INFO: task syz-executor:8059 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:21256 pid:8059  tgid:8059  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb80
 __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+0xe9/0x130
 do_syscall_64+0x2bd/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe0cbd8ff57
RSP: 002b:00007ffe056ea8d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fe0cbe11c2d RCX: 00007fe0cbd8ff57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe056ea990
RBP: 00007ffe056ea990 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe056eba20
R13: 00007fe0cbe11c2d R14: 0000000000022f60 R15: 00007ffe056eba60
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e33d320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
1 lock held by klogd/5282:
 #0: ffff88804b03a018 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
2 locks held by getty/5671:
 #0: ffff888106c6f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900028382f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by udevd/5850:
1 lock held by syz-executor/8059:
 #0: ffff888033cb40e0 (&type->s_umount_key#124){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.3.850/9623:
 #0: ffff888033cb40e0 (&type->s_umount_key#124){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
2 locks held by udevd/11172:
6 locks held by syz.4.1619/12496:

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

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+0xf60/0xfa0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 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: 12524 Comm: syz.4.1619 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:match_held_lock+0x2/0xc0
Code: 41 5f e9 c1 dc 02 00 cc e8 fb f8 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 56 <53> bb 01 00 00 00 48 39 77 10 74 6a 81 7f 20 00 00 20 00 72 5f 48
RSP: 0018:ffffc900037b6e10 EFLAGS: 00000083
RAX: 0000000000000002 RBX: ffff888105686258 RCX: 2d035189180fe700
RDX: ffffc900249be000 RSI: ffffffff8e33d320 RDI: ffff888105686258
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff82310f2a
R10: dffffc0000000000 R11: ffffed100768e7d2 R12: 0000000000000246
R13: ffff888105685700 R14: ffffffff8e33d320 R15: 0000000000000001
FS:  00007feb7c4596c0(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557c6e5d06f0 CR3: 000000004315e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_is_held_type+0xa8/0x190
 page_ext_lookup+0xe7/0x180
 __page_table_check_zero+0x18f/0x530
 post_alloc_hook+0x253/0x2a0
 get_page_from_freelist+0x2365/0x2440
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 alloc_pages_noprof+0xa9/0x190
 folio_alloc_noprof+0x1e/0x30
 filemap_alloc_folio_noprof+0xdf/0x470
 page_cache_ra_unbounded+0x35d/0x9a0
 do_sync_mmap_readahead+0x25e/0x7a0
 filemap_fault+0x6b9/0x12b0
 __do_fault+0x138/0x390
 __handle_mm_fault+0x35e3/0x5400
 handle_mm_fault+0x40a/0x8e0
 __get_user_pages+0x165c/0x2a00
 populate_vma_page_range+0x29f/0x3a0
 __mm_populate+0x24c/0x380
 vm_mmap_pgoff+0x387/0x4d0
 ksys_mmap_pgoff+0x51f/0x760
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb7b58ec29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007feb7c459038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007feb7b7d6090 RCX: 00007feb7b58ec29
RDX: 00000000027ffff7 RSI: 0000000000600000 RDI: 0000200000000000
RBP: 00007feb7b611e41 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000004012011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007feb7b7d6128 R14: 00007feb7b7d6090 R15: 00007ffd761b2a78
 </TASK>
