5133] close(6 <unfinished ...>
[pid  5136] <... close resumed>)        = 0
[pid  5133] <... close resumed>)        = 0
[pid  5133] close(5 <unfinished ...>
[pid  5136] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5136] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5131] <... close resumed>)        = 0
[pid  5136] <... openat resumed>)       = 4
[pid  5135] <... close resumed>)        = 0
[pid  5134] <... close resumed>)        = 0
[pid  5131] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5130] <... munmap resumed>)       = 0
[pid  5130] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5136] sendfile(4, 3, [122] <unfinished ...>
[pid  5135] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5134] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5133] <... close resumed>)        = 0
[pid  5131] <... openat resumed>)       = 5
[pid  5130] <... openat resumed>)       = 6
[pid  5135] <... openat resumed>)       = 5
[pid  5130] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5135] write(5, "t", 1 <unfinished ...>
[pid  5130] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5134] <... openat resumed>)       = 5
[pid  5131] write(5, "t", 1 <unfinished ...>
[pid  5130] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5134] write(5, "t", 1 <unfinished ...>
[pid  5133] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5130] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5133] write(5, "t", 1 <unfinished ...>
[pid  5130] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5130] close(6)                    = 0
[pid  5130] close(5 <unfinished ...>
[pid  5134] <... write resumed>)        = 1
[pid  5133] <... write resumed>)        = 1
[pid  5131] <... write resumed>)        = 1
[pid  5134] exit_group(0 <unfinished ...>
[pid  5133] exit_group(0 <unfinished ...>
[pid  5134] <... exit_group resumed>)   = ?
[pid  5133] <... exit_group resumed>)   = ?
[pid  5131] exit_group(0 <unfinished ...>
[pid  5134] +++ exited with 0 +++
[pid  5133] +++ exited with 0 +++
[pid  5131] <... exit_group resumed>)   = ?
[pid  5130] <... close resumed>)        = 0
[pid  5135] <... write resumed>)        = 1
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5131] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5065] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5065] <... restart_syscall resumed>) = 0
[pid  5068] <... openat resumed>)       = 3
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5135] exit_group(0 <unfinished ...>
[pid  5068] <... ioctl resumed>)        = 0
[pid  5059] <... ioctl resumed>)        = 0
[pid  5068] close(3 <unfinished ...>
[pid  5059] close(3 <unfinished ...>
[pid  5068] <... close resumed>)        = 0
[pid  5135] <... exit_group resumed>)   = ?
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5059] <... close resumed>)        = 0
./strace-static-x86_64: Process 5137 attached
[pid  5135] +++ exited with 0 +++
[pid  5065] <... openat resumed>)       = 3
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5137] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5137
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5065] <... ioctl resumed>)        = 0
[pid  5065] close(3)                    = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached
 <unfinished ...>
[pid  5137] <... set_robust_list resumed>) = 0
[pid  5139] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5139
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5138
[pid  5139] <... set_robust_list resumed>) = 0
[pid  5137] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5139] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5137] <... prctl resumed>)        = 0
[pid  5139] <... prctl resumed>)        = 0
[pid  5060] <... openat resumed>)       = 3
[pid  5137] setpgid(0, 0 <unfinished ...>
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5137] <... setpgid resumed>)      = 0
[pid  5130] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5060] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5138 attached
[pid  5139] setpgid(0, 0 <unfinished ...>
[pid  5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5060] close(3 <unfinished ...>
[pid  5139] <... setpgid resumed>)      = 0
[pid  5138] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5137] <... openat resumed>)       = 3
[pid  5060] <... close resumed>)        = 0
[pid  5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5138] <... set_robust_list resumed>) = 0
[pid  5137] write(3, "1000", 4 <unfinished ...>
[pid  5130] <... openat resumed>)       = 5
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5139] <... openat resumed>)       = 3
[pid  5138] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5137] <... write resumed>)        = 4
[pid  5130] write(5, "t", 1 <unfinished ...>
[pid  5139] write(3, "1000", 4 <unfinished ...>
[pid  5138] <... prctl resumed>)        = 0
[pid  5139] <... write resumed>)        = 4
[pid  5138] setpgid(0, 0 <unfinished ...>
[pid  5139] close(3 <unfinished ...>
[pid  5138] <... setpgid resumed>)      = 0
[pid  5139] <... close resumed>)        = 0
[pid  5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5138] <... openat resumed>)       = 3
[pid  5139] <... openat resumed>)       = 3
[pid  5138] write(3, "1000", 4 <unfinished ...>
[pid  5137] close(3 <unfinished ...>
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5140
./strace-static-x86_64: Process 5140 attached
[pid  5137] <... close resumed>)        = 0
[pid  5140] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5138] <... write resumed>)        = 4
[pid  5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5140] <... set_robust_list resumed>) = 0
[pid  5138] close(3 <unfinished ...>
[pid  5137] <... openat resumed>)       = 3
[pid  5140] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5138] <... close resumed>)        = 0
[pid  5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5140] <... prctl resumed>)        = 0
[pid  5138] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5140] setpgid(0, 0 <unfinished ...>
[pid  5138] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5140] <... setpgid resumed>)      = 0
[pid  5138] <... openat resumed>)       = 4
[pid  5137] <... openat resumed>)       = 4
[pid  5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5138] sendfile(4, 3, [122] <unfinished ...>
[pid  5137] sendfile(4, 3, [122] <unfinished ...>
[pid  5140] <... openat resumed>)       = 3
[pid  5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5140] write(3, "1000", 4 <unfinished ...>
[pid  5139] <... openat resumed>)       = 4
[pid  5130] <... write resumed>)        = 1
[pid  5140] <... write resumed>)        = 4
[pid  5139] sendfile(4, 3, [122] <unfinished ...>
[pid  5130] exit_group(0 <unfinished ...>
[pid  5140] close(3 <unfinished ...>
[pid  5130] <... exit_group resumed>)   = ?
[pid  5140] <... close resumed>)        = 0
[pid  5130] +++ exited with 0 +++
[pid  5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5140] <... openat resumed>)       = 3
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5140] sendfile(4, 3, [122] <unfinished ...>
[pid  5061] <... ioctl resumed>)        = 0
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached
 <unfinished ...>
[pid  5141] set_robust_list(0x555555646660, 24) = 0
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5141
[pid  5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5141] setpgid(0, 0)               = 0
[pid  5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5141] write(3, "1000", 4)         = 4
[pid  5141] close(3)                    = 0
[pid  5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   72.717116][ T5137] syz-executor101 (5137): drop_caches: 3
[   72.719026][ T5136] syz-executor101 (5136): drop_caches: 3
[   72.738381][ T5140] syz-executor101 (5140): drop_caches: 3
[   72.746813][ T5138] syz-executor101 (5138): drop_caches: 3
[   72.756058][ T5139] syz-executor101 (5139): drop_caches: 3
[   72.779817][ T5141] syz-executor101 (5141): drop_caches: 3
[pid  5141] sendfile(4, 3, [122] <unfinished ...>
[pid  5140] <... sendfile resumed> => [693], 571) = 571
[pid  5137] <... sendfile resumed> => [693], 571) = 571
[pid  5138] <... sendfile resumed> => [693], 571) = 571
[   73.000327][ T5137] syz-executor101 (5137): drop_caches: 3
[   73.008084][ T5138] syz-executor101 (5138): drop_caches: 3
[   73.031149][ T5140] syz-executor101 (5140): drop_caches: 3
[   73.042754][ T5136] syz-executor101 (5136): drop_caches: 3
[pid  5140] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5139] <... sendfile resumed> => [693], 571) = 571
[pid  5138] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5137] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5136] <... sendfile resumed> => [693], 571) = 571
[pid  5139] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5138] <... memfd_create resumed>) = 5
[pid  5137] <... memfd_create resumed>) = 5
[pid  5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5138] <... mmap resumed>)         = 0x7f082840d000
[pid  5137] <... mmap resumed>)         = 0x7f082840d000
[pid  5140] <... memfd_create resumed>) = 5
[pid  5139] <... memfd_create resumed>) = 5
[pid  5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5136] memfd_create("syzkaller", 0) = 5
[pid  5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5140] <... mmap resumed>)         = 0x7f082840d000
[pid  5139] <... mmap resumed>)         = 0x7f082840d000
[pid  5136] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5141] <... sendfile resumed> => [693], 571) = 571
[pid  5138] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5137] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5141] memfd_create("syzkaller", 0) = 5
[pid  5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   73.053086][ T5139] syz-executor101 (5139): drop_caches: 3
[   73.079250][ T5141] syz-executor101 (5141): drop_caches: 3
[pid  5139] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5140] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5138] <... write resumed>)        = 2097152
[pid  5139] <... write resumed>)        = 2097152
[pid  5136] <... write resumed>)        = 2097152
[pid  5137] <... write resumed>)        = 2097152
[pid  5137] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5141] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5137] <... munmap resumed>)       = 0
[pid  5140] <... write resumed>)        = 2097152
[pid  5139] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5138] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5137] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5136] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5141] <... write resumed>)        = 2097152
[pid  5141] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5137] <... openat resumed>)       = 6
[pid  5140] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5137] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5138] <... munmap resumed>)       = 0
[pid  5137] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5137] <... ioctl resumed>)        = 0
[pid  5138] <... openat resumed>)       = 6
[pid  5138] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5137] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5141] <... munmap resumed>)       = 0
[pid  5138] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5137] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5138] <... ioctl resumed>)        = 0
[pid  5137] close(6 <unfinished ...>
[pid  5141] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5140] <... munmap resumed>)       = 0
[pid  5139] <... munmap resumed>)       = 0
[pid  5137] <... close resumed>)        = 0
[pid  5136] <... munmap resumed>)       = 0
[pid  5140] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5139] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5138] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5137] close(5 <unfinished ...>
[pid  5140] <... openat resumed>)       = 6
[pid  5139] <... openat resumed>)       = 6
[pid  5138] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5136] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5138] close(6 <unfinished ...>
[pid  5141] <... openat resumed>)       = 6
[pid  5141] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5138] <... close resumed>)        = 0
[pid  5136] <... openat resumed>)       = 6
[pid  5141] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5138] close(5 <unfinished ...>
[pid  5136] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5141] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5140] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5136] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5136] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5139] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5139] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5136] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5139] <... ioctl resumed>)        = 0
[pid  5136] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5136] close(6)                    = 0
[pid  5136] close(5 <unfinished ...>
[pid  5140] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5139] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5141] <... ioctl resumed>)        = 0
[pid  5140] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5139] close(6 <unfinished ...>
[pid  5140] <... ioctl resumed>)        = 0
[pid  5139] <... close resumed>)        = 0
[pid  5139] close(5 <unfinished ...>
[pid  5141] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5140] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5141] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5140] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5141] close(6 <unfinished ...>
[pid  5140] close(6 <unfinished ...>
[pid  5141] <... close resumed>)        = 0
[pid  5141] close(5 <unfinished ...>
[pid  5140] <... close resumed>)        = 0
[pid  5138] <... close resumed>)        = 0
[pid  5137] <... close resumed>)        = 0
[pid  5136] <... close resumed>)        = 0
[pid  5138] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5141] <... close resumed>)        = 0
[pid  5140] close(5 <unfinished ...>
[pid  5137] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5139] <... close resumed>)        = 0
[pid  5139] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5136] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5139] <... openat resumed>)       = 5
[pid  5138] <... openat resumed>)       = 5
[pid  5137] <... openat resumed>)       = 5
[pid  5136] <... openat resumed>)       = 5
[pid  5139] write(5, "t", 1 <unfinished ...>
[pid  5138] write(5, "t", 1 <unfinished ...>
[pid  5137] write(5, "t", 1 <unfinished ...>
[pid  5136] write(5, "t", 1 <unfinished ...>
[pid  5141] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5141] write(5, "t", 1 <unfinished ...>
[pid  5136] <... write resumed>)        = 1
[pid  5136] exit_group(0)               = ?
[pid  5136] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5141] <... write resumed>)        = 1
[pid  5139] <... write resumed>)        = 1
[pid  5138] <... write resumed>)        = 1
[pid  5137] <... write resumed>)        = 1
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5141] exit_group(0 <unfinished ...>
[pid  5139] exit_group(0 <unfinished ...>
[pid  5138] exit_group(0 <unfinished ...>
[pid  5137] exit_group(0 <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5141] <... exit_group resumed>)   = ?
[pid  5139] <... exit_group resumed>)   = ?
[pid  5138] <... exit_group resumed>)   = ?
[pid  5137] <... exit_group resumed>)   = ?
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5139] +++ exited with 0 +++
[pid  5062] <... ioctl resumed>)        = 0
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5062] close(3)                    = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5138] +++ exited with 0 +++
./strace-static-x86_64: Process 5142 attached
[pid  5142] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5142
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5142] <... set_robust_list resumed>) = 0
[pid  5141] +++ exited with 0 +++
[pid  5059] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5142] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5059] <... restart_syscall resumed>) = 0
[pid  5142] <... prctl resumed>)        = 0
[pid  5065] <... openat resumed>)       = 3
[pid  5061] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5142] setpgid(0, 0 <unfinished ...>
[pid  5061] <... restart_syscall resumed>) = 0
[pid  5142] <... setpgid resumed>)      = 0
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5061] <... openat resumed>)       = 3
[pid  5142] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5061] <... ioctl resumed>)        = 0
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5065] <... ioctl resumed>)        = 0
[pid  5061] close(3 <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
[pid  5137] +++ exited with 0 +++
[pid  5142] write(3, "1000", 4 <unfinished ...>
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5065] close(3 <unfinished ...>
[pid  5061] <... close resumed>)        = 0
[pid  5059] close(3 <unfinished ...>
[pid  5142] <... write resumed>)        = 4
[pid  5065] <... close resumed>)        = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5143 attached
 <unfinished ...>
[pid  5142] close(3 <unfinished ...>
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] <... close resumed>)        = 0
[pid  5143] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5142] <... close resumed>)        = 0
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5143
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5143] <... set_robust_list resumed>) = 0
[pid  5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5143] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5145 attached
./strace-static-x86_64: Process 5144 attached
[pid  5143] <... prctl resumed>)        = 0
[pid  5142] <... openat resumed>)       = 3
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5144
[pid  5143] setpgid(0, 0 <unfinished ...>
[pid  5068] <... ioctl resumed>)        = 0
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5145
[pid  5145] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5144] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5143] <... setpgid resumed>)      = 0
[pid  5068] close(3 <unfinished ...>
[pid  5145] <... set_robust_list resumed>) = 0
[pid  5144] <... set_robust_list resumed>) = 0
[pid  5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5068] <... close resumed>)        = 0
[pid  5145] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5144] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5143] <... openat resumed>)       = 3
[pid  5142] <... openat resumed>)       = 4
[pid  5140] <... close resumed>)        = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5145] <... prctl resumed>)        = 0
[pid  5144] <... prctl resumed>)        = 0
[pid  5143] write(3, "1000", 4 <unfinished ...>
[pid  5142] sendfile(4, 3, [122] <unfinished ...>
[pid  5140] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5145] setpgid(0, 0 <unfinished ...>
[pid  5144] setpgid(0, 0 <unfinished ...>
[pid  5143] <... write resumed>)        = 4
[pid  5145] <... setpgid resumed>)      = 0
[pid  5144] <... setpgid resumed>)      = 0
[pid  5143] close(3 <unfinished ...>
[pid  5140] <... openat resumed>)       = 5
[pid  5143] <... close resumed>)        = 0
[pid  5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5143] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5144] <... openat resumed>)       = 3
[pid  5140] write(5, "t", 1./strace-static-x86_64: Process 5146 attached
 <unfinished ...>
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5146
[pid  5146] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5145] <... openat resumed>)       = 3
[pid  5143] <... openat resumed>)       = 3
[pid  5146] <... set_robust_list resumed>) = 0
[pid  5145] write(3, "1000", 4 <unfinished ...>
[pid  5143] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5146] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5144] write(3, "1000", 4 <unfinished ...>
[pid  5143] <... openat resumed>)       = 4
[pid  5144] <... write resumed>)        = 4
[pid  5143] sendfile(4, 3, [122] <unfinished ...>
[pid  5146] <... prctl resumed>)        = 0
[pid  5144] close(3 <unfinished ...>
[pid  5146] setpgid(0, 0 <unfinished ...>
[pid  5145] <... write resumed>)        = 4
[pid  5144] <... close resumed>)        = 0
[pid  5146] <... setpgid resumed>)      = 0
[pid  5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5140] <... write resumed>)        = 1
[pid  5146] <... openat resumed>)       = 3
[pid  5145] close(3 <unfinished ...>
[pid  5144] <... openat resumed>)       = 3
[pid  5140] exit_group(0 <unfinished ...>
[pid  5146] write(3, "1000", 4 <unfinished ...>
[pid  5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5140] <... exit_group resumed>)   = ?
[pid  5146] <... write resumed>)        = 4
[pid  5145] <... close resumed>)        = 0
[pid  5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5140] +++ exited with 0 +++
[pid  5146] close(3)                    = 0
[pid  5145] <... openat resumed>)       = 4
[pid  5144] <... openat resumed>)       = 4
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} ---
[pid  5145] sendfile(4, 3, [122] <unfinished ...>
[pid  5144] sendfile(4, 3, [122] <unfinished ...>
[pid  5060] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5060] <... restart_syscall resumed>) = 0
[pid  5146] <... openat resumed>)       = 3
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5060] close(3 <unfinished ...>
[pid  5146] <... openat resumed>)       = 4
[pid  5060] <... close resumed>)        = 0
[pid  5146] sendfile(4, 3, [122] <unfinished ...>
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5147 attached
 <unfinished ...>
[pid  5147] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5147
[pid  5147] <... set_robust_list resumed>) = 0
[pid  5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5147] setpgid(0, 0)               = 0
[pid  5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5147] write(3, "1000", 4)         = 4
[pid  5147] close(3)                    = 0
[pid  5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   73.490716][ T5143] syz-executor101 (5143): drop_caches: 3
[   73.508243][ T5144] syz-executor101 (5144): drop_caches: 3
[   73.509804][ T5146] syz-executor101 (5146): drop_caches: 3
[   73.526296][ T5142] syz-executor101 (5142): drop_caches: 3
[   73.535365][ T5145] syz-executor101 (5145): drop_caches: 3
[pid  5147] sendfile(4, 3, [122] <unfinished ...>
[pid  5144] <... sendfile resumed> => [693], 571) = 571
[pid  5144] memfd_create("syzkaller", 0) = 5
[pid  5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   73.645677][ T5144] syz-executor101 (5144): drop_caches: 3
[   73.678536][ T5147] syz-executor101 (5147): drop_caches: 3
[pid  5144] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid  5143] <... sendfile resumed> => [693], 571) = 571
[pid  5142] <... sendfile resumed> => [693], 571) = 571
[pid  5144] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5143] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5142] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5143] <... memfd_create resumed>) = 5
[pid  5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5146] <... sendfile resumed> => [693], 571) = 571
[pid  5144] <... munmap resumed>)       = 0
[pid  5142] <... memfd_create resumed>) = 5
[pid  5144] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5144] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5142] <... mmap resumed>)         = 0x7f082840d000
[pid  5146] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5144] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5144] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5146] <... memfd_create resumed>) = 5
[pid  5144] <... ioctl resumed>)        = 0
[   73.753781][ T5142] syz-executor101 (5142): drop_caches: 3
[   73.764712][ T5143] syz-executor101 (5143): drop_caches: 3
[   73.765482][ T5146] syz-executor101 (5146): drop_caches: 3
[   73.774577][ T5145] syz-executor101 (5145): drop_caches: 3
[pid  5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5147] <... sendfile resumed> => [693], 571) = 571
[pid  5144] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5144] close(6)                    = 0
[pid  5144] close(5 <unfinished ...>
[pid  5145] <... sendfile resumed> => [693], 571) = 571
[pid  5145] memfd_create("syzkaller", 0) = 5
[pid  5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5147] memfd_create("syzkaller", 0) = 5
[pid  5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5143] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5142] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5144] <... close resumed>)        = 0
[pid  5145] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[   73.805922][ T5147] syz-executor101 (5147): drop_caches: 3
[pid  5144] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5144] write(5, "t", 1 <unfinished ...>
[pid  5146] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5142] <... write resumed>)        = 2097152
[pid  5143] <... write resumed>)        = 2097152
[pid  5143] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5147] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5144] <... write resumed>)        = 1
[pid  5143] <... munmap resumed>)       = 0
[pid  5142] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5144] exit_group(0)               = ?
[pid  5143] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5143] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5143] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5144] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5146] <... write resumed>)        = 2097152
[pid  5145] <... write resumed>)        = 2097152
[pid  5142] <... munmap resumed>)       = 0
[pid  5146] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5143] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5142] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5143] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5142] <... openat resumed>)       = 6
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5143] close(6 <unfinished ...>
[pid  5142] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5143] <... close resumed>)        = 0
[pid  5142] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5065] <... openat resumed>)       = 3
[pid  5143] close(5 <unfinished ...>
[pid  5142] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5146] <... munmap resumed>)       = 0
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5142] <... ioctl resumed>)        = 0
[pid  5145] munmap(0x7f082840d000, 138412032) = 0
[pid  5147] <... write resumed>)        = 2097152
[pid  5146] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5145] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5143] <... close resumed>)        = 0
[pid  5142] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5065] <... ioctl resumed>)        = 0
[pid  5147] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5146] <... openat resumed>)       = 6
[pid  5145] <... openat resumed>)       = 6
[pid  5142] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5065] close(3 <unfinished ...>
[pid  5145] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5142] close(6 <unfinished ...>
[pid  5065] <... close resumed>)        = 0
[pid  5146] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5145] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5142] <... close resumed>)        = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5145] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5142] close(5 <unfinished ...>
[pid  5146] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5145] <... ioctl resumed>)        = 0
[pid  5143] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000./strace-static-x86_64: Process 5148 attached
 <unfinished ...>
[pid  5147] <... munmap resumed>)       = 0
[pid  5146] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5143] <... openat resumed>)       = 5
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5148
[pid  5148] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5147] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5146] <... ioctl resumed>)        = 0
[pid  5145] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5143] write(5, "t", 1 <unfinished ...>
[pid  5148] <... set_robust_list resumed>) = 0
[pid  5147] <... openat resumed>)       = 6
[pid  5145] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5148] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5147] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5145] close(6 <unfinished ...>
[pid  5148] <... prctl resumed>)        = 0
[pid  5147] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5145] <... close resumed>)        = 0
[pid  5145] close(5 <unfinished ...>
[pid  5146] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5148] setpgid(0, 0 <unfinished ...>
[pid  5147] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5146] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5148] <... setpgid resumed>)      = 0
[pid  5147] <... ioctl resumed>)        = 0
[pid  5146] close(6)                    = 0
[pid  5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5146] close(5 <unfinished ...>
[pid  5147] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5143] <... write resumed>)        = 1
[pid  5147] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5143] exit_group(0 <unfinished ...>
[pid  5147] close(6 <unfinished ...>
[pid  5143] <... exit_group resumed>)   = ?
[pid  5143] +++ exited with 0 +++
[pid  5147] <... close resumed>)        = 0
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5147] close(5 <unfinished ...>
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5148] <... openat resumed>)       = 3
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached
 <unfinished ...>
[pid  5148] write(3, "1000", 4 <unfinished ...>
[pid  5147] <... close resumed>)        = 0
[pid  5145] <... close resumed>)        = 0
[pid  5149] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5148] <... write resumed>)        = 4
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5149
[pid  5149] <... set_robust_list resumed>) = 0
[pid  5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5149] setpgid(0, 0 <unfinished ...>
[pid  5142] <... close resumed>)        = 0
[pid  5149] <... setpgid resumed>)      = 0
[pid  5148] close(3 <unfinished ...>
[pid  5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5149] write(3, "1000", 4)         = 4
[pid  5142] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5149] close(3 <unfinished ...>
[pid  5142] <... openat resumed>)       = 5
[pid  5149] <... close resumed>)        = 0
[pid  5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5142] write(5, "t", 1 <unfinished ...>
[pid  5148] <... close resumed>)        = 0
[pid  5149] <... openat resumed>)       = 4
[pid  5149] sendfile(4, 3, [122] <unfinished ...>
[pid  5145] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5148] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5147] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5142] <... write resumed>)        = 1
[pid  5146] <... close resumed>)        = 0
[pid  5142] exit_group(0 <unfinished ...>
[pid  5145] <... openat resumed>)       = 5
[pid  5145] write(5, "t", 1 <unfinished ...>
[pid  5148] <... openat resumed>)       = 3
[pid  5147] <... openat resumed>)       = 5
[pid  5146] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5148] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5147] write(5, "t", 1 <unfinished ...>
[pid  5142] <... exit_group resumed>)   = ?
[pid  5148] <... openat resumed>)       = 4
[pid  5142] +++ exited with 0 +++
[pid  5148] sendfile(4, 3, [122] <unfinished ...>
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
[pid  5146] <... openat resumed>)       = 5
[pid  5146] write(5, "t", 1 <unfinished ...>
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5062] close(3)                    = 0
[pid  5147] <... write resumed>)        = 1
[pid  5147] exit_group(0)               = ?
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5147] +++ exited with 0 +++
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5150
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5146] <... write resumed>)        = 1
[pid  5146] exit_group(0)               = ?
./strace-static-x86_64: Process 5150 attached
[pid  5145] <... write resumed>)        = 1
[pid  5150] set_robust_list(0x555555646660, 24) = 0
[pid  5145] exit_group(0 <unfinished ...>
[pid  5150] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5146] +++ exited with 0 +++
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5150] <... prctl resumed>)        = 0
[pid  5145] <... exit_group resumed>)   = ?
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} ---
[pid  5150] setpgid(0, 0 <unfinished ...>
[pid  5060] <... openat resumed>)       = 3
[pid  5150] <... setpgid resumed>)      = 0
[pid  5145] +++ exited with 0 +++
[pid  5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5150] <... openat resumed>)       = 3
[pid  5150] write(3, "1000", 4 <unfinished ...>
[pid  5060] <... ioctl resumed>)        = 0
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5060] close(3 <unfinished ...>
[pid  5059] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5150] <... write resumed>)        = 4
[pid  5060] <... close resumed>)        = 0
[pid  5150] close(3 <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] <... restart_syscall resumed>) = 0
[pid  5150] <... close resumed>)        = 0
[pid  5150] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
./strace-static-x86_64: Process 5151 attached
[pid  5150] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5151
[pid  5151] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5150] <... openat resumed>)       = 4
[pid  5150] sendfile(4, 3, [122] <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5151] <... set_robust_list resumed>) = 0
[pid  5068] <... ioctl resumed>)        = 0
[pid  5059] <... openat resumed>)       = 3
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5151] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5068] close(3 <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
[pid  5151] <... prctl resumed>)        = 0
[pid  5068] <... close resumed>)        = 0
[pid  5059] close(3)                    = 0
[pid  5151] setpgid(0, 0 <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5151] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 5153 attached
[pid  5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5153] set_robust_list(0x555555646660, 24./strace-static-x86_64: Process 5152 attached
 <unfinished ...>
[pid  5151] <... openat resumed>)       = 3
[pid  5153] <... set_robust_list resumed>) = 0
[pid  5151] write(3, "1000", 4 <unfinished ...>
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5153
[pid  5152] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5151] <... write resumed>)        = 4
[pid  5153] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5152] <... set_robust_list resumed>) = 0
[pid  5151] close(3 <unfinished ...>
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5152
[pid  5153] <... prctl resumed>)        = 0
[pid  5151] <... close resumed>)        = 0
[pid  5151] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5153] setpgid(0, 0)               = 0
[pid  5151] <... openat resumed>)       = 3
[pid  5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5153] write(3, "1000", 4)         = 4
[pid  5153] close(3 <unfinished ...>
[pid  5152] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5153] <... close resumed>)        = 0
[pid  5152] <... prctl resumed>)        = 0
[pid  5153] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5152] setpgid(0, 0 <unfinished ...>
[pid  5153] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5152] <... setpgid resumed>)      = 0
[pid  5151] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5153] <... openat resumed>)       = 4
[pid  5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5151] <... openat resumed>)       = 4
[pid  5153] sendfile(4, 3, [122] <unfinished ...>
[pid  5151] sendfile(4, 3, [122] <unfinished ...>
[pid  5152] <... openat resumed>)       = 3
[pid  5152] write(3, "1000", 4)         = 4
[pid  5152] close(3)                    = 0
[pid  5152] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5152] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   74.128711][ T5149] syz-executor101 (5149): drop_caches: 3
[   74.138839][ T5148] syz-executor101 (5148): drop_caches: 3
[   74.288102][ T5150] syz-executor101 (5150): drop_caches: 3
[   74.342358][ T5152] syz-executor101 (5152): drop_caches: 3
[   74.343953][ T5153] syz-executor101 (5153): drop_caches: 3
[   74.364199][ T5151] syz-executor101 (5151): drop_caches: 3
[   74.390049][ T5149] syz-executor101 (5149): drop_caches: 3
[pid  5152] sendfile(4, 3, [122] <unfinished ...>
[pid  5148] <... sendfile resumed> => [693], 571) = 571
[pid  5149] <... sendfile resumed> => [693], 571) = 571
[pid  5149] memfd_create("syzkaller", 0) = 5
[pid  5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5148] memfd_create("syzkaller", 0) = 5
[pid  5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   74.424413][ T5148] syz-executor101 (5148): drop_caches: 3
[pid  5148] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5149] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5148] <... write resumed>)        = 2097152
[pid  5153] <... sendfile resumed> => [693], 571) = 571
[pid  5150] <... sendfile resumed> => [693], 571) = 571
[pid  5148] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5153] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5150] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5148] <... munmap resumed>)       = 0
[pid  5149] <... write resumed>)        = 2097152
[pid  5149] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5150] <... memfd_create resumed>) = 5
[pid  5148] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5148] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5148] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5149] <... munmap resumed>)       = 0
[pid  5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5148] <... ioctl resumed>)        = 0
[   74.517514][ T5150] syz-executor101 (5150): drop_caches: 3
[   74.525077][ T5153] syz-executor101 (5153): drop_caches: 3
[   74.534857][ T5152] syz-executor101 (5152): drop_caches: 3
[pid  5153] <... memfd_create resumed>) = 5
[pid  5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5152] <... sendfile resumed> => [693], 571) = 571
[pid  5150] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5149] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5153] <... mmap resumed>)         = 0x7f082840d000
[pid  5152] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5149] <... openat resumed>)       = 6
[pid  5148] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5149] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5148] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5149] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5148] close(6)                    = 0
[pid  5148] close(5 <unfinished ...>
[pid  5152] <... memfd_create resumed>) = 5
[pid  5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5149] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5152] <... mmap resumed>)         = 0x7f082840d000
[pid  5149] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5149] close(6)                    = 0
[pid  5149] close(5 <unfinished ...>
[pid  5148] <... close resumed>)        = 0
[pid  5148] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5148] write(5, "t", 1 <unfinished ...>
[pid  5151] <... sendfile resumed> => [693], 571) = 571
[pid  5152] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5148] <... write resumed>)        = 1
[pid  5148] exit_group(0)               = ?
[   74.558648][ T5151] syz-executor101 (5151): drop_caches: 3
[pid  5151] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5148] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5151] <... memfd_create resumed>) = 5
[pid  5149] <... close resumed>)        = 0
[pid  5065] <... openat resumed>)       = 3
[pid  5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5149] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5151] <... mmap resumed>)         = 0x7f082840d000
[pid  5149] <... openat resumed>)       = 5
[pid  5149] write(5, "t", 1 <unfinished ...>
[pid  5065] <... ioctl resumed>)        = 0
[pid  5065] close(3)                    = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5149] <... write resumed>)        = 1
[pid  5149] exit_group(0)               = ?
[pid  5149] +++ exited with 0 +++
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5154
./strace-static-x86_64: Process 5154 attached
[pid  5154] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5150] <... write resumed>)        = 2097152
[pid  5154] <... set_robust_list resumed>) = 0
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5154] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5153] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5152] <... write resumed>)        = 2097152
[pid  5150] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5152] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5154] <... prctl resumed>)        = 0
[pid  5152] <... munmap resumed>)       = 0
[pid  5154] setpgid(0, 0 <unfinished ...>
[pid  5152] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5061] <... ioctl resumed>)        = 0
[pid  5154] <... setpgid resumed>)      = 0
[pid  5152] <... openat resumed>)       = 6
[pid  5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5152] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5154] <... openat resumed>)       = 3
[pid  5152] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5154] write(3, "1000", 4 <unfinished ...>
[pid  5152] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5154] <... write resumed>)        = 4
[pid  5152] <... ioctl resumed>)        = 0
[pid  5154] close(3)                    = 0
[pid  5154] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5152] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5152] close(6 <unfinished ...>
[pid  5154] <... openat resumed>)       = 3
[pid  5152] <... close resumed>)        = 0
[pid  5152] close(5 <unfinished ...>
[pid  5151] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5155
./strace-static-x86_64: Process 5155 attached
[pid  5155] set_robust_list(0x555555646660, 24) = 0
[pid  5155] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5154] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5150] <... munmap resumed>)       = 0
[pid  5154] <... openat resumed>)       = 4
[pid  5150] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5155] <... prctl resumed>)        = 0
[pid  5155] setpgid(0, 0)               = 0
[pid  5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5154] sendfile(4, 3, [122] <unfinished ...>
[pid  5150] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5155] write(3, "1000", 4)         = 4
[pid  5155] close(3)                    = 0
[pid  5155] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5155] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5150] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5155] sendfile(4, 3, [122] <unfinished ...>
[pid  5150] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5152] <... close resumed>)        = 0
[pid  5150] <... ioctl resumed>)        = 0
[pid  5152] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5152] write(5, "t", 1 <unfinished ...>
[pid  5153] <... write resumed>)        = 2097152
[pid  5150] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5152] <... write resumed>)        = 1
[pid  5152] exit_group(0)               = ?
[pid  5152] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5068] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5068] close(3)                    = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5156
./strace-static-x86_64: Process 5156 attached
[pid  5156] set_robust_list(0x555555646660, 24) = 0
[pid  5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5150] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5156] setpgid(0, 0)               = 0
[pid  5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5156] write(3, "1000", 4)         = 4
[pid  5156] close(3)                    = 0
[pid  5156] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5156] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5156] sendfile(4, 3, [122] <unfinished ...>
[pid  5153] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5150] close(6)                    = 0
[pid  5150] close(5 <unfinished ...>
[pid  5151] <... write resumed>)        = 2097152
[pid  5151] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5153] <... munmap resumed>)       = 0
[pid  5153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5153] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5151] <... munmap resumed>)       = 0
[pid  5150] <... close resumed>)        = 0
[pid  5153] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5150] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5153] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5151] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5150] <... openat resumed>)       = 5
[pid  5150] write(5, "t", 1 <unfinished ...>
[pid  5151] <... openat resumed>)       = 6
[pid  5151] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5151] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5153] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5153] close(6 <unfinished ...>
[pid  5151] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5153] <... close resumed>)        = 0
[pid  5151] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5150] <... write resumed>)        = 1
[pid  5153] close(5 <unfinished ...>
[pid  5151] close(6)                    = 0
[pid  5150] exit_group(0 <unfinished ...>
[pid  5151] close(5 <unfinished ...>
[pid  5153] <... close resumed>)        = 0
[pid  5151] <... close resumed>)        = 0
[pid  5150] <... exit_group resumed>)   = ?
[pid  5150] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} ---
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5062] close(3)                    = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached
 <unfinished ...>
[pid  5151] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5157
[pid  5157] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5151] <... openat resumed>)       = 5
[pid  5157] <... set_robust_list resumed>) = 0
[pid  5151] write(5, "t", 1 <unfinished ...>
[pid  5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5157] setpgid(0, 0)               = 0
[pid  5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5157] write(3, "1000", 4)         = 4
[pid  5157] close(3)                    = 0
[pid  5157] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5157] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5157] sendfile(4, 3, [122] <unfinished ...>
[pid  5151] <... write resumed>)        = 1
[pid  5151] exit_group(0)               = ?
[pid  5151] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[   74.829925][ T5154] syz-executor101 (5154): drop_caches: 3
[pid  5153] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5153] <... openat resumed>)       = 5
[pid  5060] <... ioctl resumed>)        = 0
[pid  5153] write(5, "t", 1 <unfinished ...>
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5158 attached
, child_tidptr=0x555555646650) = 5158
[pid  5158] set_robust_list(0x555555646660, 24) = 0
[pid  5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5158] setpgid(0, 0)               = 0
[pid  5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5158] write(3, "1000", 4)         = 4
[pid  5158] close(3)                    = 0
[pid  5158] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5158] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   74.896608][ T5155] syz-executor101 (5155): drop_caches: 3
[pid  5158] sendfile(4, 3, [122] <unfinished ...>
[pid  5153] <... write resumed>)        = 1
[pid  5153] exit_group(0)               = ?
[pid  5153] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5059] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5159 attached
 <unfinished ...>
[pid  5159] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5159
[pid  5159] <... set_robust_list resumed>) = 0
[pid  5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5159] setpgid(0, 0)               = 0
[pid  5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[   74.944770][ T5156] syz-executor101 (5156): drop_caches: 3
[pid  5159] write(3, "1000", 4)         = 4
[pid  5159] close(3)                    = 0
[pid  5159] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5159] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   75.038283][ T5157] syz-executor101 (5157): drop_caches: 3
[   75.070356][ T5158] syz-executor101 (5158): drop_caches: 3
[   75.101237][ T5155] syz-executor101 (5155): drop_caches: 3
[   75.136341][ T5156] syz-executor101 (5156): drop_caches: 3
[pid  5159] sendfile(4, 3, [122] <unfinished ...>
[pid  5156] <... sendfile resumed> => [693], 571) = 571
[pid  5156] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5155] <... sendfile resumed> => [693], 571) = 571
[pid  5154] <... sendfile resumed> => [693], 571) = 571
[pid  5155] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5154] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5155] <... memfd_create resumed>) = 5
[pid  5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5154] <... memfd_create resumed>) = 5
[pid  5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5155] <... mmap resumed>)         = 0x7f082840d000
[pid  5156] <... memfd_create resumed>) = 5
[pid  5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   75.164723][ T5154] syz-executor101 (5154): drop_caches: 3
[pid  5155] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5156] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5155] <... write resumed>)        = 2097152
[pid  5158] <... sendfile resumed> => [693], 571) = 571
[pid  5155] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5154] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5156] <... write resumed>)        = 2097152
[pid  5155] <... munmap resumed>)       = 0
[pid  5155] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5155] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5158] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5155] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5158] <... memfd_create resumed>) = 5
[pid  5155] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5156] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5155] <... ioctl resumed>)        = 0
[pid  5158] <... mmap resumed>)         = 0x7f082840d000
[   75.230433][ T5159] syz-executor101 (5159): drop_caches: 3
[   75.264267][ T5158] syz-executor101 (5158): drop_caches: 3
[pid  5155] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5155] close(6)                    = 0
[pid  5156] <... munmap resumed>)       = 0
[pid  5157] <... sendfile resumed> => [693], 571) = 571
[pid  5155] close(5 <unfinished ...>
[pid  5154] <... write resumed>)        = 2097152
[pid  5156] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5154] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5157] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5156] <... openat resumed>)       = 6
[pid  5156] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5156] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5157] <... memfd_create resumed>) = 5
[pid  5154] <... munmap resumed>)       = 0
[pid  5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5154] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5157] <... mmap resumed>)         = 0x7f082840d000
[pid  5154] <... openat resumed>)       = 6
[pid  5155] <... close resumed>)        = 0
[pid  5154] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5159] <... sendfile resumed> => [693], 571) = 571
[pid  5154] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5156] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5154] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5156] close(6 <unfinished ...>
[pid  5154] <... ioctl resumed>)        = 0
[pid  5156] <... close resumed>)        = 0
[pid  5159] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5156] close(5 <unfinished ...>
[pid  5155] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5154] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5154] close(6)                    = 0
[pid  5156] <... close resumed>)        = 0
[pid  5155] <... openat resumed>)       = 5
[pid  5154] close(5 <unfinished ...>
[pid  5159] <... memfd_create resumed>) = 5
[pid  5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5158] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5155] write(5, "t", 1 <unfinished ...>
[pid  5154] <... close resumed>)        = 0
[   75.310992][ T5157] syz-executor101 (5157): drop_caches: 3
[   75.318735][ T5159] syz-executor101 (5159): drop_caches: 3
[pid  5157] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5156] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5156] write(5, "t", 1 <unfinished ...>
[pid  5154] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5156] <... write resumed>)        = 1
[pid  5155] <... write resumed>)        = 1
[pid  5155] exit_group(0)               = ?
[pid  5156] exit_group(0 <unfinished ...>
[pid  5154] <... openat resumed>)       = 5
[pid  5156] <... exit_group resumed>)   = ?
[pid  5154] write(5, "t", 1 <unfinished ...>
[pid  5156] +++ exited with 0 +++
[pid  5155] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5061] <... openat resumed>)       = 3
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3 <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
[pid  5061] <... close resumed>)        = 0
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached
 <unfinished ...>
[pid  5154] <... write resumed>)        = 1
[pid  5068] <... ioctl resumed>)        = 0
[pid  5160] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5154] exit_group(0 <unfinished ...>
[pid  5068] close(3 <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5160
[pid  5160] <... set_robust_list resumed>) = 0
[pid  5159] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5154] <... exit_group resumed>)   = ?
[pid  5068] <... close resumed>)        = 0
[pid  5160] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5154] +++ exited with 0 +++
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5160] <... prctl resumed>)        = 0
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5160] setpgid(0, 0)               = 0
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5161 attached
 <unfinished ...>
[pid  5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5157] <... write resumed>)        = 2097152
[pid  5065] <... openat resumed>)       = 3
[pid  5160] <... openat resumed>)       = 3
[pid  5160] write(3, "1000", 4)         = 4
[pid  5160] close(3)                    = 0
[pid  5160] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5160] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5160] sendfile(4, 3, [122] <unfinished ...>
[pid  5161] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5065] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5161] <... set_robust_list resumed>) = 0
[pid  5065] <... ioctl resumed>)        = 0
[pid  5161] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5161
[pid  5065] close(3 <unfinished ...>
[pid  5161] <... prctl resumed>)        = 0
[pid  5161] setpgid(0, 0)               = 0
[pid  5065] <... close resumed>)        = 0
[pid  5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5161] <... openat resumed>)       = 3
[pid  5158] <... write resumed>)        = 2097152
[pid  5161] write(3, "1000", 4 <unfinished ...>
[pid  5158] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5161] <... write resumed>)        = 4
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5162
[pid  5161] close(3./strace-static-x86_64: Process 5162 attached
 <unfinished ...>
[pid  5162] set_robust_list(0x555555646660, 24) = 0
[pid  5162] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5157] munmap(0x7f082840d000, 138412032) = 0
[pid  5162] <... prctl resumed>)        = 0
[pid  5161] <... close resumed>)        = 0
[pid  5159] <... write resumed>)        = 2097152
[pid  5158] <... munmap resumed>)       = 0
[pid  5162] setpgid(0, 0 <unfinished ...>
[pid  5159] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5157] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5161] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5158] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5162] <... setpgid resumed>)      = 0
[pid  5161] <... openat resumed>)       = 3
[pid  5159] <... munmap resumed>)       = 0
[pid  5158] <... openat resumed>)       = 6
[pid  5157] <... openat resumed>)       = 6
[pid  5158] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5161] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5158] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5157] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5158] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5162] <... openat resumed>)       = 3
[pid  5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5158] <... ioctl resumed>)        = 0
[pid  5157] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] write(3, "1000", 4 <unfinished ...>
[pid  5159] <... openat resumed>)       = 6
[pid  5157] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5162] <... write resumed>)        = 4
[pid  5159] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5157] <... ioctl resumed>)        = 0
[pid  5162] close(3 <unfinished ...>
[pid  5161] <... openat resumed>)       = 4
[pid  5159] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] <... close resumed>)        = 0
[pid  5159] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5162] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5161] sendfile(4, 3, [122] <unfinished ...>
[pid  5159] <... ioctl resumed>)        = 0
[pid  5162] <... openat resumed>)       = 3
[pid  5158] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5162] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5158] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] <... openat resumed>)       = 4
[pid  5157] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5162] sendfile(4, 3, [122] <unfinished ...>
[pid  5157] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5157] close(6)                    = 0
[pid  5159] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5157] close(5 <unfinished ...>
[pid  5159] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5157] <... close resumed>)        = 0
[pid  5158] close(6 <unfinished ...>
[pid  5159] close(6 <unfinished ...>
[pid  5158] <... close resumed>)        = 0
[pid  5158] close(5 <unfinished ...>
[pid  5159] <... close resumed>)        = 0
[pid  5158] <... close resumed>)        = 0
[pid  5159] close(5)                    = 0
[pid  5157] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5157] write(5, "t", 1 <unfinished ...>
[pid  5159] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5158] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5157] <... write resumed>)        = 1
[pid  5159] <... openat resumed>)       = 5
[pid  5157] exit_group(0 <unfinished ...>
[pid  5159] write(5, "t", 1 <unfinished ...>
[pid  5157] <... exit_group resumed>)   = ?
[pid  5158] <... openat resumed>)       = 5
[pid  5157] +++ exited with 0 +++
[pid  5158] write(5, "t", 1 <unfinished ...>
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5062] close(3)                    = 0
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5159] <... write resumed>)        = 1
[pid  5159] exit_group(0)               = ?
[pid  5159] +++ exited with 0 +++
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5163
./strace-static-x86_64: Process 5163 attached
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} ---
[pid  5163] set_robust_list(0x555555646660, 24) = 0
[pid  5163] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5163] <... prctl resumed>)        = 0
[pid  5158] <... write resumed>)        = 1
[pid  5163] setpgid(0, 0 <unfinished ...>
[pid  5158] exit_group(0 <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5163] <... setpgid resumed>)      = 0
[pid  5158] <... exit_group resumed>)   = ?
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5164
[pid  5163] write(3, "1000", 4)         = 4
[pid  5163] close(3 <unfinished ...>
[pid  5158] +++ exited with 0 +++
[pid  5163] <... close resumed>)        = 0
[pid  5163] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
[pid  5163] <... openat resumed>)       = 3
[pid  5060] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5163] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5060] <... restart_syscall resumed>) = 0
[pid  5163] sendfile(4, 3, [122] <unfinished ...>
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 5164 attached
[pid  5060] close(3 <unfinished ...>
[pid  5164] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5060] <... close resumed>)        = 0
[pid  5164] <... set_robust_list resumed>) = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5164] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5165 attached
) = 0
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5165
[pid  5164] setpgid(0, 0)               = 0
[pid  5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5165] set_robust_list(0x555555646660, 24) = 0
[pid  5165] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5164] write(3, "1000", 4)         = 4
[pid  5164] close(3)                    = 0
[pid  5164] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5164] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5164] sendfile(4, 3, [122] <unfinished ...>
[pid  5165] <... prctl resumed>)        = 0
[pid  5165] setpgid(0, 0)               = 0
[pid  5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5165] write(3, "1000", 4)         = 4
[pid  5165] close(3)                    = 0
[pid  5165] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5165] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   75.615420][ T5160] syz-executor101 (5160): drop_caches: 3
[   75.678801][ T5162] syz-executor101 (5162): drop_caches: 3
[   75.694383][ T5161] syz-executor101 (5161): drop_caches: 3
[   75.730804][ T5163] syz-executor101 (5163): drop_caches: 3
[   75.777834][ T5165] syz-executor101 (5165): drop_caches: 3
[pid  5165] sendfile(4, 3, [122] <unfinished ...>
[pid  5160] <... sendfile resumed> => [693], 571) = 571
[   75.828765][ T5164] syz-executor101 (5164): drop_caches: 3
[   75.864886][ T5160] syz-executor101 (5160): drop_caches: 3
[pid  5162] <... sendfile resumed> => [693], 571) = 571
[pid  5161] <... sendfile resumed> => [693], 571) = 571
[pid  5160] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5162] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5161] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5160] <... memfd_create resumed>) = 5
[pid  5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5163] <... sendfile resumed> => [693], 571) = 571
[pid  5162] <... memfd_create resumed>) = 5
[pid  5161] <... memfd_create resumed>) = 5
[pid  5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5163] memfd_create("syzkaller", 0) = 5
[pid  5165] <... sendfile resumed> => [693], 571) = 571
[pid  5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5162] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5160] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5163] <... mmap resumed>)         = 0x7f082840d000
[pid  5165] memfd_create("syzkaller", 0 <unfinished ...>
[   75.895873][ T5161] syz-executor101 (5161): drop_caches: 3
[   75.903469][ T5162] syz-executor101 (5162): drop_caches: 3
[   75.913208][ T5163] syz-executor101 (5163): drop_caches: 3
[   75.920609][ T5165] syz-executor101 (5165): drop_caches: 3
[pid  5161] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5165] <... memfd_create resumed>) = 5
[pid  5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5164] <... sendfile resumed> => [693], 571) = 571
[pid  5163] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5161] <... write resumed>)        = 2097152
[pid  5165] <... mmap resumed>)         = 0x7f082840d000
[pid  5162] <... write resumed>)        = 2097152
[pid  5164] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5163] <... write resumed>)        = 2097152
[pid  5161] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5160] <... write resumed>)        = 2097152
[pid  5164] <... memfd_create resumed>) = 5
[pid  5163] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5162] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5161] <... munmap resumed>)       = 0
[pid  5160] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5165] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5163] <... munmap resumed>)       = 0
[pid  5164] <... mmap resumed>)         = 0x7f082840d000
[pid  5162] <... munmap resumed>)       = 0
[pid  5161] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5160] <... munmap resumed>)       = 0
[pid  5162] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5161] <... openat resumed>)       = 6
[pid  5162] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5161] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5162] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5161] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5161] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5162] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5161] <... ioctl resumed>)        = 0
[pid  5162] <... ioctl resumed>)        = 0
[pid  5160] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5160] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5160] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5163] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5162] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5161] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5160] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5161] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5160] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5163] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5162] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5161] close(6 <unfinished ...>
[pid  5160] close(6 <unfinished ...>
[pid  5163] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] close(6 <unfinished ...>
[pid  5161] <... close resumed>)        = 0
[pid  5160] <... close resumed>)        = 0
[pid  5163] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5161] close(5 <unfinished ...>
[pid  5160] close(5 <unfinished ...>
[pid  5162] <... close resumed>)        = 0
[   75.977909][ T5164] syz-executor101 (5164): drop_caches: 3
[pid  5162] close(5 <unfinished ...>
[pid  5163] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5163] close(6)                    = 0
[pid  5163] close(5 <unfinished ...>
[pid  5165] <... write resumed>)        = 2097152
[pid  5160] <... close resumed>)        = 0
[pid  5165] munmap(0x7f082840d000, 138412032) = 0
[pid  5163] <... close resumed>)        = 0
[pid  5162] <... close resumed>)        = 0
[pid  5165] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5165] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5165] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5162] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5165] <... ioctl resumed>)        = 0
[pid  5160] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5164] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5161] <... close resumed>)        = 0
[pid  5165] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5162] <... openat resumed>)       = 5
[pid  5161] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5160] <... openat resumed>)       = 5
[pid  5165] close(6 <unfinished ...>
[pid  5163] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5162] write(5, "t", 1 <unfinished ...>
[pid  5161] <... openat resumed>)       = 5
[pid  5160] write(5, "t", 1 <unfinished ...>
[pid  5165] <... close resumed>)        = 0
[pid  5163] <... openat resumed>)       = 5
[pid  5165] close(5 <unfinished ...>
[pid  5163] write(5, "t", 1 <unfinished ...>
[pid  5161] write(5, "t", 1 <unfinished ...>
[pid  5162] <... write resumed>)        = 1
[pid  5160] <... write resumed>)        = 1
[pid  5162] exit_group(0)               = ?
[pid  5160] exit_group(0 <unfinished ...>
[pid  5162] +++ exited with 0 +++
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5160] <... exit_group resumed>)   = ?
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5065] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5065] close(3)                    = 0
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached
 <unfinished ...>
[pid  5163] <... write resumed>)        = 1
[pid  5161] <... write resumed>)        = 1
[pid  5160] +++ exited with 0 +++
[pid  5166] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5163] exit_group(0 <unfinished ...>
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5166] <... set_robust_list resumed>) = 0
[pid  5163] <... exit_group resumed>)   = ?
[pid  5161] exit_group(0 <unfinished ...>
[pid  5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5161] <... exit_group resumed>)   = ?
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5166
[pid  5166] setpgid(0, 0 <unfinished ...>
[pid  5164] <... write resumed>)        = 2097152
[pid  5163] +++ exited with 0 +++
[pid  5161] +++ exited with 0 +++
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5166] <... setpgid resumed>)      = 0
[pid  5164] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5061] <... openat resumed>)       = 3
[pid  5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} ---
[pid  5061] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5166] <... openat resumed>)       = 3
[pid  5164] <... munmap resumed>)       = 0
[pid  5062] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5061] <... ioctl resumed>)        = 0
[pid  5166] write(3, "1000", 4 <unfinished ...>
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5062] <... restart_syscall resumed>) = 0
[pid  5166] <... write resumed>)        = 4
[pid  5166] close(3 <unfinished ...>
[pid  5068] <... openat resumed>)       = 3
[pid  5166] <... close resumed>)        = 0
[pid  5068] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5166] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5061] close(3 <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5166] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5061] <... close resumed>)        = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5166] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5165] <... close resumed>)        = 0
[pid  5068] <... ioctl resumed>)        = 0
[pid  5062] <... ioctl resumed>)        = 0
[pid  5062] close(3)                    = 0
[pid  5166] <... openat resumed>)       = 4
[pid  5068] close(3 <unfinished ...>
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5166] sendfile(4, 3, [122] <unfinished ...>
[pid  5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5167
./strace-static-x86_64: Process 5168 attached
[pid  5164] <... openat resumed>)       = 6
[pid  5168] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5168
[pid  5168] <... set_robust_list resumed>) = 0
[pid  5164] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5165] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5068] <... close resumed>)        = 0
./strace-static-x86_64: Process 5167 attached
[pid  5168] <... prctl resumed>)        = 0
[pid  5165] <... openat resumed>)       = 5
[pid  5164] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5168] setpgid(0, 0 <unfinished ...>
[pid  5167] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5164] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5167] <... set_robust_list resumed>) = 0
[pid  5168] <... setpgid resumed>)      = 0
[pid  5164] <... ioctl resumed>)        = 0
[pid  5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5167] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5168] <... openat resumed>)       = 3
[pid  5167] <... prctl resumed>)        = 0
[pid  5167] setpgid(0, 0 <unfinished ...>
[pid  5168] write(3, "1000", 4)         = 4
[pid  5164] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] close(3 <unfinished ...>
[pid  5164] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5167] <... setpgid resumed>)      = 0
[pid  5168] <... close resumed>)        = 0
[pid  5168] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5164] close(6)                    = 0
[pid  5168] <... openat resumed>)       = 3
[pid  5164] close(5./strace-static-x86_64: Process 5169 attached
 <unfinished ...>
[pid  5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5165] write(5, "t", 1 <unfinished ...>
[pid  5168] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5168] sendfile(4, 3, [122] <unfinished ...>
[pid  5169] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5167] <... openat resumed>)       = 3
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5169
[pid  5167] write(3, "1000", 4)         = 4
[pid  5167] close(3)                    = 0
[pid  5169] <... set_robust_list resumed>) = 0
[pid  5169] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5167] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5169] <... prctl resumed>)        = 0
[pid  5169] setpgid(0, 0 <unfinished ...>
[pid  5167] <... openat resumed>)       = 3
[pid  5169] <... setpgid resumed>)      = 0
[pid  5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5167] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5169] <... openat resumed>)       = 3
[pid  5167] <... openat resumed>)       = 4
[pid  5169] write(3, "1000", 4 <unfinished ...>
[pid  5167] sendfile(4, 3, [122] <unfinished ...>
[pid  5165] <... write resumed>)        = 1
[pid  5169] <... write resumed>)        = 4
[pid  5165] exit_group(0 <unfinished ...>
[pid  5169] close(3)                    = 0
[pid  5169] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5165] <... exit_group resumed>)   = ?
[pid  5169] <... openat resumed>)       = 3
[pid  5169] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5164] <... close resumed>)        = 0
[pid  5169] sendfile(4, 3, [122] <unfinished ...>
[pid  5165] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
[pid  5164] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5170 attached
 <unfinished ...>
[pid  5170] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5170
[pid  5170] <... set_robust_list resumed>) = 0
[pid  5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5170] setpgid(0, 0)               = 0
[pid  5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5170] write(3, "1000", 4)         = 4
[pid  5170] close(3)                    = 0
[pid  5164] write(5, "t", 1 <unfinished ...>
[pid  5170] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5170] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5170] sendfile(4, 3, [122] <unfinished ...>
[pid  5164] <... write resumed>)        = 1
[pid  5164] exit_group(0)               = ?
[pid  5164] +++ exited with 0 +++
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5059] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5059] close(3)                    = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555646650) = 5171
./strace-static-x86_64: Process 5171 attached
[pid  5171] set_robust_list(0x555555646660, 24) = 0
[pid  5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5171] setpgid(0, 0)               = 0
[pid  5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5171] write(3, "1000", 4)         = 4
[pid  5171] close(3)                    = 0
[pid  5171] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5171] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   76.290271][ T5166] syz-executor101 (5166): drop_caches: 3
[   76.309518][ T5168] syz-executor101 (5168): drop_caches: 3
[   76.329378][ T5170] syz-executor101 (5170): drop_caches: 3
[   76.347887][ T5167] syz-executor101 (5167): drop_caches: 3
[   76.354676][ T5169] syz-executor101 (5169): drop_caches: 3
[   76.357785][ T5171] syz-executor101 (5171): drop_caches: 3
[pid  5171] sendfile(4, 3, [122] <unfinished ...>
[pid  5166] <... sendfile resumed> => [693], 571) = 571
[pid  5166] memfd_create("syzkaller", 0) = 5
[pid  5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   76.586823][ T5166] syz-executor101 (5166): drop_caches: 3
[pid  5171] <... sendfile resumed> => [693], 571) = 571
[   76.647880][ T5171] syz-executor101 (5171): drop_caches: 3
[   76.657309][ T5168] syz-executor101 (5168): drop_caches: 3
[   76.678154][ T5169] syz-executor101 (5169): drop_caches: 3
[   76.692251][ T5170] syz-executor101 (5170): drop_caches: 3
[pid  5171] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5170] <... sendfile resumed> => [693], 571) = 571
[pid  5169] <... sendfile resumed> => [693], 571) = 571
[pid  5168] <... sendfile resumed> => [693], 571) = 571
[pid  5166] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5171] <... memfd_create resumed>) = 5
[pid  5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5167] <... sendfile resumed> => [693], 571) = 571
[pid  5170] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5169] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5167] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5168] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5170] <... memfd_create resumed>) = 5
[pid  5169] <... memfd_create resumed>) = 5
[pid  5168] <... memfd_create resumed>) = 5
[pid  5167] <... memfd_create resumed>) = 5
[pid  5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5169] <... mmap resumed>)         = 0x7f082840d000
[pid  5168] <... mmap resumed>)         = 0x7f082840d000
[pid  5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5170] <... mmap resumed>)         = 0x7f082840d000
[pid  5167] <... mmap resumed>)         = 0x7f082840d000
[pid  5166] <... write resumed>)        = 2097152
[pid  5166] munmap(0x7f082840d000, 138412032) = 0
[pid  5166] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5171] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5167] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[   76.697469][ T5167] syz-executor101 (5167): drop_caches: 3
[pid  5166] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5169] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5166] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5166] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5168] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5166] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5166] close(6 <unfinished ...>
[pid  5167] <... write resumed>)        = 2097152
[pid  5166] <... close resumed>)        = 0
[pid  5171] <... write resumed>)        = 2097152
[pid  5170] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5168] <... write resumed>)        = 2097152
[pid  5167] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5166] close(5 <unfinished ...>
[pid  5171] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5168] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5167] <... munmap resumed>)       = 0
[pid  5166] <... close resumed>)        = 0
[pid  5166] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5171] <... munmap resumed>)       = 0
[pid  5169] <... write resumed>)        = 2097152
[pid  5168] <... munmap resumed>)       = 0
[pid  5167] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5166] <... openat resumed>)       = 5
[pid  5167] <... openat resumed>)       = 6
[pid  5167] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5169] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5167] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5166] write(5, "t", 1 <unfinished ...>
[pid  5167] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5168] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5171] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5169] <... munmap resumed>)       = 0
[pid  5168] <... openat resumed>)       = 6
[pid  5171] <... openat resumed>)       = 6
[pid  5170] <... write resumed>)        = 2097152
[pid  5168] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5167] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5170] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5169] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5167] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5166] <... write resumed>)        = 1
[pid  5171] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5167] close(6 <unfinished ...>
[pid  5166] exit_group(0 <unfinished ...>
[pid  5171] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5167] <... close resumed>)        = 0
[pid  5171] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5168] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5167] close(5 <unfinished ...>
[pid  5171] <... ioctl resumed>)        = 0
[pid  5170] <... munmap resumed>)       = 0
[pid  5166] <... exit_group resumed>)   = ?
[pid  5169] <... openat resumed>)       = 6
[pid  5169] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] <... ioctl resumed>)        = 0
[pid  5169] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5168] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5171] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5170] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5171] close(6 <unfinished ...>
[pid  5170] <... openat resumed>)       = 6
[pid  5169] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5168] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5170] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5166] +++ exited with 0 +++
[pid  5171] <... close resumed>)        = 0
[pid  5170] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5169] <... ioctl resumed>)        = 0
[pid  5168] close(6 <unfinished ...>
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5171] close(5 <unfinished ...>
[pid  5170] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5168] <... close resumed>)        = 0
[pid  5065] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5170] <... ioctl resumed>)        = 0
[pid  5168] close(5 <unfinished ...>
[pid  5065] <... restart_syscall resumed>) = 0
[pid  5169] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] <... close resumed>)        = 0
[pid  5065] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5065] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5065] close(3)                    = 0
[pid  5169] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5065] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5172 attached
 <unfinished ...>
[pid  5167] <... close resumed>)        = 0
[pid  5172] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5170] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5172] <... set_robust_list resumed>) = 0
[pid  5169] close(6 <unfinished ...>
[pid  5170] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5172] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5170] close(6 <unfinished ...>
[pid  5169] <... close resumed>)        = 0
[pid  5170] <... close resumed>)        = 0
[pid  5169] close(5 <unfinished ...>
[pid  5172] <... prctl resumed>)        = 0
[pid  5170] close(5 <unfinished ...>
[pid  5171] <... close resumed>)        = 0
[pid  5172] setpgid(0, 0 <unfinished ...>
[pid  5168] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5167] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5065] <... clone resumed>, child_tidptr=0x555555646650) = 5172
[pid  5172] <... setpgid resumed>)      = 0
[pid  5168] <... openat resumed>)       = 5
[pid  5167] <... openat resumed>)       = 5
[pid  5168] write(5, "t", 1 <unfinished ...>
[pid  5167] write(5, "t", 1 <unfinished ...>
[pid  5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5172] write(3, "1000", 4 <unfinished ...>
[pid  5171] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5170] <... close resumed>)        = 0
[pid  5169] <... close resumed>)        = 0
[pid  5172] <... write resumed>)        = 4
[pid  5171] <... openat resumed>)       = 5
[pid  5170] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5172] close(3 <unfinished ...>
[pid  5171] write(5, "t", 1 <unfinished ...>
[pid  5168] <... write resumed>)        = 1
[pid  5167] <... write resumed>)        = 1
[pid  5172] <... close resumed>)        = 0
[pid  5170] <... openat resumed>)       = 5
[pid  5168] exit_group(0 <unfinished ...>
[pid  5169] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5167] exit_group(0 <unfinished ...>
[pid  5172] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5169] <... openat resumed>)       = 5
[pid  5170] write(5, "t", 1 <unfinished ...>
[pid  5169] write(5, "t", 1 <unfinished ...>
[pid  5168] <... exit_group resumed>)   = ?
[pid  5172] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5168] +++ exited with 0 +++
[pid  5062] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} ---
[pid  5172] <... openat resumed>)       = 4
[pid  5062] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5171] <... write resumed>)        = 1
[pid  5171] exit_group(0)               = ?
[pid  5172] sendfile(4, 3, [122] <unfinished ...>
[pid  5062] <... openat resumed>)       = 3
[pid  5062] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5062] close(3 <unfinished ...>
[pid  5171] +++ exited with 0 +++
[pid  5170] <... write resumed>)        = 1
[pid  5169] <... write resumed>)        = 1
[pid  5167] <... exit_group resumed>)   = ?
[pid  5062] <... close resumed>)        = 0
[pid  5170] exit_group(0 <unfinished ...>
[pid  5169] exit_group(0 <unfinished ...>
[pid  5167] +++ exited with 0 +++
[pid  5062] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5170] <... exit_group resumed>)   = ?
[pid  5169] <... exit_group resumed>)   = ?
[pid  5061] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5061] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5061] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5061] close(3)                    = 0
[pid  5061] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached
 <unfinished ...>
[pid  5173] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5061] <... clone resumed>, child_tidptr=0x555555646650) = 5173
[pid  5173] <... set_robust_list resumed>) = 0
[pid  5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5173] setpgid(0, 0)               = 0
[pid  5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5173] write(3, "1000", 4)         = 4
[pid  5173] close(3)                    = 0
[pid  5173] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5169] +++ exited with 0 +++
[pid  5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} ---
[pid  5059] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5068] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5068] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5068] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5068] close(3)                    = 0
[pid  5170] +++ exited with 0 +++
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5059] <... restart_syscall resumed>) = 0
[pid  5062] <... clone resumed>, child_tidptr=0x555555646650) = 5174
./strace-static-x86_64: Process 5175 attached
[pid  5068] <... clone resumed>, child_tidptr=0x555555646650) = 5175
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5060] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5060] <... restart_syscall resumed>) = 0
[pid  5059] <... openat resumed>)       = 3
[pid  5175] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5174 attached
 <unfinished ...>
[pid  5175] <... set_robust_list resumed>) = 0
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
[pid  5175] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5174] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5060] <... openat resumed>)       = 3
[pid  5059] close(3 <unfinished ...>
[pid  5174] <... set_robust_list resumed>) = 0
[pid  5174] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5060] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5059] <... close resumed>)        = 0
[pid  5174] <... prctl resumed>)        = 0
[pid  5060] <... ioctl resumed>)        = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5174] setpgid(0, 0 <unfinished ...>
[pid  5060] close(3 <unfinished ...>
[pid  5174] <... setpgid resumed>)      = 0
[pid  5060] <... close resumed>)        = 0
[pid  5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5177 attached
./strace-static-x86_64: Process 5176 attached
 <unfinished ...>
[pid  5174] <... openat resumed>)       = 3
[pid  5177] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5059] <... clone resumed>, child_tidptr=0x555555646650) = 5176
[pid  5177] <... set_robust_list resumed>) = 0
[pid  5177] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5176] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5175] <... prctl resumed>)        = 0
[pid  5174] write(3, "1000", 4 <unfinished ...>
[pid  5173] <... openat resumed>)       = 3
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5177
[pid  5177] <... prctl resumed>)        = 0
[pid  5176] <... set_robust_list resumed>) = 0
[pid  5175] setpgid(0, 0 <unfinished ...>
[pid  5174] <... write resumed>)        = 4
[pid  5173] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5177] setpgid(0, 0 <unfinished ...>
[pid  5176] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5175] <... setpgid resumed>)      = 0
[pid  5174] close(3 <unfinished ...>
[pid  5173] <... openat resumed>)       = 4
[pid  5177] <... setpgid resumed>)      = 0
[pid  5176] <... prctl resumed>)        = 0
[pid  5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5174] <... close resumed>)        = 0
[pid  5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5176] setpgid(0, 0 <unfinished ...>
[pid  5175] <... openat resumed>)       = 3
[pid  5174] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5173] sendfile(4, 3, [122] <unfinished ...>
[pid  5177] <... openat resumed>)       = 3
[pid  5176] <... setpgid resumed>)      = 0
[pid  5175] write(3, "1000", 4 <unfinished ...>
[pid  5174] <... openat resumed>)       = 3
[pid  5177] write(3, "1000", 4 <unfinished ...>
[pid  5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5175] <... write resumed>)        = 4
[pid  5174] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5177] <... write resumed>)        = 4
[pid  5176] <... openat resumed>)       = 3
[pid  5175] close(3 <unfinished ...>
[pid  5174] <... openat resumed>)       = 4
[pid  5177] close(3 <unfinished ...>
[pid  5176] write(3, "1000", 4 <unfinished ...>
[pid  5175] <... close resumed>)        = 0
[pid  5174] sendfile(4, 3, [122] <unfinished ...>
[pid  5177] <... close resumed>)        = 0
[pid  5176] <... write resumed>)        = 4
[pid  5177] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5176] close(3 <unfinished ...>
[pid  5175] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5177] <... openat resumed>)       = 3
[pid  5176] <... close resumed>)        = 0
[pid  5175] <... openat resumed>)       = 3
[pid  5177] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5176] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5175] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5177] sendfile(4, 3, [122] <unfinished ...>
[pid  5176] <... openat resumed>)       = 3
[pid  5175] <... openat resumed>)       = 4
[pid  5176] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5175] sendfile(4, 3, [122] <unfinished ...>
[pid  5176] <... openat resumed>)       = 4
[   77.224928][ T5177] syz-executor101 (5177): drop_caches: 3
[   77.228797][ T5172] syz-executor101 (5172): drop_caches: 3
[   77.255473][ T5176] syz-executor101 (5176): drop_caches: 3
[   77.265223][ T5173] syz-executor101 (5173): drop_caches: 3
[   77.267919][ T5175] syz-executor101 (5175): drop_caches: 3
[   77.295081][ T5174] syz-executor101 (5174): drop_caches: 3
[   77.450567][ T5172] syz-executor101 (5172): drop_caches: 3
[   77.461262][ T5177] syz-executor101 (5177): drop_caches: 3
[   77.480316][ T5174] syz-executor101 (5174): drop_caches: 3
[   77.480679][ T5173] syz-executor101 (5173): drop_caches: 3
[   77.490868][ T5176] syz-executor101 (5176): drop_caches: 3
[pid  5176] sendfile(4, 3, [122] <unfinished ...>
[pid  5177] <... sendfile resumed> => [693], 571) = 571
[pid  5176] <... sendfile resumed> => [693], 571) = 571
[pid  5174] <... sendfile resumed> => [693], 571) = 571
[pid  5172] <... sendfile resumed> => [693], 571) = 571
[pid  5177] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5176] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5174] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5177] <... memfd_create resumed>) = 5
[pid  5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5172] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5176] <... memfd_create resumed>) = 5
[pid  5172] <... memfd_create resumed>) = 5
[pid  5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5175] <... sendfile resumed> => [693], 571) = 571
[pid  5174] <... memfd_create resumed>) = 5
[pid  5173] <... sendfile resumed> => [693], 571) = 571
[pid  5172] <... mmap resumed>)         = 0x7f082840d000
[pid  5175] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[pid  5177] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5175] <... memfd_create resumed>) = 5
[pid  5173] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5176] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5175] <... mmap resumed>)         = 0x7f082840d000
[pid  5173] <... memfd_create resumed>) = 5
[pid  5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f082840d000
[   77.493179][ T5175] syz-executor101 (5175): drop_caches: 3
[pid  5172] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5176] <... write resumed>)        = 2097152
[pid  5177] <... write resumed>)        = 2097152
[pid  5174] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5173] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5176] munmap(0x7f082840d000, 138412032) = 0
[pid  5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5176] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5176] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5175] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x02\x02\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x0f\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\xff\x03\x00\x00\x00\x00\x00\x00\xb5\x0b\x00\x00\x04\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5177] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5172] <... write resumed>)        = 2097152
[pid  5176] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5177] <... munmap resumed>)       = 0
[pid  5176] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5173] <... write resumed>)        = 2097152
[pid  5176] close(6 <unfinished ...>
[pid  5177] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5176] <... close resumed>)        = 0
[pid  5173] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5172] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5176] close(5 <unfinished ...>
[pid  5177] <... openat resumed>)       = 6
[pid  5173] <... munmap resumed>)       = 0
[pid  5177] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5175] <... write resumed>)        = 2097152
[pid  5174] <... write resumed>)        = 2097152
[pid  5173] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5177] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5175] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5177] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5173] <... openat resumed>)       = 6
[pid  5177] <... ioctl resumed>)        = 0
[pid  5173] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5172] <... munmap resumed>)       = 0
[pid  5172] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5173] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5173] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5177] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5176] <... close resumed>)        = 0
[pid  5175] <... munmap resumed>)       = 0
[pid  5177] close(6)                    = 0
[pid  5177] close(5 <unfinished ...>
[pid  5172] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5172] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5174] munmap(0x7f082840d000, 138412032 <unfinished ...>
[pid  5176] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5175] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5173] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5172] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5173] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5172] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5172] close(6 <unfinished ...>
[pid  5173] close(6 <unfinished ...>
[pid  5172] <... close resumed>)        = 0
[pid  5172] close(5 <unfinished ...>
[pid  5175] <... openat resumed>)       = 6
[pid  5173] <... close resumed>)        = 0
[pid  5175] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5173] close(5 <unfinished ...>
[pid  5174] <... munmap resumed>)       = 0
[pid  5177] <... close resumed>)        = 0
[pid  5176] <... openat resumed>)       = 5
[pid  5175] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5173] <... close resumed>)        = 0
[pid  5175] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5176] write(5, "t", 1 <unfinished ...>
[pid  5174] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5174] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5174] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5177] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5172] <... close resumed>)        = 0
[pid  5175] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5174] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5177] <... openat resumed>)       = 5
[pid  5175] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5174] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5174] close(6 <unfinished ...>
[pid  5175] close(6 <unfinished ...>
[pid  5174] <... close resumed>)        = 0
[pid  5175] <... close resumed>)        = 0
[pid  5174] close(5 <unfinished ...>
[pid  5177] write(5, "t", 1 <unfinished ...>
[pid  5175] close(5 <unfinished ...>
[pid  5174] <... close resumed>)        = 0
[pid  5173] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5174] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5173] <... openat resumed>)       = 5
[pid  5175] <... close resumed>)        = 0
[pid  5173] write(5, "t", 1 <unfinished ...>
[pid  5172] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid  5172] write(5, "t", 1 <unfinished ...>
[pid  5175] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000 <unfinished ...>
[pid  5174] write(5, "t", 1 <unfinished ...>
[pid  5175] <... openat resumed>)       = 5
[pid  5175] write(5, "t", 1 <unfinished ...>
[pid  5177] <... write resumed>)        = 1
[pid  5176] <... write resumed>)        = 1
[pid  5172] <... write resumed>)        = 1
[pid  5177] exit_group(0 <unfinished ...>
[pid  5176] exit_group(0 <unfinished ...>
[pid  5172] exit_group(0 <unfinished ...>
[pid  5177] <... exit_group resumed>)   = ?
[pid  5176] <... exit_group resumed>)   = ?
[pid  5172] <... exit_group resumed>)   = ?
[pid  5177] +++ exited with 0 +++
[pid  5060] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5060] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5060] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5060] close(3)                    = 0
[pid  5060] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5178 attached
 <unfinished ...>
[pid  5176] +++ exited with 0 +++
[pid  5178] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5060] <... clone resumed>, child_tidptr=0x555555646650) = 5178
[pid  5178] <... set_robust_list resumed>) = 0
[pid  5059] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5178] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5172] +++ exited with 0 +++
[pid  5059] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5178] <... prctl resumed>)        = 0
[pid  5178] setpgid(0, 0 <unfinished ...>
[pid  5059] <... openat resumed>)       = 3
[pid  5178] <... setpgid resumed>)      = 0
[pid  5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5059] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5178] <... openat resumed>)       = 3
[pid  5178] write(3, "1000", 4 <unfinished ...>
[pid  5059] <... ioctl resumed>)        = 0
[pid  5178] <... write resumed>)        = 4
[pid  5059] close(3 <unfinished ...>
[pid  5178] close(3 <unfinished ...>
[pid  5065] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5178] <... close resumed>)        = 0
[pid  5065] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5059] <... close resumed>)        = 0
[pid  5178] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5065] <... restart_syscall resumed>) = 0
[pid  5059] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5178] <... openat resumed>)       = 3
[pid  5178] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5179 attached
) = 4
[pid  5179] set_robust_list(0x555555646660, 24 <unfinished ...>
[pid  5178] sendfile(4, 3, [122] <unfinished ...>