INFO: task syz.8.3013:14236 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.3013      state:D stack:26024 pid:14236 tgid:14235 ppid:12056  task_flags:0x400140 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
 __iterate_supers+0x126/0x290
 __se_sys_quotactl+0x353/0x950
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f703d58ebe9
RSP: 002b:00007f703e378038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f703d7b5fa0 RCX: 00007f703d58ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000102
RBP: 00007f703d611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f703d7b6038 R14: 00007f703d7b5fa0 R15: 00007fffca8f7988
 </TASK>
INFO: lockdep is turned off.
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+0x3fc/0x770
 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: 9725 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:filemap_get_entry+0xa1/0x2f0
Code: c9 ff 49 83 c6 08 4c 89 74 24 20 48 89 5c 24 28 48 c7 44 24 30 00 00 00 00 48 8d 7c 24 40 ba 18 00 00 00 31 f6 e8 df 7a 2c 00 <e8> 3a 7a b0 ff 48 8d 1d 00 00 00 00 48 c7 c7 a0 9e 13 8e 31 f6 31
RSP: 0018:ffffc900031df620 EFLAGS: 00000246
RAX: ffffc900031df660 RBX: 000000000000000a RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900031df678
RBP: ffffc900031df6f0 R08: ffffc900031df677 R09: 0000000000000000
R10: ffffc900031df660 R11: fffff5200063becf R12: 1ffff9200063bec4
R13: dffffc0000000000 R14: ffff88802ca0e4d0 R15: 000000000000000a
FS:  0000555582c0e500(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000e35030 CR3: 000000002a206000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __filemap_get_folio+0x68/0xaf0
 f2fs_grab_cache_folio+0x2b/0x380
 __get_node_folio+0x194/0x1410
 f2fs_update_inode_page+0x82/0x190
 f2fs_write_checkpoint+0xb6e/0x1df0
 kill_f2fs_super+0x2c3/0x6c0
 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: 0033:0x7fbf6798ff17
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:00007ffe89428b48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fbf67a11c05 RCX: 00007fbf6798ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe89428c00
RBP: 00007ffe89428c00 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe89429c90
R13: 00007fbf67a11c05 R14: 0000000000032df7 R15: 00007ffe89429cd0
 </TASK>
