INFO: task syz-executor:5853 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:20504 pid:5853  tgid:5853  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: 0033:0x7f9bfe58ff17
RSP: 002b:00007fff6dfb78b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f9bfe611c05 RCX: 00007f9bfe58ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff6dfb7970
RBP: 00007fff6dfb7970 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff6dfb8a00
R13: 00007f9bfe611c05 R14: 0000000000013b7b R15: 00007fff6dfb8a40
 </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
4 locks held by klogd/5287:
 #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: ffff88810d750a28 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0x67/0x12b0
 #3: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
2 locks held by getty/5677:
 #0: ffff8880224e20a0 (&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/5853:
 #0: ffff8881123440e0 (&type->s_umount_key#78){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by udevd/5981:
 #0: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
1 lock held by syz.6.371/7433:
 #0: ffff8881123440e0 (&type->s_umount_key#78){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.552/8019:
 #0: ffff8881123440e0 (&type->s_umount_key#78){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.679/8322:
 #0: ffff8881123440e0 (&type->s_umount_key#78){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
2 locks held by syz.1.1265/10645:
3 locks held by syz.0.1266/10651:

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

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: 10645 Comm: syz.1.1265 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:lru_gen_add_folio+0x474/0xc70
Code: ba ff ff ff ff 44 89 e1 e8 79 ee ff ff 31 c0 4c 8b 74 24 30 41 f7 c6 00 00 02 00 0f 94 c0 48 89 44 24 18 49 81 c7 f8 00 00 00 <4c> 89 7c 24 20 41 83 e5 07 48 bf 00 00 00 00 00 00 00 03 49 21 fe
RSP: 0018:ffffc90007267560 EFLAGS: 00000096
RAX: 0000000000000000 RBX: ffffea0004b926c0 RCX: cb77f83ca3dca800
RDX: 0000000000000001 RSI: ffffffff8b9514c0 RDI: ffffffff8be33880
RBP: ffffc90007267630 R08: ffffffff8fa39037 R09: 1ffffffff1f47206
R10: dffffc0000000000 R11: fffffbfff1f47207 R12: 0000000000000002
R13: 000000000000000a R14: 057ff0000002001c R15: ffff8881000f09c0
FS:  00007ffa139ed6c0(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffa08bff000 CR3: 000000012a1cc000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lru_add+0x6ad/0xd80
 folio_batch_move_lru+0x21e/0x3a0
 __folio_batch_add_and_move+0x5ad/0xd20
 shmem_alloc_and_add_folio+0xcb3/0xf60
 shmem_get_folio_gfp+0x59d/0x1660
 shmem_write_begin+0xf7/0x2b0
 generic_perform_write+0x2c5/0x900
 shmem_file_write_iter+0xf8/0x120
 vfs_write+0x5c9/0xb30
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffa12b8d69f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007ffa139ecd40 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000400000 RCX: 00007ffa12b8d69f
RDX: 0000000000400000 RSI: 00007ffa08800000 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000001056
R10: 0000000000000068 R11: 0000000000000293 R12: 0000000000000007
R13: 00007ffa139ecdec R14: 00007ffa139ecdf0 R15: 00007ffa08800000
 </TASK>
