./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2340401968 <...> Warning: Permanently added '10.128.0.196' (ED25519) to the list of known hosts. execve("./syz-executor2340401968", ["./syz-executor2340401968"], 0x7fff11516a40 /* 10 vars */) = 0 brk(NULL) = 0x555560e18000 brk(0x555560e18d00) = 0x555560e18d00 arch_prctl(ARCH_SET_FS, 0x555560e18380) = 0 set_tid_address(0x555560e18650) = 5831 set_robust_list(0x555560e18660, 24) = 0 rseq(0x555560e18ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2340401968", 4096) = 28 getrandom("\x6f\x5a\xbc\xef\x2a\x7e\xba\xc2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555560e18d00 brk(0x555560e39d00) = 0x555560e39d00 brk(0x555560e3a000) = 0x555560e3a000 mprotect(0x7f56eeee7000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5832 attached [pid 5832] set_robust_list(0x555560e18660, 24 [pid 5831] <... clone resumed>, child_tidptr=0x555560e18650) = 5832 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5832] getppid() = 0 [pid 5832] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5832] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5832] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5832] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5832] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5832] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5832] unshare(CLONE_NEWNS) = 0 [pid 5832] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5832] unshare(CLONE_NEWIPC) = 0 [pid 5832] unshare(CLONE_NEWCGROUP) = 0 [pid 5832] unshare(CLONE_NEWUTS) = 0 [pid 5832] unshare(CLONE_SYSVSEM) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "16777216", 8) = 8 [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "536870912", 9) = 9 [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1024", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "8192", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1024", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1024", 4) = 4 [pid 5832] close(3) = 0 [pid 5832] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5832] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5832] close(3) = 0 [pid 5832] getpid() = 1 [pid 5832] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached , child_tidptr=0x555560e18650) = 3 [pid 5855] set_robust_list(0x555560e18660, 24) = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5855] setpgid(0, 0) = 0 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5855] write(3, "1000", 4) = 4 [pid 5855] close(3) = 0 [pid 5855] read(200, 0x7ffea81f3520, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5855] write(1, "executing program\n", 18executing program ) = 18 [pid 5855] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5855] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5855] write(200, "\x01\x80\xc2\x00\x00\x02\x01\x80\xc2\x00\x00\x00\x08\x00\x45\x00\x00\x2c\x00\x03\x00\x00\x00\x06\xba\xca\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x4e\x26\x44\x43\x42\x41\x44\x43\x42\x41\x60\xc2\x02\x00\x3a\x3c\x00\x00\x02\x04\x05\xa0", 58) = 58 [pid 5855] close(3) = 0 [pid 5855] close(4) = -1 EBADF (Bad file descriptor) [pid 5855] close(5) = -1 EBADF (Bad file descriptor) [pid 5855] close(6) = -1 EBADF (Bad file descriptor) [pid 5855] close(7) = -1 EBADF (Bad file descriptor) [pid 5855] close(8) = -1 EBADF (Bad file descriptor) [pid 5855] close(9) = -1 EBADF (Bad file descriptor) [pid 5855] close(10) = -1 EBADF (Bad file descriptor) [pid 5855] close(11) = -1 EBADF (Bad file descriptor) [pid 5855] close(12) = -1 EBADF (Bad file descriptor) [pid 5855] close(13) = -1 EBADF (Bad file descriptor) [pid 5855] close(14) = -1 EBADF (Bad file descriptor) [pid 5855] close(15) = -1 EBADF (Bad file descriptor) [pid 5855] close(16) = -1 EBADF (Bad file descriptor) [pid 5855] close(17) = -1 EBADF (Bad file descriptor) [pid 5855] close(18) = -1 EBADF (Bad file descriptor) [pid 5855] close(19) = -1 EBADF (Bad file descriptor) [pid 5855] close(20) = -1 EBADF (Bad file descriptor) [pid 5855] close(21) = -1 EBADF (Bad file descriptor) [pid 5855] close(22) = -1 EBADF (Bad file descriptor) [pid 5855] close(23) = -1 EBADF (Bad file descriptor) [pid 5855] close(24) = -1 EBADF (Bad file descriptor) [pid 5855] close(25) = -1 EBADF (Bad file descriptor) [pid 5855] close(26) = -1 EBADF (Bad file descriptor) [pid 5855] close(27) = -1 EBADF (Bad file descriptor) [pid 5855] close(28) = -1 EBADF (Bad file descriptor) [pid 5855] close(29) = -1 EBADF (Bad file descriptor) [pid 5855] exit_group(0) = ? [pid 5855] +++ exited with 0 +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 4 ./strace-static-x86_64: Process 5856 attached [pid 5856] set_robust_list(0x555560e18660, 24executing program ) = 0 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5856] setpgid(0, 0) = 0 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1000", 4) = 4 [pid 5856] close(3) = 0 [pid 5856] read(200, 0x7ffea81f3520, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5856] write(1, "executing program\n", 18) = 18 [pid 5856] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [ 96.685456][ C1] sched: DL replenish lagged too much [pid 5856] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5856] write(200, "\x01\x80\xc2\x00\x00\x02\x01\x80\xc2\x00\x00\x00\x08\x00\x45\x00\x00\x2c\x00\x03\x00\x00\x00\x06\xba\xca\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x4e\x26\x44\x43\x42\x41\x44\x43\x42\x41\x60\xc2\x02\x00\x3a\x3c\x00\x00\x02\x04\x05\xa0", 58) = 58 [pid 5832] kill(-4, SIGKILL) = 0 [pid 5832] kill(4, SIGKILL) = 0 [pid 5856] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 5 ./strace-static-x86_64: Process 5859 attached [pid 5859] set_robust_list(0x555560e18660, 24) = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5859] setpgid(0, 0) = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 [pid 5859] read(200, 0x7ffea81f3520, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5859] write(1, "executing program\n", 18) = 18 [pid 5859] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5859] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 [pid 5832] kill(-5, SIGKILL) = 0 [pid 5832] kill(5, SIGKILL) = 0 [pid 5859] <... sendmsg resumed>) = ? [pid 5859] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 6 executing program ./strace-static-x86_64: Process 5861 attached [pid 5861] set_robust_list(0x555560e18660, 24) = 0 [pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5861] setpgid(0, 0) = 0 [pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5861] write(3, "1000", 4) = 4 [pid 5861] close(3) = 0 [pid 5861] read(200, 0x7ffea81f3520, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5861] write(1, "executing program\n", 18) = 18 [pid 5861] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5861] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [pid 5861] write(200, "\x01\x80\xc2\x00\x00\x02\x01\x80\xc2\x00\x00\x00\x08\x00\x45\x00\x00\x2c\x00\x03\x00\x00\x00\x06\xba\xca\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x4e\x26\x44\x43\x42\x41\x44\x43\x42\x41\x60\xc2\x02\x00\x3a\x3c\x00\x00\x02\x04\x05\xa0", 58) = 58 [pid 5861] close(3) = 0 [pid 5861] close(4) = -1 EBADF (Bad file descriptor) [pid 5861] close(5) = -1 EBADF (Bad file descriptor) [pid 5861] close(6) = -1 EBADF (Bad file descriptor) [pid 5861] close(7) = -1 EBADF (Bad file descriptor) [pid 5861] close(8) = -1 EBADF (Bad file descriptor) [pid 5861] close(9) = -1 EBADF (Bad file descriptor) [pid 5861] close(10) = -1 EBADF (Bad file descriptor) [pid 5861] close(11) = -1 EBADF (Bad file descriptor) [pid 5861] close(12) = -1 EBADF (Bad file descriptor) [pid 5861] close(13) = -1 EBADF (Bad file descriptor) [pid 5861] close(14) = -1 EBADF (Bad file descriptor) [pid 5861] close(15) = -1 EBADF (Bad file descriptor) [pid 5861] close(16) = -1 EBADF (Bad file descriptor) [pid 5861] close(17) = -1 EBADF (Bad file descriptor) [pid 5861] close(18) = -1 EBADF (Bad file descriptor) [pid 5861] close(19) = -1 EBADF (Bad file descriptor) [pid 5861] close(20) = -1 EBADF (Bad file descriptor) [pid 5861] close(21) = -1 EBADF (Bad file descriptor) [pid 5861] close(22) = -1 EBADF (Bad file descriptor) [pid 5861] close(23) = -1 EBADF (Bad file descriptor) [pid 5861] close(24) = -1 EBADF (Bad file descriptor) [pid 5861] close(25) = -1 EBADF (Bad file descriptor) [pid 5861] close(26) = -1 EBADF (Bad file descriptor) [pid 5861] close(27) = -1 EBADF (Bad file descriptor) [pid 5861] close(28) = -1 EBADF (Bad file descriptor) [pid 5861] close(29) = -1 EBADF (Bad file descriptor) [pid 5861] exit_group(0) = ? [pid 5861] +++ exited with 0 +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5832] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5863 attached , child_tidptr=0x555560e18650) = 7 [pid 5863] set_robust_list(0x555560e18660, 24) = 0 [pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5863] setpgid(0, 0) = 0 [pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] kill(-7, SIGKILL) = 0 [pid 5832] kill(7, SIGKILL) = 0 [pid 5863] <... openat resumed>) = ? [pid 5863] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=7, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 8 ./strace-static-x86_64: Process 5866 attached [pid 5866] set_robust_list(0x555560e18660, 24) = 0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] kill(-8, SIGKILL) = 0 [pid 5832] kill(8, SIGKILL) = 0 [pid 5866] <... openat resumed>) = ? [pid 5866] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=8, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 9 ./strace-static-x86_64: Process 5869 attached [pid 5869] set_robust_list(0x555560e18660, 24) = 0 [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5869] setpgid(0, 0) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5869] write(3, "1000", 4) = 4 [pid 5869] close(3) = 0 [pid 5869] read(200, 0x7ffea81f3520, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5869] write(1, "executing program\n", 18) = 18 [pid 5869] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER [pid 5832] kill(-9, SIGKILL) = 0 [pid 5832] kill(9, SIGKILL) = 0 [pid 5869] <... socket resumed>) = ? [pid 5869] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=9, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5871 attached [pid 5871] set_robust_list(0x555560e18660, 24) = 0 [pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5871] setpgid(0, 0) = 0 [pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] <... clone resumed>, child_tidptr=0x555560e18650) = 10 [pid 5871] <... openat resumed>) = 3 [pid 5832] kill(-10, SIGKILL) = 0 [pid 5832] kill(10, SIGKILL) = 0 [pid 5871] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=10, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 11 ./strace-static-x86_64: Process 5873 attached [pid 5873] set_robust_list(0x555560e18660, 24) = 0 [pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5873] setpgid(0, 0) = 0 [pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] kill(-11, SIGKILL) = 0 [pid 5832] kill(11, SIGKILL) = 0 [pid 5873] <... openat resumed>) = ? [pid 5873] +++ killed by SIGKILL +++ [pid 5832] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=11, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 s */} --- [ 286.360019][ T31] INFO: task kworker/u8:2:36 blocked for more than 143 seconds. [ 286.381869][ T31] Not tainted 6.16.0-rc3-syzkaller-00329-gdfba48a70cb6 #0 [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560e18650) = 12 ./strace-static-x86_64: Process 5874 attached [pid 5874] set_robust_list(0x555560e18660, 24) = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] setpgid(0, 0) = 0 [ 290.682772][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] kill(-12, SIGKILL) = 0 [pid 5832] kill(12, SIGKILL) = 0 [ 293.711190][ T31] task:kworker/u8:2 state:D stack:21032 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00004000 [ 295.754955][ T31] Workqueue: ipv6_addrconf addrconf_dad_work [ 295.775270][ T31] Call Trace: