INFO: task kworker/u8:1:13 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:23024 pid:13    tgid:13    ppid:2      task_flags:0x4208160 flags:0x00004000
Workqueue: btree_node_rewrite async_btree_node_rewrite_work
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_btree_update_start+0x18dc/0x1de0
 bch2_btree_node_rewrite+0x17e/0x1120
 bch2_btree_node_rewrite_key+0x273/0x320
 async_btree_node_rewrite_work+0x110/0x4f0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task syz.4.1456:12675 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.1456      state:D stack:17936 pid:12675 tgid:12673 ppid:10228  task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_btree_update_start+0x18dc/0x1de0
 bch2_btree_split_leaf+0x14b/0x8e0
 bch2_trans_commit_error+0x1b7/0x1130
 __bch2_trans_commit+0x1bb5/0x8870
 bch2_journal_replay+0x1e85/0x2630
 __bch2_run_recovery_passes+0x3bd/0x1060
 bch2_run_recovery_passes+0x184/0x210
 bch2_fs_recovery+0x2690/0x3a50
 bch2_fs_start+0xaaf/0xda0
 bch2_fs_get_tree+0xb39/0x1520
 vfs_get_tree+0x92/0x2b0
 do_new_mount+0x2a2/0x9e0
 __se_sys_mount+0x317/0x410
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f348439038a
RSP: 002b:00007f348526fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f348526fef0 RCX: 00007f348439038a
RDX: 00002000000003c0 RSI: 0000200000000000 RDI: 00007f348526feb0
RBP: 00002000000003c0 R08: 00007f348526fef0 R09: 000000000180c844
R10: 000000000180c844 R11: 0000000000000246 R12: 0000200000000000
R13: 00007f348526feb0 R14: 0000000000005960 R15: 0000200000000040
 </TASK>
INFO: task bch-reclaim/loo:12688 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:23944 pid:12688 tgid:12688 ppid:2      task_flags:0x200840 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_btree_update_start+0x18dc/0x1de0
 bch2_btree_split_leaf+0x14b/0x8e0
 bch2_trans_commit_error+0x1b7/0x1130
 __bch2_trans_commit+0x1bb5/0x8870
 bch2_btree_write_buffer_flush_locked+0x451f/0x4dd0
 btree_write_buffer_flush_seq+0x18c7/0x1a40
 bch2_btree_write_buffer_journal_flush+0x69/0xb0
 journal_flush_pins+0x8e3/0xe90
 __bch2_journal_reclaim+0x910/0xed0
 bch2_journal_reclaim_thread+0x177/0x4f0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 14448 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__queue_work+0x123/0xfb0
Code: 1d 00 48 8d 05 00 00 00 00 48 c7 c7 a0 9e 13 8e 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 48 89 44 24 30 50 e8 dd 55 13 00 <48> 83 c4 08 e8 54 7a ef 09 89 c3 31 ff 89 c6 e8 d9 aa 35 00 85 db
RSP: 0018:ffffc90000007b08 EFLAGS: 00000082
RAX: 2a9af834da01ae00 RBX: 0000000000000000 RCX: 2a9af834da01ae00
RDX: 0000000000000000 RSI: ffffffff8be33660 RDI: ffffffff8be33620
RBP: 1ffff11021292f38 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff818a17a0 R12: dffffc0000000000
R13: ffff88810edc57e0 R14: 0000000000000008 R15: ffff888109497800
FS:  0000555559e99500(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc012ce48 CR3: 000000012663a000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x646/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:vprintk_emit+0x58f/0x7a0
Code: 85 32 01 00 00 e8 c1 86 1f 00 41 89 df 4d 85 f6 48 8b 1c 24 75 07 e8 b0 86 1f 00 eb 06 e8 a9 86 1f 00 fb 48 c7 c7 60 e1 12 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 b9 35
RSP: 0018:ffffc90006e47980 EFLAGS: 00000293
RAX: ffffffff81a02487 RBX: ffffffff81a02344 RCX: ffff88802f3f0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e12e160
RBP: ffffc90006e47a90 R08: ffffffff8fa38337 R09: 1ffffffff1f47066
R10: dffffc0000000000 R11: fffffbfff1f47067 R12: dffffc0000000000
R13: 1ffff92000dc8f34 R14: 0000000000000200 R15: 0000000000000047
 _printk+0xcf/0x120
 xfs_printk_level+0x18b/0x280
 xfs_fs_put_super+0x55/0x160
 generic_shutdown_super+0x135/0x2c0
 kill_block_super+0x44/0x90
 xfs_kill_sb+0x15/0x50
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x425/0x4c0
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7ece58ff17
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffc012d5f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7ece611c05 RCX: 00007f7ece58ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffc012d6b0
RBP: 00007fffc012d6b0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffc012e740
R13: 00007f7ece611c05 R14: 0000000000082058 R15: 00007fffc012e780
 </TASK>
