ci-upstream-kasan-gce-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-kasan-gce-root/syz-executor2081024978
<...>
Warning: Permanently added '10.128.0.252' (ED25519) to the list of known hosts.
execve("ci-upstream-kasan-gce-root/syz-executor2081024978", ["ci-upstream-kasan-gce-root/syz-executor2081024978"], 0x7fffb72cd7c0 /* 10 vars */) = 0
brk(NULL) = 0x55556a144000
brk(0x55556a144d80) = 0x55556a144d80
arch_prctl(ARCH_SET_FS, 0x55556a144400) = 0
set_tid_address(0x55556a1446d0) = 5630
set_robust_list(0x55556a1446e0, 24) = 0
rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-kasan-gce-root/syz-executor2081024978", 4096) = 55
getrandom("\xd6\x6c\x9f\x1a\xc6\x30\x22\x95", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55556a144d80
brk(0x55556a165d80) = 0x55556a165d80
brk(0x55556a166000) = 0x55556a166000
mprotect(0x7f6414045000, 20480, 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
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5631 attached
, child_tidptr=0x55556a1446d0) = 5631
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5631] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5631] setpgid(0, 0) = 0
[pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5631] write(3, "1000", 4) = 4
[pid 5631] close(3) = 0
[pid 5631] write(1, "executing program\n", 18) = 18
[pid 5631] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
executing program
[pid 5631] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5631] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5631] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5631] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5631] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5631] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5631] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5631] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5631] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5631] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5631] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5631] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5631] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5631] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5631] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5631] getpid() = 5631
[pid 5631] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5631] exit_group(0) = ?
[ 85.392506][ T5631]
[ 85.394856][ T5631] =============================
[ 85.399841][ T5631] WARNING: suspicious RCU usage
[ 85.404758][ T5631] syzkaller #0 Not tainted
[ 85.409212][ T5631] -----------------------------
[ 85.414095][ T5631] lib/maple_tree.c:720 suspicious rcu_dereference_check() usage!
[ 85.421821][ T5631]
[ 85.421821][ T5631] other info that might help us debug this:
[ 85.421821][ T5631]
[ 85.432066][ T5631]
[ 85.432066][ T5631] rcu_scheduler_active = 2, debug_locks = 1
[ 85.440147][ T5631] locks held by syz-executor208/5631: 1, last CPU#1:
[ 85.446876][ T5631] #0: ffff8880792b60a0 (&ctx->uring_lock){+.+.}-{4:4}, at: tctx_task_work_run+0x2d3/0xa80
[ 85.456975][ T5631]
[ 85.456975][ T5631] stack backtrace:
[ 85.462936][ T5631] CPU: 1 UID: 0 PID: 5631 Comm: syz-executor208 Not tainted syzkaller #0 PREEMPT(full)
[ 85.472652][ T5631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2026
[ 85.482697][ T5631] Call Trace:
[ 85.485963][ T5631]
[ 85.488879][ T5631] dump_stack_lvl+0xe8/0x150
[ 85.493485][ T5631] lockdep_rcu_suspicious+0x140/0x1d0
[ 85.498858][ T5631] mas_start+0x3cc/0x640
[ 85.503111][ T5631] mas_walk+0x1db/0x490
[ 85.507262][ T5631] ublk_init_iod+0x5d2/0x1120
[ 85.511941][ T5631] ? __pfx___mutex_trylock_common+0x10/0x10
[ 85.517848][ T5631] ? __pfx_ublk_init_iod+0x10/0x10
[ 85.522963][ T5631] ? __mutex_unlock_slowpath+0x731/0x900
[ 85.528611][ T5631] ? srso_alias_return_thunk+0x5/0xfbef5
[ 85.534238][ T5631] ? lock_acquire+0x115/0x350
[ 85.538912][ T5631] ? srso_alias_return_thunk+0x5/0xfbef5
[ 85.544536][ T5631] ? ublk_setup_iod+0x15c/0x2b0
[ 85.549396][ T5631] ublk_dispatch_req+0x97/0x9c0
[ 85.554254][ T5631] ? tctx_task_work_run+0x2df/0xa80
[ 85.559464][ T5631] ? __pfx_ublk_cmd_tw_cb+0x10/0x10
[ 85.564678][ T5631] tctx_task_work_run+0x73d/0xa80
[ 85.569728][ T5631] ? tctx_task_work_run+0x4c1/0xa80
[ 85.574934][ T5631] ? __pfx_tctx_task_work_run+0x10/0x10
[ 85.580487][ T5631] ? srso_alias_return_thunk+0x5/0xfbef5
[ 85.586117][ T5631] tctx_task_work+0x3f/0x60
[ 85.590644][ T5631] task_work_run+0x1d9/0x270
[ 85.595237][ T5631] ? __pfx_task_work_run+0x10/0x10
[ 85.600344][ T5631] ? do_raw_spin_unlock+0xf5/0x200
[ 85.605473][ T5631] do_exit+0x73a/0x2360
[ 85.609620][ T5631] ? do_raw_spin_unlock+0xf5/0x200
[ 85.614738][ T5631] ? srso_alias_return_thunk+0x5/0xfbef5
[ 85.620363][ T5631] ? try_to_wake_up+0x8c5/0x14d0
[ 85.625298][ T5631] ? __pfx_do_exit+0x10/0x10
[ 85.629880][ T5631] ? rcu_is_watching+0x16/0xb0
[ 85.634644][ T5631] ? srso_alias_return_thunk+0x5/0xfbef5
[ 85.640276][ T5631] ? srso_alias_return_thunk+0x5/0xfbef5
[ 85.645905][ T5631] ? _raw_spin_unlock_irq+0x23/0x50
[ 85.651098][ T5631] do_group_exit+0x22d/0x2f0
[ 85.655718][ T5631] __x64_sys_exit_group+0x3f/0x40
[ 85.660736][ T5631] x64_sys_call+0x18c6/0x18d0
[ 85.665413][ T5631] do_syscall_64+0x166/0x520
[ 85.669996][ T5631] ? trace_irq_disable+0x3b/0x140
[ 85.675011][ T5631] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.681081][ T5631] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.686967][ T5631] RIP: 0033:0x7f6413fb1325
[ 85.691371][ T5631] Code: Unable to access opcode bytes at 0x7f6413fb12fb.
[ 85.698369][ T5631] RSP: 002b:00007ffec9819178 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
[ 85.706778][ T5631] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6413fb1325
[ 85.714741][ T5631] RDX: 00000000000000e7 RSI: ffffffffffffffd8 RDI: 0000000000000000
[ 85.722702][ T5631] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 85.730662][ T5631] R10: 0000000000000001 R11: 0000000000000206 R12: 0000000000000000
[pid 5631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[ 85.738622][ T5631] R13: 00007f641404a158 R14: 00007f641404c408 R15: 00007f641404c420
[ 85.746610][ T5631]
[ 85.750566][ T5631] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.750648][ T5631] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.761068][ T2043] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.761100][ T2043] Buffer I/O error on dev ublkb0, logical block 0, async page read
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5635 attached
, child_tidptr=0x55556a1446d0) = 5635
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5635] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 85.763237][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.763269][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.763387][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.763415][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.763539][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[pid 5635] setpgid(0, 0) = 0
[pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 85.763568][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.763779][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.763807][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.763935][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.763962][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.764096][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[pid 5635] write(3, "1000", 4) = 4
[pid 5635] close(3) = 0
[pid 5635] write(1, "executing program\n", 18) = 18
executing program
[pid 5635] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5635] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5635] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5635] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5635] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5635] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5635] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5635] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5635] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[ 85.764124][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.764159][ T9] ldm_validate_partition_table(): Disk read failed.
[ 85.764252][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.764279][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[ 85.764389][ T2017] I/O error, dev ublkb0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2
[ 85.764417][ T2017] Buffer I/O error on dev ublkb0, logical block 0, async page read
[pid 5635] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5635] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5635] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5635] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5635] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5635] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5635] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[ 85.764645][ T9] Dev ublkb0: unable to read RDB block 0
[ 85.765279][ T9] ublkb0: unable to read partition table
[pid 5635] getpid() = 5635
[pid 5635] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5635] exit_group(0) = ?
[pid 5635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5637 attached
, child_tidptr=0x55556a1446d0) = 5637
[pid 5637] set_robust_list(0x55556a1446e0, 24
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5637] <... set_robust_list resumed>) = 0
[pid 5637] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5637] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5637] setpgid(0, 0) = 0
[pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5637] write(3, "1000", 4) = 4
[pid 5637] close(3) = 0
[pid 5637] write(1, "executing program\n", 18) = 18
executing program
[pid 5637] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5637] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5637] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5637] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5637] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5637] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5637] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5637] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[ 86.027914][ T9] ldm_validate_partition_table(): Disk read failed.
[ 86.028358][ T9] Dev ublkb1: unable to read RDB block 0
[ 86.028950][ T9] ublkb1: unable to read partition table
[ 86.049816][ T188] cfg80211: failed to load regulatory.db
[pid 5637] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5637] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5637] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5637] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5637] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5637] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5637] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5637] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5637] getpid() = 5637
[pid 5637] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5637] exit_group(0) = ?
[pid 5637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5639 attached
, child_tidptr=0x55556a1446d0) = 5639
[pid 5639] set_robust_list(0x55556a1446e0, 24
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5639] <... set_robust_list resumed>) = 0
[pid 5639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5639] <... prctl resumed>) = 0
[pid 5639] setpgid(0, 0) = 0
[pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5639] write(3, "1000", 4) = 4
[pid 5639] close(3) = 0
executing program
[pid 5639] write(1, "executing program\n", 18) = 18
[pid 5639] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5639] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5639] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5639] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5639] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5639] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5639] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[ 86.142396][ T188] ldm_validate_partition_table(): Disk read failed.
[ 86.142793][ T188] Dev ublkb2: unable to read RDB block 0
[ 86.143319][ T188] ublkb2: unable to read partition table
[pid 5639] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5639] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5639] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5639] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5639] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5639] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5639] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5639] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5639] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5639] getpid() = 5639
[pid 5639] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5639] exit_group(0) = ?
[pid 5639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5641 attached
, child_tidptr=0x55556a1446d0) = 5641
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5641] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5641] setpgid(0, 0) = 0
[pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5641] write(3, "1000", 4) = 4
[pid 5641] close(3) = 0
executing program
[pid 5641] write(1, "executing program\n", 18) = 18
[pid 5641] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5641] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5641] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5641] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5641] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5641] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5641] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5641] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5641] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5641] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5641] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[ 86.293636][ T188] ldm_validate_partition_table(): Disk read failed.
[ 86.294063][ T188] Dev ublkb3: unable to read RDB block 0
[ 86.295069][ T188] ublkb3: unable to read partition table
[pid 5641] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5641] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5641] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5641] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5641] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5641] getpid() = 5641
[pid 5641] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5641] exit_group(0) = ?
[pid 5641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5643 attached
, child_tidptr=0x55556a1446d0) = 5643
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5643] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5643] setpgid(0, 0) = 0
[pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5643] write(3, "1000", 4) = 4
[pid 5643] close(3) = 0
[pid 5643] write(1, "executing program\n", 18) = 18
executing program
[pid 5643] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5643] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5643] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5643] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5643] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[ 86.388572][ T30] ldm_validate_partition_table(): Disk read failed.
[ 86.389124][ T30] Dev ublkb4: unable to read RDB block 0
[ 86.389569][ T30] ublkb4: unable to read partition table
[pid 5643] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5643] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5643] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5643] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5643] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5643] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5643] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5643] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5643] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5643] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5643] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5643] getpid() = 5643
[pid 5643] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5643] exit_group(0) = ?
[pid 5643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5645 attached
, child_tidptr=0x55556a1446d0) = 5645
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5645] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5645] setpgid(0, 0) = 0
[pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5645] write(3, "1000", 4) = 4
[pid 5645] close(3) = 0
executing program
[pid 5645] write(1, "executing program\n", 18) = 18
[pid 5645] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5645] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5645] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5645] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5645] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5645] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5645] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5645] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5645] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5645] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5645] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5645] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[ 86.553951][ T9] ldm_validate_partition_table(): Disk read failed.
[ 86.554395][ T9] Dev ublkb5: unable to read RDB block 0
[ 86.555011][ T9] ublkb5: unable to read partition table
[pid 5645] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5645] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5645] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5645] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5645] getpid() = 5645
[pid 5645] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5645] exit_group(0) = ?
[pid 5645] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5647 attached
, child_tidptr=0x55556a1446d0) = 5647
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5647] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5647] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5647] setpgid(0, 0) = 0
[pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5647] write(3, "1000", 4) = 4
[pid 5647] close(3) = 0
[pid 5647] write(1, "executing program\n", 18) = 18
executing program
[pid 5647] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5647] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[ 86.651445][ T30] ldm_validate_partition_table(): Disk read failed.
[ 86.659567][ T30] Dev ublkb6: unable to read RDB block 0
[ 86.669204][ T30] ublkb6: unable to read partition table
[pid 5647] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5647] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5647] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5647] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5647] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5647] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5647] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5647] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5647] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5647] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5647] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5647] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5647] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5647] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5647] getpid() = 5647
[pid 5647] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5647] exit_group(0) = ?
[pid 5647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5649 attached
, child_tidptr=0x55556a1446d0) = 5649
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5649] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5649] <... set_robust_list resumed>) = 0
[pid 5649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5649] setpgid(0, 0) = 0
[pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5649] write(3, "1000", 4) = 4
[pid 5649] close(3) = 0
[pid 5649] write(1, "executing program\n", 18) = 18
executing program
[pid 5649] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5649] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5649] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5649] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5649] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5649] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5649] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5649] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[ 86.833259][ T188] ldm_validate_partition_table(): Disk read failed.
[ 86.833556][ T188] Dev ublkb7: unable to read RDB block 0
[ 86.833977][ T188] ublkb7: unable to read partition table
[pid 5649] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5649] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5649] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5649] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5649] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5649] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5649] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5649] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5649] getpid() = 5649
[pid 5649] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5649] exit_group(0) = ?
[pid 5649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5651 attached
, child_tidptr=0x55556a1446d0) = 5651
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5651] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5651] <... set_robust_list resumed>) = 0
[pid 5651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5651] setpgid(0, 0) = 0
[pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5651] write(3, "1000", 4) = 4
[pid 5651] close(3) = 0
[pid 5651] write(1, "executing program\n", 18) = 18
executing program
[pid 5651] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5651] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5651] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5651] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5651] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[ 86.952837][ T188] ldm_validate_partition_table(): Disk read failed.
[ 86.953364][ T188] Dev ublkb8: unable to read RDB block 0
[ 86.954128][ T188] ublkb8: unable to read partition table
[pid 5651] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5651] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5651] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5651] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5651] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5651] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5651] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5651] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5651] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5651] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5651] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5651] getpid() = 5651
[pid 5651] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5651] exit_group(0) = ?
[pid 5651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5653 attached
, child_tidptr=0x55556a1446d0) = 5653
[pid 5653] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5653] setpgid(0, 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5653] <... setpgid resumed>) = 0
[pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5653] write(3, "1000", 4) = 4
[pid 5653] close(3) = 0
executing program
[pid 5653] write(1, "executing program\n", 18) = 18
[pid 5653] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5653] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5653] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5653] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5653] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5653] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5653] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5653] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5653] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5653] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5653] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5653] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5653] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5653] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5653] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5653] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5653] getpid() = 5653
[pid 5653] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5653] exit_group(0) = ?
[pid 5653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5653, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[ 87.065045][ T188] ldm_validate_partition_table(): Disk read failed.
[ 87.065382][ T188] Dev ublkb9: unable to read RDB block 0
[ 87.065863][ T188] ublkb9: unable to read partition table
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5655 attached
, child_tidptr=0x55556a1446d0) = 5655
[pid 5655] set_robust_list(0x55556a1446e0, 24
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5655] <... set_robust_list resumed>) = 0
[pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5655] setpgid(0, 0) = 0
[pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5655] write(3, "1000", 4) = 4
[pid 5655] close(3) = 0
[pid 5655] write(1, "executing program\n", 18) = 18
executing program
[pid 5655] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5655] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5655] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5655] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5655] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5655] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5655] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5655] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5655] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5655] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5655] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5655] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5655] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5655] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5655] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5655] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5655] getpid() = 5655
[pid 5655] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5655] exit_group(0) = ?
[pid 5655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5657 attached
, child_tidptr=0x55556a1446d0) = 5657
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5657] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5657] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5657] setpgid(0, 0) = 0
[pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5657] write(3, "1000", 4) = 4
[pid 5657] close(3) = 0
executing program
[pid 5657] write(1, "executing program\n", 18) = 18
[pid 5657] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5657] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5657] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5657] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5657] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5657] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5657] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5657] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5657] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5657] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5657] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5657] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5657] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5657] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5657] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5657] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5657] getpid() = 5657
[pid 5657] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5657] exit_group(0) = ?
[pid 5657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5657, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5659 attached
, child_tidptr=0x55556a1446d0) = 5659
[pid 5659] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5659] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5659] setpgid(0, 0) = 0
[pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5659] write(3, "1000", 4) = 4
[pid 5659] close(3) = 0
executing program
[pid 5659] write(1, "executing program\n", 18) = 18
[pid 5659] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5659] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5659] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5659] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5659] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5659] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5659] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5659] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5659] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5659] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5659] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5659] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5659] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5659] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5659] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5659] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5659] getpid() = 5659
[pid 5659] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5659] exit_group(0) = ?
[pid 5659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5661 attached
, child_tidptr=0x55556a1446d0) = 5661
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5661] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5661] setpgid(0, 0) = 0
[pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5661] write(3, "1000", 4) = 4
[pid 5661] close(3) = 0
[pid 5661] write(1, "executing program\n", 18) = 18
executing program
[pid 5661] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5661] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5661] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5661] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5661] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5661] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5661] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5661] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5661] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5661] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5661] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5661] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5661] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5661] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5661] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5661] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5661] getpid() = 5661
[pid 5661] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5661] exit_group(0) = ?
[pid 5661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5663 attached
, child_tidptr=0x55556a1446d0) = 5663
[pid 5663] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5663] setpgid(0, 0) = 0
[pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5663] write(3, "1000", 4) = 4
[pid 5663] close(3) = 0
executing program
[pid 5663] write(1, "executing program\n", 18) = 18
[pid 5663] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5663] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5663] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5663] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5663] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5663] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5663] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5663] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5663] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5663] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5663] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5663] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5663] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5663] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5663] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5663] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5663] getpid() = 5663
[pid 5663] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5663] exit_group(0) = ?
[pid 5663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5663, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5665 attached
, child_tidptr=0x55556a1446d0) = 5665
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5665] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5665] setpgid(0, 0) = 0
[pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5665] write(3, "1000", 4) = 4
[pid 5665] close(3) = 0
executing program
[pid 5665] write(1, "executing program\n", 18) = 18
[pid 5665] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5665] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5665] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5665] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5665] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5665] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5665] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5665] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5665] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5665] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5665] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5665] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5665] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5665] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5665] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5665] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5665] getpid() = 5665
[pid 5665] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5665] exit_group(0) = ?
[pid 5665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5665, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5667 attached
, child_tidptr=0x55556a1446d0) = 5667
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5667] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5667] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5667] setpgid(0, 0) = 0
[pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5667] write(3, "1000", 4) = 4
[pid 5667] close(3) = 0
[pid 5667] write(1, "executing program\n", 18) = 18
executing program
[pid 5667] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5667] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5667] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5667] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5667] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5667] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5667] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5667] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5667] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5667] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5667] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5667] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5667] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5667] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5667] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5667] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5667] getpid() = 5667
[pid 5667] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5667] exit_group(0) = ?
[pid 5667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5669 attached
, child_tidptr=0x55556a1446d0) = 5669
[pid 5669] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5669] setpgid(0, 0) = 0
[pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5669] <... openat resumed>) = 3
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5669] write(3, "1000", 4) = 4
[pid 5669] close(3) = 0
executing program
[pid 5669] write(1, "executing program\n", 18) = 18
[pid 5669] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5669] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5669] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5669] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5669] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5669] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5669] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5669] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5669] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5669] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5669] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5669] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5669] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5669] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5669] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5669] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5669] getpid() = 5669
[pid 5669] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5669] exit_group(0) = ?
[pid 5669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5671 attached
, child_tidptr=0x55556a1446d0) = 5671
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5671] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5671] <... set_robust_list resumed>) = 0
[pid 5671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5671] setpgid(0, 0) = 0
[pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5671] write(3, "1000", 4) = 4
[pid 5671] close(3) = 0
[pid 5671] write(1, "executing program\n", 18) = 18
executing program
[pid 5671] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5671] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5671] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5671] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5671] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5671] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5671] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5671] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5671] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5671] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5671] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5671] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = 0x7f6413f89000
[pid 5671] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5671] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5671] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5671] io_uring_enter(6, 1, 0, 0, NULL, 8) = 1
[pid 5671] getpid() = 5671
[pid 5671] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5671] exit_group(0) = ?
[pid 5671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5671, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5673 attached
, child_tidptr=0x55556a1446d0) = 5673
[pid 5673] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5673] setpgid(0, 0) = 0
[pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5673] write(3, "1000", 4) = 4
[pid 5673] close(3) = 0
[pid 5673] write(1, "executing program\n", 18) = 18
executing program
[pid 5673] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5673] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5673] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5673] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5673] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5673] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5673] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5673] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5673] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5673] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5673] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5673] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5673] getpid() = 5673
[pid 5673] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5673] exit_group(0) = ?
[pid 5673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5673, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5675 attached
[pid 5675] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5675
[pid 5675] <... set_robust_list resumed>) = 0
[pid 5675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5675] setpgid(0, 0) = 0
[pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5675] write(3, "1000", 4) = 4
[pid 5675] close(3) = 0
[pid 5675] write(1, "executing program\n", 18) = 18
executing program
[pid 5675] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5675] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5675] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5675] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5675] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5675] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5675] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5675] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5675] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5675] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5675] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5675] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5675] getpid() = 5675
[pid 5675] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5675] exit_group(0) = ?
[pid 5675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5677 attached
, child_tidptr=0x55556a1446d0) = 5677
[pid 5677] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5677] setpgid(0, 0) = 0
[pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5677] write(3, "1000", 4) = 4
[pid 5677] close(3) = 0
executing program
[pid 5677] write(1, "executing program\n", 18) = 18
[pid 5677] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5677] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5677] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5677] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5677] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5677] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5677] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5677] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5677] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5677] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5677] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5677] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5677] getpid() = 5677
[pid 5677] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5677] exit_group(0) = ?
[pid 5677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5679 attached
, child_tidptr=0x55556a1446d0) = 5679
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5679] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5679] <... set_robust_list resumed>) = 0
[pid 5679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5679] setpgid(0, 0) = 0
[pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5679] write(3, "1000", 4) = 4
[pid 5679] close(3) = 0
[pid 5679] write(1, "executing program\n", 18) = 18
executing program
[pid 5679] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5679] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5679] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5679] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5679] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5679] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5679] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5679] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5679] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5679] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5679] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5679] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5679] getpid() = 5679
[pid 5679] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5679] exit_group(0) = ?
[pid 5679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5681 attached
, child_tidptr=0x55556a1446d0) = 5681
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5681] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5681] setpgid(0, 0) = 0
[pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5681] write(3, "1000", 4) = 4
executing program
[pid 5681] close(3) = 0
[pid 5681] write(1, "executing program\n", 18) = 18
[pid 5681] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5681] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5681] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5681] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5681] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5681] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5681] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5681] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5681] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5681] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5681] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5681] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5681] getpid() = 5681
[pid 5681] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5681] exit_group(0) = ?
[pid 5681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5683 attached
, child_tidptr=0x55556a1446d0) = 5683
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5683] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5683] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5683] setpgid(0, 0) = 0
[pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5683] write(3, "1000", 4) = 4
[pid 5683] close(3) = 0
[pid 5683] write(1, "executing program\n", 18) = 18
executing program
[pid 5683] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5683] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5683] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5683] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5683] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5683] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5683] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5683] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5683] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5683] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5683] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5683] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5683] getpid() = 5683
[pid 5683] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5683] exit_group(0) = ?
[pid 5683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5685 attached
, child_tidptr=0x55556a1446d0) = 5685
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5685] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5685] setpgid(0, 0) = 0
[pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5685] write(3, "1000", 4) = 4
[pid 5685] close(3) = 0
executing program
[pid 5685] write(1, "executing program\n", 18) = 18
[pid 5685] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5685] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5685] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5685] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5685] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5685] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5685] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5685] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5685] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5685] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5685] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5685] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5685] getpid() = 5685
[pid 5685] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5685] exit_group(0) = ?
[pid 5685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5685, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5687 attached
, child_tidptr=0x55556a1446d0) = 5687
[pid 5687] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5687] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5687] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5687] setpgid(0, 0) = 0
[pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5687] write(3, "1000", 4) = 4
executing program
[pid 5687] close(3) = 0
[pid 5687] write(1, "executing program\n", 18) = 18
[pid 5687] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5687] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5687] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5687] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5687] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5687] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5687] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5687] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5687] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5687] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5687] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5687] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5687] getpid() = 5687
[pid 5687] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5687] exit_group(0) = ?
[pid 5687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5689 attached
, child_tidptr=0x55556a1446d0) = 5689
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5689] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5689] setpgid(0, 0) = 0
[pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5689] write(3, "1000", 4) = 4
[pid 5689] close(3) = 0
executing program
[pid 5689] write(1, "executing program\n", 18) = 18
[pid 5689] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5689] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5689] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5689] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5689] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5689] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5689] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5689] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5689] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5689] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5689] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5689] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5689] getpid() = 5689
[pid 5689] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5689] exit_group(0) = ?
[pid 5689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5691 attached
, child_tidptr=0x55556a1446d0) = 5691
[pid 5691] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5691] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5691] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5691] setpgid(0, 0) = 0
[pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5691] write(3, "1000", 4) = 4
[pid 5691] close(3) = 0
[pid 5691] write(1, "executing program\n", 18) = 18
executing program
[pid 5691] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5691] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5691] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5691] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5691] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5691] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5691] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5691] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5691] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5691] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5691] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5691] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5691] getpid() = 5691
[pid 5691] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5691] exit_group(0) = ?
[pid 5691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5691, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5693 attached
, child_tidptr=0x55556a1446d0) = 5693
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5693] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5693] setpgid(0, 0) = 0
[pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5693] write(3, "1000", 4) = 4
[pid 5693] close(3) = 0
executing program
[pid 5693] write(1, "executing program\n", 18) = 18
[pid 5693] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5693] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5693] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5693] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5693] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5693] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5693] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5693] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5693] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5693] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5693] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5693] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5693] getpid() = 5693
[pid 5693] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5693] exit_group(0) = ?
[pid 5693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5695 attached
, child_tidptr=0x55556a1446d0) = 5695
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5695] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5695] setpgid(0, 0) = 0
[pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5695] write(3, "1000", 4) = 4
[pid 5695] close(3) = 0
executing program
[pid 5695] write(1, "executing program\n", 18) = 18
[pid 5695] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5695] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5695] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5695] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5695] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5695] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5695] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5695] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5695] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5695] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5695] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5695] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5695] getpid() = 5695
[pid 5695] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5695] exit_group(0) = ?
[pid 5695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5697 attached
, child_tidptr=0x55556a1446d0) = 5697
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5697] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5697] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5697] setpgid(0, 0) = 0
[pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5697] write(3, "1000", 4) = 4
[pid 5697] close(3) = 0
executing program
[pid 5697] write(1, "executing program\n", 18) = 18
[pid 5697] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5697] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5697] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5697] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5697] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5697] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5697] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5697] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5697] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5697] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5697] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5697] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5697] getpid() = 5697
[pid 5697] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5697] exit_group(0) = ?
[pid 5697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5697, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5699 attached
, child_tidptr=0x55556a1446d0) = 5699
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5699] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5699] setpgid(0, 0) = 0
[pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5699] write(3, "1000", 4) = 4
[pid 5699] close(3) = 0
executing program
[pid 5699] write(1, "executing program\n", 18) = 18
[pid 5699] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5699] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5699] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5699] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5699] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5699] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5699] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5699] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5699] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5699] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5699] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5699] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5699] getpid() = 5699
[pid 5699] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5699] exit_group(0) = ?
[pid 5699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5701 attached
[pid 5701] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5701
[pid 5701] <... set_robust_list resumed>) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5701] setpgid(0, 0) = 0
[pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5701] write(3, "1000", 4) = 4
[pid 5701] close(3) = 0
executing program
[pid 5701] write(1, "executing program\n", 18) = 18
[pid 5701] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5701] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5701] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5701] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5701] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5701] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5701] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5701] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5701] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5701] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5701] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5701] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5701] getpid() = 5701
[pid 5701] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5701] exit_group(0) = ?
[pid 5701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5703 attached
, child_tidptr=0x55556a1446d0) = 5703
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5703] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5703] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5703] setpgid(0, 0) = 0
[pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5703] write(3, "1000", 4) = 4
[pid 5703] close(3) = 0
[pid 5703] write(1, "executing program\n", 18) = 18
executing program
[pid 5703] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5703] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5703] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5703] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5703] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5703] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5703] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5703] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5703] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5703] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5703] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5703] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5703] getpid() = 5703
[pid 5703] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5703] exit_group(0) = ?
[pid 5703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5705 attached
, child_tidptr=0x55556a1446d0) = 5705
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5705] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5705] setpgid(0, 0) = 0
[pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5705] write(3, "1000", 4) = 4
[pid 5705] close(3) = 0
executing program
[pid 5705] write(1, "executing program\n", 18) = 18
[pid 5705] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5705] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5705] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5705] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5705] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5705] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5705] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5705] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5705] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5705] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5705] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5705] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5705] getpid() = 5705
[pid 5705] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5705] exit_group(0) = ?
[pid 5705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5707 attached
, child_tidptr=0x55556a1446d0) = 5707
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5707] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5707] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5707] setpgid(0, 0) = 0
[pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5707] write(3, "1000", 4) = 4
[pid 5707] close(3) = 0
[pid 5707] write(1, "executing program\n", 18) = 18
executing program
[pid 5707] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5707] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5707] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5707] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5707] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5707] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5707] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5707] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5707] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5707] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5707] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5707] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5707] getpid() = 5707
[pid 5707] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5707] exit_group(0) = ?
[pid 5707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5709 attached
, child_tidptr=0x55556a1446d0) = 5709
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5709] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5709] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5709] setpgid(0, 0) = 0
[pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5709] write(3, "1000", 4) = 4
[pid 5709] close(3) = 0
[pid 5709] write(1, "executing program\n", 18) = 18
executing program
[pid 5709] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5709] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5709] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5709] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5709] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5709] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5709] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5709] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5709] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5709] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5709] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5709] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5709] getpid() = 5709
[pid 5709] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5709] exit_group(0) = ?
[pid 5709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5711 attached
, child_tidptr=0x55556a1446d0) = 5711
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5711] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5711] setpgid(0, 0) = 0
[pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5711] write(3, "1000", 4) = 4
executing program
[pid 5711] close(3) = 0
[pid 5711] write(1, "executing program\n", 18) = 18
[pid 5711] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5711] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5711] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5711] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5711] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5711] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5711] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5711] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5711] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5711] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5711] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5711] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5711] getpid() = 5711
[pid 5711] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5711] exit_group(0) = ?
[pid 5711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5711, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5713 attached
, child_tidptr=0x55556a1446d0) = 5713
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5713] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5713] setpgid(0, 0) = 0
[pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5713] write(3, "1000", 4) = 4
[pid 5713] close(3) = 0
[pid 5713] write(1, "executing program\n", 18) = 18
executing program
[pid 5713] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5713] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5713] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5713] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5713] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5713] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5713] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5713] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5713] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5713] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5713] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5713] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5713] getpid() = 5713
[pid 5713] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5713] exit_group(0) = ?
[pid 5713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5715 attached
[pid 5715] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5715
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5715] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5715] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5715] setpgid(0, 0) = 0
[pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5715] write(3, "1000", 4) = 4
[pid 5715] close(3) = 0
[pid 5715] write(1, "executing program\n", 18) = 18
executing program
[pid 5715] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5715] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5715] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5715] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5715] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5715] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5715] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5715] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5715] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5715] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5715] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5715] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5715] getpid() = 5715
[pid 5715] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5715] exit_group(0) = ?
[pid 5715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5717 attached
, child_tidptr=0x55556a1446d0) = 5717
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5717] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5717] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5717] setpgid(0, 0) = 0
[pid 5717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5717] write(3, "1000", 4) = 4
[pid 5717] close(3) = 0
[pid 5717] write(1, "executing program\n", 18) = 18
executing program
[pid 5717] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5717] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5717] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5717] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5717] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5717] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5717] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5717] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5717] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5717] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5717] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5717] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5717] getpid() = 5717
[pid 5717] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5717] exit_group(0) = ?
[pid 5717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5717, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5719 attached
, child_tidptr=0x55556a1446d0) = 5719
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5719] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5719] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5719] setpgid(0, 0) = 0
[pid 5719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5719] write(3, "1000", 4) = 4
[pid 5719] close(3) = 0
[pid 5719] write(1, "executing program\n", 18) = 18
executing program
[pid 5719] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5719] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5719] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5719] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5719] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5719] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5719] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5719] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5719] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5719] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5719] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5719] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5719] getpid() = 5719
[pid 5719] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5719] exit_group(0) = ?
[pid 5719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5719, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5721 attached
, child_tidptr=0x55556a1446d0) = 5721
[pid 5721] set_robust_list(0x55556a1446e0, 24
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5721] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5721] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5721] setpgid(0, 0) = 0
[pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5721] write(3, "1000", 4) = 4
[pid 5721] close(3) = 0
[pid 5721] write(1, "executing program\n", 18) = 18
executing program
[pid 5721] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5721] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5721] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5721] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5721] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5721] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5721] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5721] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5721] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5721] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5721] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5721] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5721] getpid() = 5721
[pid 5721] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5721] exit_group(0) = ?
[pid 5721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5723 attached
, child_tidptr=0x55556a1446d0) = 5723
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5723] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5723] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5723] setpgid(0, 0) = 0
[pid 5723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5723] write(3, "1000", 4) = 4
[pid 5723] close(3) = 0
executing program
[pid 5723] write(1, "executing program\n", 18) = 18
[pid 5723] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5723] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5723] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5723] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5723] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5723] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5723] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5723] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5723] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5723] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5723] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5723] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5723] getpid() = 5723
[pid 5723] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5723] exit_group(0) = ?
[pid 5723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5723, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a1446d0) = 5725
ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5725 attached
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5725] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5725] <... set_robust_list resumed>) = 0
[pid 5725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5725] setpgid(0, 0) = 0
[pid 5725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5725] write(3, "1000", 4) = 4
[pid 5725] close(3) = 0
[pid 5725] write(1, "executing program\n", 18) = 18
executing program
[pid 5725] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5725] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5725] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5725] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5725] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5725] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5725] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5725] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5725] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5725] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5725] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5725] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5725] getpid() = 5725
[pid 5725] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5725] exit_group(0) = ?
[pid 5725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5725, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5727 attached
, child_tidptr=0x55556a1446d0) = 5727
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5727] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5727] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5727] setpgid(0, 0) = 0
[pid 5727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5727] write(3, "1000", 4) = 4
[pid 5727] close(3) = 0
[pid 5727] write(1, "executing program\n", 18) = 18
executing program
[pid 5727] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5727] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5727] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5727] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5727] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5727] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5727] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5727] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5727] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5727] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5727] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5727] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5727] getpid() = 5727
[pid 5727] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5727] exit_group(0) = ?
[pid 5727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5727, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5729 attached
, child_tidptr=0x55556a1446d0) = 5729
[pid 5729] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5729] setpgid(0, 0) = 0
[pid 5729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5729] write(3, "1000", 4) = 4
[pid 5729] close(3) = 0
executing program
[pid 5729] write(1, "executing program\n", 18) = 18
[pid 5729] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5729] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5729] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5729] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5729] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5729] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5729] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5729] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5729] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5729] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5729] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5729] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5729] getpid() = 5729
[pid 5729] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5729] exit_group(0) = ?
[pid 5729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5729, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5731 attached
, child_tidptr=0x55556a1446d0) = 5731
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5731] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5731] setpgid(0, 0) = 0
[pid 5731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5731] write(3, "1000", 4) = 4
[pid 5731] close(3) = 0
[pid 5731] write(1, "executing program\n", 18) = 18
executing program
[pid 5731] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5731] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5731] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5731] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5731] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5731] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5731] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5731] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5731] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5731] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5731] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5731] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5731] getpid() = 5731
[pid 5731] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5731] exit_group(0) = ?
[pid 5731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5731, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5733 attached
[pid 5733] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5733
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5733] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5733] setpgid(0, 0) = 0
[pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5733] write(3, "1000", 4) = 4
[pid 5733] close(3) = 0
executing program
[pid 5733] write(1, "executing program\n", 18) = 18
[pid 5733] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5733] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5733] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5733] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5733] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5733] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5733] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5733] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5733] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5733] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5733] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5733] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5733] getpid() = 5733
[pid 5733] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5733] exit_group(0) = ?
[pid 5733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5735 attached
, child_tidptr=0x55556a1446d0) = 5735
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5735] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5735] setpgid(0, 0) = 0
[pid 5735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5735] write(3, "1000", 4) = 4
[pid 5735] close(3) = 0
[pid 5735] write(1, "executing program\n", 18) = 18
executing program
[pid 5735] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5735] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5735] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5735] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5735] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5735] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5735] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5735] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5735] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5735] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5735] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5735] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5735] getpid() = 5735
[pid 5735] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5735] exit_group(0) = ?
[pid 5735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5735, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5737 attached
, child_tidptr=0x55556a1446d0) = 5737
[pid 5737] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5737] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5737] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5737] setpgid(0, 0) = 0
[pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5737] write(3, "1000", 4) = 4
[pid 5737] close(3) = 0
executing program
[pid 5737] write(1, "executing program\n", 18) = 18
[pid 5737] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5737] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5737] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5737] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5737] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5737] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5737] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5737] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5737] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5737] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5737] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5737] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5737] getpid() = 5737
[pid 5737] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5737] exit_group(0) = ?
[pid 5737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5739 attached
, child_tidptr=0x55556a1446d0) = 5739
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5739] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5739] setpgid(0, 0) = 0
[pid 5739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5739] write(3, "1000", 4) = 4
[pid 5739] close(3) = 0
[pid 5739] write(1, "executing program\n", 18) = 18
executing program
[pid 5739] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5739] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5739] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5739] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5739] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5739] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5739] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5739] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5739] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5739] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5739] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5739] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5739] getpid() = 5739
[pid 5739] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5739] exit_group(0) = ?
[pid 5739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5739, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5741 attached
, child_tidptr=0x55556a1446d0) = 5741
[pid 5741] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5741] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5741] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5741] setpgid(0, 0) = 0
[pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5741] write(3, "1000", 4) = 4
[pid 5741] close(3) = 0
executing program
[pid 5741] write(1, "executing program\n", 18) = 18
[pid 5741] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5741] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5741] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5741] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5741] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5741] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5741] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5741] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5741] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5741] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5741] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5741] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5741] getpid() = 5741
[pid 5741] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5741] exit_group(0) = ?
[pid 5741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5743 attached
, child_tidptr=0x55556a1446d0) = 5743
[pid 5743] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5743] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5743] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5743] <... prctl resumed>) = 0
[pid 5743] setpgid(0, 0) = 0
[pid 5743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5743] write(3, "1000", 4) = 4
[pid 5743] close(3) = 0
executing program
[pid 5743] write(1, "executing program\n", 18) = 18
[pid 5743] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5743] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5743] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5743] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5743] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5743] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5743] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5743] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5743] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5743] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5743] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5743] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5743] getpid() = 5743
[pid 5743] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5743] exit_group(0) = ?
[pid 5743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5743, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5745 attached
[pid 5745] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5745
[pid 5745] <... set_robust_list resumed>) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5745] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5745] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5745] setpgid(0, 0) = 0
[pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5745] write(3, "1000", 4) = 4
[pid 5745] close(3) = 0
[pid 5745] write(1, "executing program\n", 18) = 18
executing program
[pid 5745] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5745] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5745] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5745] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5745] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5745] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5745] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5745] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5745] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5745] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5745] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5745] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5745] getpid() = 5745
[pid 5745] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5745] exit_group(0) = ?
[pid 5745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5747 attached
, child_tidptr=0x55556a1446d0) = 5747
[pid 5747] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5747] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5747] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5747] setpgid(0, 0) = 0
[pid 5747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5747] write(3, "1000", 4) = 4
[pid 5747] close(3) = 0
[pid 5747] write(1, "executing program\n", 18) = 18
executing program
[pid 5747] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5747] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5747] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5747] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5747] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5747] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5747] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5747] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5747] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5747] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5747] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5747] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5747] getpid() = 5747
[pid 5747] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5747] exit_group(0) = ?
[pid 5747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5747, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a1446d0) = 5749
ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5749 attached
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5749] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5749] setpgid(0, 0) = 0
[pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5749] write(3, "1000", 4) = 4
[pid 5749] close(3) = 0
executing program
[pid 5749] write(1, "executing program\n", 18) = 18
[pid 5749] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5749] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5749] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5749] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5749] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5749] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5749] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5749] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5749] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5749] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5749] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5749] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5749] getpid() = 5749
[pid 5749] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5749] exit_group(0) = ?
[pid 5749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5751 attached
[pid 5751] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5751
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5751] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5751] setpgid(0, 0) = 0
[pid 5751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5751] write(3, "1000", 4) = 4
[pid 5751] close(3) = 0
[pid 5751] write(1, "executing program\n", 18) = 18
executing program
[pid 5751] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5751] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5751] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5751] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5751] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5751] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5751] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5751] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5751] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5751] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5751] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5751] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5751] getpid() = 5751
[pid 5751] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5751] exit_group(0) = ?
[pid 5751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5751, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a1446d0) = 5753
rt_sigprocmask(SIG_SETMASK, []ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5753 attached
, NULL, 8) = 0
[pid 5753] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5753] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5753] setpgid(0, 0) = 0
[pid 5753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5753] write(3, "1000", 4) = 4
[pid 5753] close(3) = 0
[pid 5753] write(1, "executing program\n", 18) = 18
executing program
[pid 5753] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5753] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5753] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5753] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5753] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5753] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5753] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5753] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5753] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5753] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5753] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5753] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5753] getpid() = 5753
[pid 5753] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5753] exit_group(0) = ?
[pid 5753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5753, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5755 attached
, child_tidptr=0x55556a1446d0) = 5755
[pid 5755] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5755] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5755] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5755] setpgid(0, 0) = 0
[pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5755] write(3, "1000", 4) = 4
[pid 5755] close(3) = 0
[pid 5755] write(1, "executing program\n", 18) = 18
executing program
[pid 5755] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5755] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5755] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5755] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5755] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5755] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5755] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5755] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5755] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5755] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5755] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5755] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5755] getpid() = 5755
[pid 5755] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5755] exit_group(0) = ?
[pid 5755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5757 attached
, child_tidptr=0x55556a1446d0) = 5757
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5757] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5757] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5757] setpgid(0, 0) = 0
[pid 5757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5757] write(3, "1000", 4) = 4
[pid 5757] close(3) = 0
[pid 5757] write(1, "executing program\n", 18) = 18
executing program
[pid 5757] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5757] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5757] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5757] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5757] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5757] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5757] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5757] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5757] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5757] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5757] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5757] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5757] getpid() = 5757
[pid 5757] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5757] exit_group(0) = ?
[pid 5757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5757, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5759 attached
, child_tidptr=0x55556a1446d0) = 5759
[pid 5759] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5759] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5759] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5759] setpgid(0, 0) = 0
[pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5759] write(3, "1000", 4) = 4
[pid 5759] close(3) = 0
[pid 5759] write(1, "executing program\n", 18) = 18
executing program
[pid 5759] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5759] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5759] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5759] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5759] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5759] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5759] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5759] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5759] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5759] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5759] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5759] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5759] getpid() = 5759
[pid 5759] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5759] exit_group(0) = ?
[pid 5759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5761 attached
, child_tidptr=0x55556a1446d0) = 5761
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5761] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5761] setpgid(0, 0) = 0
[pid 5761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5761] write(3, "1000", 4) = 4
[pid 5761] close(3) = 0
executing program
[pid 5761] write(1, "executing program\n", 18) = 18
[pid 5761] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5761] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5761] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5761] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5761] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5761] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5761] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5761] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5761] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5761] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5761] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5761] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5761] getpid() = 5761
[pid 5761] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5761] exit_group(0) = ?
[pid 5761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5761, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a1446d0) = 5763
ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5763 attached
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5763] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5763] setpgid(0, 0) = 0
[pid 5763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5763] write(3, "1000", 4) = 4
[pid 5763] close(3) = 0
executing program
[pid 5763] write(1, "executing program\n", 18) = 18
[pid 5763] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5763] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5763] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5763] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5763] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5763] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5763] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5763] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5763] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5763] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5763] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5763] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5763] getpid() = 5763
[pid 5763] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5763] exit_group(0) = ?
[pid 5763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5763, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5765 attached
, child_tidptr=0x55556a1446d0) = 5765
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5765] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5765] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5765] setpgid(0, 0) = 0
[pid 5765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 5765] write(3, "1000", 4) = 4
[pid 5765] close(3) = 0
[pid 5765] write(1, "executing program\n", 18) = 18
[pid 5765] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5765] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5765] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5765] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5765] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5765] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5765] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5765] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5765] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5765] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5765] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5765] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5765] getpid() = 5765
[pid 5765] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5765] exit_group(0) = ?
[pid 5765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5765, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5767 attached
, child_tidptr=0x55556a1446d0) = 5767
[pid 5767] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5767] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5767] setpgid(0, 0) = 0
[pid 5767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5767] write(3, "1000", 4) = 4
[pid 5767] close(3) = 0
[pid 5767] write(1, "executing program\n", 18) = 18
executing program
[pid 5767] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5767] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5767] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5767] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5767] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5767] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5767] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5767] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5767] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5767] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5767] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5767] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5767] getpid() = 5767
[pid 5767] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5767] exit_group(0) = ?
[pid 5767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5767, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5769 attached
[pid 5769] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5769
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5769] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5769] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5769] setpgid(0, 0) = 0
[pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5769] write(3, "1000", 4) = 4
executing program
[pid 5769] close(3) = 0
[pid 5769] write(1, "executing program\n", 18) = 18
[pid 5769] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5769] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5769] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5769] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5769] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5769] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5769] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5769] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5769] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5769] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5769] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5769] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5769] getpid() = 5769
[pid 5769] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5769] exit_group(0) = ?
[pid 5769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a1446d0) = 5771
ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5771 attached
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5771] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5771] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5771] setpgid(0, 0) = 0
[pid 5771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5771] write(3, "1000", 4) = 4
[pid 5771] close(3) = 0
executing program
[pid 5771] write(1, "executing program\n", 18) = 18
[pid 5771] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5771] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5771] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5771] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5771] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5771] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5771] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5771] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5771] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5771] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5771] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5771] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5771] getpid() = 5771
[pid 5771] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5771] exit_group(0) = ?
[pid 5771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5771, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5773 attached
, child_tidptr=0x55556a1446d0) = 5773
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5773] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5773] setpgid(0, 0) = 0
[pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5773] write(3, "1000", 4) = 4
[pid 5773] close(3) = 0
executing program
[pid 5773] write(1, "executing program\n", 18) = 18
[pid 5773] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5773] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5773] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5773] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5773] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5773] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5773] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5773] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5773] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5773] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5773] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5773] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5773] getpid() = 5773
[pid 5773] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5773] exit_group(0) = ?
[pid 5773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5775 attached
, child_tidptr=0x55556a1446d0) = 5775
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5775] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5775] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5775] setpgid(0, 0) = 0
[pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5775] write(3, "1000", 4) = 4
[pid 5775] close(3) = 0
[pid 5775] write(1, "executing program\n", 18) = 18
executing program
[pid 5775] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5775] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5775] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5775] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5775] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5775] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5775] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5775] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5775] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5775] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5775] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5775] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5775] getpid() = 5775
[pid 5775] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5775] exit_group(0) = ?
[pid 5775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5775, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5777 attached
[pid 5777] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5777
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5777] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5777] setpgid(0, 0) = 0
[pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5777] write(3, "1000", 4) = 4
[pid 5777] close(3) = 0
executing program
[pid 5777] write(1, "executing program\n", 18) = 18
[pid 5777] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5777] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5777] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5777] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5777] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5777] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5777] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5777] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5777] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5777] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5777] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5777] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5777] getpid() = 5777
[pid 5777] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5777] exit_group(0) = ?
[pid 5777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5779 attached
[pid 5779] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5779
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5779] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5779] setpgid(0, 0) = 0
[pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5779] write(3, "1000", 4) = 4
[pid 5779] close(3) = 0
executing program
[pid 5779] write(1, "executing program\n", 18) = 18
[pid 5779] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5779] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5779] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5779] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5779] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5779] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5779] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5779] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5779] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5779] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5779] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5779] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5779] getpid() = 5779
[pid 5779] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5779] exit_group(0) = ?
[pid 5779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5781 attached
, child_tidptr=0x55556a1446d0) = 5781
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5781] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5781] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5781] setpgid(0, 0) = 0
[pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5781] write(3, "1000", 4) = 4
[pid 5781] close(3) = 0
[pid 5781] write(1, "executing program\n", 18) = 18
executing program
[pid 5781] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5781] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5781] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5781] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5781] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5781] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5781] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5781] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5781] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5781] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5781] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5781] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5781] getpid() = 5781
[pid 5781] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5781] exit_group(0) = ?
[pid 5781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5783 attached
, child_tidptr=0x55556a1446d0) = 5783
[pid 5783] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5783] setpgid(0, 0) = 0
[pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5783] write(3, "1000", 4) = 4
[pid 5783] close(3) = 0
executing program
[pid 5783] write(1, "executing program\n", 18) = 18
[pid 5783] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5783] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5783] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5783] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5783] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5783] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5783] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5783] openat(AT_FDCWD, "/dev/ublkc5", O_RDWR) = 5
[pid 5783] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5783] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5783] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5783] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5783] getpid() = 5783
[pid 5783] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5783] exit_group(0) = ?
[pid 5783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5785 attached
, child_tidptr=0x55556a1446d0) = 5785
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5785] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5785] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5785] setpgid(0, 0) = 0
[pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5785] write(3, "1000", 4) = 4
[pid 5785] close(3) = 0
[pid 5785] write(1, "executing program\n", 18) = 18
executing program
[pid 5785] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5785] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5785] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5785] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5785] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5785] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5785] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5785] openat(AT_FDCWD, "/dev/ublkc6", O_RDWR) = 5
[pid 5785] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5785] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5785] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5785] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5785] getpid() = 5785
[pid 5785] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5785] exit_group(0) = ?
[pid 5785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5785, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5787 attached
, child_tidptr=0x55556a1446d0) = 5787
[pid 5787] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5787] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5787] setpgid(0, 0) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5787] <... openat resumed>) = 3
[pid 5787] write(3, "1000", 4) = 4
[pid 5787] close(3) = 0
[pid 5787] write(1, "executing program\n", 18) = 18
executing program
[pid 5787] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5787] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5787] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5787] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5787] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5787] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5787] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5787] openat(AT_FDCWD, "/dev/ublkc7", O_RDWR) = 5
[pid 5787] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5787] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5787] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5787] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5787] getpid() = 5787
[pid 5787] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5787] exit_group(0) = ?
[pid 5787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5789 attached
, child_tidptr=0x55556a1446d0) = 5789
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5789] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5789] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5789] setpgid(0, 0) = 0
[pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5789] write(3, "1000", 4) = 4
[pid 5789] close(3) = 0
[pid 5789] write(1, "executing program\n", 18) = 18
executing program
[pid 5789] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5789] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5789] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5789] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5789] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5789] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5789] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5789] openat(AT_FDCWD, "/dev/ublkc8", O_RDWR) = 5
[pid 5789] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5789] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5789] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5789] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5789] getpid() = 5789
[pid 5789] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5789] exit_group(0) = ?
[pid 5789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5791 attached
, child_tidptr=0x55556a1446d0) = 5791
[pid 5791] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5791] rt_sigprocmask(SIG_SETMASK, []
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5791] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5791] setpgid(0, 0) = 0
[pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5791] write(3, "1000", 4) = 4
[pid 5791] close(3) = 0
executing program
[pid 5791] write(1, "executing program\n", 18) = 18
[pid 5791] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5791] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5791] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5791] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5791] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5791] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5791] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5791] openat(AT_FDCWD, "/dev/ublkc9", O_RDWR) = 5
[pid 5791] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5791] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5791] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5791] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5791] getpid() = 5791
[pid 5791] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5791] exit_group(0) = ?
[pid 5791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5793 attached
, child_tidptr=0x55556a1446d0) = 5793
[pid 5793] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5793] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5793] setpgid(0, 0) = 0
[pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5793] write(3, "1000", 4) = 4
[pid 5793] close(3) = 0
[pid 5793] write(1, "executing program\n", 18) = 18
[pid 5793] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
executing program
[pid 5793] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5793] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5793] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5793] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5793] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5793] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5793] openat(AT_FDCWD, "/dev/ublkc0", O_RDWR) = 5
[pid 5793] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5793] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5793] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5793] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5793] getpid() = 5793
[pid 5793] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5793] exit_group(0) = ?
[pid 5793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5793, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a1446d0) = 5795
ci-upstream-kasan-gce-root/strace-static-x86_64: Process 5795 attached
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5795] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5795] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5795] setpgid(0, 0) = 0
[pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5795] write(3, "1000", 4) = 4
[pid 5795] close(3) = 0
[pid 5795] write(1, "executing program\n", 18) = 18
executing program
[pid 5795] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5795] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5795] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5795] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5795] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5795] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5795] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5795] openat(AT_FDCWD, "/dev/ublkc1", O_RDWR) = 5
[pid 5795] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5795] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5795] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5795] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5795] getpid() = 5795
[pid 5795] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5795] exit_group(0) = ?
[pid 5795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5797 attached
[pid 5797] set_robust_list(0x55556a1446e0, 24
[pid 5630] <... clone resumed>, child_tidptr=0x55556a1446d0) = 5797
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5797] <... set_robust_list resumed>) = 0
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5797] setpgid(0, 0) = 0
[pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5797] write(3, "1000", 4) = 4
[pid 5797] close(3) = 0
executing program
[pid 5797] write(1, "executing program\n", 18) = 18
[pid 5797] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5797] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5797] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5797] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5797] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5797] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5797] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5797] openat(AT_FDCWD, "/dev/ublkc2", O_RDWR) = 5
[pid 5797] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5797] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5797] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5797] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5797] getpid() = 5797
[pid 5797] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5797] exit_group(0) = ?
[pid 5797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5799 attached
, child_tidptr=0x55556a1446d0) = 5799
[pid 5799] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5799] setpgid(0, 0) = 0
[pid 5630] rt_sigprocmask(SIG_SETMASK, []
[pid 5799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid 5799] <... openat resumed>) = 3
[pid 5799] write(3, "1000", 4) = 4
[pid 5799] close(3) = 0
[pid 5799] write(1, "executing program\n", 18) = 18
[pid 5799] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
executing program
[pid 5799] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5799] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5799] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5799] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5799] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5799] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5799] openat(AT_FDCWD, "/dev/ublkc3", O_RDWR) = 5
[pid 5799] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5799] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5799] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5799] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5799] getpid() = 5799
[pid 5799] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5799] exit_group(0) = ?
[pid 5799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5799, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-root/strace-static-x86_64: Process 5801 attached
, child_tidptr=0x55556a1446d0) = 5801
[pid 5630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5801] set_robust_list(0x55556a1446e0, 24) = 0
[pid 5801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5801] setpgid(0, 0) = 0
[pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5801] write(3, "1000", 4) = 4
[pid 5801] close(3) = 0
executing program
[pid 5801] write(1, "executing program\n", 18) = 18
[pid 5801] openat(AT_FDCWD, "/dev/ublk-control", O_RDWR) = 3
[pid 5801] io_uring_setup(32, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=32, cq_entries=64, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=2176, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 4
[pid 5801] mmap(NULL, 2304, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0) = 0x7f6413f8d000
[pid 5801] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 4, 0x10000000) = 0x7f6413f8c000
[pid 5801] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 8) = 1
[pid 5801] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 0
[pid 5801] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5801] openat(AT_FDCWD, "/dev/ublkc4", O_RDWR) = 5
[pid 5801] io_uring_setup(4, {flags=IORING_SETUP_SQE128|IORING_SETUP_CQE32, sq_thread_cpu=0, sq_thread_idle=0, sq_entries=4, cq_entries=8, features=IORING_FEAT_SINGLE_MMAP|IORING_FEAT_NODROP|IORING_FEAT_SUBMIT_STABLE|IORING_FEAT_RW_CUR_POS|IORING_FEAT_CUR_PERSONALITY|IORING_FEAT_FAST_POLL|IORING_FEAT_POLL_32BITS|IORING_FEAT_SQPOLL_NONFIXED|IORING_FEAT_EXT_ARG|IORING_FEAT_NATIVE_WORKERS|IORING_FEAT_RSRC_TAGS|IORING_FEAT_CQE_SKIP|IORING_FEAT_LINKED_FILE|IORING_FEAT_REG_REG_RING|IORING_FEAT_RECVSEND_BUNDLE|IORING_FEAT_MIN_TIMEOUT|IORING_FEAT_RW_ATTR|IORING_FEAT_NO_IOWAIT, sq_off={head=0, tail=4, ring_mask=16, ring_entries=24, flags=36, dropped=32, array=384, user_addr=0}, cq_off={head=8, tail=12, ring_mask=20, ring_entries=28, overflow=44, cqes=64, flags=40, user_addr=0}}) = 6
[pid 5801] mmap(NULL, 400, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0) = 0x7f6413f8b000
[pid 5801] mmap(NULL, 512, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_POPULATE, 6, 0x10000000) = 0x7f6413f8a000
[pid 5801] mmap(NULL, 4096, PROT_READ, MAP_SHARED|MAP_POPULATE, 5, 0) = -1 EINVAL (Invalid argument)
[pid 5801] getpid() = 5801
[pid 5801] io_uring_enter(4, 1, 1, IORING_ENTER_GETEVENTS, NULL, 0) = 1
[pid 5801] exit_group(0) = ?