./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2579346791
<...>
Warning: Permanently added '10.128.1.143' (ED25519) to the list of known hosts.
execve("./syz-executor2579346791", ["./syz-executor2579346791"], 0x7ffca08c6f30 /* 10 vars */) = 0
brk(NULL) = 0x555566b7c000
brk(0x555566b7cd00) = 0x555566b7cd00
arch_prctl(ARCH_SET_FS, 0x555566b7c380) = 0
set_tid_address(0x555566b7c650) = 5817
set_robust_list(0x555566b7c660, 24) = 0
rseq(0x555566b7cca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2579346791", 4096) = 28
getrandom("\xe2\x1b\x4b\x3a\xda\x88\xca\x47", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555566b7cd00
brk(0x555566b9dd00) = 0x555566b9dd00
brk(0x555566b9e000) = 0x555566b9e000
mprotect(0x7f096fbf8000, 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
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, child_tidptr=0x555566b7c650) = 5818
./strace-static-x86_64: Process 5818 attached
[pid 5818] set_robust_list(0x555566b7c660, 24) = 0
[pid 5818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5818] setpgid(0, 0) = 0
[pid 5818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5818] write(3, "1000", 4) = 4
[pid 5818] close(3) = 0
[pid 5818] write(1, "executing program\n", 18executing program
) = 18
[pid 5818] memfd_create("syzkaller", 0) = 3
[pid 5818] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5818] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5818] munmap(0x7f0967600000, 138412032) = 0
[pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5818] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5818] close(3) = 0
[pid 5818] close(4) = 0
[pid 5818] mkdir("./file1", 0777) = 0
[ 63.229117][ T5818] loop0: detected capacity change from 0 to 32768
[ 63.256609][ T5818] =======================================================
[ 63.256609][ T5818] WARNING: The mand mount option has been deprecated and
[ 63.256609][ T5818] and is ignored by this kernel. Remove the mand
[ 63.256609][ T5818] option from the mount to silence this warning.
[ 63.256609][ T5818] =======================================================
[ 63.291732][ T5818] XFS: ikeep mount option is deprecated.
[ 63.297509][ T5818] XFS: noikeep mount option is deprecated.
[ 63.310846][ T5818] XFS (loop0): Mounting V5 Filesystem a2f82aab-77f8-4286-afd4-a8f747a74bab
[pid 5818] mount("/dev/loop0", "./file1", "xfs", MS_MANDLOCK, "pqnoenforce,noquota,usrquota,pqnoenforce,ikeep,prjquota,noikeep,,nouuid") = 0
[pid 5818] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5818] chdir("./file1") = 0
[pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5818] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 4
[pid 5818] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 5
[ 63.337998][ T5818] XFS (loop0): Ending clean mount
[ 63.346683][ T5818] XFS (loop0): Quotacheck needed: Please wait.
[ 63.370074][ T5818] XFS (loop0): Quotacheck: Done.
[ 63.436769][ T5818]
[ 63.439107][ T5818] ======================================================
[ 63.446109][ T5818] WARNING: possible circular locking dependency detected
[ 63.453118][ T5818] 6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0 Not tainted
[ 63.460201][ T5818] ------------------------------------------------------
[ 63.467192][ T5818] syz-executor257/5818 is trying to acquire lock:
[ 63.473580][ T5818] ffff888073fa4170 (&lp->qli_lock){+.+.}-{3:3}, at: xfs_dquot_detach_buf+0x2f/0x1a0
[ 63.482984][ T5818]
[ 63.482984][ T5818] but task is already holding lock:
[ 63.490329][ T5818] ffff88802a46d630 (&l->lock){+.+.}-{3:3}, at: lock_list_lru_of_memcg+0x24b/0x4e0
[ 63.499528][ T5818]
[ 63.499528][ T5818] which lock already depends on the new lock.
[ 63.499528][ T5818]
[ 63.509905][ T5818]
[ 63.509905][ T5818] the existing dependency chain (in reverse order) is:
[ 63.518893][ T5818]
[ 63.518893][ T5818] -> #3 (&l->lock){+.+.}-{3:3}:
[ 63.525908][ T5818] lock_acquire+0x1ed/0x550
[ 63.530911][ T5818] _raw_spin_lock+0x2e/0x40
[ 63.535922][ T5818] lock_list_lru_of_memcg+0x24b/0x4e0
[ 63.541803][ T5818] list_lru_add+0x59/0x270
[ 63.546720][ T5818] xfs_buf_rele+0x4ca/0x15b0
[ 63.551817][ T5818] xfs_imap_lookup+0x26a/0x750
[ 63.557084][ T5818] xfs_imap+0x54d/0x1090
[ 63.561840][ T5818] xfs_iget+0xaf6/0x2ec0
[ 63.566610][ T5818] xfs_mountfs+0x13df/0x2410
[ 63.571714][ T5818] xfs_fs_fill_super+0x12db/0x1590
[ 63.577334][ T5818] get_tree_bdev_flags+0x48c/0x5c0
[ 63.582956][ T5818] vfs_get_tree+0x90/0x2b0
[ 63.587884][ T5818] do_new_mount+0x2be/0xb40
[ 63.592897][ T5818] __se_sys_mount+0x2d6/0x3c0
[ 63.598078][ T5818] do_syscall_64+0xf3/0x230
[ 63.603090][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 63.609496][ T5818]
[ 63.609496][ T5818] -> #2 (&bch->bc_lock){+.+.}-{3:3}:
[ 63.616955][ T5818] lock_acquire+0x1ed/0x550
[ 63.621961][ T5818] _raw_spin_lock+0x2e/0x40
[ 63.626970][ T5818] _atomic_dec_and_lock+0xb8/0x130
[ 63.632598][ T5818] xfs_buf_rele+0x178/0x15b0
[ 63.637694][ T5818] xfs_imap_lookup+0x26a/0x750
[ 63.642963][ T5818] xfs_imap+0x54d/0x1090
[ 63.647709][ T5818] xfs_iget+0xaf6/0x2ec0
[ 63.652456][ T5818] xfs_mountfs+0x13df/0x2410
[ 63.657554][ T5818] xfs_fs_fill_super+0x12db/0x1590
[ 63.663170][ T5818] get_tree_bdev_flags+0x48c/0x5c0
[ 63.668785][ T5818] vfs_get_tree+0x90/0x2b0
[ 63.673709][ T5818] do_new_mount+0x2be/0xb40
[ 63.678719][ T5818] __se_sys_mount+0x2d6/0x3c0
[ 63.683898][ T5818] do_syscall_64+0xf3/0x230
[ 63.688908][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 63.695310][ T5818]
[ 63.695310][ T5818] -> #1 (&bp->b_lock){+.+.}-{3:3}:
[ 63.702594][ T5818] lock_acquire+0x1ed/0x550
[ 63.707601][ T5818] _raw_spin_lock+0x2e/0x40
[ 63.712611][ T5818] xfs_buf_rele+0x164/0x15b0
[ 63.717703][ T5818] xfs_dquot_attach_buf+0x33e/0x560
[ 63.723405][ T5818] xfs_qm_quotacheck_dqadjust+0x13f/0x5e0
[ 63.729637][ T5818] xfs_qm_dqusage_adjust+0x5e1/0x850
[ 63.735431][ T5818] xfs_iwalk_ag_recs+0x4e3/0x820
[ 63.740875][ T5818] xfs_iwalk_run_callbacks+0x218/0x470
[ 63.746843][ T5818] xfs_iwalk_ag+0xa9a/0xbb0
[ 63.751851][ T5818] xfs_iwalk_ag_work+0xfb/0x1b0
[ 63.757211][ T5818] xfs_pwork_work+0x7f/0x190
[ 63.762307][ T5818] process_scheduled_works+0xa66/0x1840
[ 63.768361][ T5818] worker_thread+0x870/0xd30
[ 63.773457][ T5818] kthread+0x2f0/0x390
[ 63.778029][ T5818] ret_from_fork+0x4b/0x80
[ 63.782950][ T5818] ret_from_fork_asm+0x1a/0x30
[ 63.788225][ T5818]
[ 63.788225][ T5818] -> #0 (&lp->qli_lock){+.+.}-{3:3}:
[ 63.795684][ T5818] validate_chain+0x18ef/0x5920
[ 63.801044][ T5818] __lock_acquire+0x1397/0x2100
[ 63.806398][ T5818] lock_acquire+0x1ed/0x550
[ 63.811404][ T5818] _raw_spin_lock+0x2e/0x40
[ 63.816414][ T5818] xfs_dquot_detach_buf+0x2f/0x1a0
[ 63.822031][ T5818] xfs_qm_dquot_isolate+0x49d/0x1420
[ 63.827824][ T5818] __list_lru_walk_one+0x170/0x470
[ 63.833440][ T5818] list_lru_walk_one+0x3c/0x50
[ 63.838706][ T5818] xfs_qm_shrink_scan+0x1e1/0x400
[ 63.844239][ T5818] do_shrink_slab+0x72d/0x1160
[ 63.849509][ T5818] shrink_slab+0x1093/0x14d0
[ 63.854605][ T5818] drop_slab+0x142/0x280
[ 63.859354][ T5818] drop_caches_sysctl_handler+0xbc/0x160
[ 63.865495][ T5818] proc_sys_call_handler+0x5ec/0x920
[ 63.871288][ T5818] iter_file_splice_write+0xbfa/0x1510
[ 63.877257][ T5818] direct_splice_actor+0x11b/0x220
[ 63.882879][ T5818] splice_direct_to_actor+0x586/0xc80
[ 63.888757][ T5818] do_splice_direct+0x289/0x3e0
[ 63.894113][ T5818] do_sendfile+0x564/0x8a0
[ 63.899032][ T5818] __se_sys_sendfile64+0x100/0x1e0
[ 63.904651][ T5818] do_syscall_64+0xf3/0x230
[ 63.909665][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 63.916070][ T5818]
[ 63.916070][ T5818] other info that might help us debug this:
[ 63.916070][ T5818]
[ 63.926284][ T5818] Chain exists of:
[ 63.926284][ T5818] &lp->qli_lock --> &bch->bc_lock --> &l->lock
[ 63.926284][ T5818]
[ 63.938349][ T5818] Possible unsafe locking scenario:
[ 63.938349][ T5818]
[ 63.945782][ T5818] CPU0 CPU1
[ 63.951128][ T5818] ---- ----
[ 63.956472][ T5818] lock(&l->lock);
[ 63.960270][ T5818] lock(&bch->bc_lock);
[ 63.967016][ T5818] lock(&l->lock);
[ 63.973385][ T5818] lock(&lp->qli_lock);
[ 63.977624][ T5818]
[ 63.977624][ T5818] *** DEADLOCK ***
[ 63.977624][ T5818]
[ 63.985747][ T5818] 3 locks held by syz-executor257/5818:
[ 63.991294][ T5818] #0: ffff888035996420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220
[ 64.000955][ T5818] #1: ffff88802a46d630 (&l->lock){+.+.}-{3:3}, at: lock_list_lru_of_memcg+0x24b/0x4e0
[ 64.010600][ T5818] #2: ffff888073fa4258 (&dqp->q_qlock){+.+.}-{4:4}, at: xfs_qm_dquot_isolate+0x8d/0x1420
[ 64.020508][ T5818]
[ 64.020508][ T5818] stack backtrace:
[ 64.026391][ T5818] CPU: 0 UID: 0 PID: 5818 Comm: syz-executor257 Not tainted 6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0
[ 64.037479][ T5818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 64.047526][ T5818] Call Trace:
[ 64.050793][ T5818]
[ 64.053713][ T5818] dump_stack_lvl+0x241/0x360
[ 64.058379][ T5818] ? __pfx_dump_stack_lvl+0x10/0x10
[ 64.063562][ T5818] ? __pfx__printk+0x10/0x10
[ 64.068141][ T5818] print_circular_bug+0x13a/0x1b0
[ 64.073157][ T5818] check_noncircular+0x36a/0x4a0
[ 64.078084][ T5818] ? __pfx_check_noncircular+0x10/0x10
[ 64.083531][ T5818] ? queued_spin_lock_slowpath+0x42/0x50
[ 64.089150][ T5818] ? lockdep_lock+0x1b0/0x2b0
[ 64.093815][ T5818] ? validate_chain+0x15c0/0x5920
[ 64.098833][ T5818] validate_chain+0x18ef/0x5920
[ 64.103679][ T5818] ? __pfx_validate_chain+0x10/0x10
[ 64.108871][ T5818] ? arch_stack_walk+0xfd/0x150
[ 64.113712][ T5818] ? __lock_acquire+0x1397/0x2100
[ 64.118723][ T5818] ? mark_lock+0x9a/0x360
[ 64.123054][ T5818] __lock_acquire+0x1397/0x2100
[ 64.127895][ T5818] lock_acquire+0x1ed/0x550
[ 64.132387][ T5818] ? xfs_dquot_detach_buf+0x2f/0x1a0
[ 64.137658][ T5818] ? __pfx_lock_acquire+0x10/0x10
[ 64.142667][ T5818] ? _raw_spin_unlock_irqrestore+0x8f/0x140
[ 64.148546][ T5818] ? lockdep_hardirqs_on+0x99/0x150
[ 64.153731][ T5818] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 64.159608][ T5818] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 64.165920][ T5818] ? __pfx___mutex_trylock_common+0x10/0x10
[ 64.171803][ T5818] _raw_spin_lock+0x2e/0x40
[ 64.176292][ T5818] ? xfs_dquot_detach_buf+0x2f/0x1a0
[ 64.181563][ T5818] xfs_dquot_detach_buf+0x2f/0x1a0
[ 64.186664][ T5818] xfs_qm_dquot_isolate+0x49d/0x1420
[ 64.191939][ T5818] ? __lock_acquire+0x1397/0x2100
[ 64.196947][ T5818] ? __pfx_xfs_qm_dquot_isolate+0x10/0x10
[ 64.202655][ T5818] ? lock_list_lru_of_memcg+0x2e/0x4e0
[ 64.208099][ T5818] ? lock_list_lru_of_memcg+0x4a9/0x4e0
[ 64.213630][ T5818] __list_lru_walk_one+0x170/0x470
[ 64.218728][ T5818] ? __pfx_xfs_qm_dquot_isolate+0x10/0x10
[ 64.224434][ T5818] ? __pfx_xfs_qm_dquot_isolate+0x10/0x10
[ 64.230141][ T5818] list_lru_walk_one+0x3c/0x50
[ 64.234892][ T5818] xfs_qm_shrink_scan+0x1e1/0x400
[ 64.239905][ T5818] ? __pfx_xfs_qm_shrink_scan+0x10/0x10
[ 64.245438][ T5818] ? list_lru_count_one+0x29/0x2e0
[ 64.250535][ T5818] do_shrink_slab+0x72d/0x1160
[ 64.255289][ T5818] ? shrink_slab+0x12b/0x14d0
[ 64.259950][ T5818] shrink_slab+0x1093/0x14d0
[ 64.264531][ T5818] ? shrink_slab+0x12b/0x14d0
[ 64.269192][ T5818] ? __pfx_lock_release+0x10/0x10
[ 64.274206][ T5818] ? __pfx_shrink_slab+0x10/0x10
[ 64.279134][ T5818] ? mem_cgroup_iter+0x3d/0x420
[ 64.283971][ T5818] drop_slab+0x142/0x280
[ 64.288202][ T5818] drop_caches_sysctl_handler+0xbc/0x160
[ 64.293826][ T5818] ? __pfx_drop_caches_sysctl_handler+0x10/0x10
[ 64.300052][ T5818] proc_sys_call_handler+0x5ec/0x920
[ 64.305324][ T5818] ? __pfx_proc_sys_call_handler+0x10/0x10
[ 64.311120][ T5818] iter_file_splice_write+0xbfa/0x1510
[ 64.316575][ T5818] ? __pfx_iter_file_splice_write+0x10/0x10
[ 64.322459][ T5818] ? rcu_read_lock_any_held+0xb7/0x160
[ 64.327935][ T5818] ? __pfx_iter_file_splice_write+0x10/0x10
[ 64.333829][ T5818] direct_splice_actor+0x11b/0x220
[ 64.338931][ T5818] splice_direct_to_actor+0x586/0xc80
[ 64.344298][ T5818] ? __pfx_direct_splice_actor+0x10/0x10
[ 64.349919][ T5818] ? __pfx_splice_direct_to_actor+0x10/0x10
[ 64.355798][ T5818] ? __lock_acquire+0x1397/0x2100
[ 64.360822][ T5818] do_splice_direct+0x289/0x3e0
[ 64.365661][ T5818] ? __pfx_do_splice_direct+0x10/0x10
[ 64.371021][ T5818] ? __pfx_direct_file_splice_eof+0x10/0x10
[ 64.376907][ T5818] ? rw_verify_area+0x1c3/0x6f0
[ 64.381746][ T5818] do_sendfile+0x564/0x8a0
[ 64.386148][ T5818] ? __pfx_do_sendfile+0x10/0x10
[ 64.391078][ T5818] ? __might_fault+0xc6/0x120
[ 64.395746][ T5818] __se_sys_sendfile64+0x100/0x1e0
[ 64.400847][ T5818] ? __pfx___se_sys_sendfile64+0x10/0x10
[ 64.406472][ T5818] ? exc_page_fault+0x590/0x8b0
[ 64.411311][ T5818] do_syscall_64+0xf3/0x230
[ 64.415808][ T5818] ? clear_bhb_loop+0x35/0x90
[ 64.420472][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 64.426365][ T5818] RIP: 0033:0x7f096fb7bbd9
[ 64.430767][ T5818] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48
[ 64.450357][ T5818] RSP: 002b:00007ffee5da8c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
[ 64.458757][ T5818] RAX: ffffffffffffffda RBX: 61746f7571727375 RCX: 00007f096fb7bbd9
[ 64.466712][ T5818] RDX: 0000000020002080 RSI: 0000000000000004 RDI: 0000000000000005
[ 64.474668][ T5818] RBP: 00007f096fbf85f0 R08: 0000555566b7d4c0 R09: 0000555566b7d4c0
[ 64.482623][ T5818] R10: 000000000000023b R11: 0000000000000246 R12: 00007ffee5da8c50
[ 64.490579][ T5818] R13: 00007ffee5da8e78 R14: 431bde82d7b634db R15: 00007f096fbc403b
[ 64.498540][ T5818]
[pid 5818] sendfile(5, 4, [100] => [671], 571) = 571
[pid 5818] exit_group(0) = ?
[pid 5818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5818, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=56 /* 0.56 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 64.793143][ T5818] syz-executor257 (5818): drop_caches: 2
[ 64.799904][ T5818] syz-executor257 (5818): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566b7c650) = 5828
./strace-static-x86_64: Process 5828 attached
[pid 5828] set_robust_list(0x555566b7c660, 24) = 0
[pid 5828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5828] setpgid(0, 0) = 0
[pid 5828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5828] write(3, "1000", 4) = 4
[pid 5828] close(3) = 0
executing program
[pid 5828] write(1, "executing program\n", 18) = 18
[pid 5828] memfd_create("syzkaller", 0) = 3
[pid 5828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5828] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5828] munmap(0x7f0967600000, 138412032) = 0
[pid 5828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5828] close(3) = 0
[pid 5828] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5828] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5828] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5828] exit_group(0) = ?
[pid 5828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5828, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 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 5829 attached
[pid 5829] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5829
[pid 5829] <... set_robust_list resumed>) = 0
[pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5829] setpgid(0, 0) = 0
[ 65.065974][ T5828] syz-executor257 (5828): drop_caches: 2
[ 65.071750][ T5828] syz-executor257 (5828): drop_caches: 2
[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
[pid 5829] write(1, "executing program\n", 18executing program
) = 18
[pid 5829] memfd_create("syzkaller", 0) = 3
[pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5829] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5829] munmap(0x7f0967600000, 138412032) = 0
[pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5829] close(3) = 0
[pid 5829] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5829] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5829] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5829] exit_group(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=1 /* 0.01 s */, si_stime=11 /* 0.11 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 5830 attached
[pid 5830] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5830
[pid 5830] <... set_robust_list resumed>) = 0
[pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5830] setpgid(0, 0) = 0
[pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5830] write(3, "1000", 4) = 4
[pid 5830] close(3) = 0
[pid 5830] write(1, "executing program\n", 18) = 18
executing program
[ 65.340654][ T5829] syz-executor257 (5829): drop_caches: 2
[ 65.346703][ T5829] syz-executor257 (5829): drop_caches: 2
[pid 5830] memfd_create("syzkaller", 0) = 3
[pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5830] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5830] munmap(0x7f0967600000, 138412032) = 0
[pid 5830] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5830] close(3) = 0
[pid 5830] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5830] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5830] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5830] exit_group(0) = ?
[pid 5830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 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 5831 attached
[pid 5831] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5831
[pid 5831] <... set_robust_list resumed>) = 0
[pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5831] setpgid(0, 0) = 0
[ 65.540088][ T5830] syz-executor257 (5830): drop_caches: 2
[ 65.545894][ T5830] syz-executor257 (5830): drop_caches: 2
[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
executing program
[pid 5831] write(1, "executing program\n", 18) = 18
[pid 5831] memfd_create("syzkaller", 0) = 3
[pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5831] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5831] munmap(0x7f0967600000, 138412032) = 0
[pid 5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5831] close(3) = 0
[pid 5831] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5831] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5831] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5831] exit_group(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=2 /* 0.02 s */, si_stime=9 /* 0.09 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 5832 attached
, child_tidptr=0x555566b7c650) = 5832
[ 65.755022][ T5831] syz-executor257 (5831): drop_caches: 2
[ 65.760747][ T5831] syz-executor257 (5831): drop_caches: 2
[pid 5832] set_robust_list(0x555566b7c660, 24) = 0
[pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5832] setpgid(0, 0) = 0
[pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5832] write(3, "1000", 4) = 4
[pid 5832] close(3) = 0
executing program
[pid 5832] write(1, "executing program\n", 18) = 18
[pid 5832] memfd_create("syzkaller", 0) = 3
[pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5832] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5832] munmap(0x7f0967600000, 138412032) = 0
[pid 5832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5832] close(3) = 0
[pid 5832] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5832] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5832] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5832] exit_group(0) = ?
[pid 5832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 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
[pid 5833] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5833
[pid 5833] <... set_robust_list resumed>) = 0
[pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5833] setpgid(0, 0) = 0
[ 65.964392][ T5832] syz-executor257 (5832): drop_caches: 2
[ 65.970099][ T5832] syz-executor257 (5832): drop_caches: 2
[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] memfd_create("syzkaller", 0) = 3
[pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5833] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5833] munmap(0x7f0967600000, 138412032) = 0
[pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5833] close(3) = 0
[pid 5833] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5833] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5833] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5833] exit_group(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=1 /* 0.01 s */, si_stime=10 /* 0.10 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 5834 attached
[pid 5834] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5834
[pid 5834] <... set_robust_list resumed>) = 0
[pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 66.216644][ T5833] syz-executor257 (5833): drop_caches: 2
[ 66.222656][ T5833] syz-executor257 (5833): drop_caches: 2
[pid 5834] setpgid(0, 0) = 0
[pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5834] write(3, "1000", 4) = 4
[pid 5834] close(3) = 0
executing program
[pid 5834] write(1, "executing program\n", 18) = 18
[pid 5834] memfd_create("syzkaller", 0) = 3
[pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5834] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5834] munmap(0x7f0967600000, 138412032) = 0
[pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5834] close(3) = 0
[pid 5834] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5834] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5834] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5834] exit_group(0) = ?
[pid 5834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 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 5835 attached
[pid 5835] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5835
[pid 5835] <... set_robust_list resumed>) = 0
[pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 66.450815][ T5834] syz-executor257 (5834): drop_caches: 2
[ 66.456882][ T5834] syz-executor257 (5834): drop_caches: 2
[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
executing program
[pid 5835] write(1, "executing program\n", 18) = 18
[pid 5835] memfd_create("syzkaller", 0) = 3
[pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5835] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5835] munmap(0x7f0967600000, 138412032) = 0
[pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5835] close(3) = 0
[pid 5835] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5835] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5835] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5835] exit_group(0) = ?
[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=12 /* 0.12 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 5836 attached
[pid 5836] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5836
[pid 5836] <... set_robust_list resumed>) = 0
[pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 66.701840][ T5835] syz-executor257 (5835): drop_caches: 2
[ 66.707618][ T5835] syz-executor257 (5835): drop_caches: 2
[pid 5836] setpgid(0, 0) = 0
[pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5836] write(3, "1000", 4) = 4
[pid 5836] close(3) = 0
[pid 5836] write(1, "executing program\n", 18executing program
) = 18
[pid 5836] memfd_create("syzkaller", 0) = 3
[pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5836] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5836] munmap(0x7f0967600000, 138412032) = 0
[pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5836] close(3) = 0
[pid 5836] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5836] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5836] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5836] exit_group(0) = ?
[pid 5836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=8 /* 0.08 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 5837 attached
[pid 5837] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5837
[pid 5837] <... set_robust_list resumed>) = 0
[pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5837] setpgid(0, 0) = 0
[ 66.987483][ T5836] syz-executor257 (5836): drop_caches: 2
[ 66.993783][ T5836] syz-executor257 (5836): drop_caches: 2
[pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5837] write(3, "1000", 4) = 4
[pid 5837] close(3) = 0
executing program
[pid 5837] write(1, "executing program\n", 18) = 18
[pid 5837] memfd_create("syzkaller", 0) = 3
[pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5837] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5837] munmap(0x7f0967600000, 138412032) = 0
[pid 5837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5837] close(3) = 0
[pid 5837] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5837] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5837] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5837] exit_group(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=2 /* 0.02 s */, si_stime=8 /* 0.08 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 5838 attached
[ 67.244227][ T5837] syz-executor257 (5837): drop_caches: 2
[ 67.250029][ T5837] syz-executor257 (5837): drop_caches: 2
, child_tidptr=0x555566b7c650) = 5838
[pid 5838] set_robust_list(0x555566b7c660, 24) = 0
[pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5838] setpgid(0, 0) = 0
[pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5838] write(3, "1000", 4) = 4
[pid 5838] close(3) = 0
executing program
[pid 5838] write(1, "executing program\n", 18) = 18
[pid 5838] memfd_create("syzkaller", 0) = 3
[pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5838] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5838] munmap(0x7f0967600000, 138412032) = 0
[pid 5838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5838] close(3) = 0
[pid 5838] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5838] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5838] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5838] exit_group(0) = ?
[pid 5838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5838, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=8 /* 0.08 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 67.491186][ T5838] syz-executor257 (5838): drop_caches: 2
[ 67.499955][ T5838] syz-executor257 (5838): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566b7c650) = 5839
./strace-static-x86_64: Process 5839 attached
[pid 5839] set_robust_list(0x555566b7c660, 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(3) = 0
[pid 5839] write(1, "executing program\n", 18executing program
) = 18
[pid 5839] memfd_create("syzkaller", 0) = 3
[pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5839] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5839] munmap(0x7f0967600000, 138412032) = 0
[pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5839] close(3) = 0
[pid 5839] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5839] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5839] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5839] exit_group(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=2 /* 0.02 s */, si_stime=8 /* 0.08 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 5840 attached
[ 67.759164][ T5839] syz-executor257 (5839): drop_caches: 2
[ 67.764943][ T5839] syz-executor257 (5839): drop_caches: 2
, child_tidptr=0x555566b7c650) = 5840
[pid 5840] set_robust_list(0x555566b7c660, 24) = 0
[pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5840] setpgid(0, 0) = 0
[pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5840] write(3, "1000", 4) = 4
[pid 5840] close(3) = 0
executing program
[pid 5840] write(1, "executing program\n", 18) = 18
[pid 5840] memfd_create("syzkaller", 0) = 3
[pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5840] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5840] munmap(0x7f0967600000, 138412032) = 0
[pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5840] close(3) = 0
[pid 5840] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5840] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5840] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5840] exit_group(0) = ?
[pid 5840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 68.024834][ T5840] syz-executor257 (5840): drop_caches: 2
[ 68.030538][ T5840] syz-executor257 (5840): drop_caches: 2
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 5841 attached
, child_tidptr=0x555566b7c650) = 5841
[pid 5841] set_robust_list(0x555566b7c660, 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] memfd_create("syzkaller", 0) = 3
[pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5841] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5841] munmap(0x7f0967600000, 138412032) = 0
[pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5841] close(3) = 0
[pid 5841] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5841] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5841] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5841] exit_group(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=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 68.354316][ T5841] syz-executor257 (5841): drop_caches: 2
[ 68.360047][ T5841] syz-executor257 (5841): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5842 attached
, child_tidptr=0x555566b7c650) = 5842
[pid 5842] set_robust_list(0x555566b7c660, 24) = 0
[pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5842] setpgid(0, 0) = 0
[pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5842] write(3, "1000", 4) = 4
[pid 5842] close(3) = 0
[pid 5842] write(1, "executing program\n", 18executing program
) = 18
[pid 5842] memfd_create("syzkaller", 0) = 3
[pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5842] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5842] munmap(0x7f0967600000, 138412032) = 0
[pid 5842] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5842] close(3) = 0
[pid 5842] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5842] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5842] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5842] exit_group(0) = ?
[pid 5842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 68.712593][ T5842] syz-executor257 (5842): drop_caches: 2
[ 68.718310][ T5842] syz-executor257 (5842): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached
, child_tidptr=0x555566b7c650) = 5843
[pid 5843] set_robust_list(0x555566b7c660, 24) = 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
[pid 5843] write(1, "executing program\n", 18executing program
) = 18
[pid 5843] memfd_create("syzkaller", 0) = 3
[pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5843] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5843] munmap(0x7f0967600000, 138412032) = 0
[pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5843] close(3) = 0
[pid 5843] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5843] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5843] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5843] exit_group(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=11 /* 0.11 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 5844 attached
, child_tidptr=0x555566b7c650) = 5844
[ 69.044055][ T5843] syz-executor257 (5843): drop_caches: 2
[ 69.049762][ T5843] syz-executor257 (5843): drop_caches: 2
[pid 5844] set_robust_list(0x555566b7c660, 24) = 0
[pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5844] setpgid(0, 0) = 0
[pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5844] write(3, "1000", 4) = 4
[pid 5844] close(3) = 0
executing program
[pid 5844] write(1, "executing program\n", 18) = 18
[pid 5844] memfd_create("syzkaller", 0) = 3
[pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5844] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5844] munmap(0x7f0967600000, 138412032) = 0
[pid 5844] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5844] close(3) = 0
[pid 5844] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5844] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5844] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5844] exit_group(0) = ?
[pid 5844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 69.280745][ T5844] syz-executor257 (5844): drop_caches: 2
[ 69.286622][ T5844] syz-executor257 (5844): drop_caches: 2
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 5845 attached
, child_tidptr=0x555566b7c650) = 5845
[pid 5845] set_robust_list(0x555566b7c660, 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
[pid 5845] write(1, "executing program\n", 18executing program
) = 18
[pid 5845] memfd_create("syzkaller", 0) = 3
[pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5845] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5845] munmap(0x7f0967600000, 138412032) = 0
[pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5845] close(3) = 0
[pid 5845] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5845] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5845] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5845] exit_group(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=2 /* 0.02 s */, si_stime=9 /* 0.09 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 5846 attached
, child_tidptr=0x555566b7c650) = 5846
[pid 5846] set_robust_list(0x555566b7c660, 24) = 0
[pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5846] setpgid(0, 0) = 0
[pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5846] write(3, "1000", 4) = 4
[ 69.616394][ T5845] syz-executor257 (5845): drop_caches: 2
[ 69.622226][ T5845] syz-executor257 (5845): drop_caches: 2
[pid 5846] close(3) = 0
[pid 5846] write(1, "executing program\n", 18executing program
) = 18
[pid 5846] memfd_create("syzkaller", 0) = 3
[pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5846] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5846] munmap(0x7f0967600000, 138412032) = 0
[pid 5846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5846] close(3) = 0
[pid 5846] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5846] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5846] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5846] exit_group(0) = ?
[pid 5846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 69.837560][ T5846] syz-executor257 (5846): drop_caches: 2
[ 69.843325][ T5846] syz-executor257 (5846): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached
, child_tidptr=0x555566b7c650) = 5847
[pid 5847] set_robust_list(0x555566b7c660, 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] memfd_create("syzkaller", 0) = 3
[pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5847] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5847] munmap(0x7f0967600000, 138412032) = 0
[pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5847] close(3) = 0
[pid 5847] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5847] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5847] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5847] exit_group(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=2 /* 0.02 s */, si_stime=8 /* 0.08 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 5848 attached
[ 70.066485][ T5847] syz-executor257 (5847): drop_caches: 2
[ 70.072287][ T5847] syz-executor257 (5847): drop_caches: 2
, child_tidptr=0x555566b7c650) = 5848
[pid 5848] set_robust_list(0x555566b7c660, 24) = 0
[pid 5848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5848] setpgid(0, 0) = 0
[pid 5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5848] write(3, "1000", 4) = 4
[pid 5848] close(3) = 0
[pid 5848] write(1, "executing program\n", 18executing program
) = 18
[pid 5848] memfd_create("syzkaller", 0) = 3
[pid 5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5848] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5848] munmap(0x7f0967600000, 138412032) = 0
[pid 5848] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5848] close(3) = 0
[pid 5848] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5848] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5848] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5848] exit_group(0) = ?
[pid 5848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5848, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 70.314042][ T5848] syz-executor257 (5848): drop_caches: 2
[ 70.319748][ T5848] syz-executor257 (5848): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566b7c650) = 5849
./strace-static-x86_64: Process 5849 attached
[pid 5849] set_robust_list(0x555566b7c660, 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
executing program
[pid 5849] write(1, "executing program\n", 18) = 18
[pid 5849] memfd_create("syzkaller", 0) = 3
[pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5849] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5849] munmap(0x7f0967600000, 138412032) = 0
[pid 5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5849] close(3) = 0
[pid 5849] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5849] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5849] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5849] exit_group(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=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 70.561557][ T5849] syz-executor257 (5849): drop_caches: 2
[ 70.567311][ T5849] syz-executor257 (5849): drop_caches: 2
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 5850 attached
, child_tidptr=0x555566b7c650) = 5850
[pid 5850] set_robust_list(0x555566b7c660, 24) = 0
[pid 5850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5850] setpgid(0, 0) = 0
[pid 5850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5850] write(3, "1000", 4) = 4
[pid 5850] close(3) = 0
executing program
[pid 5850] write(1, "executing program\n", 18) = 18
[pid 5850] memfd_create("syzkaller", 0) = 3
[pid 5850] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5850] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5850] munmap(0x7f0967600000, 138412032) = 0
[pid 5850] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5850] close(3) = 0
[pid 5850] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5850] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5850] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5850] exit_group(0) = ?
[pid 5850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5850, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=8 /* 0.08 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
, child_tidptr=0x555566b7c650) = 5851
[ 70.892752][ T5850] syz-executor257 (5850): drop_caches: 2
[ 70.898448][ T5850] syz-executor257 (5850): drop_caches: 2
[pid 5851] set_robust_list(0x555566b7c660, 24) = 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
[pid 5851] write(1, "executing program\n", 18executing program
) = 18
[pid 5851] memfd_create("syzkaller", 0) = 3
[pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5851] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5851] munmap(0x7f0967600000, 138412032) = 0
[pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5851] close(3) = 0
[pid 5851] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5851] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5851] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5851] exit_group(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=1 /* 0.01 s */, si_stime=11 /* 0.11 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 5852 attached
[ 71.224221][ T5851] syz-executor257 (5851): drop_caches: 2
[ 71.229924][ T5851] syz-executor257 (5851): drop_caches: 2
, child_tidptr=0x555566b7c650) = 5852
[pid 5852] set_robust_list(0x555566b7c660, 24) = 0
[pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5852] setpgid(0, 0) = 0
[pid 5852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5852] write(3, "1000", 4) = 4
[pid 5852] close(3) = 0
executing program
[pid 5852] write(1, "executing program\n", 18) = 18
[pid 5852] memfd_create("syzkaller", 0) = 3
[pid 5852] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5852] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5852] munmap(0x7f0967600000, 138412032) = 0
[pid 5852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5852] close(3) = 0
[pid 5852] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5852] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5852] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5852] exit_group(0) = ?
[pid 5852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5852, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[ 71.463006][ T5852] syz-executor257 (5852): drop_caches: 2
[ 71.468706][ T5852] syz-executor257 (5852): drop_caches: 2
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
[pid 5853] set_robust_list(0x555566b7c660, 24
[pid 5817] <... clone resumed>, child_tidptr=0x555566b7c650) = 5853
[pid 5853] <... set_robust_list resumed>) = 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] memfd_create("syzkaller", 0) = 3
[pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5853] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5853] munmap(0x7f0967600000, 138412032) = 0
[pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5853] close(3) = 0
[pid 5853] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5853] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5853] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5853] exit_group(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=3 /* 0.03 s */, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 71.733669][ T5853] syz-executor257 (5853): drop_caches: 2
[ 71.739370][ T5853] syz-executor257 (5853): drop_caches: 2
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 5854 attached
, child_tidptr=0x555566b7c650) = 5854
[pid 5854] set_robust_list(0x555566b7c660, 24) = 0
[pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5854] setpgid(0, 0) = 0
[pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5854] write(3, "1000", 4) = 4
[pid 5854] close(3) = 0
[pid 5854] write(1, "executing program\n", 18executing program
) = 18
[pid 5854] memfd_create("syzkaller", 0) = 3
[pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5854] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5854] munmap(0x7f0967600000, 138412032) = 0
[pid 5854] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5854] close(3) = 0
[pid 5854] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5854] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5854] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5854] exit_group(0) = ?
[pid 5854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 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 5855 attached
, child_tidptr=0x555566b7c650) = 5855
[ 72.015096][ T5854] syz-executor257 (5854): drop_caches: 2
[ 72.020825][ T5854] syz-executor257 (5854): drop_caches: 2
[pid 5855] set_robust_list(0x555566b7c660, 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] memfd_create("syzkaller", 0) = 3
[pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5855] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5855] munmap(0x7f0967600000, 138412032) = 0
[pid 5855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5855] close(3) = 0
[pid 5855] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5855] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5855] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5855] exit_group(0) = ?
[pid 5855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 72.289470][ T5855] syz-executor257 (5855): drop_caches: 2
[ 72.295494][ T5855] syz-executor257 (5855): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5856 attached
, child_tidptr=0x555566b7c650) = 5856
[pid 5856] set_robust_list(0x555566b7c660, 24) = 0
[pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5856] setpgid(0, 0) = 0
[pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5856] write(3, "1000", 4) = 4
[pid 5856] close(3) = 0
executing program
[pid 5856] write(1, "executing program\n", 18) = 18
[pid 5856] memfd_create("syzkaller", 0) = 3
[pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5856] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5856] munmap(0x7f0967600000, 138412032) = 0
[pid 5856] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5856] close(3) = 0
[pid 5856] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5856] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5856] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5856] exit_group(0) = ?
[pid 5856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 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=0x555566b7c650) = 5857
./strace-static-x86_64: Process 5857 attached
[pid 5857] set_robust_list(0x555566b7c660, 24) = 0
[ 72.570429][ T5856] syz-executor257 (5856): drop_caches: 2
[ 72.576160][ T5856] syz-executor257 (5856): drop_caches: 2
[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
[pid 5857] close(3) = 0
executing program
[pid 5857] write(1, "executing program\n", 18) = 18
[pid 5857] memfd_create("syzkaller", 0) = 3
[pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5857] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5857] munmap(0x7f0967600000, 138412032) = 0
[pid 5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5857] close(3) = 0
[pid 5857] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5857] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5857] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5857] exit_group(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=12 /* 0.12 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 5858 attached
, child_tidptr=0x555566b7c650) = 5858
[ 72.772132][ T5857] syz-executor257 (5857): drop_caches: 2
[ 72.777852][ T5857] syz-executor257 (5857): drop_caches: 2
[pid 5858] set_robust_list(0x555566b7c660, 24) = 0
[pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5858] setpgid(0, 0) = 0
[pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5858] write(3, "1000", 4) = 4
[pid 5858] close(3) = 0
[pid 5858] write(1, "executing program\n", 18executing program
) = 18
[pid 5858] memfd_create("syzkaller", 0) = 3
[pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5858] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5858] munmap(0x7f0967600000, 138412032) = 0
[pid 5858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5858] close(3) = 0
[pid 5858] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5858] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5858] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5858] exit_group(0) = ?
[pid 5858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 72.991852][ T5858] syz-executor257 (5858): drop_caches: 2
[ 72.997674][ T5858] syz-executor257 (5858): drop_caches: 2
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5859 attached
, child_tidptr=0x555566b7c650) = 5859
[pid 5859] set_robust_list(0x555566b7c660, 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
executing program
[pid 5859] write(1, "executing program\n", 18) = 18
[pid 5859] memfd_create("syzkaller", 0) = 3
[pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5859] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5859] munmap(0x7f0967600000, 138412032) = 0
[pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5859] close(3) = 0
[pid 5859] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid 5859] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid 5859] sendfile(4, 3, [100] => [671], 571) = 571
[pid 5859] exit_group(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=10 /* 0.10 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 5860 attached
, child_tidptr=0x555566b7c650) = 5860
[ 73.243973][ T5859] syz-executor257 (5859): drop_caches: 2
[ 73.249694][ T5859] syz-executor257 (5859): drop_caches: 2
[pid 5860] set_robust_list(0x555566b7c660, 24) = 0
[pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5860] setpgid(0, 0) = 0
[pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5860] write(3, "1000", 4) = 4
[pid 5860] close(3) = 0
[pid 5860] write(1, "executing program\n", 18executing program
) = 18
[pid 5860] memfd_create("syzkaller", 0) = 3
[pid 5860] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0967600000
[pid 5860] write(3, "\x58\x46\x53\x42\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa2\xf8\x2a\xab\x77\xf8\x42\x86\xaf\xd4\xa8\xf7\x47\xa7\x4b\xab\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x04\x20\x00\x00\x00\x00\x00\x00\x04\x21\x00\x00\x00\x00\x00\x00\x04\x22\x00\x00\x00\x01\x00\x00\x10\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\x04"..., 16777216) = 16777216
[pid 5860] munmap(0x7f0967600000, 138412032) = 0