INFO: task syz-executor:6992 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:17608 pid:6992  tgid:6992  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: 0033:0x7fc11358fed7
RSP: 002b:00007fff93c620a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fc113611c05 RCX: 00007fc11358fed7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff93c62160
RBP: 00007fff93c62160 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff93c631f0
R13: 00007fc113611c05 R14: 000000000002b4a4 R15: 00007fff93c63230
 </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
5 locks held by kworker/u10:5/1089:
2 locks held by kworker/u10:6/1090:
 #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 getty/5677:
 #0: ffff8880202b70a0 (&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
1 lock held by syz-executor/6992:
 #0: ffff88803f2320e0 (&type->s_umount_key#76){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
3 locks held by kworker/1:7/9978:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900028dfbc0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888108b5f240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x26b/0x3180
1 lock held by syz.7.1478/11824:
 #0: ffff88803f2320e0 (&type->s_umount_key#76){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
2 locks held by syz.2.1830/13260:
2 locks held by dhcpcd/13283:
 #0: ffff8881090ac258 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xcd0
 #1: ffffffff8e13f9b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730

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

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: 11754 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:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 d2 d7 8e 03 66
RSP: 0018:ffffc900001e0e50 EFLAGS: 00000046
RAX: 0000000000094038 RBX: ffff888136623900 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000094038 RDI: 0000000000000838
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81ae04ee
R10: 0000000000000003 R11: ffffffff81703490 R12: 000000000fffde72
R13: dffffc0000000000 R14: 0000000000094038 R15: 0000000000000020
FS:  0000555579010500(0000) GS:ffff8881a3c15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6f6e6fbbd0 CR3: 000000011b36c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1cf/0x360
 hrtimer_interrupt+0x620/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:vprintk_emit+0x58f/0x7a0
Code: 85 32 01 00 00 e8 a1 87 1f 00 41 89 df 4d 85 f6 48 8b 1c 24 75 07 e8 90 87 1f 00 eb 06 e8 89 87 1f 00 fb 48 c7 c7 c0 e1 12 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 b9 35
RSP: 0018:ffffc90006677980 EFLAGS: 00000293
RAX: ffffffff81a02757 RBX: ffffffff81a02614 RCX: ffff88810d95d640
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e12e1c0
RBP: ffffc90006677a90 R08: ffffffff8fa3a037 R09: 1ffffffff1f47406
R10: dffffc0000000000 R11: fffffbfff1f47407 R12: dffffc0000000000
R13: 1ffff92000ccef34 R14: 0000000000000200 R15: 0000000000000047
 _printk+0xcf/0x120
 xfs_printk_level+0x18b/0x280
 xfs_fs_put_super+0x55/0x160
 generic_shutdown_super+0x135/0x2c0
 kill_block_super+0x44/0x90
 xfs_kill_sb+0x15/0x50
 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: 0033:0x7f0474f8fed7
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:00007ffc850757e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f0475011c05 RCX: 00007f0474f8fed7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc850758a0
RBP: 00007ffc850758a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc85076930
R13: 00007f0475011c05 R14: 000000000004f025 R15: 00007ffc85076970
 </TASK>
