./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor55138855
<...>
Warning: Permanently added '10.128.1.32' (ED25519) to the list of known hosts.
execve("./syz-executor55138855", ["./syz-executor55138855"], 0x7fffb9a74e80 /* 10 vars */) = 0
brk(NULL) = 0x55557ef05000
brk(0x55557ef05e00) = 0x55557ef05e00
arch_prctl(ARCH_SET_FS, 0x55557ef05480) = 0
set_tid_address(0x55557ef05750) = 5823
set_robust_list(0x55557ef05760, 24) = 0
rseq(0x55557ef05da0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor55138855", 4096) = 26
getrandom("\xfc\xd4\xcd\xc8\xd8\x46\x10\x8a", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55557ef05e00
brk(0x55557ef26e00) = 0x55557ef26e00
brk(0x55557ef27000) = 0x55557ef27000
mprotect(0x7f3038260000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f30381a5d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f30381a5d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5824 attached
<unfinished ...>
[pid 5824] set_robust_list(0x55557ef05760, 24) = 0
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5824
[pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5824] setpgid(0, 0) = 0
[pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5824] write(3, "1000", 4) = 4
[pid 5824] close(3) = 0
[pid 5824] write(1, "executing program\n", 18executing program
) = 18
[pid 5824] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5824] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5824] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5826 attached
<unfinished ...>
[pid 5826] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5824] <... clone3 resumed> => {parent_tid=[5826]}, 88) = 5826
[pid 5826] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5824] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5826] <... set_robust_list resumed>) = 0
[pid 5824] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5826] memfd_create("syzkaller", 0) = 3
[pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5826] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5826] munmap(0x7f302fc00000, 138412032) = 0
[pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5826] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5826] close(3) = 0
[pid 5826] close(4) = 0
[pid 5826] mkdir("./file1", 0777) = 0
[pid 5826] mount("/dev/loop0", "./file1", "hfsplus", MS_SILENT|MS_RELATIME, "nls=cp950,nobarrier,force,umask=00000000000000000001000,") = 0
[pid 5826] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5826] chdir("./file1") = 0
[pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 75.112920][ T5826] loop0: detected capacity change from 0 to 1024
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5826] <... openat resumed>) = 4
[pid 5824] <... futex resumed>) = 0
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5826] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5824] <... futex resumed>) = 0
[pid 5826] <... mknodat resumed>) = 0
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5824] <... futex resumed>) = 0
[pid 5826] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] <... linkat resumed>) = -1 ENOMEM (Cannot allocate memory)
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5824] <... futex resumed>) = 0
[pid 5826] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] <... openat resumed>) = -1 ENOMEM (Cannot allocate memory)
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5826] <... futex resumed>) = 0
[pid 5824] <... futex resumed>) = 1
[pid 5826] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[ 75.212254][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.219913][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.230573][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.238015][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.249475][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] <... openat resumed>) = -1 ENOMEM (Cannot allocate memory)
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5826] <... futex resumed>) = 0
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 ENOMEM (Cannot allocate memory)
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5826] <... futex resumed>) = 0
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] openat(AT_FDCWD, ".", O_RDONLY) = 5
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5826] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5824] <... futex resumed>) = 0
[ 75.256885][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.274336][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.281810][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] <... openat resumed>) = -1 ENOMEM (Cannot allocate memory)
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5824] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[ 75.307550][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.314979][ T5826] hfsplus: request for non-existent node 33423360 in B*Tree
[ 75.344939][ T5826]
[ 75.347297][ T5826] ============================================
[ 75.353437][ T5826] WARNING: possible recursive locking detected
[pid 5824] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5826] openat(5, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5824] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
[ 75.359582][ T5826] 6.13.0-rc7-syzkaller #0 Not tainted
[ 75.364945][ T5826] --------------------------------------------
[ 75.371084][ T5826] syz-executor551/5826 is trying to acquire lock:
[ 75.377483][ T5826] ffff88807f6f1548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_get_block+0x383/0x14f0
[ 75.388388][ T5826]
[ 75.388388][ T5826] but task is already holding lock:
[ 75.395750][ T5826] ffff88807f6f07c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x21b/0x1b70
[ 75.406809][ T5826]
[ 75.406809][ T5826] other info that might help us debug this:
[ 75.414872][ T5826] Possible unsafe locking scenario:
[ 75.414872][ T5826]
[ 75.422317][ T5826] CPU0
[ 75.425591][ T5826] ----
[ 75.428866][ T5826] lock(&HFSPLUS_I(inode)->extents_lock);
[ 75.434673][ T5826] lock(&HFSPLUS_I(inode)->extents_lock);
[ 75.440483][ T5826]
[ 75.440483][ T5826] *** DEADLOCK ***
[ 75.440483][ T5826]
[ 75.448621][ T5826] May be due to missing lock nesting notation
[ 75.448621][ T5826]
[ 75.456938][ T5826] 6 locks held by syz-executor551/5826:
[ 75.462480][ T5826] #0: ffff88807a74c420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
[ 75.471643][ T5826] #1: ffff88807f6f1df8 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: path_openat+0x89a/0x3590
[ 75.481843][ T5826] #2: ffff888143bef198 (&sbi->vh_mutex){+.+.}-{4:4}, at: hfsplus_mknod+0x7e/0x2a0
[ 75.491356][ T5826] #3: ffff88807fc320b0 (&tree->tree_lock){+.+.}-{4:4}, at: hfsplus_find_init+0x14a/0x1c0
[ 75.501308][ T5826] #4: ffff88807f6f07c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x21b/0x1b70
[ 75.512814][ T5826] #5: ffff888143bef0f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_allocate+0x9e/0x8c0
[ 75.523207][ T5826]
[ 75.523207][ T5826] stack backtrace:
[ 75.529106][ T5826] CPU: 0 UID: 0 PID: 5826 Comm: syz-executor551 Not tainted 6.13.0-rc7-syzkaller #0
[ 75.538481][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 75.548552][ T5826] Call Trace:
[ 75.551832][ T5826] <TASK>
[ 75.554768][ T5826] dump_stack_lvl+0x241/0x360
[ 75.559542][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10
[ 75.564764][ T5826] ? __pfx__printk+0x10/0x10
[ 75.569364][ T5826] ? lockdep_unlock+0x16a/0x300
[ 75.574219][ T5826] print_deadlock_bug+0x483/0x620
[ 75.579258][ T5826] validate_chain+0x15e2/0x5920
[ 75.584114][ T5826] ? kernel_text_address+0xa7/0xe0
[ 75.589242][ T5826] ? stack_trace_save+0x118/0x1d0
[ 75.594276][ T5826] ? __pfx_validate_chain+0x10/0x10
[ 75.599485][ T5826] ? __pfx_stack_trace_save+0x10/0x10
[ 75.604870][ T5826] ? check_noncircular+0x259/0x4a0
[ 75.609993][ T5826] ? __pfx_check_noncircular+0x10/0x10
[ 75.615458][ T5826] ? lockdep_unlock+0x16a/0x300
[ 75.620309][ T5826] ? look_up_lock_class+0x77/0x170
[ 75.625438][ T5826] ? register_lock_class+0x102/0x980
[ 75.630724][ T5826] ? add_lock_to_list+0x1e8/0x2f0
[ 75.635754][ T5826] ? __pfx_register_lock_class+0x10/0x10
[ 75.641385][ T5826] ? validate_chain+0x15c0/0x5920
[ 75.646412][ T5826] ? is_bpf_text_address+0x26/0x2a0
[ 75.651615][ T5826] ? mark_lock+0x9a/0x360
[ 75.655947][ T5826] __lock_acquire+0x1397/0x2100
[ 75.660805][ T5826] lock_acquire+0x1ed/0x550
[ 75.665308][ T5826] ? hfsplus_get_block+0x383/0x14f0
[ 75.670511][ T5826] ? __pfx_lock_acquire+0x10/0x10
[ 75.675535][ T5826] ? __pfx___might_resched+0x10/0x10
[ 75.680824][ T5826] ? register_lock_class+0x102/0x980
[ 75.686118][ T5826] ? create_empty_buffers+0x3a/0x530
[ 75.691408][ T5826] ? __pfx_register_lock_class+0x10/0x10
[ 75.697040][ T5826] ? read_cache_page+0x5b/0x170
[ 75.701893][ T5826] ? hfsplus_file_extend+0xade/0x1b70
[ 75.707277][ T5826] __mutex_lock+0x1ac/0xee0
[ 75.711794][ T5826] ? hfsplus_get_block+0x383/0x14f0
[ 75.716998][ T5826] ? __lock_acquire+0x1397/0x2100
[ 75.722062][ T5826] ? hfsplus_get_block+0x383/0x14f0
[ 75.727283][ T5826] ? __pfx___mutex_lock+0x10/0x10
[ 75.732347][ T5826] hfsplus_get_block+0x383/0x14f0
[ 75.737405][ T5826] ? __pfx_hfsplus_get_block+0x10/0x10
[ 75.742875][ T5826] ? _raw_spin_unlock+0x28/0x50
[ 75.747762][ T5826] ? create_empty_buffers+0x471/0x530
[ 75.753178][ T5826] block_read_full_folio+0x3ee/0xae0
[ 75.758480][ T5826] ? __pfx_hfsplus_get_block+0x10/0x10
[ 75.763955][ T5826] ? __pfx_block_read_full_folio+0x10/0x10
[ 75.769787][ T5826] ? folio_add_lru+0x187/0x230
[ 75.774563][ T5826] filemap_read_folio+0x148/0x3b0
[ 75.779588][ T5826] ? __pfx_hfsplus_read_folio+0x10/0x10
[ 75.785138][ T5826] ? __pfx_filemap_read_folio+0x10/0x10
[ 75.790715][ T5826] ? __filemap_get_folio+0x848/0x940
[ 75.796012][ T5826] do_read_cache_folio+0x373/0x5b0
[ 75.801130][ T5826] ? __pfx_hfsplus_read_folio+0x10/0x10
[ 75.806692][ T5826] ? hfsplus_file_extend+0x21b/0x1b70
[ 75.812071][ T5826] read_cache_page+0x5b/0x170
[ 75.816750][ T5826] hfsplus_block_allocate+0xee/0x8c0
[ 75.822064][ T5826] hfsplus_file_extend+0xade/0x1b70
[ 75.827276][ T5826] ? __pfx_hfsplus_file_extend+0x10/0x10
[ 75.832933][ T5826] ? __mutex_lock+0x37f/0xee0
[ 75.837651][ T5826] ? hfsplus_find_init+0x14a/0x1c0
[ 75.842771][ T5826] ? __pfx___mutex_lock+0x10/0x10
[ 75.847809][ T5826] hfsplus_bmap_reserve+0x105/0x4e0
[ 75.853113][ T5826] hfsplus_create_cat+0x1b0/0x1b70
[ 75.858231][ T5826] ? __lock_acquire+0x1397/0x2100
[ 75.863262][ T5826] ? __pfx_hfsplus_create_cat+0x10/0x10
[ 75.868834][ T5826] ? do_raw_spin_unlock+0x13c/0x8b0
[ 75.874042][ T5826] ? _raw_spin_unlock+0x28/0x50
[ 75.878900][ T5826] hfsplus_mknod+0x16a/0x2a0
[ 75.883497][ T5826] ? __pfx_hfsplus_create+0x10/0x10
[ 75.888699][ T5826] path_openat+0x1c03/0x3590
[ 75.893308][ T5826] ? __pfx_path_openat+0x10/0x10
[ 75.898253][ T5826] do_filp_open+0x27f/0x4e0
[ 75.902762][ T5826] ? __pfx_do_filp_open+0x10/0x10
[ 75.907794][ T5826] ? do_raw_spin_lock+0x14f/0x370
[ 75.912840][ T5826] do_sys_openat2+0x13e/0x1d0
[ 75.917522][ T5826] ? __pfx_do_sys_openat2+0x10/0x10
[ 75.922723][ T5826] ? lockdep_hardirqs_on+0x99/0x150
[ 75.927926][ T5826] ? _raw_spin_unlock_irq+0x2e/0x50
[ 75.933128][ T5826] ? ptrace_notify+0x279/0x380
[ 75.937902][ T5826] __x64_sys_openat+0x247/0x2a0
[ 75.942767][ T5826] ? __pfx___x64_sys_openat+0x10/0x10
[ 75.948159][ T5826] ? do_syscall_64+0x100/0x230
[ 75.952957][ T5826] do_syscall_64+0xf3/0x230
[ 75.957494][ T5826] ? clear_bhb_loop+0x35/0x90
[ 75.962196][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.968111][ T5826] RIP: 0033:0x7f30381df009
[ 75.972528][ T5826] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[ 75.992140][ T5826] RSP: 002b:00007f3038195168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 76.000570][ T5826] RAX: ffffffffffffffda RBX: 00007f30382666c8 RCX: 00007f30381df009
[pid 5826] <... openat resumed>) = -1 ENOSPC (No space left on device)
[pid 5826] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5826] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] exit_group(0 <unfinished ...>
[pid 5826] <... futex resumed>) = ?
[pid 5824] <... exit_group resumed>) = ?
[pid 5826] +++ exited with 0 +++
[pid 5824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5824, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5827
./strace-static-x86_64: Process 5827 attached
[pid 5827] set_robust_list(0x55557ef05760, 24) = 0
[pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 76.008557][ T5826] RDX: 000000000000275a RSI: 0000000020000080 RDI: 0000000000000005
[ 76.016547][ T5826] RBP: 00007f30382666c0 R08: 00007f30381956c0 R09: 0000000000000000
[ 76.024522][ T5826] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f30382666cc
[ 76.032497][ T5826] R13: 0000000000000006 R14: 00007ffe7c2e3e90 R15: 00007ffe7c2e3f78
[ 76.040475][ T5826] </TASK>
[pid 5827] setpgid(0, 0) = 0
[pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5827] write(3, "1000", 4) = 4
[pid 5827] close(3) = 0
[pid 5827] write(1, "executing program\n", 18executing program
) = 18
[pid 5827] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5827] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5827] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5827] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5827] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5827] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5828 attached
<unfinished ...>
[pid 5828] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5827] <... clone3 resumed> => {parent_tid=[5828]}, 88) = 5828
[pid 5828] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5828] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... futex resumed>) = 0
[pid 5827] <... futex resumed>) = 1
[pid 5828] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... memfd_create resumed>) = 3
[pid 5828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5828] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5828] munmap(0x7f302fc00000, 138412032) = 0
[pid 5828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5828] close(3) = 0
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... openat resumed>) = 3
[pid 5827] <... futex resumed>) = 0
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5827] <... futex resumed>) = 0
[pid 5828] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... mknodat resumed>) = 0
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... futex resumed>) = 0
[pid 5827] <... futex resumed>) = 1
[pid 5828] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... linkat resumed>) = 0
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5827] <... futex resumed>) = 0
[pid 5828] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... openat resumed>) = 4
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5828] <... futex resumed>) = 0
[pid 5828] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... openat resumed>) = 5
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5827] <... futex resumed>) = 0
[pid 5828] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... openat resumed>) = 6
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... futex resumed>) = 0
[pid 5828] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5827] <... futex resumed>) = 1
[pid 5828] <... openat resumed>) = 7
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] <... openat resumed>) = 8
[pid 5827] <... futex resumed>) = 0
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5828] <... futex resumed>) = 0
[pid 5827] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5828] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5827] <... futex resumed>) = 0
[pid 5827] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5828] <... openat resumed>) = 9
[pid 5828] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5827] <... futex resumed>) = 0
[pid 5828] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5827] exit_group(0 <unfinished ...>
[pid 5828] <... futex resumed>) = ?
[pid 5827] <... exit_group resumed>) = ?
[pid 5828] +++ exited with 0 +++
[pid 5827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5829
./strace-static-x86_64: Process 5829 attached
[pid 5829] set_robust_list(0x55557ef05760, 24) = 0
[pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5829] setpgid(0, 0) = 0
[pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5829] write(3, "1000", 4) = 4
[pid 5829] close(3) = 0
executing program
[pid 5829] write(1, "executing program\n", 18) = 18
[pid 5829] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5829] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5829] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5829] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5829] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5829] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5829] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5830 attached
<unfinished ...>
[pid 5830] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5830] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5829] <... clone3 resumed> => {parent_tid=[5830]}, 88) = 5830
[pid 5830] <... set_robust_list resumed>) = 0
[pid 5829] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5830] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5829] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5830] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = 0
[pid 5829] <... futex resumed>) = 1
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5830] memfd_create("syzkaller", 0) = 3
[pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5830] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5830] munmap(0x7f302fc00000, 138412032) = 0
[pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5830] close(3) = 0
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] <... futex resumed>) = 0
[pid 5830] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 3
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] <... futex resumed>) = 0
[pid 5830] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] <... futex resumed>) = 0
[pid 5830] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] <... futex resumed>) = 0
[pid 5830] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 4
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = 0
[pid 5829] <... futex resumed>) = 1
[pid 5830] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 5
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5829] <... futex resumed>) = 0
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 6
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = 0
[pid 5829] <... futex resumed>) = 1
[pid 5830] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 7
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = 0
[pid 5829] <... futex resumed>) = 1
[pid 5830] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 8
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] <... futex resumed>) = 0
[pid 5830] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5829] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5830] <... openat resumed>) = 9
[pid 5830] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5829] <... futex resumed>) = 0
[pid 5830] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5829] exit_group(0 <unfinished ...>
[pid 5830] <... futex resumed>) = ?
[pid 5829] <... exit_group resumed>) = ?
[pid 5830] +++ exited with 0 +++
[pid 5829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5831 attached
, child_tidptr=0x55557ef05750) = 5831
[pid 5831] set_robust_list(0x55557ef05760, 24) = 0
[pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5831] setpgid(0, 0) = 0
[pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5831] write(3, "1000", 4) = 4
[pid 5831] close(3) = 0
[pid 5831] write(1, "executing program\n", 18executing program
) = 18
[pid 5831] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5831] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5831] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5831] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5831] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5831] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5831] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5832 attached
<unfinished ...>
[pid 5832] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5831] <... clone3 resumed> => {parent_tid=[5832]}, 88) = 5832
[pid 5832] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5831] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5832] <... set_robust_list resumed>) = 0
[pid 5832] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5832] <... futex resumed>) = 0
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5832] memfd_create("syzkaller", 0) = 3
[pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5832] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5832] munmap(0x7f302fc00000, 138412032) = 0
[pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5832] close(3) = 0
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5832] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5831] <... futex resumed>) = 0
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... openat resumed>) = 3
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5831] <... futex resumed>) = 0
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = 0
[pid 5832] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5831] <... futex resumed>) = 1
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5831] <... futex resumed>) = 0
[pid 5832] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... openat resumed>) = 4
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5831] <... futex resumed>) = 0
[pid 5832] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... openat resumed>) = 5
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = 0
[pid 5831] <... futex resumed>) = 1
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] <... futex resumed>) = 0
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = 0
[pid 5831] <... futex resumed>) = 1
[pid 5832] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... openat resumed>) = 7
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5831] <... futex resumed>) = 0
[pid 5832] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... openat resumed>) = 8
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5831] <... futex resumed>) = 0
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5832] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5831] <... futex resumed>) = 0
[pid 5832] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5831] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5832] <... openat resumed>) = 9
[pid 5832] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5831] <... futex resumed>) = 0
[pid 5832] <... futex resumed>) = 1
[pid 5832] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5831] exit_group(0 <unfinished ...>
[pid 5832] <... futex resumed>) = ?
[pid 5831] <... exit_group resumed>) = ?
[pid 5832] +++ exited with 0 +++
[pid 5831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5831, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5833 attached
<unfinished ...>
[pid 5833] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5833
[pid 5833] <... set_robust_list resumed>) = 0
[pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5833] setpgid(0, 0) = 0
[pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5833] write(3, "1000", 4) = 4
[pid 5833] close(3) = 0
executing program
[pid 5833] write(1, "executing program\n", 18) = 18
[pid 5833] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5833] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5833] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5833] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5833] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5833] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5833] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5834 attached
<unfinished ...>
[pid 5834] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5833] <... clone3 resumed> => {parent_tid=[5834]}, 88) = 5834
[pid 5834] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5833] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5834] <... set_robust_list resumed>) = 0
[pid 5833] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5834] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5834] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5834] <... memfd_create resumed>) = 3
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5834] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5834] munmap(0x7f302fc00000, 138412032) = 0
[pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5834] close(3) = 0
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5833] <... futex resumed>) = 0
[pid 5834] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5833] <... futex resumed>) = 0
[pid 5834] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] <... openat resumed>) = 3
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5833] <... futex resumed>) = 0
[pid 5834] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5833] <... futex resumed>) = 0
[pid 5834] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5833] <... futex resumed>) = 0
[pid 5834] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5833] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5833] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5834] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5834] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5834] <... openat resumed>) = 4
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5833] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5834] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5834] <... openat resumed>) = 5
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5833] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5834] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] <... openat resumed>) = 6
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5834] <... futex resumed>) = 1
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5834] <... openat resumed>) = 7
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5834] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5834] <... futex resumed>) = 0
[pid 5833] <... futex resumed>) = 1
[pid 5834] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] <... openat resumed>) = 8
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5834] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5833] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5834] <... futex resumed>) = 0
[pid 5833] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5834] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5834] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5833] <... futex resumed>) = 0
[pid 5834] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5833] exit_group(0 <unfinished ...>
[pid 5834] <... futex resumed>) = ?
[pid 5833] <... exit_group resumed>) = ?
[pid 5834] +++ exited with 0 +++
[pid 5833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5835 attached
, child_tidptr=0x55557ef05750) = 5835
[pid 5835] set_robust_list(0x55557ef05760, 24) = 0
[pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5835] setpgid(0, 0) = 0
[pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5835] write(3, "1000", 4) = 4
[pid 5835] close(3) = 0
[pid 5835] write(1, "executing program\n", 18executing program
) = 18
[pid 5835] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5835] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5835] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5835] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5835] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5835] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5835] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5836 attached
<unfinished ...>
[pid 5836] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5835] <... clone3 resumed> => {parent_tid=[5836]}, 88) = 5836
[pid 5836] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5836] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5836] <... futex resumed>) = 0
[pid 5836] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... memfd_create resumed>) = 3
[pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5836] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5836] munmap(0x7f302fc00000, 138412032) = 0
[pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5836] close(3) = 0
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... futex resumed>) = 0
[pid 5835] <... futex resumed>) = 1
[pid 5836] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... openat resumed>) = 3
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5836] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5835] <... futex resumed>) = 0
[pid 5836] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5835] <... futex resumed>) = 0
[pid 5836] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... openat resumed>) = 4
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5835] <... futex resumed>) = 0
[pid 5836] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... openat resumed>) = 5
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5835] <... futex resumed>) = 0
[pid 5836] <... openat resumed>) = 6
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... futex resumed>) = 0
[pid 5835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5835] <... futex resumed>) = 0
[pid 5836] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... openat resumed>) = 7
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... openat resumed>) = 8
[pid 5835] <... futex resumed>) = 0
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5835] <... futex resumed>) = 0
[pid 5836] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5835] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5836] <... openat resumed>) = 9
[pid 5836] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5835] <... futex resumed>) = 0
[pid 5836] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5835] exit_group(0 <unfinished ...>
[pid 5836] <... futex resumed>) = ?
[pid 5836] +++ exited with 0 +++
[pid 5835] <... exit_group resumed>) = ?
[pid 5835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5837 attached
, child_tidptr=0x55557ef05750) = 5837
[pid 5837] set_robust_list(0x55557ef05760, 24) = 0
[pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5837] setpgid(0, 0) = 0
[pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5837] write(3, "1000", 4) = 4
executing program
[pid 5837] close(3) = 0
[pid 5837] write(1, "executing program\n", 18) = 18
[pid 5837] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5837] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5837] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5837] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5837] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5837] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5838 attached
<unfinished ...>
[pid 5838] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5837] <... clone3 resumed> => {parent_tid=[5838]}, 88) = 5838
[pid 5838] <... rseq resumed>) = 0
[pid 5837] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5838] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5837] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5838] <... futex resumed>) = 0
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5838] memfd_create("syzkaller", 0) = 3
[pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5838] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5838] munmap(0x7f302fc00000, 138412032) = 0
[pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5838] close(3) = 0
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5837] <... futex resumed>) = 0
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] <... openat resumed>) = 3
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] <... futex resumed>) = 0
[pid 5837] <... futex resumed>) = 1
[pid 5838] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5838] <... futex resumed>) = 0
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5837] <... futex resumed>) = 0
[pid 5838] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] <... openat resumed>) = 4
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] <... openat resumed>) = 5
[pid 5837] <... futex resumed>) = 0
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5838] <... openat resumed>) = 6
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5837] <... futex resumed>) = 0
[pid 5838] <... futex resumed>) = 1
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5837] <... futex resumed>) = 0
[pid 5838] <... openat resumed>) = 7
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5837] <... futex resumed>) = 0
[pid 5838] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] <... openat resumed>) = 8
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5837] <... futex resumed>) = 0
[pid 5838] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5837] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5838] <... openat resumed>) = 9
[pid 5837] <... futex resumed>) = 0
[pid 5838] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5837] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5838] <... futex resumed>) = 0
[pid 5837] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5838] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5837] exit_group(0) = ?
[pid 5838] <... futex resumed>) = ?
[pid 5838] +++ exited with 0 +++
[pid 5837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5839 attached
, child_tidptr=0x55557ef05750) = 5839
[pid 5839] set_robust_list(0x55557ef05760, 24) = 0
[pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5839] setpgid(0, 0) = 0
[pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5839] write(3, "1000", 4) = 4
[pid 5839] close(3executing program
) = 0
[pid 5839] write(1, "executing program\n", 18) = 18
[pid 5839] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5839] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5839] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5839] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5839] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5839] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5840 attached
<unfinished ...>
[pid 5840] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5839] <... clone3 resumed> => {parent_tid=[5840]}, 88) = 5840
[pid 5840] <... rseq resumed>) = 0
[pid 5839] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5840] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5840] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5839] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5840] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5840] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5840] <... memfd_create resumed>) = 3
[pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5840] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5840] munmap(0x7f302fc00000, 138412032) = 0
[pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5840] close(3) = 0
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5840] <... futex resumed>) = 0
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] <... futex resumed>) = 0
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] <... futex resumed>) = 0
[pid 5839] <... futex resumed>) = 1
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] <... futex resumed>) = 0
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] <... futex resumed>) = 0
[pid 5839] <... futex resumed>) = 1
[pid 5840] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5839] <... futex resumed>) = 0
[pid 5840] <... openat resumed>) = 4
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5840] <... futex resumed>) = 0
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5839] <... futex resumed>) = 0
[pid 5840] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] <... openat resumed>) = 6
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5839] <... futex resumed>) = 0
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] <... openat resumed>) = 8
[pid 5839] <... futex resumed>) = 0
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5839] <... futex resumed>) = 0
[pid 5840] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5839] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5840] <... openat resumed>) = 9
[pid 5840] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5839] <... futex resumed>) = 0
[pid 5840] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5839] exit_group(0) = ?
[pid 5840] <... futex resumed>) = ?
[pid 5840] +++ exited with 0 +++
[pid 5839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5841
./strace-static-x86_64: Process 5841 attached
[pid 5841] set_robust_list(0x55557ef05760, 24) = 0
[pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5841] setpgid(0, 0) = 0
[pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5841] write(3, "1000", 4) = 4
[pid 5841] close(3) = 0
executing program
[pid 5841] write(1, "executing program\n", 18) = 18
[pid 5841] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5841] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5841] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5841] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5841] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5841] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5841] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5842 attached
<unfinished ...>
[pid 5842] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5841] <... clone3 resumed> => {parent_tid=[5842]}, 88) = 5842
[pid 5842] <... rseq resumed>) = 0
[pid 5842] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5841] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5842] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5841] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5842] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5842] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5842] <... memfd_create resumed>) = 3
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5842] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5842] munmap(0x7f302fc00000, 138412032) = 0
[pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5842] close(3) = 0
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5841] <... futex resumed>) = 0
[pid 5842] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5841] <... futex resumed>) = 0
[pid 5842] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] <... openat resumed>) = 3
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5842] <... futex resumed>) = 1
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5842] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5842] <... futex resumed>) = 1
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5841] <... futex resumed>) = 0
[pid 5842] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] <... openat resumed>) = 4
[pid 5841] <... futex resumed>) = 0
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5841] <... futex resumed>) = 0
[pid 5842] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] <... futex resumed>) = 0
[pid 5841] <... futex resumed>) = 1
[pid 5842] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] <... openat resumed>) = 5
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5841] <... futex resumed>) = 0
[pid 5842] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] <... openat resumed>) = 6
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5842] <... futex resumed>) = 1
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5842] <... openat resumed>) = 7
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5841] <... futex resumed>) = 0
[pid 5842] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] <... openat resumed>) = 8
[pid 5841] <... futex resumed>) = 0
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5841] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5842] <... futex resumed>) = 0
[pid 5841] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5842] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5841] <... futex resumed>) = 0
[pid 5842] <... openat resumed>) = 9
[pid 5841] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5842] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5841] <... futex resumed>) = 0
[pid 5842] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5841] exit_group(0) = ?
[pid 5842] <... futex resumed>) = ?
[pid 5842] +++ exited with 0 +++
[pid 5841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached
<unfinished ...>
[pid 5843] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5843
[pid 5843] <... set_robust_list resumed>) = 0
[pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5843] setpgid(0, 0) = 0
[pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5843] write(3, "1000", 4) = 4
[pid 5843] close(3) = 0
executing program
[pid 5843] write(1, "executing program\n", 18) = 18
[pid 5843] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5843] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5843] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5843] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5843] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5843] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5843] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5844 attached
<unfinished ...>
[pid 5844] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5843] <... clone3 resumed> => {parent_tid=[5844]}, 88) = 5844
[pid 5844] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5843] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5844] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5843] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5844] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5843] <... futex resumed>) = 0
[pid 5844] <... memfd_create resumed>) = 3
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5844] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5844] munmap(0x7f302fc00000, 138412032) = 0
[pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5844] close(3) = 0
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] <... futex resumed>) = 0
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] <... futex resumed>) = 0
[pid 5843] <... futex resumed>) = 1
[pid 5844] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] <... openat resumed>) = 3
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] <... futex resumed>) = 0
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] <... futex resumed>) = 0
[pid 5843] <... futex resumed>) = 1
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5843] <... futex resumed>) = 0
[pid 5844] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5843] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5844] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5843] <... futex resumed>) = 0
[pid 5844] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] <... openat resumed>) = 4
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5843] <... futex resumed>) = 0
[pid 5844] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] <... openat resumed>) = 5
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5843] <... futex resumed>) = 0
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] <... openat resumed>) = 6
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] <... futex resumed>) = 0
[pid 5843] <... futex resumed>) = 1
[pid 5844] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] <... openat resumed>) = 7
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 8
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5843] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5844] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5843] <... futex resumed>) = 0
[pid 5843] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5844] <... openat resumed>) = 9
[pid 5844] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5843] <... futex resumed>) = 0
[pid 5844] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5843] exit_group(0 <unfinished ...>
[pid 5844] <... futex resumed>) = ?
[pid 5843] <... exit_group resumed>) = ?
[pid 5844] +++ exited with 0 +++
[pid 5843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5845
./strace-static-x86_64: Process 5845 attached
[pid 5845] set_robust_list(0x55557ef05760, 24) = 0
[pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5845] setpgid(0, 0) = 0
[pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5845] write(3, "1000", 4) = 4
[pid 5845] close(3) = 0
executing program
[pid 5845] write(1, "executing program\n", 18) = 18
[pid 5845] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5845] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5845] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5845] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5845] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5846 attached
<unfinished ...>
[pid 5846] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5845] <... clone3 resumed> => {parent_tid=[5846]}, 88) = 5846
[pid 5846] <... rseq resumed>) = 0
[pid 5845] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5846] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5846] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5845] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5846] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5846] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5846] <... memfd_create resumed>) = 3
[pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5846] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5846] munmap(0x7f302fc00000, 138412032) = 0
[pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5846] close(3) = 0
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5846] <... futex resumed>) = 0
[pid 5845] <... futex resumed>) = 1
[pid 5846] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] <... openat resumed>) = 3
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5846] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5846] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5845] <... futex resumed>) = 0
[pid 5846] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5846] <... futex resumed>) = 0
[pid 5845] <... futex resumed>) = 1
[pid 5846] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5845] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5846] <... futex resumed>) = 0
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] <... futex resumed>) = 0
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5846] <... futex resumed>) = 0
[pid 5845] <... futex resumed>) = 1
[pid 5846] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] <... openat resumed>) = 5
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5846] <... futex resumed>) = 0
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5846] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5845] <... futex resumed>) = 0
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5846] <... futex resumed>) = 0
[pid 5845] <... futex resumed>) = 1
[pid 5846] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] <... openat resumed>) = 8
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5846] <... futex resumed>) = 0
[pid 5845] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5846] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5846] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5845] <... futex resumed>) = 0
[pid 5846] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5845] exit_group(0 <unfinished ...>
[pid 5846] <... futex resumed>) = ?
[pid 5845] <... exit_group resumed>) = ?
[pid 5846] +++ exited with 0 +++
[pid 5845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached
, child_tidptr=0x55557ef05750) = 5847
[pid 5847] set_robust_list(0x55557ef05760, 24) = 0
[pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5847] setpgid(0, 0) = 0
[pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5847] write(3, "1000", 4) = 4
[pid 5847] close(3) = 0
executing program
[pid 5847] write(1, "executing program\n", 18) = 18
[pid 5847] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5847] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5847] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5848 attached
<unfinished ...>
[pid 5848] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5847] <... clone3 resumed> => {parent_tid=[5848]}, 88) = 5848
[pid 5848] <... rseq resumed>) = 0
[pid 5847] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5848] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5848] <... set_robust_list resumed>) = 0
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5848] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5848] memfd_create("syzkaller", 0) = 3
[pid 5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5848] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5848] munmap(0x7f302fc00000, 138412032) = 0
[pid 5848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5848] close(3) = 0
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] <... openat resumed>) = 3
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5848] <... futex resumed>) = 0
[pid 5848] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5848] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5848] <... futex resumed>) = 0
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] <... openat resumed>) = 4
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5847] <... futex resumed>) = 0
[pid 5848] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] <... openat resumed>) = 5
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5848] <... openat resumed>) = 6
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5847] <... futex resumed>) = 0
[pid 5848] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] <... openat resumed>) = 7
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5848] <... futex resumed>) = 1
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5847] <... futex resumed>) = 0
[pid 5848] <... openat resumed>) = 8
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5847] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5848] <... openat resumed>) = 9
[pid 5847] <... futex resumed>) = 0
[pid 5847] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5848] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5847] <... futex resumed>) = 0
[pid 5848] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5847] exit_group(0 <unfinished ...>
[pid 5848] <... futex resumed>) = ?
[pid 5847] <... exit_group resumed>) = ?
[pid 5848] +++ exited with 0 +++
[pid 5847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5849
./strace-static-x86_64: Process 5849 attached
[pid 5849] set_robust_list(0x55557ef05760, 24) = 0
[pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5849] setpgid(0, 0) = 0
[pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5849] write(3, "1000", 4) = 4
[pid 5849] close(3) = 0
[pid 5849] write(1, "executing program\n", 18executing program
) = 18
[pid 5849] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5849] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5849] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5849] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5849] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5850 attached
<unfinished ...>
[pid 5850] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5849] <... clone3 resumed> => {parent_tid=[5850]}, 88) = 5850
[pid 5850] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5849] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5850] <... set_robust_list resumed>) = 0
[pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5850] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] memfd_create("syzkaller", 0) = 3
[pid 5849] <... futex resumed>) = 0
[pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5850] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5850] munmap(0x7f302fc00000, 138412032) = 0
[pid 5850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5850] close(3) = 0
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5850] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] <... futex resumed>) = 0
[pid 5849] <... futex resumed>) = 1
[pid 5850] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] <... openat resumed>) = 3
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5850] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] <... futex resumed>) = 0
[pid 5849] <... futex resumed>) = 1
[pid 5850] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5849] <... futex resumed>) = 0
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5850] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5849] <... futex resumed>) = 0
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5850] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5849] <... futex resumed>) = 0
[pid 5850] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] <... openat resumed>) = 5
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5850] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5849] <... futex resumed>) = 0
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] <... futex resumed>) = 0
[pid 5849] <... futex resumed>) = 1
[pid 5850] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] <... openat resumed>) = 6
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5850] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] <... openat resumed>) = 7
[pid 5849] <... futex resumed>) = 0
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5849] <... futex resumed>) = 0
[pid 5850] <... futex resumed>) = 1
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5850] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5849] <... futex resumed>) = 0
[pid 5850] <... openat resumed>) = 8
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5849] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5849] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5850] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5850] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5849] <... futex resumed>) = 0
[pid 5850] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5849] exit_group(0 <unfinished ...>
[pid 5850] <... futex resumed>) = ?
[pid 5849] <... exit_group resumed>) = ?
[pid 5850] +++ exited with 0 +++
[pid 5849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5851 attached
<unfinished ...>
[pid 5851] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5851
[pid 5851] <... set_robust_list resumed>) = 0
[pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5851] setpgid(0, 0) = 0
[pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5851] write(3, "1000", 4) = 4
[pid 5851] close(3) = 0
executing program
[pid 5851] write(1, "executing program\n", 18) = 18
[pid 5851] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5851] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5851] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5851] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5851] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5851] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5852 attached
<unfinished ...>
[pid 5852] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5852] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5851] <... clone3 resumed> => {parent_tid=[5852]}, 88) = 5852
[pid 5852] <... set_robust_list resumed>) = 0
[pid 5851] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5852] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5852] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... memfd_create resumed>) = 3
[pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5852] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5852] munmap(0x7f302fc00000, 138412032) = 0
[pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5852] close(3) = 0
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] <... futex resumed>) = 0
[pid 5851] <... futex resumed>) = 1
[pid 5852] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... openat resumed>) = 3
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... futex resumed>) = 0
[pid 5852] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... openat resumed>) = 4
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5852] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5851] <... futex resumed>) = 0
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... openat resumed>) = 7
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5851] <... futex resumed>) = 0
[pid 5852] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... openat resumed>) = 8
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5851] <... futex resumed>) = 0
[pid 5852] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5851] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5852] <... openat resumed>) = 9
[pid 5852] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5851] <... futex resumed>) = 0
[pid 5852] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5851] exit_group(0 <unfinished ...>
[pid 5852] <... futex resumed>) = ?
[pid 5851] <... exit_group resumed>) = ?
[pid 5852] +++ exited with 0 +++
[pid 5851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5853 attached
, child_tidptr=0x55557ef05750) = 5853
[pid 5853] set_robust_list(0x55557ef05760, 24) = 0
[pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5853] setpgid(0, 0) = 0
[pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5853] write(3, "1000", 4) = 4
[pid 5853] close(3) = 0
executing program
[pid 5853] write(1, "executing program\n", 18) = 18
[pid 5853] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5853] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5853] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5853] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5853] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5854 attached
<unfinished ...>
[pid 5854] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5853] <... clone3 resumed> => {parent_tid=[5854]}, 88) = 5854
[pid 5854] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5853] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5854] <... set_robust_list resumed>) = 0
[pid 5853] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5854] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5853] <... futex resumed>) = 0
[pid 5854] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5854] <... memfd_create resumed>) = 3
[pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5854] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5854] munmap(0x7f302fc00000, 138412032) = 0
[pid 5854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5854] close(3) = 0
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5853] <... futex resumed>) = 0
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5854] <... futex resumed>) = 0
[pid 5854] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] <... openat resumed>) = 3
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5853] <... futex resumed>) = 0
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5853] <... futex resumed>) = 0
[pid 5854] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5854] <... futex resumed>) = 0
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5853] <... futex resumed>) = 0
[pid 5854] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5853] <... futex resumed>) = 0
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5853] <... futex resumed>) = 0
[pid 5854] <... openat resumed>) = 4
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5853] <... futex resumed>) = 0
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5853] <... futex resumed>) = 0
[pid 5854] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] <... openat resumed>) = 5
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5853] <... futex resumed>) = 0
[pid 5854] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5854] <... openat resumed>) = 6
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] <... futex resumed>) = 0
[pid 5853] <... futex resumed>) = 1
[pid 5854] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] <... openat resumed>) = 7
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5853] <... futex resumed>) = 0
[pid 5854] <... futex resumed>) = 1
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5853] <... futex resumed>) = 0
[pid 5854] <... openat resumed>) = 8
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5853] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5853] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5854] <... futex resumed>) = 0
[pid 5854] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5853] <... futex resumed>) = 1
[pid 5853] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5854] <... openat resumed>) = 9
[pid 5854] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5853] <... futex resumed>) = 0
[pid 5854] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5853] exit_group(0 <unfinished ...>
[pid 5854] <... futex resumed>) = ?
[pid 5853] <... exit_group resumed>) = ?
[pid 5854] +++ exited with 0 +++
[pid 5853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5855 attached
, child_tidptr=0x55557ef05750) = 5855
[pid 5855] set_robust_list(0x55557ef05760, 24) = 0
[pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5855] setpgid(0, 0) = 0
[pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5855] write(3, "1000", 4) = 4
[pid 5855] close(3) = 0
[pid 5855] write(1, "executing program\n", 18executing program
) = 18
[pid 5855] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5855] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5855] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5855] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5855] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5855] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5856 attached
<unfinished ...>
[pid 5856] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5856] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5855] <... clone3 resumed> => {parent_tid=[5856]}, 88) = 5856
[pid 5856] <... set_robust_list resumed>) = 0
[pid 5855] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5856] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5855] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5856] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5855] <... futex resumed>) = 0
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... memfd_create resumed>) = 3
[pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5856] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5856] munmap(0x7f302fc00000, 138412032) = 0
[pid 5856] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5856] close(3) = 0
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = 0
[pid 5855] <... futex resumed>) = 1
[pid 5856] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... openat resumed>) = 3
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] <... futex resumed>) = 0
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] <... futex resumed>) = 0
[pid 5856] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] <... futex resumed>) = 0
[pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... futex resumed>) = 0
[pid 5855] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] <... futex resumed>) = 0
[pid 5856] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] <... futex resumed>) = 0
[pid 5856] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... openat resumed>) = 5
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] <... futex resumed>) = 0
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = 0
[pid 5855] <... futex resumed>) = 1
[pid 5856] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... openat resumed>) = 6
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5855] <... futex resumed>) = 0
[pid 5856] <... openat resumed>) = 7
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] <... futex resumed>) = 0
[pid 5856] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... openat resumed>) = 8
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5855] <... futex resumed>) = 0
[pid 5856] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5855] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5856] <... openat resumed>) = 9
[pid 5856] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5855] <... futex resumed>) = 0
[pid 5856] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5855] exit_group(0 <unfinished ...>
[pid 5856] <... futex resumed>) = ?
[pid 5856] +++ exited with 0 +++
[pid 5855] <... exit_group resumed>) = ?
[pid 5855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5857 attached
, child_tidptr=0x55557ef05750) = 5857
[pid 5857] set_robust_list(0x55557ef05760, 24) = 0
[pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5857] setpgid(0, 0) = 0
[pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5857] write(3, "1000", 4) = 4
executing program
[pid 5857] close(3) = 0
[pid 5857] write(1, "executing program\n", 18) = 18
[pid 5857] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5857] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5857] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5857] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5857] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5857] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5857] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5858 attached
<unfinished ...>
[pid 5858] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5857] <... clone3 resumed> => {parent_tid=[5858]}, 88) = 5858
[pid 5858] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5857] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5858] <... set_robust_list resumed>) = 0
[pid 5857] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5858] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5858] <... memfd_create resumed>) = 3
[pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5858] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5858] munmap(0x7f302fc00000, 138412032) = 0
[pid 5858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5858] close(3) = 0
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] <... openat resumed>) = 3
[pid 5857] <... futex resumed>) = 0
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5857] <... futex resumed>) = 0
[pid 5858] <... futex resumed>) = 1
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5857] <... futex resumed>) = 0
[pid 5858] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5857] <... futex resumed>) = 0
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] <... futex resumed>) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5857] <... futex resumed>) = 0
[pid 5858] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] <... openat resumed>) = 4
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5858] <... openat resumed>) = 5
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5857] <... futex resumed>) = 0
[pid 5858] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] <... openat resumed>) = 6
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5857] <... futex resumed>) = 0
[pid 5858] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] <... openat resumed>) = 7
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5857] <... futex resumed>) = 0
[pid 5858] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5858] <... openat resumed>) = 8
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5858] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5857] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5858] <... futex resumed>) = 0
[pid 5857] <... futex resumed>) = 1
[pid 5858] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5857] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5858] <... openat resumed>) = 9
[pid 5858] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5858] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5857] <... futex resumed>) = 0
[pid 5857] exit_group(0 <unfinished ...>
[pid 5858] <... futex resumed>) = ?
[pid 5857] <... exit_group resumed>) = ?
[pid 5858] +++ exited with 0 +++
[pid 5857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached
, child_tidptr=0x55557ef05750) = 5859
[pid 5859] set_robust_list(0x55557ef05760, 24) = 0
[pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5859] setpgid(0, 0) = 0
[pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5859] write(3, "1000", 4) = 4
[pid 5859] close(3) = 0
[pid 5859] write(1, "executing program\n", 18executing program
) = 18
[pid 5859] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5859] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5859] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5859] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5859] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5859] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5859] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5860 attached
=> {parent_tid=[5860]}, 88) = 5860
[pid 5860] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5860] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5859] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5860] <... set_robust_list resumed>) = 0
[pid 5859] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5860] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5859] <... futex resumed>) = 0
[pid 5860] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... memfd_create resumed>) = 3
[pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5860] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5860] munmap(0x7f302fc00000, 138412032) = 0
[pid 5860] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5860] close(3) = 0
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5859] <... futex resumed>) = 0
[pid 5860] <... futex resumed>) = 1
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5859] <... futex resumed>) = 0
[pid 5860] <... openat resumed>) = 3
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5859] <... futex resumed>) = 0
[pid 5860] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5859] <... futex resumed>) = 0
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... futex resumed>) = 0
[pid 5859] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5860] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5859] <... futex resumed>) = 0
[pid 5860] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5859] <... futex resumed>) = 0
[pid 5860] <... futex resumed>) = 1
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5859] <... futex resumed>) = 0
[pid 5860] <... openat resumed>) = 4
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5859] <... futex resumed>) = 0
[pid 5860] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... futex resumed>) = 0
[pid 5859] <... futex resumed>) = 1
[pid 5860] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... openat resumed>) = 5
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5859] <... futex resumed>) = 0
[pid 5860] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5859] <... futex resumed>) = 0
[pid 5860] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... openat resumed>) = 6
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5859] <... futex resumed>) = 0
[pid 5860] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5859] <... futex resumed>) = 0
[pid 5860] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... openat resumed>) = 7
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5859] <... futex resumed>) = 0
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 8
[pid 5859] <... futex resumed>) = 0
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... futex resumed>) = 0
[pid 5859] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5860] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5859] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5859] <... futex resumed>) = 0
[pid 5860] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5859] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5860] <... openat resumed>) = 9
[pid 5860] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5859] <... futex resumed>) = 0
[pid 5860] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5859] exit_group(0 <unfinished ...>
[pid 5860] <... futex resumed>) = ?
[pid 5859] <... exit_group resumed>) = ?
[pid 5860] +++ exited with 0 +++
[pid 5859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5861 attached
, child_tidptr=0x55557ef05750) = 5861
[pid 5861] set_robust_list(0x55557ef05760, 24) = 0
[pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5861] setpgid(0, 0) = 0
[pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5861] write(3, "1000", 4) = 4
executing program
[pid 5861] close(3) = 0
[pid 5861] write(1, "executing program\n", 18) = 18
[pid 5861] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5861] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5861] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5861] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5861] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5861] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5861] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5862 attached
<unfinished ...>
[pid 5862] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5861] <... clone3 resumed> => {parent_tid=[5862]}, 88) = 5862
[pid 5862] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] <... futex resumed>) = 0
[pid 5861] <... futex resumed>) = 1
[pid 5862] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... memfd_create resumed>) = 3
[pid 5862] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5862] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5862] munmap(0x7f302fc00000, 138412032) = 0
[pid 5862] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5862] close(3) = 0
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5862] <... futex resumed>) = 0
[pid 5862] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... openat resumed>) = 3
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] <... futex resumed>) = 0
[pid 5861] <... futex resumed>) = 1
[pid 5862] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5861] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5861] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... openat resumed>) = 4
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5861] <... futex resumed>) = 0
[pid 5862] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... openat resumed>) = 5
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5861] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5861] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] <... openat resumed>) = 7
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5862] <... openat resumed>) = 8
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5861] <... futex resumed>) = 0
[pid 5862] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5861] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5862] <... futex resumed>) = 0
[pid 5861] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5862] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5862] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5861] <... futex resumed>) = 0
[pid 5862] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5861] exit_group(0) = ?
[pid 5862] <... futex resumed>) = ?
[pid 5862] +++ exited with 0 +++
[pid 5861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5863 attached
, child_tidptr=0x55557ef05750) = 5863
[pid 5863] set_robust_list(0x55557ef05760, 24) = 0
[pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5863] setpgid(0, 0) = 0
[pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5863] write(3, "1000", 4) = 4
[pid 5863] close(3) = 0
[pid 5863] write(1, "executing program\n", 18executing program
) = 18
[pid 5863] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5863] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5863] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5863] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5864 attached
<unfinished ...>
[pid 5864] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5864] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5863] <... clone3 resumed> => {parent_tid=[5864]}, 88) = 5864
[pid 5864] <... set_robust_list resumed>) = 0
[pid 5864] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5863] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5864] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5863] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5864] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5864] memfd_create("syzkaller", 0) = 3
[pid 5864] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5864] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5864] munmap(0x7f302fc00000, 138412032) = 0
[pid 5864] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5864] close(3) = 0
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] <... openat resumed>) = 3
[pid 5863] <... futex resumed>) = 0
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5863] <... futex resumed>) = 0
[pid 5864] <... futex resumed>) = 1
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5863] <... futex resumed>) = 0
[pid 5864] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5863] <... futex resumed>) = 0
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] <... futex resumed>) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] <... openat resumed>) = 4
[pid 5863] <... futex resumed>) = 0
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] <... openat resumed>) = 5
[pid 5863] <... futex resumed>) = 0
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5863] <... futex resumed>) = 0
[pid 5864] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] <... openat resumed>) = 6
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5863] <... futex resumed>) = 0
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] <... openat resumed>) = 7
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5864] <... futex resumed>) = 0
[pid 5864] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] <... openat resumed>) = 8
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5863] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5863] <... futex resumed>) = 0
[pid 5864] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5863] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5864] <... openat resumed>) = 9
[pid 5864] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5863] <... futex resumed>) = 0
[pid 5864] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5863] exit_group(0 <unfinished ...>
[pid 5864] <... futex resumed>) = ?
[pid 5863] <... exit_group resumed>) = ?
[pid 5864] +++ exited with 0 +++
[pid 5863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached
<unfinished ...>
[pid 5865] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5865
[pid 5865] <... set_robust_list resumed>) = 0
[pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5865] setpgid(0, 0) = 0
[pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5865] write(3, "1000", 4) = 4
[pid 5865] close(3executing program
) = 0
[pid 5865] write(1, "executing program\n", 18) = 18
[pid 5865] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5865] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5865] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5865] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5865] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5865] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5866 attached
<unfinished ...>
[pid 5866] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5865] <... clone3 resumed> => {parent_tid=[5866]}, 88) = 5866
[pid 5866] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5865] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5866] <... set_robust_list resumed>) = 0
[pid 5865] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5866] memfd_create("syzkaller", 0) = 3
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5866] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5866] munmap(0x7f302fc00000, 138412032) = 0
[pid 5866] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5866] close(3) = 0
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... openat resumed>) = 3
[pid 5865] <... futex resumed>) = 0
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5865] <... futex resumed>) = 0
[pid 5866] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5865] <... futex resumed>) = 0
[pid 5866] <... futex resumed>) = 1
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5865] <... futex resumed>) = 0
[pid 5866] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5866] <... futex resumed>) = 0
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5865] <... futex resumed>) = 0
[pid 5866] <... openat resumed>) = 4
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5865] <... futex resumed>) = 0
[pid 5866] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] <... openat resumed>) = 5
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5865] <... futex resumed>) = 0
[pid 5866] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] <... openat resumed>) = 6
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... openat resumed>) = 7
[pid 5865] <... futex resumed>) = 0
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5865] <... futex resumed>) = 0
[pid 5866] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] <... openat resumed>) = 8
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5865] <... futex resumed>) = 0
[pid 5866] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5865] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5866] <... openat resumed>) = 9
[pid 5865] <... futex resumed>) = 0
[pid 5866] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5865] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5866] <... futex resumed>) = 0
[pid 5865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5866] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5865] exit_group(0 <unfinished ...>
[pid 5866] <... futex resumed>) = ?
[pid 5865] <... exit_group resumed>) = ?
[pid 5866] +++ exited with 0 +++
[pid 5865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5867 attached
<unfinished ...>
[pid 5867] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5867
[pid 5867] <... set_robust_list resumed>) = 0
[pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5867] setpgid(0, 0) = 0
[pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5867] write(3, "1000", 4) = 4
executing program
[pid 5867] close(3) = 0
[pid 5867] write(1, "executing program\n", 18) = 18
[pid 5867] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5867] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5867] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5867] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5867] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5867] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5868 attached
<unfinished ...>
[pid 5868] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5867] <... clone3 resumed> => {parent_tid=[5868]}, 88) = 5868
[pid 5868] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5867] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5868] <... set_robust_list resumed>) = 0
[pid 5868] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5868] <... futex resumed>) = 0
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5868] memfd_create("syzkaller", 0) = 3
[pid 5868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5868] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5868] munmap(0x7f302fc00000, 138412032) = 0
[pid 5868] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5868] close(3) = 0
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5867] <... futex resumed>) = 0
[pid 5868] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] <... openat resumed>) = 3
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5868] <... futex resumed>) = 0
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5868] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5867] <... futex resumed>) = 0
[pid 5868] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5867] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5868] <... futex resumed>) = 0
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5868] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] <... openat resumed>) = 4
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5867] <... futex resumed>) = 0
[pid 5868] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] <... openat resumed>) = 5
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5868] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5868] <... futex resumed>) = 0
[pid 5867] <... futex resumed>) = 1
[pid 5868] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5867] <... futex resumed>) = 0
[pid 5868] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5867] <... futex resumed>) = 0
[pid 5868] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] <... openat resumed>) = 8
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5867] <... futex resumed>) = 0
[pid 5868] <... futex resumed>) = 1
[pid 5867] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5868] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5867] <... futex resumed>) = 0
[pid 5868] <... openat resumed>) = 9
[pid 5867] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5868] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5867] <... futex resumed>) = 0
[pid 5867] exit_group(0 <unfinished ...>
[pid 5868] <... futex resumed>) = ?
[pid 5867] <... exit_group resumed>) = ?
[pid 5868] +++ exited with 0 +++
[pid 5867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5869 attached
<unfinished ...>
[pid 5869] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5869
[pid 5869] <... set_robust_list resumed>) = 0
[pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5869] setpgid(0, 0) = 0
[pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5869] write(3, "1000", 4) = 4
[pid 5869] close(3) = 0
executing program
[pid 5869] write(1, "executing program\n", 18) = 18
[pid 5869] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5869] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5869] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5869] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5869] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5870 attached
=> {parent_tid=[5870]}, 88) = 5870
[pid 5870] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5869] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5870] <... rseq resumed>) = 0
[pid 5869] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5870] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] <... set_robust_list resumed>) = 0
[pid 5869] <... futex resumed>) = 0
[pid 5870] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5870] memfd_create("syzkaller", 0) = 3
[pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5870] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5870] munmap(0x7f302fc00000, 138412032) = 0
[pid 5870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5870] close(3) = 0
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5870] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5869] <... futex resumed>) = 0
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... openat resumed>) = 3
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5869] <... futex resumed>) = 0
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5870] <... futex resumed>) = 0
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5869] <... futex resumed>) = 0
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... openat resumed>) = 4
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... futex resumed>) = 0
[pid 5870] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5869] <... futex resumed>) = 0
[pid 5870] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... openat resumed>) = 6
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5869] <... futex resumed>) = 0
[pid 5870] <... openat resumed>) = 7
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5869] <... futex resumed>) = 0
[pid 5870] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... openat resumed>) = 8
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5870] <... futex resumed>) = 0
[pid 5869] <... futex resumed>) = 1
[pid 5870] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5869] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5870] <... openat resumed>) = 9
[pid 5870] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5869] <... futex resumed>) = 0
[pid 5870] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5869] exit_group(0 <unfinished ...>
[pid 5870] <... futex resumed>) = ?
[pid 5870] +++ exited with 0 +++
[pid 5869] <... exit_group resumed>) = ?
[pid 5869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5871 attached
, child_tidptr=0x55557ef05750) = 5871
[pid 5871] set_robust_list(0x55557ef05760, 24) = 0
[pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5871] setpgid(0, 0) = 0
[pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5871] write(3, "1000", 4) = 4
[pid 5871] close(3) = 0
executing program
[pid 5871] write(1, "executing program\n", 18) = 18
[pid 5871] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5871] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5871] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5871] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5871] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5871] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5872 attached
<unfinished ...>
[pid 5872] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5871] <... clone3 resumed> => {parent_tid=[5872]}, 88) = 5872
[pid 5872] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5871] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5872] <... set_robust_list resumed>) = 0
[pid 5871] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5872] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5871] <... futex resumed>) = 0
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5872] memfd_create("syzkaller", 0) = 3
[pid 5872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5872] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5872] munmap(0x7f302fc00000, 138412032) = 0
[pid 5872] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5872] close(3) = 0
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... futex resumed>) = 0
[pid 5871] <... futex resumed>) = 1
[pid 5872] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 3
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] <... futex resumed>) = 0
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... futex resumed>) = 0
[pid 5871] <... futex resumed>) = 1
[pid 5872] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5872] <... futex resumed>) = 0
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5871] <... futex resumed>) = 0
[pid 5872] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5871] <... futex resumed>) = 0
[pid 5872] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 4
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5871] <... futex resumed>) = 0
[pid 5872] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 5
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5871] <... futex resumed>) = 0
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 6
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5871] <... futex resumed>) = 0
[pid 5872] <... futex resumed>) = 1
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5871] <... futex resumed>) = 0
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 7
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5871] <... futex resumed>) = 0
[pid 5872] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 8
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5872] <... futex resumed>) = 0
[pid 5871] <... futex resumed>) = 1
[pid 5872] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5871] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5872] <... openat resumed>) = 9
[pid 5872] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5871] <... futex resumed>) = 0
[pid 5872] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5871] exit_group(0 <unfinished ...>
[pid 5872] <... futex resumed>) = ?
[pid 5871] <... exit_group resumed>) = ?
[pid 5872] +++ exited with 0 +++
[pid 5871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5873
./strace-static-x86_64: Process 5873 attached
[pid 5873] set_robust_list(0x55557ef05760, 24) = 0
[pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5873] setpgid(0, 0) = 0
[pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5873] write(3, "1000", 4) = 4
[pid 5873] close(3) = 0
[pid 5873] write(1, "executing program\n", 18executing program
) = 18
[pid 5873] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5873] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5873] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5873] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5874 attached
<unfinished ...>
[pid 5874] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5873] <... clone3 resumed> => {parent_tid=[5874]}, 88) = 5874
[pid 5874] <... rseq resumed>) = 0
[pid 5874] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... futex resumed>) = 0
[pid 5873] <... futex resumed>) = 1
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5874] memfd_create("syzkaller", 0) = 3
[pid 5874] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5874] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5874] munmap(0x7f302fc00000, 138412032) = 0
[pid 5874] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5874] close(3) = 0
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5873] <... futex resumed>) = 0
[pid 5874] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... openat resumed>) = 3
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5873] <... futex resumed>) = 0
[pid 5874] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... futex resumed>) = 0
[pid 5873] <... futex resumed>) = 1
[pid 5874] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5874] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5873] <... futex resumed>) = 0
[pid 5874] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... openat resumed>) = 5
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... openat resumed>) = 6
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... futex resumed>) = 0
[pid 5873] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5873] <... futex resumed>) = 0
[pid 5874] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... openat resumed>) = 7
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5873] <... futex resumed>) = 0
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... openat resumed>) = 8
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5873] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5874] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5873] <... futex resumed>) = 0
[pid 5873] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5874] <... openat resumed>) = 9
[pid 5874] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5873] <... futex resumed>) = 0
[pid 5874] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5873] exit_group(0 <unfinished ...>
[pid 5874] <... futex resumed>) = ?
[pid 5873] <... exit_group resumed>) = ?
[pid 5874] +++ exited with 0 +++
[pid 5873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5875 attached
, child_tidptr=0x55557ef05750) = 5875
[pid 5875] set_robust_list(0x55557ef05760, 24) = 0
[pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5875] setpgid(0, 0) = 0
[pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5875] write(3, "1000", 4) = 4
[pid 5875] close(3) = 0
[pid 5875] write(1, "executing program\n", 18executing program
) = 18
[pid 5875] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5875] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5875] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5875] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5875] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5875] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5876 attached
<unfinished ...>
[pid 5876] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5875] <... clone3 resumed> => {parent_tid=[5876]}, 88) = 5876
[pid 5876] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5875] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5876] <... set_robust_list resumed>) = 0
[pid 5875] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5876] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5876] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5875] <... futex resumed>) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5876] memfd_create("syzkaller", 0) = 3
[pid 5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5876] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5876] munmap(0x7f302fc00000, 138412032) = 0
[pid 5876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5876] close(3) = 0
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5876] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5875] <... futex resumed>) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] <... openat resumed>) = 3
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5876] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5875] <... futex resumed>) = 0
[pid 5876] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] <... openat resumed>) = 4
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5876] <... futex resumed>) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5876] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5875] <... futex resumed>) = 0
[pid 5876] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] <... openat resumed>) = 6
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5876] <... futex resumed>) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5876] <... futex resumed>) = 0
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 8
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5876] <... futex resumed>) = 0
[pid 5875] <... futex resumed>) = 1
[pid 5876] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5875] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5876] <... openat resumed>) = 9
[pid 5876] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5875] <... futex resumed>) = 0
[pid 5876] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5875] exit_group(0 <unfinished ...>
[pid 5876] <... futex resumed>) = ?
[pid 5875] <... exit_group resumed>) = ?
[pid 5876] +++ exited with 0 +++
[pid 5875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5877
./strace-static-x86_64: Process 5877 attached
[pid 5877] set_robust_list(0x55557ef05760, 24) = 0
[pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5877] setpgid(0, 0) = 0
[pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5877] write(3, "1000", 4) = 4
[pid 5877] close(3) = 0
executing program
[pid 5877] write(1, "executing program\n", 18) = 18
[pid 5877] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5877] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5877] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5877] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5877] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5877] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5878 attached
<unfinished ...>
[pid 5878] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5877] <... clone3 resumed> => {parent_tid=[5878]}, 88) = 5878
[pid 5878] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5878] <... futex resumed>) = 0
[pid 5878] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... memfd_create resumed>) = 3
[pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5878] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5878] munmap(0x7f302fc00000, 138412032) = 0
[pid 5878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5878] close(3) = 0
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5877] <... futex resumed>) = 0
[pid 5878] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... openat resumed>) = 3
[pid 5877] <... futex resumed>) = 0
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5877] <... futex resumed>) = 0
[pid 5878] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5877] <... futex resumed>) = 0
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... futex resumed>) = 0
[pid 5877] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5877] <... futex resumed>) = 0
[pid 5878] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5877] <... futex resumed>) = 0
[pid 5878] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5878] <... openat resumed>) = 4
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... futex resumed>) = 0
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... futex resumed>) = 0
[pid 5877] <... futex resumed>) = 1
[pid 5878] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... openat resumed>) = 5
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5877] <... futex resumed>) = 0
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5878] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5877] <... futex resumed>) = 0
[pid 5878] <... openat resumed>) = 6
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... futex resumed>) = 0
[pid 5877] <... futex resumed>) = 1
[pid 5878] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] <... futex resumed>) = 0
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... futex resumed>) = 0
[pid 5877] <... futex resumed>) = 1
[pid 5878] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... openat resumed>) = 8
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5877] <... futex resumed>) = 0
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5877] <... futex resumed>) = 0
[pid 5878] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5877] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5878] <... openat resumed>) = 9
[pid 5878] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5877] <... futex resumed>) = 0
[pid 5878] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5877] exit_group(0 <unfinished ...>
[pid 5878] <... futex resumed>) = ?
[pid 5877] <... exit_group resumed>) = ?
[pid 5878] +++ exited with 0 +++
[pid 5877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5879 attached
, child_tidptr=0x55557ef05750) = 5879
[pid 5879] set_robust_list(0x55557ef05760, 24) = 0
[pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5879] setpgid(0, 0) = 0
[pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5879] write(3, "1000", 4) = 4
executing program
[pid 5879] close(3) = 0
[pid 5879] write(1, "executing program\n", 18) = 18
[pid 5879] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5879] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5879] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5879] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5879] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5880 attached
<unfinished ...>
[pid 5880] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5879] <... clone3 resumed> => {parent_tid=[5880]}, 88) = 5880
[pid 5880] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5879] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5880] <... set_robust_list resumed>) = 0
[pid 5880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5879] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5879] <... futex resumed>) = 0
[pid 5880] <... memfd_create resumed>) = 3
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5880] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5880] munmap(0x7f302fc00000, 138412032) = 0
[pid 5880] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5880] close(3) = 0
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5880] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5879] <... futex resumed>) = 0
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] <... futex resumed>) = 0
[pid 5879] <... futex resumed>) = 1
[pid 5880] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] <... openat resumed>) = 3
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5879] <... futex resumed>) = 0
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5879] <... futex resumed>) = 0
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] <... futex resumed>) = 1
[pid 5880] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5880] <... openat resumed>) = 4
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5879] <... futex resumed>) = 0
[pid 5880] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] <... openat resumed>) = 5
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5880] <... openat resumed>) = 6
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5879] <... futex resumed>) = 0
[pid 5880] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] <... openat resumed>) = 7
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] <... openat resumed>) = 8
[pid 5879] <... futex resumed>) = 0
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5880] <... futex resumed>) = 0
[pid 5879] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5880] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5879] <... futex resumed>) = 0
[pid 5880] <... openat resumed>) = 9
[pid 5879] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5880] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5879] <... futex resumed>) = 0
[pid 5880] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5879] exit_group(0 <unfinished ...>
[pid 5880] <... futex resumed>) = ?
[pid 5879] <... exit_group resumed>) = ?
[pid 5880] +++ exited with 0 +++
[pid 5879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5881 attached
, child_tidptr=0x55557ef05750) = 5881
[pid 5881] set_robust_list(0x55557ef05760, 24) = 0
[pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5881] setpgid(0, 0) = 0
[pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5881] write(3, "1000", 4) = 4
[pid 5881] close(3) = 0
executing program
[pid 5881] write(1, "executing program\n", 18) = 18
[pid 5881] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5881] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5881] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5881] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5881] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5881] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5882 attached
<unfinished ...>
[pid 5882] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5882] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5881] <... clone3 resumed> => {parent_tid=[5882]}, 88) = 5882
[pid 5882] <... set_robust_list resumed>) = 0
[pid 5881] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5882] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5881] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5882] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5882] <... memfd_create resumed>) = 3
[pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5882] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5882] munmap(0x7f302fc00000, 138412032) = 0
[pid 5882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5882] close(3) = 0
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5882] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid 5881] <... futex resumed>) = 0
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5881] <... futex resumed>) = 0
[pid 5882] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5881] <... futex resumed>) = 0
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] <... futex resumed>) = 0
[pid 5881] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5881] <... futex resumed>) = 0
[pid 5882] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5881] <... futex resumed>) = 0
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5882] <... openat resumed>) = 4
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5881] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5882] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] <... openat resumed>) = 5
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5882] <... futex resumed>) = 1
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] <... openat resumed>) = 6
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] <... futex resumed>) = 0
[pid 5882] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5881] <... futex resumed>) = 1
[pid 5882] <... openat resumed>) = 7
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5881] <... futex resumed>) = 0
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5881] <... futex resumed>) = 0
[pid 5882] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] <... openat resumed>) = 8
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5881] <... futex resumed>) = 0
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5881] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5882] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5881] <... futex resumed>) = 0
[pid 5881] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5882] <... openat resumed>) = 9
[pid 5882] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5881] <... futex resumed>) = 0
[pid 5882] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5881] exit_group(0 <unfinished ...>
[pid 5882] <... futex resumed>) = ?
[pid 5881] <... exit_group resumed>) = ?
[pid 5882] +++ exited with 0 +++
[pid 5881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5883 attached
, child_tidptr=0x55557ef05750) = 5883
[pid 5883] set_robust_list(0x55557ef05760, 24) = 0
[pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5883] setpgid(0, 0) = 0
[pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5883] write(3, "1000", 4) = 4
[pid 5883] close(3executing program
) = 0
[pid 5883] write(1, "executing program\n", 18) = 18
[pid 5883] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5883] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5883] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5883] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5883] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5883] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5884 attached
<unfinished ...>
[pid 5884] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5884] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5883] <... clone3 resumed> => {parent_tid=[5884]}, 88) = 5884
[pid 5884] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5883] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5884] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5883] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5883] <... futex resumed>) = 0
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5884] memfd_create("syzkaller", 0) = 3
[pid 5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5884] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5884] munmap(0x7f302fc00000, 138412032) = 0
[pid 5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5884] close(3) = 0
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = 0
[pid 5883] <... futex resumed>) = 1
[pid 5884] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... openat resumed>) = 3
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5883] <... futex resumed>) = 0
[pid 5884] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = 0
[pid 5883] <... futex resumed>) = 1
[pid 5884] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5883] <... futex resumed>) = 0
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... openat resumed>) = 4
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5883] <... futex resumed>) = 0
[pid 5884] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... openat resumed>) = 5
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = 0
[pid 5884] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5883] <... futex resumed>) = 1
[pid 5884] <... openat resumed>) = 6
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5883] <... futex resumed>) = 0
[pid 5884] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... openat resumed>) = 7
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... openat resumed>) = 8
[pid 5883] <... futex resumed>) = 0
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5883] <... futex resumed>) = 0
[pid 5884] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5883] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5884] <... openat resumed>) = 9
[pid 5884] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5883] <... futex resumed>) = 0
[pid 5884] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5883] exit_group(0 <unfinished ...>
[pid 5884] <... futex resumed>) = ?
[pid 5883] <... exit_group resumed>) = ?
[pid 5884] +++ exited with 0 +++
[pid 5883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5885 attached
, child_tidptr=0x55557ef05750) = 5885
[pid 5885] set_robust_list(0x55557ef05760, 24) = 0
[pid 5885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5885] setpgid(0, 0) = 0
[pid 5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5885] write(3, "1000", 4) = 4
[pid 5885] close(3executing program
) = 0
[pid 5885] write(1, "executing program\n", 18) = 18
[pid 5885] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5885] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5885] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5885] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5885] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5885] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5886 attached
=> {parent_tid=[5886]}, 88) = 5886
[pid 5886] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5885] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5886] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5886] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5885] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5886] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5885] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5886] <... memfd_create resumed>) = 3
[pid 5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5886] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5886] munmap(0x7f302fc00000, 138412032) = 0
[pid 5886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5886] close(3) = 0
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5885] <... futex resumed>) = 0
[pid 5886] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5886] <... openat resumed>) = 3
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5886] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5885] <... futex resumed>) = 0
[pid 5886] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5886] <... futex resumed>) = 0
[pid 5886] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5885] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5886] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5885] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] <... openat resumed>) = 4
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5886] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5885] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5886] <... futex resumed>) = 0
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5885] <... futex resumed>) = 0
[pid 5886] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5886] <... futex resumed>) = 0
[pid 5886] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] <... openat resumed>) = 6
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5885] <... futex resumed>) = 0
[pid 5886] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] <... futex resumed>) = 0
[pid 5885] <... futex resumed>) = 1
[pid 5886] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] <... openat resumed>) = 7
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5885] <... futex resumed>) = 0
[pid 5886] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5885] <... futex resumed>) = 0
[pid 5886] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] <... openat resumed>) = 8
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5885] <... futex resumed>) = 0
[pid 5886] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5885] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5886] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5885] <... futex resumed>) = 0
[pid 5886] <... openat resumed>) = 9
[pid 5885] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5886] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5885] <... futex resumed>) = 0
[pid 5886] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5885] exit_group(0 <unfinished ...>
[pid 5886] <... futex resumed>) = ?
[pid 5885] <... exit_group resumed>) = ?
[pid 5886] +++ exited with 0 +++
[pid 5885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5885, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5887 attached
, child_tidptr=0x55557ef05750) = 5887
[pid 5887] set_robust_list(0x55557ef05760, 24) = 0
[pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5887] setpgid(0, 0) = 0
[pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5887] write(3, "1000", 4) = 4
[pid 5887] close(3) = 0
[pid 5887] write(1, "executing program\n", 18executing program
) = 18
[pid 5887] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5887] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5887] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5887] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5887] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5887] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5888 attached
<unfinished ...>
[pid 5888] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5887] <... clone3 resumed> => {parent_tid=[5888]}, 88) = 5888
[pid 5888] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... futex resumed>) = 0
[pid 5887] <... futex resumed>) = 1
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5888] memfd_create("syzkaller", 0) = 3
[pid 5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5888] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5888] munmap(0x7f302fc00000, 138412032) = 0
[pid 5888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5888] close(3) = 0
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5887] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] <... openat resumed>) = 3
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5887] <... futex resumed>) = 0
[pid 5888] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5887] <... futex resumed>) = 0
[pid 5888] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5888] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... futex resumed>) = 0
[pid 5887] <... futex resumed>) = 1
[pid 5888] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] <... openat resumed>) = 5
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... openat resumed>) = 6
[pid 5887] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... openat resumed>) = 7
[pid 5887] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5887] <... futex resumed>) = 0
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] <... futex resumed>) = 1
[pid 5888] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 8
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5888] <... futex resumed>) = 0
[pid 5887] <... futex resumed>) = 1
[pid 5888] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5887] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5888] <... openat resumed>) = 9
[pid 5888] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5887] <... futex resumed>) = 0
[pid 5888] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5887] exit_group(0 <unfinished ...>
[pid 5888] <... futex resumed>) = ?
[pid 5888] +++ exited with 0 +++
[pid 5887] <... exit_group resumed>) = ?
[pid 5887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5889 attached
, child_tidptr=0x55557ef05750) = 5889
[pid 5889] set_robust_list(0x55557ef05760, 24) = 0
[pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5889] setpgid(0, 0) = 0
[pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5889] write(3, "1000", 4) = 4
[pid 5889] close(3) = 0
executing program
[pid 5889] write(1, "executing program\n", 18) = 18
[pid 5889] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5889] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5889] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5889] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5889] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5889] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5890 attached
<unfinished ...>
[pid 5890] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5889] <... clone3 resumed> => {parent_tid=[5890]}, 88) = 5890
[pid 5890] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5889] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5890] <... set_robust_list resumed>) = 0
[pid 5889] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5890] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5889] <... futex resumed>) = 0
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5890] memfd_create("syzkaller", 0) = 3
[pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5890] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5890] munmap(0x7f302fc00000, 138412032) = 0
[pid 5890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5890] close(3) = 0
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5890] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5889] <... futex resumed>) = 0
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] <... futex resumed>) = 0
[pid 5890] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5889] <... futex resumed>) = 1
[pid 5890] <... openat resumed>) = 3
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5889] <... futex resumed>) = 0
[pid 5890] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5889] <... futex resumed>) = 0
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] <... futex resumed>) = 0
[pid 5889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5890] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5889] <... futex resumed>) = 0
[pid 5890] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5889] <... futex resumed>) = 0
[pid 5890] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] <... openat resumed>) = 4
[pid 5889] <... futex resumed>) = 0
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5890] <... futex resumed>) = 0
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5889] <... futex resumed>) = 0
[pid 5890] <... openat resumed>) = 5
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5889] <... futex resumed>) = 0
[pid 5890] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5889] <... futex resumed>) = 0
[pid 5890] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] <... openat resumed>) = 6
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5890] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5889] <... futex resumed>) = 0
[pid 5890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5889] <... futex resumed>) = 0
[pid 5890] <... openat resumed>) = 7
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5890] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5889] <... futex resumed>) = 0
[pid 5890] <... openat resumed>) = 8
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5890] <... futex resumed>) = 0
[pid 5889] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5890] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5889] <... futex resumed>) = 0
[pid 5890] <... openat resumed>) = 9
[pid 5889] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5890] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5890] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5889] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5889] exit_group(0 <unfinished ...>
[pid 5890] <... futex resumed>) = ?
[pid 5890] +++ exited with 0 +++
[pid 5889] <... exit_group resumed>) = ?
[pid 5889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5889, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5891 attached
, child_tidptr=0x55557ef05750) = 5891
[pid 5891] set_robust_list(0x55557ef05760, 24) = 0
[pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5891] setpgid(0, 0) = 0
[pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5891] write(3, "1000", 4) = 4
executing program
[pid 5891] close(3) = 0
[pid 5891] write(1, "executing program\n", 18) = 18
[pid 5891] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5891] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5891] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5891] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5891] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5891] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5891] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5892 attached
<unfinished ...>
[pid 5892] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5891] <... clone3 resumed> => {parent_tid=[5892]}, 88) = 5892
[pid 5892] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5891] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5892] <... set_robust_list resumed>) = 0
[pid 5892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = 0
[pid 5891] <... futex resumed>) = 1
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5892] memfd_create("syzkaller", 0) = 3
[pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5892] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5892] munmap(0x7f302fc00000, 138412032) = 0
[pid 5892] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5892] close(3) = 0
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = 0
[pid 5891] <... futex resumed>) = 1
[pid 5892] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 3
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = 0
[pid 5891] <... futex resumed>) = 1
[pid 5892] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5892] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5891] <... futex resumed>) = 0
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 4
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5891] <... futex resumed>) = 0
[pid 5892] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 5
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = 0
[pid 5891] <... futex resumed>) = 1
[pid 5892] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 6
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5891] <... futex resumed>) = 0
[pid 5892] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 7
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5891] <... futex resumed>) = 0
[pid 5892] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 8
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5892] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5891] <... futex resumed>) = 0
[pid 5891] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5892] <... openat resumed>) = 9
[pid 5892] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5891] <... futex resumed>) = 0
[pid 5892] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5891] exit_group(0 <unfinished ...>
[pid 5892] <... futex resumed>) = ?
[pid 5891] <... exit_group resumed>) = ?
[pid 5892] +++ exited with 0 +++
[pid 5891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5893 attached
<unfinished ...>
[pid 5893] set_robust_list(0x55557ef05760, 24) = 0
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5893
[pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5893] setpgid(0, 0) = 0
[pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5893] write(3, "1000", 4) = 4
[pid 5893] close(3) = 0
executing program
[pid 5893] write(1, "executing program\n", 18) = 18
[pid 5893] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5893] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5893] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5893] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5893] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5893] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5893] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5894 attached
<unfinished ...>
[pid 5894] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5893] <... clone3 resumed> => {parent_tid=[5894]}, 88) = 5894
[pid 5894] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5893] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5894] <... set_robust_list resumed>) = 0
[pid 5894] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5893] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5894] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] <... futex resumed>) = 0
[pid 5893] <... futex resumed>) = 1
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5894] memfd_create("syzkaller", 0) = 3
[pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5894] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5894] munmap(0x7f302fc00000, 138412032) = 0
[pid 5894] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5894] close(3) = 0
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] <... futex resumed>) = 0
[pid 5893] <... futex resumed>) = 1
[pid 5894] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] <... openat resumed>) = 3
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5893] <... futex resumed>) = 0
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5894] <... futex resumed>) = 0
[pid 5894] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5893] <... futex resumed>) = 0
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5893] <... futex resumed>) = 0
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] <... openat resumed>) = 5
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] <... futex resumed>) = 0
[pid 5893] <... futex resumed>) = 1
[pid 5894] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] <... openat resumed>) = 6
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5893] <... futex resumed>) = 0
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5894] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5893] <... futex resumed>) = 0
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] <... openat resumed>) = 8
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5893] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5893] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5894] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5894] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5893] <... futex resumed>) = 0
[pid 5894] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5893] exit_group(0 <unfinished ...>
[pid 5894] <... futex resumed>) = ?
[pid 5893] <... exit_group resumed>) = ?
[pid 5894] +++ exited with 0 +++
[pid 5893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5895 attached
, child_tidptr=0x55557ef05750) = 5895
[pid 5895] set_robust_list(0x55557ef05760, 24) = 0
[pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5895] setpgid(0, 0) = 0
[pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5895] write(3, "1000", 4) = 4
[pid 5895] close(3) = 0
executing program
[pid 5895] write(1, "executing program\n", 18) = 18
[pid 5895] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5895] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5895] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5895] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5895] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5895] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5896 attached
=> {parent_tid=[5896]}, 88) = 5896
[pid 5896] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5896] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5895] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] <... futex resumed>) = 0
[pid 5895] <... futex resumed>) = 1
[pid 5896] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... memfd_create resumed>) = 3
[pid 5896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5896] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5896] munmap(0x7f302fc00000, 138412032) = 0
[pid 5896] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5896] close(3) = 0
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5896] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] <... futex resumed>) = 0
[pid 5895] <... futex resumed>) = 1
[pid 5896] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5895] <... futex resumed>) = 0
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... openat resumed>) = 4
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5895] <... futex resumed>) = 0
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... openat resumed>) = 5
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5895] <... futex resumed>) = 0
[pid 5896] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... openat resumed>) = 6
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5895] <... futex resumed>) = 0
[pid 5896] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... futex resumed>) = 0
[pid 5895] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5895] <... futex resumed>) = 0
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] <... openat resumed>) = 8
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5895] <... futex resumed>) = 0
[pid 5896] <... futex resumed>) = 1
[pid 5895] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5896] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5895] <... futex resumed>) = 0
[pid 5896] <... openat resumed>) = 9
[pid 5895] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5896] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5895] <... futex resumed>) = 0
[pid 5896] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5895] exit_group(0 <unfinished ...>
[pid 5896] <... futex resumed>) = ?
[pid 5895] <... exit_group resumed>) = ?
[pid 5896] +++ exited with 0 +++
[pid 5895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5897 attached
, child_tidptr=0x55557ef05750) = 5897
[pid 5897] set_robust_list(0x55557ef05760, 24) = 0
[pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5897] setpgid(0, 0) = 0
[pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5897] write(3, "1000", 4) = 4
[pid 5897] close(3) = 0
executing program
[pid 5897] write(1, "executing program\n", 18) = 18
[pid 5897] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5897] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5897] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5897] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5897] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5897] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5897] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5898 attached
<unfinished ...>
[pid 5898] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5897] <... clone3 resumed> => {parent_tid=[5898]}, 88) = 5898
[pid 5898] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5897] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5898] <... set_robust_list resumed>) = 0
[pid 5897] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5898] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5897] <... futex resumed>) = 0
[pid 5898] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... memfd_create resumed>) = 3
[pid 5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5898] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5898] munmap(0x7f302fc00000, 138412032) = 0
[pid 5898] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5898] close(3) = 0
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... futex resumed>) = 0
[pid 5897] <... futex resumed>) = 1
[pid 5898] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... openat resumed>) = 3
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5897] <... futex resumed>) = 0
[pid 5898] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5898] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... openat resumed>) = 4
[pid 5897] <... futex resumed>) = 0
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5898] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5897] <... futex resumed>) = 0
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5897] <... futex resumed>) = 0
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... openat resumed>) = 7
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5897] <... futex resumed>) = 0
[pid 5898] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... openat resumed>) = 8
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5898] <... futex resumed>) = 0
[pid 5897] <... futex resumed>) = 1
[pid 5898] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5897] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5898] <... openat resumed>) = 9
[pid 5898] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5897] <... futex resumed>) = 0
[pid 5898] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5897] exit_group(0 <unfinished ...>
[pid 5898] <... futex resumed>) = ?
[pid 5897] <... exit_group resumed>) = ?
[pid 5898] +++ exited with 0 +++
[pid 5897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5899 attached
<unfinished ...>
[pid 5899] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5899
[pid 5899] <... set_robust_list resumed>) = 0
[pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5899] setpgid(0, 0) = 0
[pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5899] write(3, "1000", 4) = 4
executing program
[pid 5899] close(3) = 0
[pid 5899] write(1, "executing program\n", 18) = 18
[pid 5899] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5899] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5899] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5899] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5899] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5899] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5900 attached
=> {parent_tid=[5900]}, 88) = 5900
[pid 5900] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5899] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5900] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5899] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5900] <... set_robust_list resumed>) = 0
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5899] <... futex resumed>) = 0
[pid 5900] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5900] memfd_create("syzkaller", 0) = 3
[pid 5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5900] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5900] munmap(0x7f302fc00000, 138412032) = 0
[pid 5900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5900] close(3) = 0
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5899] <... futex resumed>) = 0
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... openat resumed>) = 3
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] <... futex resumed>) = 0
[pid 5900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5899] <... futex resumed>) = 0
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5899] <... futex resumed>) = 0
[pid 5900] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] <... futex resumed>) = 0
[pid 5899] <... futex resumed>) = 1
[pid 5900] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... openat resumed>) = 5
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5900] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5899] <... futex resumed>) = 0
[pid 5900] <... openat resumed>) = 6
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5899] <... futex resumed>) = 0
[pid 5900] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... openat resumed>) = 7
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] <... futex resumed>) = 0
[pid 5899] <... futex resumed>) = 1
[pid 5900] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... openat resumed>) = 8
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5899] <... futex resumed>) = 0
[pid 5899] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5900] <... futex resumed>) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5899] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5900] <... openat resumed>) = 9
[pid 5900] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5899] <... futex resumed>) = 0
[pid 5900] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5899] exit_group(0 <unfinished ...>
[pid 5900] <... futex resumed>) = ?
[pid 5899] <... exit_group resumed>) = ?
[pid 5900] +++ exited with 0 +++
[pid 5899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5901
./strace-static-x86_64: Process 5901 attached
[pid 5901] set_robust_list(0x55557ef05760, 24) = 0
[pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5901] setpgid(0, 0) = 0
[pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5901] write(3, "1000", 4) = 4
[pid 5901] close(3executing program
) = 0
[pid 5901] write(1, "executing program\n", 18) = 18
[pid 5901] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5901] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5901] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5902 attached
<unfinished ...>
[pid 5902] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5901] <... clone3 resumed> => {parent_tid=[5902]}, 88) = 5902
[pid 5902] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5901] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5902] <... set_robust_list resumed>) = 0
[pid 5901] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5902] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5901] <... futex resumed>) = 0
[pid 5902] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... memfd_create resumed>) = 3
[pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5902] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5902] munmap(0x7f302fc00000, 138412032) = 0
[pid 5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5902] close(3) = 0
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5902] <... futex resumed>) = 0
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = 0
[pid 5901] <... futex resumed>) = 1
[pid 5902] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = 0
[pid 5901] <... futex resumed>) = 1
[pid 5902] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = 0
[pid 5901] <... futex resumed>) = 1
[pid 5902] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... openat resumed>) = 4
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = 0
[pid 5901] <... futex resumed>) = 1
[pid 5902] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... openat resumed>) = 5
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = 0
[pid 5901] <... futex resumed>) = 1
[pid 5902] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... openat resumed>) = 6
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5901] <... futex resumed>) = 0
[pid 5902] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... openat resumed>) = 7
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5901] <... futex resumed>) = 0
[pid 5902] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... openat resumed>) = 8
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5901] <... futex resumed>) = 0
[pid 5902] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5901] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5902] <... openat resumed>) = 9
[pid 5902] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5901] <... futex resumed>) = 0
[pid 5902] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5901] exit_group(0 <unfinished ...>
[pid 5902] <... futex resumed>) = ?
[pid 5901] <... exit_group resumed>) = ?
[pid 5902] +++ exited with 0 +++
[pid 5901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5903 attached
, child_tidptr=0x55557ef05750) = 5903
[pid 5903] set_robust_list(0x55557ef05760, 24) = 0
[pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5903] setpgid(0, 0) = 0
[pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5903] write(3, "1000", 4) = 4
[pid 5903] close(3) = 0
executing program
[pid 5903] write(1, "executing program\n", 18) = 18
[pid 5903] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5903] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5903] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5903] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5903] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5903] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5904 attached
<unfinished ...>
[pid 5904] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5903] <... clone3 resumed> => {parent_tid=[5904]}, 88) = 5904
[pid 5904] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5903] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5904] <... set_robust_list resumed>) = 0
[pid 5904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] <... futex resumed>) = 0
[pid 5903] <... futex resumed>) = 1
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5904] memfd_create("syzkaller", 0) = 3
[pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5904] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5904] munmap(0x7f302fc00000, 138412032) = 0
[pid 5904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5904] close(3) = 0
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5903] <... futex resumed>) = 0
[pid 5904] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... openat resumed>) = 3
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5903] <... futex resumed>) = 0
[pid 5904] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... futex resumed>) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5904] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0) = -1 EEXIST (File exists)
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} <unfinished ...>
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5904] <... futex resumed>) = 0
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5903] <... futex resumed>) = 0
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... futex resumed>) = 0
[pid 5903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5903] <... futex resumed>) = 0
[pid 5904] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... openat resumed>) = 5
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5903] <... futex resumed>) = 0
[pid 5904] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... openat resumed>) = 6
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5903] <... futex resumed>) = 0
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... openat resumed>) = 7
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5903] <... futex resumed>) = 0
[pid 5904] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... openat resumed>) = 8
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5903] <... futex resumed>) = 0
[pid 5904] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5903] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5904] <... openat resumed>) = 9
[pid 5904] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5903] <... futex resumed>) = 0
[pid 5904] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5903] exit_group(0 <unfinished ...>
[pid 5904] <... futex resumed>) = ?
[pid 5903] <... exit_group resumed>) = ?
[pid 5904] +++ exited with 0 +++
[pid 5903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5905 attached
, child_tidptr=0x55557ef05750) = 5905
[pid 5905] set_robust_list(0x55557ef05760, 24) = 0
[pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5905] setpgid(0, 0) = 0
[pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5905] write(3, "1000", 4) = 4
[pid 5905] close(3executing program
) = 0
[pid 5905] write(1, "executing program\n", 18) = 18
[pid 5905] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5905] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5905] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5905] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5906 attached
<unfinished ...>
[pid 5906] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5905] <... clone3 resumed> => {parent_tid=[5906]}, 88) = 5906
[pid 5906] <... rseq resumed>) = 0
[pid 5905] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5906] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5905] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5906] <... set_robust_list resumed>) = 0
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5906] memfd_create("syzkaller", 0) = 3
[pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5906] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5906] munmap(0x7f302fc00000, 138412032) = 0
[pid 5906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5906] close(3) = 0
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5906] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] <... futex resumed>) = 0
[pid 5905] <... futex resumed>) = 1
[pid 5906] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] <... openat resumed>) = 3
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... futex resumed>) = 1
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... futex resumed>) = 1
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... futex resumed>) = 1
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] <... openat resumed>) = 4
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5905] <... futex resumed>) = 0
[pid 5906] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5905] <... futex resumed>) = 0
[pid 5906] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] <... openat resumed>) = 5
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5906] <... futex resumed>) = 1
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] <... openat resumed>) = 6
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5905] <... futex resumed>) = 0
[pid 5906] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5905] <... futex resumed>) = 0
[pid 5906] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] <... openat resumed>) = 7
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5905] <... futex resumed>) = 0
[pid 5906] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5906] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] <... openat resumed>) = 8
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5905] <... futex resumed>) = 0
[pid 5905] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5905] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5906] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5906] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5906] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5905] <... futex resumed>) = 0
[pid 5905] exit_group(0 <unfinished ...>
[pid 5906] <... futex resumed>) = ?
[pid 5905] <... exit_group resumed>) = ?
[pid 5906] +++ exited with 0 +++
[pid 5905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5907 attached
, child_tidptr=0x55557ef05750) = 5907
[pid 5907] set_robust_list(0x55557ef05760, 24) = 0
[pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5907] setpgid(0, 0) = 0
[pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5907] write(3, "1000", 4) = 4
[pid 5907] close(3) = 0
executing program
[pid 5907] write(1, "executing program\n", 18) = 18
[pid 5907] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5907] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5907] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5908 attached
=> {parent_tid=[5908]}, 88) = 5908
[pid 5908] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5908] set_robust_list(0x7f30381959a0, 24) = 0
[pid 5908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = 0
[pid 5907] <... futex resumed>) = 1
[pid 5908] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... memfd_create resumed>) = 3
[pid 5908] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5908] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5908] munmap(0x7f302fc00000, 138412032) = 0
[pid 5908] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5908] close(3) = 0
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5907] <... futex resumed>) = 0
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... openat resumed>) = 3
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5907] <... futex resumed>) = 0
[pid 5908] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = 0
[pid 5907] <... futex resumed>) = 1
[pid 5908] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5907] <... futex resumed>) = 0
[pid 5908] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... openat resumed>) = 4
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = 0
[pid 5907] <... futex resumed>) = 1
[pid 5908] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... openat resumed>) = 5
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = 0
[pid 5907] <... futex resumed>) = 1
[pid 5908] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... openat resumed>) = 6
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5907] <... futex resumed>) = 0
[pid 5908] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] <... openat resumed>) = 7
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5908] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5907] <... futex resumed>) = 0
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 8
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5908] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5907] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5908] <... futex resumed>) = 0
[pid 5907] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5908] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 9
[pid 5908] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5907] <... futex resumed>) = 0
[pid 5907] exit_group(0) = ?
[pid 5908] +++ exited with 0 +++
[pid 5907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5909
./strace-static-x86_64: Process 5909 attached
[pid 5909] set_robust_list(0x55557ef05760, 24) = 0
[pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5909] setpgid(0, 0) = 0
[pid 5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5909] write(3, "1000", 4) = 4
[pid 5909] close(3) = 0
[pid 5909] write(1, "executing program\n", 18executing program
) = 18
[pid 5909] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5909] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5909] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5909] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5910 attached
<unfinished ...>
[pid 5910] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5909] <... clone3 resumed> => {parent_tid=[5910]}, 88) = 5910
[pid 5910] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5909] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5910] <... set_robust_list resumed>) = 0
[pid 5909] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5910] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5909] <... futex resumed>) = 0
[pid 5910] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5910] <... memfd_create resumed>) = 3
[pid 5910] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5910] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5910] munmap(0x7f302fc00000, 138412032) = 0
[pid 5910] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5910] close(3) = 0
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5909] <... futex resumed>) = 0
[pid 5910] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] <... openat resumed>) = 3
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] <... futex resumed>) = 0
[pid 5909] <... futex resumed>) = 1
[pid 5910] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5909] <... futex resumed>) = 0
[pid 5910] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5909] <... futex resumed>) = 0
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] <... openat resumed>) = 4
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5909] <... futex resumed>) = 0
[pid 5910] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] <... openat resumed>) = 5
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5909] <... futex resumed>) = 0
[pid 5910] <... futex resumed>) = 1
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5909] <... futex resumed>) = 0
[pid 5910] <... openat resumed>) = 6
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] <... openat resumed>) = 7
[pid 5909] <... futex resumed>) = 0
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5909] <... futex resumed>) = 0
[pid 5910] <... futex resumed>) = 1
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5909] <... futex resumed>) = 0
[pid 5910] <... openat resumed>) = 8
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5909] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5909] <... futex resumed>) = 0
[pid 5910] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5909] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5910] <... openat resumed>) = 9
[pid 5910] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5909] <... futex resumed>) = 0
[pid 5910] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5909] exit_group(0 <unfinished ...>
[pid 5910] <... futex resumed>) = ?
[pid 5910] +++ exited with 0 +++
[pid 5909] <... exit_group resumed>) = ?
[pid 5909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef05750) = 5911
./strace-static-x86_64: Process 5911 attached
[pid 5911] set_robust_list(0x55557ef05760, 24) = 0
[pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5911] setpgid(0, 0) = 0
[pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5911] write(3, "1000", 4) = 4
executing program
[pid 5911] close(3) = 0
[pid 5911] write(1, "executing program\n", 18) = 18
[pid 5911] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5911] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5911] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5912 attached
<unfinished ...>
[pid 5912] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5911] <... clone3 resumed> => {parent_tid=[5912]}, 88) = 5912
[pid 5912] <... rseq resumed>) = 0
[pid 5912] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5911] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5912] <... set_robust_list resumed>) = 0
[pid 5911] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5911] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... memfd_create resumed>) = 3
[pid 5912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5912] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5912] munmap(0x7f302fc00000, 138412032) = 0
[pid 5912] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5912] close(3) = 0
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] <... futex resumed>) = 0
[pid 5911] <... futex resumed>) = 1
[pid 5912] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... openat resumed>) = 3
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] mknodat(AT_FDCWD, "./file4", 000 <unfinished ...>
[pid 5911] <... futex resumed>) = 0
[pid 5912] <... mknodat resumed>) = -1 EEXIST (File exists)
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5911] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5912] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5911] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] <... futex resumed>) = 0
[pid 5911] <... futex resumed>) = 1
[pid 5912] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... openat resumed>) = 4
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5911] <... futex resumed>) = 0
[pid 5912] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... openat resumed>) = 5
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5911] <... futex resumed>) = 0
[pid 5912] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... openat resumed>) = 6
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5912] openat(AT_FDCWD, ".", O_RDONLY) = 7
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5911] <... futex resumed>) = 0
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... openat resumed>) = 8
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5911] <... futex resumed>) = 0
[pid 5912] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5911] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5912] <... openat resumed>) = 9
[pid 5912] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5911] <... futex resumed>) = 0
[pid 5912] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5911] exit_group(0 <unfinished ...>
[pid 5912] <... futex resumed>) = ?
[pid 5911] <... exit_group resumed>) = ?
[pid 5912] +++ exited with 0 +++
[pid 5911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5913 attached
, child_tidptr=0x55557ef05750) = 5913
[pid 5913] set_robust_list(0x55557ef05760, 24) = 0
[pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5913] setpgid(0, 0) = 0
[pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5913] write(3, "1000", 4) = 4
[pid 5913] close(3) = 0
executing program
[pid 5913] write(1, "executing program\n", 18) = 18
[pid 5913] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5913] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5913] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5913] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5914 attached
<unfinished ...>
[pid 5914] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053) = 0
[pid 5914] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5913] <... clone3 resumed> => {parent_tid=[5914]}, 88) = 5914
[pid 5914] <... set_robust_list resumed>) = 0
[pid 5913] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5914] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5913] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5914] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5913] <... futex resumed>) = 0
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... memfd_create resumed>) = 3
[pid 5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f302fc00000
[pid 5914] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5914] munmap(0x7f302fc00000, 138412032) = 0
[pid 5914] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5914] close(3) = 0
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] <... futex resumed>) = 0
[pid 5914] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... openat resumed>) = 3
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] mknodat(AT_FDCWD, "./file4", 000) = -1 EEXIST (File exists)
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] <... futex resumed>) = 0
[pid 5914] linkat(AT_FDCWD, "./file4", AT_FDCWD, "./file5", 0 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... linkat resumed>) = -1 EEXIST (File exists)
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] <... futex resumed>) = 0
[pid 5914] openat(AT_FDCWD, "cpuacct.usage_percpu_user", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... openat resumed>) = 4
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] <... futex resumed>) = 0
[pid 5914] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... openat resumed>) = 5
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] <... futex resumed>) = 0
[pid 5914] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... openat resumed>) = 6
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] openat(AT_FDCWD, ".", O_RDONLY <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... openat resumed>) = 7
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... futex resumed>) = 0
[pid 5913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5914] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5914] <... openat resumed>) = 8
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5913] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5914] <... futex resumed>) = 0
[pid 5913] <... futex resumed>) = 0
[pid 5914] openat(7, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 5913] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5914] <... openat resumed>) = 9
[pid 5914] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5913] <... futex resumed>) = 0
[pid 5914] futex(0x7f30382666c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5913] exit_group(0 <unfinished ...>
[pid 5914] <... futex resumed>) = ?
[pid 5914] +++ exited with 0 +++
[pid 5913] <... exit_group resumed>) = ?
[pid 5913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5915 attached
<unfinished ...>
[pid 5915] set_robust_list(0x55557ef05760, 24 <unfinished ...>
[pid 5823] <... clone resumed>, child_tidptr=0x55557ef05750) = 5915
[pid 5915] <... set_robust_list resumed>) = 0
[pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5915] setpgid(0, 0) = 0
[pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5915] write(3, "1000", 4) = 4
[pid 5915] close(3) = 0
[pid 5915] write(1, "executing program\n", 18executing program
) = 18
[pid 5915] futex(0x7f30382666cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5915] rt_sigaction(SIGRT_1, {sa_handler=0x7f3038204cd0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f30381ae7f0}, NULL, 8) = 0
[pid 5915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3038175000
[pid 5915] mprotect(0x7f3038176000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3038195990, parent_tid=0x7f3038195990, exit_signal=0, stack=0x7f3038175000, stack_size=0x20240, tls=0x7f30381956c0}./strace-static-x86_64: Process 5916 attached
<unfinished ...>
[pid 5916] rseq(0x7f3038195fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid 5915] <... clone3 resumed> => {parent_tid=[5916]}, 88) = 5916
[pid 5916] <... rseq resumed>) = 0
[pid 5916] set_robust_list(0x7f30381959a0, 24 <unfinished ...>
[pid 5915] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5916] <... set_robust_list resumed>) = 0
[pid 5915] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5916] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5915] futex(0x7f30382666c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5916] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5915] <... futex resumed>) = 0
[pid 5915] futex(0x7f30382666cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5916] memfd_create("syzkaller", 0) = 3