INFO: task syz.2.884:11231 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.884       state:D stack:25128 pid:11231 tgid:11230 ppid:9395   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_read_slowpath+0x5fd/0x8f0
 down_read+0x98/0x2e0
 super_lock+0x2a9/0x3b0
 user_get_super+0xc8/0x120
 __se_sys_quotactl+0x4da/0x950
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1296d8eba9
RSP: 002b:00007f1297be3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f1296fd5fa0 RCX: 00007f1296d8eba9
RDX: 0000000000000000 RSI: 0000200000000340 RDI: ffffffff80000801
RBP: 00007f1296e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1296fd6038 R14: 00007f1296fd5fa0 R15: 00007ffcbcfb92d8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139f20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5676:
 #0: ffff88810deb90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by syz-executor/5851:
 #0: ffff8881239bc0e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff88812c580278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
2 locks held by syz-executor/5854:
 #0: ffff88812629a0e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: 
ffff88802c200278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
2 locks held by kworker/u8:3/5876:
2 locks held by kworker/u13:3/6233:
 #0: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffff888136624008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
2 locks held by syz-executor/7286:
 #0: 
ffff8881272420e0
 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff88802af00278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
2 locks held by syz-executor/7773:
 #0: ffff888107b100e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff88802ca80278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
1 lock held by syz.2.884/11231:
 #0: ffff8881239bc0e0
 (&type->s_umount_key#53){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.1377/13080:
 #0: ffff888107b100e0
 (&type->s_umount_key#53){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
3 locks held by syz.6.1585/14203:
 #0: 
ffff888000700920 (&c->sb_lock){+.+.}-{4:4}, at: bch2_fs_open+0x11e5/0x2600
 #1: ffff8880007049d8 (&c->mark_lock){++++}-{0:0}, at: bch2_sb_replicas_to_cpu_replicas+0x117/0x1a0
 #2: ffffffff8e13f9b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730

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

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: 14184 Comm: syz.7.1581 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:lock_is_held_type+0x51/0x190
Code: a6 29 04 00 0f 84 fe 00 00 00 65 8b 05 08 c5 26 07 85 c0 0f 85 ef 00 00 00 65 4c 8b 2c 25 08 b0 a0 92 41 83 bd ec 0a 00 00 00 <0f> 85 d8 00 00 00 89 f5 49 89 fe 48 c7 04 24 00 00 00 00 9c 8f 04
RSP: 0000:ffffc90004b3faf8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000000
RDX: ffff888068e19cc0 RSI: 00000000ffffffff RDI: ffffffff8e1713a8
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff84b183bd
R10: dffffc0000000000 R11: fffffbfff1f47407 R12: ffff888028145980
R13: ffff888068e19cc0 R14: ffff888068e19cc0 R15: dffffc0000000000
FS:  000055556a1de500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f98da8d58 CR3: 0000000071c46000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 blkcg_css+0xa5/0x1d0
 blk_cgroup_congested+0xbc/0x210
 __folio_throttle_swaprate+0x80/0x1c0
 folio_prealloc+0x10d/0x180
 __handle_mm_fault+0x2ab9/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0xa81/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f4f97f46616
Code: 8d 3c 30 4c 89 de 4c 89 54 24 38 e8 64 86 04 00 4c 8b 54 24 38 85 c0 0f 85 57 01 00 00 48 8b 44 24 28 48 89 df 4c 89 54 24 38 <4c> 89 93 98 06 00 00 48 89 83 90 06 00 00 48 8d 83 10 03 00 00 4c
RSP: 002b:00007ffc9a61e9c0 EFLAGS: 00010246
RAX: 00007f4f98d88000 RBX: 00007f4f98da86c0 RCX: 00007f4f97f8ec67
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f4f98da86c0
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffc9a61eb10
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
 </TASK>
