./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2072353114

<...>
Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts.
execve("./syz-executor2072353114", ["./syz-executor2072353114"], 0x7fffebb949c0 /* 10 vars */) = 0
brk(NULL)                               = 0x555588f7a000
brk(0x555588f7ad00)                     = 0x555588f7ad00
arch_prctl(ARCH_SET_FS, 0x555588f7a380) = 0
set_tid_address(0x555588f7a650)         = 5870
set_robust_list(0x555588f7a660, 24)     = 0
rseq(0x555588f7aca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2072353114", 4096) = 28
getrandom("\x75\x57\x53\x0a\x9e\xe7\x58\x31", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555588f7ad00
brk(0x555588f9bd00)                     = 0x555588f9bd00
brk(0x555588f9c000)                     = 0x555588f9c000
mprotect(0x7f72bf364000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
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 5871 attached
, child_tidptr=0x555588f7a650) = 5871
[pid  5871] set_robust_list(0x555588f7a660, 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] memfd_create("syzkaller", 0) = 3
[pid  5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5871] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5871] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5871] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5871] close(3)                    = 0
[pid  5871] close(4)                    = 0
[pid  5871] mkdir("./file1", 0777)      = 0
[  150.864831][ T5871] loop0: detected capacity change from 0 to 32768
[  150.887034][ T5871] =======================================================
[  150.887034][ T5871] WARNING: The mand mount option has been deprecated and
[  150.887034][ T5871]          and is ignored by this kernel. Remove the mand
[  150.887034][ T5871]          option from the mount to silence this warning.
[  150.887034][ T5871] =======================================================
[pid  5871] mount("/dev/loop0", "./file1", "ocfs2", MS_NOEXEC|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL, "acl,heartbeat=none,errors=remount-ro,coherency=full,coherency=full,localflocks,intr,noacl,") = 0
[pid  5871] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid  5871] chdir("./file1")            = 0
[pid  5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5871] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid  5871] fallocate(4, 0, 29521, 32769) = 0
[  150.956850][ T5871] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
[pid  5871] ioctl(4, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = 0
[pid  5871] exit_group(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=28 /* 0.28 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 5875 attached
 <unfinished ...>
[pid  5875] set_robust_list(0x555588f7a660, 24 <unfinished ...>
[pid  5870] <... clone resumed>, child_tidptr=0x555588f7a650) = 5875
[pid  5875] <... set_robust_list resumed>) = 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
executing program
[pid  5875] write(1, "executing program\n", 18) = 18
[pid  5875] memfd_create("syzkaller", 0) = 3
[pid  5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5875] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5875] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5875] close(3)                    = 0
[pid  5875] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5875] fallocate(3, 0, 29521, 32769) = 0
[pid  5875] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5875] exit_group(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=29 /* 0.29 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 5876 attached
, child_tidptr=0x555588f7a650) = 5876
[pid  5876] set_robust_list(0x555588f7a660, 24) = 0
[pid  5876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5876] setpgid(0, 0)               = 0
[pid  5876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5876] write(3, "1000", 4)         = 4
[pid  5876] close(3)                    = 0
[pid  5876] write(1, "executing program\n", 18executing program
) = 18
[pid  5876] memfd_create("syzkaller", 0) = 3
[pid  5876] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5876] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5876] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5876] close(3)                    = 0
[pid  5876] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5876] fallocate(3, 0, 29521, 32769) = 0
[pid  5876] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5876] exit_group(0)               = ?
[pid  5876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5876, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=29 /* 0.29 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 5877 attached
, child_tidptr=0x555588f7a650) = 5877
[pid  5877] set_robust_list(0x555588f7a660, 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
[pid  5877] write(1, "executing program\n", 18executing program
) = 18
[pid  5877] memfd_create("syzkaller", 0) = 3
[pid  5877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5877] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5877] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5877] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5877] close(3)                    = 0
[pid  5877] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5877] fallocate(3, 0, 29521, 32769) = 0
[pid  5877] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5877] exit_group(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=1 /* 0.01 s */, si_stime=28 /* 0.28 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=0x555588f7a650) = 5878
./strace-static-x86_64: Process 5878 attached
[pid  5878] set_robust_list(0x555588f7a660, 24) = 0
[pid  5878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5878] setpgid(0, 0)               = 0
[pid  5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5878] write(3, "1000", 4)         = 4
[pid  5878] close(3)                    = 0
executing program
[pid  5878] write(1, "executing program\n", 18) = 18
[pid  5878] memfd_create("syzkaller", 0) = 3
[pid  5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5878] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5878] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5878] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5878] close(3)                    = 0
[pid  5878] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5878] fallocate(3, 0, 29521, 32769) = 0
[pid  5878] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5878] exit_group(0)               = ?
[pid  5878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=29 /* 0.29 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 5879 attached
, child_tidptr=0x555588f7a650) = 5879
[pid  5879] set_robust_list(0x555588f7a660, 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
[pid  5879] close(3)                    = 0
[pid  5879] write(1, "executing program\n", 18executing program
) = 18
[pid  5879] memfd_create("syzkaller", 0) = 3
[pid  5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5879] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[  153.089478][ T2906] 
[  153.091893][ T2906] ======================================================
[  153.098942][ T2906] WARNING: possible circular locking dependency detected
[  153.105988][ T2906] 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #0 Not tainted
[  153.113131][ T2906] ------------------------------------------------------
[  153.120159][ T2906] kworker/u8:7/2906 is trying to acquire lock:
[  153.126333][ T2906] ffff8880769e42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x31e/0x1160
[  153.139580][ T2906] 
[  153.139580][ T2906] but task is already holding lock:
[  153.146967][ T2906] ffff8880769ea640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_truncate_log_worker+0x92/0x1a0
[  153.160000][ T2906] 
[  153.160000][ T2906] which lock already depends on the new lock.
[  153.160000][ T2906] 
[  153.170426][ T2906] 
[  153.170426][ T2906] the existing dependency chain (in reverse order) is:
[  153.179452][ T2906] 
[  153.179452][ T2906] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}:
[  153.190050][ T2906]        down_write+0x92/0x200
[  153.194857][ T2906]        ocfs2_move_extent+0x6ea/0x17f0
[  153.200527][ T2906]        ocfs2_move_extents+0xd69/0x1980
[  153.206240][ T2906]        ocfs2_ioctl_move_extents+0x54d/0xb20
[  153.212334][ T2906]        ocfs2_ioctl+0x3c6/0x6f0
[  153.217302][ T2906]        __x64_sys_ioctl+0x18e/0x210
[  153.222602][ T2906]        do_syscall_64+0xcd/0x4c0
[  153.227664][ T2906]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  153.234095][ T2906] 
[  153.234095][ T2906] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}:
[  153.244667][ T2906]        __lock_acquire+0x126f/0x1c90
[  153.250098][ T2906]        lock_acquire+0x179/0x350
[  153.255144][ T2906]        down_write+0x92/0x200
[  153.259959][ T2906]        __ocfs2_flush_truncate_log+0x31e/0x1160
[  153.266361][ T2906]        ocfs2_truncate_log_worker+0x9a/0x1a0
[  153.272469][ T2906]        process_one_work+0x9cf/0x1b70
[  153.277953][ T2906]        worker_thread+0x6c8/0xf10
[  153.283095][ T2906]        kthread+0x3c5/0x780
[  153.287719][ T2906]        ret_from_fork+0x5d7/0x6f0
[  153.292874][ T2906]        ret_from_fork_asm+0x1a/0x30
[  153.298184][ T2906] 
[  153.298184][ T2906] other info that might help us debug this:
[  153.298184][ T2906] 
[  153.308441][ T2906]  Possible unsafe locking scenario:
[  153.308441][ T2906] 
[  153.315913][ T2906]        CPU0                    CPU1
[  153.321283][ T2906]        ----                    ----
[  153.326653][ T2906]   lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6);
[  153.333981][ T2906]                                lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5);
[  153.343833][ T2906]                                lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6);
[  153.353690][ T2906]   lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5);
[  153.361017][ T2906] 
[  153.361017][ T2906]  *** DEADLOCK ***
[  153.361017][ T2906] 
[  153.369178][ T2906] 3 locks held by kworker/u8:7/2906:
[  153.374480][ T2906]  #0: ffff8880283f6948 ((wq_completion)ocfs2_wq){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70
[pid  5879] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5879] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[  153.385181][ T2906]  #1: ffffc9000b627d10 ((work_completion)(&(&osb->osb_truncate_log_wq)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70
[  153.398410][ T2906]  #2: ffff8880769ea640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_truncate_log_worker+0x92/0x1a0
[  153.411904][ T2906] 
[  153.411904][ T2906] stack backtrace:
[  153.417810][ T2906] CPU: 0 UID: 0 PID: 2906 Comm: kworker/u8:7 Not tainted 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #0 PREEMPT(full) 
[  153.417852][ T2906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  153.417876][ T2906] Workqueue: ocfs2_wq ocfs2_truncate_log_worker
[  153.417918][ T2906] Call Trace:
[  153.417930][ T2906]  <TASK>
[  153.417942][ T2906]  dump_stack_lvl+0x116/0x1f0
[  153.417993][ T2906]  print_circular_bug+0x275/0x350
[  153.418046][ T2906]  check_noncircular+0x14c/0x170
[  153.418102][ T2906]  __lock_acquire+0x126f/0x1c90
[  153.418162][ T2906]  lock_acquire+0x179/0x350
[  153.418191][ T2906]  ? __ocfs2_flush_truncate_log+0x31e/0x1160
[  153.418231][ T2906]  ? __pfx___might_resched+0x10/0x10
[pid  5879] close(3)                    = 0
[pid  5879] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[  153.418279][ T2906]  down_write+0x92/0x200
[  153.418308][ T2906]  ? __ocfs2_flush_truncate_log+0x31e/0x1160
[  153.418346][ T2906]  ? __pfx_down_write+0x10/0x10
[  153.418374][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.418414][ T2906]  ? lockdep_hardirqs_on+0x7c/0x110
[  153.418460][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.418498][ T2906]  ? _raw_spin_unlock_irqrestore+0x3b/0x80
[  153.418547][ T2906]  __ocfs2_flush_truncate_log+0x31e/0x1160
[  153.418587][ T2906]  ? __pfx___might_resched+0x10/0x10
[pid  5879] fallocate(3, 0, 29521, 32769) = 0
[pid  5879] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5879] exit_group(0)               = ?
[pid  5879] +++ exited with 0 +++
[  153.418632][ T2906]  ? __pfx___ocfs2_flush_truncate_log+0x10/0x10
[  153.418670][ T2906]  ? down_write+0x14d/0x200
[  153.418698][ T2906]  ? __pfx_down_write+0x10/0x10
[  153.418727][ T2906]  ? debug_object_deactivate+0x1ec/0x3a0
[  153.418773][ T2906]  ocfs2_truncate_log_worker+0x9a/0x1a0
[  153.418811][ T2906]  ? __pfx_ocfs2_truncate_log_worker+0x10/0x10
[  153.418849][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.418888][ T2906]  ? rcu_is_watching+0x12/0xc0
[  153.418932][ T2906]  process_one_work+0x9cf/0x1b70
[  153.418974][ T2906]  ? __pfx_process_one_work+0x10/0x10
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=55 /* 0.55 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[  153.419009][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.419052][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.419090][ T2906]  ? assign_work+0x1a0/0x250
[  153.419122][ T2906]  worker_thread+0x6c8/0xf10
[  153.419159][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.419198][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.419236][ T2906]  ? __kthread_parkme+0x19e/0x250
[  153.419282][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.419321][ T2906]  ? __pfx_worker_thread+0x10/0x10
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 5880 attached
, child_tidptr=0x555588f7a650) = 5880
[pid  5880] set_robust_list(0x555588f7a660, 24) = 0
[pid  5880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5880] setpgid(0, 0)               = 0
[  153.419355][ T2906]  kthread+0x3c5/0x780
[  153.419385][ T2906]  ? __pfx_kthread+0x10/0x10
[  153.419416][ T2906]  ? srso_alias_return_thunk+0x5/0xfbef5
[  153.419453][ T2906]  ? rcu_is_watching+0x12/0xc0
[  153.419494][ T2906]  ? __pfx_kthread+0x10/0x10
[  153.419524][ T2906]  ret_from_fork+0x5d7/0x6f0
[  153.419573][ T2906]  ? __pfx_kthread+0x10/0x10
[  153.419603][ T2906]  ret_from_fork_asm+0x1a/0x30
[  153.419648][ T2906]  </TASK>
[pid  5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5880] write(3, "1000", 4)         = 4
[pid  5880] close(3)                    = 0
executing program
[pid  5880] write(1, "executing program\n", 18) = 18
[pid  5880] memfd_create("syzkaller", 0) = 3
[pid  5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5880] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5880] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5880] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5880] close(3)                    = 0
[pid  5880] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5880] fallocate(3, 0, 29521, 32769) = 0
[pid  5880] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5880] exit_group(0)               = ?
[pid  5880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 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 5881 attached
 <unfinished ...>
[pid  5881] set_robust_list(0x555588f7a660, 24) = 0
[pid  5881] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5870] <... clone resumed>, child_tidptr=0x555588f7a650) = 5881
[pid  5881] <... prctl resumed>)        = 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
[pid  5881] write(1, "executing program\n", 18executing program
) = 18
[pid  5881] memfd_create("syzkaller", 0) = 3
[pid  5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5881] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5881] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5881] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5881] close(3)                    = 0
[pid  5881] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5881] fallocate(3, 0, 29521, 32769) = 0
[pid  5881] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5881] exit_group(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=1 /* 0.01 s */, si_stime=20 /* 0.20 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=0x555588f7a650) = 5882
./strace-static-x86_64: Process 5882 attached
[pid  5882] set_robust_list(0x555588f7a660, 24) = 0
[pid  5882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5882] setpgid(0, 0)               = 0
[pid  5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5882] write(3, "1000", 4)         = 4
[pid  5882] close(3)                    = 0
executing program
[pid  5882] write(1, "executing program\n", 18) = 18
[pid  5882] memfd_create("syzkaller", 0) = 3
[pid  5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5882] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5882] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5882] close(3)                    = 0
[pid  5882] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5882] fallocate(3, 0, 29521, 32769) = 0
[pid  5882] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5882] exit_group(0)               = ?
[pid  5882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 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 5883 attached
, child_tidptr=0x555588f7a650) = 5883
[pid  5883] set_robust_list(0x555588f7a660, 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(3)                    = 0
executing program
[pid  5883] write(1, "executing program\n", 18) = 18
[pid  5883] memfd_create("syzkaller", 0) = 3
[pid  5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5883] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5883] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5883] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5883] close(3)                    = 0
[pid  5883] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5883] fallocate(3, 0, 29521, 32769) = 0
[pid  5883] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5883] exit_group(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=20 /* 0.20 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=0x555588f7a650) = 5884
./strace-static-x86_64: Process 5884 attached
[pid  5884] set_robust_list(0x555588f7a660, 24) = 0
[pid  5884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5884] setpgid(0, 0)               = 0
[pid  5884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5884] write(3, "1000", 4)         = 4
[pid  5884] close(3)                    = 0
[pid  5884] write(1, "executing program\n", 18executing program
) = 18
[pid  5884] memfd_create("syzkaller", 0) = 3
[pid  5884] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5884] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5884] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5884] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5884] close(3)                    = 0
[pid  5884] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5884] fallocate(3, 0, 29521, 32769) = 0
[pid  5884] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5884] exit_group(0)               = ?
[pid  5884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5884, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 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 5885 attached
, child_tidptr=0x555588f7a650) = 5885
[pid  5885] set_robust_list(0x555588f7a660, 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(3)                    = 0
executing program
[pid  5885] write(1, "executing program\n", 18) = 18
[pid  5885] memfd_create("syzkaller", 0) = 3
[pid  5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5885] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5885] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5885] close(3)                    = 0
[pid  5885] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5885] fallocate(3, 0, 29521, 32769) = 0
[pid  5885] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5885] exit_group(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=2 /* 0.02 s */, si_stime=18 /* 0.18 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=0x555588f7a650) = 5886
./strace-static-x86_64: Process 5886 attached
[pid  5886] set_robust_list(0x555588f7a660, 24) = 0
[pid  5886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5886] setpgid(0, 0)               = 0
[pid  5886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5886] write(3, "1000", 4)         = 4
[pid  5886] close(3)                    = 0
executing program
[pid  5886] write(1, "executing program\n", 18) = 18
[pid  5886] memfd_create("syzkaller", 0) = 3
[pid  5886] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5886] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5886] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5886] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5886] close(3)                    = 0
[pid  5886] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5886] fallocate(3, 0, 29521, 32769) = 0
[pid  5886] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5886] exit_group(0)               = ?
[pid  5886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5886, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 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=0x555588f7a650) = 5887
[pid  5887] set_robust_list(0x555588f7a660, 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] memfd_create("syzkaller", 0) = 3
[pid  5887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5887] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5887] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5887] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5887] close(3)                    = 0
[pid  5887] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5887] fallocate(3, 0, 29521, 32769) = 0
[pid  5887] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5887] exit_group(0)               = ?
[pid  5887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 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=0x555588f7a650) = 5888
./strace-static-x86_64: Process 5888 attached
[pid  5888] set_robust_list(0x555588f7a660, 24) = 0
[pid  5888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5888] setpgid(0, 0)               = 0
[pid  5888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5888] write(3, "1000", 4)         = 4
[pid  5888] close(3)                    = 0
executing program
[pid  5888] write(1, "executing program\n", 18) = 18
[pid  5888] memfd_create("syzkaller", 0) = 3
[pid  5888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5888] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5888] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5888] close(3)                    = 0
[pid  5888] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5888] fallocate(3, 0, 29521, 32769) = 0
[pid  5888] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5888] exit_group(0)               = ?
[pid  5888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5888, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 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 5889 attached
, child_tidptr=0x555588f7a650) = 5889
[pid  5889] set_robust_list(0x555588f7a660, 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] memfd_create("syzkaller", 0) = 3
[pid  5889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5889] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5889] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5889] close(3)                    = 0
[pid  5889] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5889] fallocate(3, 0, 29521, 32769) = 0
[pid  5889] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5889] exit_group(0)               = ?
[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=18 /* 0.18 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=0x555588f7a650) = 5890
./strace-static-x86_64: Process 5890 attached
[pid  5890] set_robust_list(0x555588f7a660, 24) = 0
[pid  5890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5890] setpgid(0, 0)               = 0
[pid  5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5890] write(3, "1000", 4)         = 4
[pid  5890] close(3)                    = 0
executing program
[pid  5890] write(1, "executing program\n", 18) = 18
[pid  5890] memfd_create("syzkaller", 0) = 3
[pid  5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5890] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5890] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5890] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5890] close(3)                    = 0
[pid  5890] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5890] fallocate(3, 0, 29521, 32769) = 0
[pid  5890] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5890] exit_group(0)               = ?
[pid  5890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5890, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 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 5891 attached
, child_tidptr=0x555588f7a650) = 5891
[pid  5891] set_robust_list(0x555588f7a660, 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
[pid  5891] close(3)                    = 0
executing program
[pid  5891] write(1, "executing program\n", 18) = 18
[pid  5891] memfd_create("syzkaller", 0) = 3
[pid  5891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5891] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5891] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5891] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5891] close(3)                    = 0
[pid  5891] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5891] fallocate(3, 0, 29521, 32769) = 0
[pid  5891] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5891] exit_group(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=1 /* 0.01 s */, si_stime=19 /* 0.19 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=0x555588f7a650) = 5892
./strace-static-x86_64: Process 5892 attached
[pid  5892] set_robust_list(0x555588f7a660, 24) = 0
[pid  5892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5892] setpgid(0, 0)               = 0
[pid  5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5892] write(3, "1000", 4)         = 4
[pid  5892] close(3)                    = 0
executing program
[pid  5892] write(1, "executing program\n", 18) = 18
[pid  5892] memfd_create("syzkaller", 0) = 3
[pid  5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5892] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5892] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5892] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5892] close(3)                    = 0
[pid  5892] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5892] fallocate(3, 0, 29521, 32769) = 0
[pid  5892] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5892] exit_group(0)               = ?
[pid  5892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 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=0x555588f7a650) = 5893
./strace-static-x86_64: Process 5893 attached
[pid  5893] set_robust_list(0x555588f7a660, 24) = 0
[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] memfd_create("syzkaller", 0) = 3
[pid  5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5893] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5893] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5893] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5893] close(3)                    = 0
[pid  5893] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5893] fallocate(3, 0, 29521, 32769) = 0
[pid  5893] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5893] exit_group(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=19 /* 0.19 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 5894 attached
, child_tidptr=0x555588f7a650) = 5894
[pid  5894] set_robust_list(0x555588f7a660, 24) = 0
[pid  5894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5894] setpgid(0, 0)               = 0
[pid  5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5894] write(3, "1000", 4)         = 4
[pid  5894] close(3)                    = 0
[pid  5894] write(1, "executing program\n", 18executing program
) = 18
[pid  5894] memfd_create("syzkaller", 0) = 3
[pid  5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5894] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5894] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5894] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5894] close(3)                    = 0
[pid  5894] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5894] fallocate(3, 0, 29521, 32769) = 0
[pid  5894] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5894] exit_group(0)               = ?
[pid  5894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 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 5895 attached
, child_tidptr=0x555588f7a650) = 5895
[pid  5895] set_robust_list(0x555588f7a660, 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] memfd_create("syzkaller", 0) = 3
[pid  5895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5895] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5895] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5895] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5895] close(3)                    = 0
[pid  5895] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5895] fallocate(3, 0, 29521, 32769) = 0
[pid  5895] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5895] exit_group(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=20 /* 0.20 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=0x555588f7a650) = 5896
./strace-static-x86_64: Process 5896 attached
[pid  5896] set_robust_list(0x555588f7a660, 24) = 0
[pid  5896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5896] setpgid(0, 0)               = 0
[pid  5896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5896] write(3, "1000", 4)         = 4
[pid  5896] close(3)                    = 0
executing program
[pid  5896] write(1, "executing program\n", 18) = 18
[pid  5896] memfd_create("syzkaller", 0) = 3
[pid  5896] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5896] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5896] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5896] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5896] close(3)                    = 0
[pid  5896] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5896] fallocate(3, 0, 29521, 32769) = 0
[pid  5896] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5896] exit_group(0)               = ?
[pid  5896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5896, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 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 5897 attached
, child_tidptr=0x555588f7a650) = 5897
[pid  5897] set_robust_list(0x555588f7a660, 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] memfd_create("syzkaller", 0) = 3
[pid  5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5897] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5897] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5897] close(3)                    = 0
[pid  5897] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5897] fallocate(3, 0, 29521, 32769) = 0
[pid  5897] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5897] exit_group(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=1 /* 0.01 s */, si_stime=15 /* 0.15 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=0x555588f7a650) = 5898
./strace-static-x86_64: Process 5898 attached
[pid  5898] set_robust_list(0x555588f7a660, 24) = 0
[pid  5898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5898] setpgid(0, 0)               = 0
[pid  5898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5898] write(3, "1000", 4)         = 4
[pid  5898] close(3)                    = 0
executing program
[pid  5898] write(1, "executing program\n", 18) = 18
[pid  5898] memfd_create("syzkaller", 0) = 3
[pid  5898] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5898] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5898] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5898] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5898] close(3)                    = 0
[pid  5898] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5898] fallocate(3, 0, 29521, 32769) = 0
[pid  5898] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5898] exit_group(0)               = ?
[pid  5898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5898, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 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 5899 attached
, child_tidptr=0x555588f7a650) = 5899
[pid  5899] set_robust_list(0x555588f7a660, 24) = 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
[pid  5899] close(3)                    = 0
[pid  5899] write(1, "executing program\n", 18executing program
) = 18
[pid  5899] memfd_create("syzkaller", 0) = 3
[pid  5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5899] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5899] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5899] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5899] close(3)                    = 0
[pid  5899] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5899] fallocate(3, 0, 29521, 32769) = 0
[pid  5899] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5899] exit_group(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=2 /* 0.02 s */, si_stime=16 /* 0.16 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 5900 attached
, child_tidptr=0x555588f7a650) = 5900
[pid  5900] set_robust_list(0x555588f7a660, 24) = 0
[pid  5900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5900] setpgid(0, 0)               = 0
[pid  5900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5900] write(3, "1000", 4)         = 4
[pid  5900] close(3)                    = 0
[pid  5900] write(1, "executing program\n", 18executing program
) = 18
[pid  5900] memfd_create("syzkaller", 0) = 3
[pid  5900] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5900] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5900] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5900] close(3)                    = 0
[pid  5900] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5900] fallocate(3, 0, 29521, 32769) = 0
[pid  5900] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5900] exit_group(0)               = ?
[pid  5900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5900, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 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 5901 attached
, child_tidptr=0x555588f7a650) = 5901
[pid  5901] set_robust_list(0x555588f7a660, 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(3)                    = 0
executing program
[pid  5901] write(1, "executing program\n", 18) = 18
[pid  5901] memfd_create("syzkaller", 0) = 3
[pid  5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5901] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5901] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5901] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5901] close(3)                    = 0
[pid  5901] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5901] fallocate(3, 0, 29521, 32769) = 0
[pid  5901] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5901] exit_group(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=19 /* 0.19 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 5902 attached
, child_tidptr=0x555588f7a650) = 5902
[pid  5902] set_robust_list(0x555588f7a660, 24) = 0
[pid  5902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5902] setpgid(0, 0)               = 0
[pid  5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5902] write(3, "1000", 4)         = 4
[pid  5902] close(3)                    = 0
executing program
[pid  5902] write(1, "executing program\n", 18) = 18
[pid  5902] memfd_create("syzkaller", 0) = 3
[pid  5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5902] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5902] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5902] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5902] close(3)                    = 0
[pid  5902] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5902] fallocate(3, 0, 29521, 32769) = 0
[pid  5902] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5902] exit_group(0)               = ?
[pid  5902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5902, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 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=0x555588f7a650) = 5903
./strace-static-x86_64: Process 5903 attached
[pid  5903] set_robust_list(0x555588f7a660, 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] memfd_create("syzkaller", 0) = 3
[pid  5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5903] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5903] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5903] close(3)                    = 0
[pid  5903] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5903] fallocate(3, 0, 29521, 32769) = 0
[pid  5903] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5903] exit_group(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=23 /* 0.23 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=0x555588f7a650) = 5904
./strace-static-x86_64: Process 5904 attached
[pid  5904] set_robust_list(0x555588f7a660, 24) = 0
[pid  5904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5904] setpgid(0, 0)               = 0
[pid  5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5904] write(3, "1000", 4)         = 4
[pid  5904] close(3)                    = 0
executing program
[pid  5904] write(1, "executing program\n", 18) = 18
[pid  5904] memfd_create("syzkaller", 0) = 3
[pid  5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5904] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5904] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5904] close(3)                    = 0
[pid  5904] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5904] fallocate(3, 0, 29521, 32769) = 0
[pid  5904] ioctl(3, _IOC(_IOC_WRITE, 0x6f, 0x6, 0x40), 0x2000000000c0) = -1 ENOTTY (Inappropriate ioctl for device)
[pid  5904] exit_group(0)               = ?
[pid  5904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 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=0x555588f7a650) = 5905
./strace-static-x86_64: Process 5905 attached
[pid  5905] set_robust_list(0x555588f7a660, 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(3)                    = 0
executing program
[pid  5905] write(1, "executing program\n", 18) = 18
[pid  5905] memfd_create("syzkaller", 0) = 3
[pid  5905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f72b6e00000
[pid  5905] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid  5905] munmap(0x7f72b6e00000, 138412032) = 0
[pid  5905] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)