INFO: task bch-reclaim/loo:9804 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:23192 pid:9804  tgid:9804  ppid:2      task_flags:0x200040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 bch2_journal_reclaim_thread+0x16b/0x4f0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5673:
 #0: ffff88801fecd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
3 locks held by kworker/u11:3/5863:
 #0: ffff888111a3c948 ((wq_completion)hci3){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003cefbc0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888123544dc0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d4/0x3a0
3 locks held by kworker/u8:5/6354:
6 locks held by syz-executor/9204:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff88812ce00278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
 #2: ffff88812ce4af68 (&j->reclaim_lock){+.+.}-{4:4}, at: journal_flush_done+0x86/0x810
 #3: ffff88812ce04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7f4/0xd80
 #4: ffff88812ce04740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x18bd/0x1a40
 #5: ffff88812ce26710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
1 lock held by bch-reclaim/loo/9804:
 #0: ffff88812ce4af68 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x16b/0x4f0
1 lock held by syz.0.449/9921:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.1.452/10009:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.465/10245:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.483/10682:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.3.489/10713:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.6.513/11162:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.8.526/11210:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.9.533/11426:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.2.555/11476:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x25c/0x3b0
1 lock held by syz.0.559/11484:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.604/11690:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.610/11703:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.1.616/11717:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
2 locks held by syz-executor/11767:
 #0: ffff8880392b00e0 (&type->s_umount_key#94){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8e13fa40 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x570
1 lock held by syz.6.623/11867:
 #0: ffff8880238dc0e0 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
2 locks held by syz.3.635/11959:

=============================================

NMI backtrace for cpu 0
CPU: 0 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+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 11767 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:qlist_move_cache+0x5b/0x120
Code: 07 00 00 00 00 eb 1f 4c 89 21 4d 89 67 08 49 c7 04 24 00 00 00 00 49 01 47 10 49 89 ec 48 85 ed 0f 84 b2 00 00 00 49 8b 2c 24 <4c> 8b 2d c6 4d 9a 0b 4c 89 e7 e8 f6 4e 51 ff 48 c1 e8 06 48 83 e0
RSP: 0018:ffffc90006147a30 EFLAGS: 00000086
RAX: 0000000000000040 RBX: ffff88801179b8c0 RCX: ffff88802e010000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88802028c000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000c28f28 R12: ffff88806d905500
R13: ffffea00018a9440 R14: ffffc90006147a68 R15: ffffffff99b27a00
FS:  000055555ddd7500(0000) GS:ffff8881a3c15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0689bff000 CR3: 0000000041652000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 kasan_quarantine_remove_cache+0x118/0x190
 kmem_cache_destroy+0x6e/0x160
 f2fs_put_super+0xb8c/0x1170
 generic_shutdown_super+0x135/0x2c0
 kill_block_super+0x44/0x90
 kill_f2fs_super+0x390/0x6c0
 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: 0033:0x7fe4c278fed7
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:00007ffc8690bc28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fe4c2811c05 RCX: 00007fe4c278fed7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc8690bce0
RBP: 00007ffc8690bce0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc8690cd70
R13: 00007fe4c2811c05 R14: 000000000006cb3b R15: 00007ffc8690cdb0
 </TASK>
