program: syz_mount_image$hfs(&(0x7f0000002c80), &(0x7f0000000080)='./file1\x00', 0x4490, &(0x7f0000002cc0)=ANY=[], 0xfb, 0x27f, &(0x7f0000000480)="$eJzs3T9v00AYx/HfOWkbaFXcPwgJMRUqMaG2LIilCGVgZ2FCQBOkiqhIUMSfKTAj2Nl5C7wARibEjMTGxAvIFnTnC3HSOA5W00vS70dKlNT32M/F5949rqoIwKl1u/rr8/Xf9mGkkkqSbkqRpIpUlnReFyovDg73Dxv12rAdlVyEfRglkeZIm72D+qBQG+civNi+K2sp/TOMR+Wnmh9v3XkZOg+E5a7+ASJpwV+dbnvlxDMbj2boBAIzLbX0Ssuh8wAAhOXn/8jP80t+/R5F0qaf9nvn/ymfQFuhExizrznbU/O/q7Laxp7fc25Tt95zJZzdHnWqxCK5zCsZWT0LTJNXVbpcojOP9xv1a3tPG7VI77TrzXWbrbvnWjJ0O9LZvj26640BtekQxfu+6PowZ/uwk84/1WTteI+Yz3wz3819E+uTav/Wf+W2safJnam470wl+W9l79H1cl6uVUYvV9xBLvojeEN7WVJGRaLOiFpR7w2COC9PF7XaF5X0bjsnam1g1E5O1Hp/VHc0Z0eOm/lg7pkN/dEXVVPr/8h+2psa5cq0bVxLPzKG9qfsWsZuPvFXXfPSwJZR0R6hgPd6pBtafv76zZOHjUb92cy+sFfiBKQxUS86g2BS8pnZF/ZDDnL0zrxTfD/BfjPhBHVP+n8G8reZWWHXXSap/1L1ypZbrNmnuHedvpCObeftPLXH7YzaYNU9n82u4HoYd+thMbuCG7XmunxVujLKEROxz3Py7BYJMlX90APu/wMAAAAAAAAAAAAAAAAAAEyb4/uXg4qyNoXuIwAAAAAAAAAAAAAAAAAAAAAA027ivv/3rpJ3fP8vMHZ/AwAA////DnhI") r0 = creat(&(0x7f0000000040)='./bus\x00', 0x0) fcntl$setstatus(r0, 0x4, 0x6000) io_setup(0x202, &(0x7f0000000200)=0x0) ftruncate(r0, 0x81fd) syz_mount_image$erofs(&(0x7f00000012c0), &(0x7f0000000240)='./file0\x00', 0x2000401, &(0x7f0000000000)=ANY=[], 0x1, 0x235, &(0x7f0000001300)="$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") llistxattr(&(0x7f0000000140)='./file0\x00', 0x0, 0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0x0, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x4000, 0xa00}]) r2 = openat$cgroup_ro(r0, &(0x7f0000000040)='memory.numa_stat\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000180), 0xfea7) r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cgroup.controllers\x00', 0xb00000000065808, 0x0) r4 = socket$nl_generic(0x10, 0x3, 0x10) sendfile(r4, r3, 0x0, 0x100000002) [ 73.904202][ T5324] loop0: detected capacity change from 0 to 64 [ 73.933273][ T4672] Bluetooth: hci0: command tx timeout [ 74.057908][ T5317] ------------[ cut here ]------------ [ 74.058035][ T5317] [ 74.058064][ T5317] ====================================================== [ 74.058086][ T5317] WARNING: possible circular locking dependency detected [ 74.058092][ T5317] syzkaller #0 Not tainted [ 74.058107][ T5317] ------------------------------------------------------ [ 74.058111][ T5317] kworker/0:4/5317 is trying to acquire lock: [ 74.058117][ T5317] ffffffff8e54c700 (console_owner){....}-{0:0}, at: console_flush_all+0x123/0xb20 [ 74.058268][ T5317] [ 74.058268][ T5317] but task is already holding lock: [ 74.058271][ T5317] ffff88801fc3a098 (&pool->lock){-.-.}-{2:2}, at: __flush_work+0x1ef/0xc50 [ 74.058288][ T5317] [ 74.058288][ T5317] which lock already depends on the new lock. [ 74.058288][ T5317] [ 74.058290][ T5317] [ 74.058290][ T5317] the existing dependency chain (in reverse order) is: [ 74.058293][ T5317] [ 74.058293][ T5317] -> #3 (&pool->lock){-.-.}-{2:2}: [ 74.058307][ T5317] _raw_spin_lock+0x2e/0x40 [ 74.058364][ T5317] __queue_work+0x7ea/0xf90 [ 74.058372][ T5317] queue_work_on+0x106/0x1d0 [ 74.058380][ T5317] rpm_suspend+0xe85/0x1700 [ 74.058458][ T5317] __pm_runtime_idle+0x12f/0x1a0 [ 74.058470][ T5317] __device_attach+0x34f/0x450 [ 74.058497][ T5317] device_initial_probe+0xa1/0xd0 [ 74.058510][ T5317] bus_probe_device+0x12a/0x220 [ 74.058521][ T5317] device_add+0x7b6/0xb70 [ 74.058533][ T5317] serial_base_port_add+0x18f/0x260 [ 74.058565][ T5317] serial_core_register_port+0x375/0x28b0 [ 74.058580][ T5317] serial8250_register_8250_port+0x1658/0x1fd0 [ 74.058602][ T5317] serial_pnp_probe+0x568/0x7f0 [ 74.058615][ T5317] pnp_device_probe+0x30b/0x4c0 [ 74.058649][ T5317] really_probe+0x267/0xaf0 [ 74.058658][ T5317] __driver_probe_device+0x18c/0x320 [ 74.058672][ T5317] driver_probe_device+0x4f/0x240 [ 74.058680][ T5317] __driver_attach+0x349/0x640 [ 74.058693][ T5317] bus_for_each_dev+0x23b/0x2c0 [ 74.058703][ T5317] bus_add_driver+0x345/0x670 [ 74.058714][ T5317] driver_register+0x23a/0x320 [ 74.058723][ T5317] serial8250_init+0x8f/0x160 [ 74.058736][ T5317] do_one_initcall+0x250/0x840 [ 74.058749][ T5317] do_initcall_level+0x104/0x190 [ 74.058758][ T5317] do_initcalls+0x59/0xa0 [ 74.058767][ T5317] kernel_init_freeable+0x2a6/0x3d0 [ 74.058776][ T5317] kernel_init+0x1d/0x1d0 [ 74.058787][ T5317] ret_from_fork+0x51b/0xa40 [ 74.058796][ T5317] ret_from_fork_asm+0x1a/0x30 [ 74.058809][ T5317] [ 74.058809][ T5317] -> #2 (&dev->power.lock){-.-.}-{3:3}: [ 74.058825][ T5317] _raw_spin_lock_irqsave+0x40/0x60 [ 74.058838][ T5317] __pm_runtime_resume+0x10f/0x180 [ 74.058851][ T5317] __uart_start+0x171/0x460 [ 74.058865][ T5317] uart_write+0x265/0xa10 [ 74.058872][ T5317] n_tty_write+0xd84/0x12a0 [ 74.058900][ T5317] file_tty_write+0x559/0xa20 [ 74.058914][ T5317] vfs_write+0x61d/0xb90 [ 74.058971][ T5317] ksys_write+0x150/0x270 [ 74.058983][ T5317] do_syscall_64+0xe2/0xf80 [ 74.058993][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.059004][ T5317] [ 74.059004][ T5317] -> #1 (&port_lock_key){-...}-{3:3}: [ 74.059019][ T5317] _raw_spin_lock_irqsave+0x40/0x60 [ 74.059034][ T5317] serial8250_console_write+0x150/0x1ba0 [ 74.059045][ T5317] console_flush_all+0x718/0xb20 [ 74.059057][ T5317] console_unlock+0xd1/0x1c0 [ 74.059065][ T5317] vprintk_emit+0x485/0x560 [ 74.059074][ T5317] _printk+0xdd/0x130 [ 74.059088][ T5317] register_console+0xbc2/0xfa0 [ 74.059099][ T5317] univ8250_console_init+0x3a/0x70 [ 74.059112][ T5317] console_init+0xfc/0x3e0 [ 74.059123][ T5317] start_kernel+0x226/0x3d0 [ 74.059137][ T5317] x86_64_start_reservations+0x24/0x30 [ 74.059149][ T5317] x86_64_start_kernel+0x143/0x1c0 [ 74.059161][ T5317] common_startup_64+0x13e/0x147 [ 74.059174][ T5317] [ 74.059174][ T5317] -> #0 (console_owner){....}-{0:0}: [ 74.059188][ T5317] __lock_acquire+0x15a5/0x2cf0 [ 74.059202][ T5317] lock_acquire+0x106/0x330 [ 74.059215][ T5317] console_flush_all+0x6c1/0xb20 [ 74.059226][ T5317] console_unlock+0xd1/0x1c0 [ 74.059236][ T5317] vprintk_emit+0x485/0x560 [ 74.059245][ T5317] _printk+0xdd/0x130 [ 74.059258][ T5317] __report_bug+0x317/0x540 [ 74.059267][ T5317] report_bug_entry+0x19a/0x290 [ 74.059275][ T5317] handle_bug+0xca/0x200 [ 74.059286][ T5317] exc_invalid_op+0x1a/0x50 [ 74.059296][ T5317] asm_exc_invalid_op+0x1a/0x20 [ 74.059306][ T5317] check_flush_dependency+0x312/0x3c0 [ 74.059317][ T5317] __flush_work+0x411/0xc50 [ 74.059327][ T5317] hfs_file_fsync+0xee/0x140 [ 74.059354][ T5317] dio_complete+0x5f4/0x790 [ 74.059369][ T5317] process_scheduled_works+0xaec/0x17a0 [ 74.059383][ T5317] worker_thread+0xda6/0x1360 [ 74.059391][ T5317] kthread+0x726/0x8b0 [ 74.059401][ T5317] ret_from_fork+0x51b/0xa40 [ 74.059409][ T5317] ret_from_fork_asm+0x1a/0x30 [ 74.059422][ T5317] [ 74.059422][ T5317] other info that might help us debug this: [ 74.059422][ T5317] [ 74.059425][ T5317] Chain exists of: [ 74.059425][ T5317] console_owner --> &dev->power.lock --> &pool->lock [ 74.059425][ T5317] [ 74.059440][ T5317] Possible unsafe locking scenario: [ 74.059440][ T5317] [ 74.059443][ T5317] CPU0 CPU1 [ 74.059463][ T5317] ---- ---- [ 74.059466][ T5317] lock(&pool->lock); [ 74.059473][ T5317] lock(&dev->power.lock); [ 74.059481][ T5317] lock(&pool->lock); [ 74.059489][ T5317] lock(console_owner); [ 74.059495][ T5317] [ 74.059495][ T5317] *** DEADLOCK *** [ 74.059495][ T5317] [ 74.059498][ T5317] 7 locks held by kworker/0:4/5317: [ 74.059504][ T5317] #0: ffff888034108148 ((wq_completion)dio/loop0){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0 [ 74.059535][ T5317] #1: ffffc9000d49fbc0 ((work_completion)(&dio->complete_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0 [ 74.059566][ T5317] #2: ffff8880436d1620 (&sb->s_type->i_mutex_key#24){+.+.}-{4:4}, at: hfs_file_fsync+0x9a/0x140 [ 74.059632][ T5317] #3: ffffffff8e55a360 (rcu_read_lock){....}-{1:3}, at: __flush_work+0x100/0xc50 [ 74.059658][ T5317] #4: ffff88801fc3a098 (&pool->lock){-.-.}-{2:2}, at: __flush_work+0x1ef/0xc50 [ 74.059683][ T5317] #5: ffffffff8e54c760 (console_lock){+.+.}-{0:0}, at: _printk+0xdd/0x130 [ 74.059711][ T5317] #6: ffffffff8e434018 (console_srcu){....}-{0:0}, at: console_flush_all+0x123/0xb20 [ 74.059736][ T5317] [ 74.059736][ T5317] stack backtrace: [ 74.059743][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) [ 74.059755][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 74.059762][ T5317] Workqueue: dio/loop0 dio_aio_complete_work [ 74.059775][ T5317] Call Trace: [ 74.059780][ T5317] [ 74.059808][ T5317] dump_stack_lvl+0xe8/0x150 [ 74.059822][ T5317] print_circular_bug+0x2e1/0x300 [ 74.059834][ T5317] check_noncircular+0x12e/0x150 [ 74.059847][ T5317] __lock_acquire+0x15a5/0x2cf0 [ 74.059866][ T5317] ? console_flush_all+0x123/0xb20 [ 74.059877][ T5317] lock_acquire+0x106/0x330 [ 74.059891][ T5317] ? console_flush_all+0x123/0xb20 [ 74.059903][ T5317] ? do_raw_spin_unlock+0x4d/0x210 [ 74.059915][ T5317] ? console_flush_all+0x123/0xb20 [ 74.059927][ T5317] console_flush_all+0x6c1/0xb20 [ 74.059938][ T5317] ? console_flush_all+0x123/0xb20 [ 74.059949][ T5317] ? console_flush_all+0x123/0xb20 [ 74.059961][ T5317] ? __pfx_console_flush_all+0x10/0x10 [ 74.059972][ T5317] ? is_printk_cpu_sync_owner+0x32/0x40 [ 74.059985][ T5317] console_unlock+0xd1/0x1c0 [ 74.059996][ T5317] ? __pfx_console_unlock+0x10/0x10 [ 74.060005][ T5317] ? _raw_spin_unlock+0x50/0x50 [ 74.060019][ T5317] ? _printk+0xdd/0x130 [ 74.060034][ T5317] vprintk_emit+0x485/0x560 [ 74.060044][ T5317] ? __pfx_vprintk_emit+0x10/0x10 [ 74.060054][ T5317] ? unwind_next_frame+0xa5/0x23c0 [ 74.060067][ T5317] _printk+0xdd/0x130 [ 74.060082][ T5317] ? __pfx__printk+0x10/0x10 [ 74.060096][ T5317] ? unwind_next_frame+0xa5/0x23c0 [ 74.060107][ T5317] ? ret_from_fork_asm+0x1a/0x30 [ 74.060120][ T5317] ? ret_from_fork_asm+0x1a/0x30 [ 74.060133][ T5317] ? check_flush_dependency+0x28f/0x3c0 [ 74.060142][ T5317] __report_bug+0x317/0x540 [ 74.060149][ T5317] ? lock_acquire+0x106/0x330 [ 74.060163][ T5317] ? check_flush_dependency+0x28f/0x3c0 [ 74.060173][ T5317] ? __pfx___report_bug+0x10/0x10 [ 74.060183][ T5317] ? __lock_acquire+0x6b5/0x2cf0 [ 74.060200][ T5317] report_bug_entry+0x19a/0x290 [ 74.060209][ T5317] ? check_flush_dependency+0x312/0x3c0 [ 74.060220][ T5317] ? check_flush_dependency+0x317/0x3c0 [ 74.060236][ T5317] handle_bug+0xca/0x200 [ 74.060248][ T5317] exc_invalid_op+0x1a/0x50 [ 74.060259][ T5317] asm_exc_invalid_op+0x1a/0x20 [ 74.060270][ T5317] RIP: 0010:check_flush_dependency+0x312/0x3c0 [ 74.060282][ T5317] Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 35 d5 a1 00 49 8b 16 48 81 c3 78 01 00 00 4c 89 ef 4c 89 e6 48 89 d9 4c 8b 04 24 <67> 48 0f b9 3a e9 53 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f [ 74.060329][ T5317] RSP: 0018:ffffc9000d49f7e0 EFLAGS: 00010086 [ 74.060359][ T5317] RAX: 1ffff11003925ae3 RBX: ffff88801a867d78 RCX: ffff88801a867d78 [ 74.060367][ T5317] RDX: ffffffff82554cc0 RSI: ffff888034108178 RDI: ffffffff8ff22d30 [ 74.060374][ T5317] RBP: ffff8880127a8008 R08: ffffffff82acf630 R09: 1ffff110024e5729 [ 74.060382][ T5317] R10: dffffc0000000000 R11: ffffed10024e572a R12: ffff888034108178 [ 74.060390][ T5317] R13: ffffffff8ff22d30 R14: ffff88801c92d718 R15: ffff88801c92d720 [ 74.060400][ T5317] ? __pfx_flush_mdb+0x10/0x10 [ 74.060414][ T5317] ? __pfx_dio_aio_complete_work+0x10/0x10 [ 74.060425][ T5317] ? __pfx_flush_mdb+0x10/0x10 [ 74.060439][ T5317] __flush_work+0x411/0xc50 [ 74.060450][ T5317] ? __flush_work+0x100/0xc50 [ 74.060461][ T5317] ? __pfx___flush_work+0x10/0x10 [ 74.060476][ T5317] hfs_file_fsync+0xee/0x140 [ 74.060490][ T5317] dio_complete+0x5f4/0x790 [ 74.060505][ T5317] ? process_scheduled_works+0xa0f/0x17a0 [ 74.060520][ T5317] process_scheduled_works+0xaec/0x17a0 [ 74.060539][ T5317] ? __pfx_process_scheduled_works+0x10/0x10 [ 74.060571][ T5317] ? do_raw_spin_lock+0x12b/0x2f0 [ 74.060584][ T5317] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 74.060601][ T5317] ? schedule+0x90/0x360 [ 74.060617][ T5317] worker_thread+0xda6/0x1360 [ 74.060629][ T5317] ? __kthread_parkme+0x19c/0x1f0 [ 74.060640][ T5317] kthread+0x726/0x8b0 [ 74.060651][ T5317] ? __pfx_worker_thread+0x10/0x10 [ 74.060660][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.060672][ T5317] ? _raw_spin_unlock_irq+0x23/0x50 [ 74.060685][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.060696][ T5317] ret_from_fork+0x51b/0xa40 [ 74.060706][ T5317] ? __pfx_ret_from_fork+0x10/0x10 [ 74.060715][ T5317] ? __switch_to+0xc82/0x1410 [ 74.060729][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.060741][ T5317] ret_from_fork_asm+0x1a/0x30 [ 74.060758][ T5317] [ 74.541986][ T5317] workqueue: WQ_MEM_RECLAIM dio/loop0:dio_aio_complete_work is flushing !WQ_MEM_RECLAIM events_long:flush_mdb [ 74.542010][ T5317] WARNING: kernel/workqueue.c:3754 at check_flush_dependency+0x28f/0x3c0, CPU#0: kworker/0:4/5317 [ 74.550003][ T5317] Modules linked in: [ 74.551439][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) [ 74.554624][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 74.558055][ T5317] Workqueue: dio/loop0 dio_aio_complete_work [ 74.560124][ T5317] RIP: 0010:check_flush_dependency+0x312/0x3c0 [ 74.562231][ T5317] Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 35 d5 a1 00 49 8b 16 48 81 c3 78 01 00 00 4c 89 ef 4c 89 e6 48 89 d9 4c 8b 04 24 <67> 48 0f b9 3a e9 53 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f [ 74.568711][ T5317] RSP: 0018:ffffc9000d49f7e0 EFLAGS: 00010086 [ 74.570930][ T5317] RAX: 1ffff11003925ae3 RBX: ffff88801a867d78 RCX: ffff88801a867d78 [ 74.574327][ T5317] RDX: ffffffff82554cc0 RSI: ffff888034108178 RDI: ffffffff8ff22d30 [ 74.577802][ T5317] RBP: ffff8880127a8008 R08: ffffffff82acf630 R09: 1ffff110024e5729 [ 74.581269][ T5317] R10: dffffc0000000000 R11: ffffed10024e572a R12: ffff888034108178 [ 74.584663][ T5317] R13: ffffffff8ff22d30 R14: ffff88801c92d718 R15: ffff88801c92d720 [ 74.587989][ T5317] FS: 0000000000000000(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000 [ 74.592533][ T5317] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.595977][ T5317] CR2: 00007f62f06708c0 CR3: 000000001a730000 CR4: 0000000000352ef0 [ 74.599855][ T5317] Call Trace: [ 74.601310][ T5317] [ 74.602599][ T5317] ? __pfx_flush_mdb+0x10/0x10 [ 74.604719][ T5317] __flush_work+0x411/0xc50 [ 74.606642][ T5317] ? __flush_work+0x100/0xc50 [ 74.608648][ T5317] ? __pfx___flush_work+0x10/0x10 [ 74.610802][ T5317] hfs_file_fsync+0xee/0x140 [ 74.612823][ T5317] dio_complete+0x5f4/0x790 [ 74.614794][ T5317] ? process_scheduled_works+0xa0f/0x17a0 [ 74.617209][ T5317] process_scheduled_works+0xaec/0x17a0 [ 74.619557][ T5317] ? __pfx_process_scheduled_works+0x10/0x10 [ 74.621973][ T5317] ? do_raw_spin_lock+0x12b/0x2f0 [ 74.624594][ T5317] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 74.627598][ T5317] ? schedule+0x90/0x360 [ 74.630024][ T5317] worker_thread+0xda6/0x1360 [ 74.645224][ T5317] ? __kthread_parkme+0x19c/0x1f0 [ 74.647530][ T5317] kthread+0x726/0x8b0 [ 74.651446][ T5317] ? __pfx_worker_thread+0x10/0x10 [ 74.654343][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.658555][ T5317] ? _raw_spin_unlock_irq+0x23/0x50 [ 74.661413][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.663976][ T5317] ret_from_fork+0x51b/0xa40 [ 74.666202][ T5317] ? __pfx_ret_from_fork+0x10/0x10 [ 74.668610][ T5317] ? __switch_to+0xc82/0x1410 [ 74.670732][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.672913][ T5317] ret_from_fork_asm+0x1a/0x30 [ 74.675383][ T5317] [ 74.677091][ T5317] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 74.681175][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) [ 74.685599][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 74.690094][ T5317] Workqueue: dio/loop0 dio_aio_complete_work [ 74.692926][ T5317] Call Trace: [ 74.694422][ T5317] [ 74.695896][ T5317] vpanic+0x1e0/0x670 [ 74.697696][ T5317] panic+0xc5/0xd0 [ 74.699477][ T5317] ? __pfx_panic+0x10/0x10 [ 74.701564][ T5317] ? ret_from_fork_asm+0x1a/0x30 [ 74.703801][ T5317] __warn+0x315/0x4a0 [ 74.705538][ T5317] ? check_flush_dependency+0x28f/0x3c0 [ 74.707906][ T5317] ? check_flush_dependency+0x28f/0x3c0 [ 74.710132][ T5317] __report_bug+0x29a/0x540 [ 74.711933][ T5317] ? lock_acquire+0x106/0x330 [ 74.713788][ T5317] ? check_flush_dependency+0x28f/0x3c0 [ 74.716338][ T5317] ? __pfx___report_bug+0x10/0x10 [ 74.718479][ T5317] ? __pfx_dio_aio_complete_work+0x10/0x10 [ 74.720986][ T5317] ? __pfx_flush_mdb+0x10/0x10 [ 74.723096][ T5317] report_bug_entry+0x19a/0x290 [ 74.725165][ T5317] ? check_flush_dependency+0x312/0x3c0 [ 74.727494][ T5317] ? check_flush_dependency+0x317/0x3c0 [ 74.729856][ T5317] handle_bug+0xca/0x200 [ 74.731685][ T5317] exc_invalid_op+0x1a/0x50 [ 74.733506][ T5317] asm_exc_invalid_op+0x1a/0x20 [ 74.735608][ T5317] RIP: 0010:check_flush_dependency+0x312/0x3c0 [ 74.738353][ T5317] Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 f7 e8 35 d5 a1 00 49 8b 16 48 81 c3 78 01 00 00 4c 89 ef 4c 89 e6 48 89 d9 4c 8b 04 24 <67> 48 0f b9 3a e9 53 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f [ 74.746703][ T5317] RSP: 0018:ffffc9000d49f7e0 EFLAGS: 00010086 [ 74.749424][ T5317] RAX: 1ffff11003925ae3 RBX: ffff88801a867d78 RCX: ffff88801a867d78 [ 74.752817][ T5317] RDX: ffffffff82554cc0 RSI: ffff888034108178 RDI: ffffffff8ff22d30 [ 74.756045][ T5317] RBP: ffff8880127a8008 R08: ffffffff82acf630 R09: 1ffff110024e5729 [ 74.759846][ T5317] R10: dffffc0000000000 R11: ffffed10024e572a R12: ffff888034108178 [ 74.766381][ T5317] R13: ffffffff8ff22d30 R14: ffff88801c92d718 R15: ffff88801c92d720 [ 74.770762][ T5317] ? __pfx_flush_mdb+0x10/0x10 [ 74.773051][ T5317] ? __pfx_dio_aio_complete_work+0x10/0x10 [ 74.775299][ T5317] ? __pfx_flush_mdb+0x10/0x10 [ 74.777169][ T5317] __flush_work+0x411/0xc50 [ 74.778928][ T5317] ? __flush_work+0x100/0xc50 [ 74.780805][ T5317] ? __pfx___flush_work+0x10/0x10 [ 74.783334][ T5317] hfs_file_fsync+0xee/0x140 [ 74.785901][ T5317] dio_complete+0x5f4/0x790 [ 74.788305][ T5317] ? process_scheduled_works+0xa0f/0x17a0 [ 74.791029][ T5317] process_scheduled_works+0xaec/0x17a0 [ 74.793709][ T5317] ? __pfx_process_scheduled_works+0x10/0x10 [ 74.796470][ T5317] ? do_raw_spin_lock+0x12b/0x2f0 [ 74.798822][ T5317] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 74.800897][ T5317] ? schedule+0x90/0x360 [ 74.802589][ T5317] worker_thread+0xda6/0x1360 [ 74.804449][ T5317] ? __kthread_parkme+0x19c/0x1f0 [ 74.806393][ T5317] kthread+0x726/0x8b0 [ 74.808038][ T5317] ? __pfx_worker_thread+0x10/0x10 [ 74.810008][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.811874][ T5317] ? _raw_spin_unlock_irq+0x23/0x50 [ 74.814137][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.816587][ T5317] ret_from_fork+0x51b/0xa40 [ 74.819007][ T5317] ? __pfx_ret_from_fork+0x10/0x10 [ 74.821248][ T5317] ? __switch_to+0xc82/0x1410 [ 74.823316][ T5317] ? __pfx_kthread+0x10/0x10 [ 74.825297][ T5317] ret_from_fork_asm+0x1a/0x30 [ 74.827364][ T5317] [ 74.828972][ T5317] Kernel Offset: disabled [ 74.831418][ T5317] Rebooting in 86400 seconds..