INFO: task syz-executor:7220 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21832 pid:7220  tgid:7220  ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 __filemap_get_folio+0x139/0xaf0
 truncate_inode_pages_range+0x3ed/0xda0
 evict+0x517/0x9c0
 evict_inodes+0x64c/0x6d0
 generic_shutdown_super+0x9a/0x2c0
 kill_block_super+0x44/0x90
 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: 0033:0x7f8d79f8ff17
RSP: 002b:00007ffefc943748 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f8d7a011c05 RCX: 00007f8d79f8ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffefc943800
RBP: 00007ffefc943800 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffefc944890
R13: 00007f8d7a011c05 R14: 0000000000026ab1 R15: 00007ffefc9448d0
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/u10:0/27:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
1 lock held by udevd/5299:
2 locks held by getty/5680:
 #0: ffff8880283550a0 (&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
1 lock held by syz-executor/7220:
 #0: ffff8881098f80e0 (&type->s_umount_key#70){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz-executor/9492:
 #0: ffff888034c6e0e0 (&type->s_umount_key#70){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.3.1048/10559:
 #0: ffff8881098f80e0 (&type->s_umount_key#70){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.1069/10659:
 #0: ffff8881098f80e0 (&type->s_umount_key#70){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
3 locks held by udevd/10780:
1 lock held by udevd/10782:
 #0: ffff888103411ea8 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2f8/0x440
2 locks held by syz.8.1170/11597:
 #0: ffff888022b7c0e0 (&type->s_umount_key#54/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970
 #1: ffff8881000e0188 (&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_add_one+0x2c2/0x520
4 locks held by syz.6.1174/11606:
2 locks held by syz.7.1177/11624:

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

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: 11625 Comm: dhcpcd-run-hook 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:folio_add_lru+0xdc/0x3d0
Code: 4c 89 e6 48 83 e6 01 31 ff e8 80 25 c5 ff 49 83 e4 01 0f 85 6d 02 00 00 48 89 df be 08 00 00 00 e8 19 91 28 00 43 80 3c 2f 00 <74> 08 48 89 df e8 9a 8e 28 00 4c 8b 23 4c 89 e6 48 83 e6 20 31 ff
RSP: 0000:ffffc90003757bc8 EFLAGS: 00000246
RAX: ffffffff81fa8a01 RBX: ffffea000100aec0 RCX: ffffffff81fa8b07
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea000100aec0
RBP: 1ffffd40002015d9 R08: ffffea000100aec7 R09: 1ffffd40002015d8
R10: dffffc0000000000 R11: fffff940002015d9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffea000100aec8 R15: 1ffffd40002015d8
FS:  00007f07a05f7380(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055764d6e8b88 CR3: 0000000021206000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __handle_mm_fault+0x3a1a/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0xa81/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f07a06fd77b
Code: 93 12 00 48 8d 34 18 48 39 cd 48 89 75 60 0f 95 c1 48 29 da 0f b6 c9 48 83 ca 01 48 c1 e1 02 48 09 d9 48 83 c9 01 48 89 48 08 <48> 89 56 08 4c 8d 40 10 e9 c0 00 00 00 8b 45 08 85 c0 0f 84 9c 00
RSP: 002b:00007ffd2f6dad00 EFLAGS: 00010202
RAX: 000055764d6e7bc0 RBX: 0000000000000fc0 RCX: 0000000000000fc1
RDX: 000000000000b481 RSI: 000055764d6e8b80 RDI: 0000000000000004
RBP: 00007f07a0826aa0 R08: 00007f07a0826eb0 R09: 0000000010000000
R10: 000000000000010a R11: 0000000000000000 R12: 00007f07a0827140
R13: 00000000000000fa R14: 00007f07a0826b00 R15: 0000000000000000
 </TASK>
