INFO: task udevd:25648 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:21432 pid:25648 tgid:25648 ppid:5272   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x6d8/0xbc0
 do_read_cache_folio+0x1ad/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x9a/0x7a0
 bdev_disk_changed+0x817/0x1770
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x785/0x14e0
 vfs_open+0x3b/0x340
 path_openat+0x2e08/0x3860
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2b8c5169a4
RSP: 002b:00007ffecf329450 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005577b4cc9780 RCX: 00007f2b8c5169a4
RDX: 00000000000a0800 RSI: 00005577b4cbb900 RDI: 00000000ffffff9c
RBP: 00005577b4cbb900 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005577b4cbaaa0 R14: 0000000000000001 R15: 00005577b4ca9910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5649:
 #0: ffff8881149280a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000346b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
1 lock held by udevd/25648:
 #0: ffff88810b4fd350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
3 locks held by syz.2.17006/4963:
 #0: ffffffff8fdd46a8 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x4f7/0x730
 #1: ffffffff8fde2fc0 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0xe5/0xa00
 #2: ffffffff8e962fe8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd3/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 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: 5831 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:preempt_count_add+0x4d/0x190
Code: 84 c0 0f 85 ea 00 00 00 83 3d 6e 01 b8 18 00 75 07 65 8b 05 b5 9d ac 11 65 01 3d ae 9d ac 11 48 c7 c0 e0 f3 4b 9a 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 e5 00 00 00 83 3d 3f 01 b8 18 00 75 11
RSP: 0018:ffffc90000a08cd8 EFLAGS: 00000802
RAX: 1ffffffff3497e7c RBX: ffff8881a3af32a8 RCX: ffffffff9a4bf303
RDX: 0000000000010000 RSI: ffffffff8c289cc0 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff903371f7 R09: 1ffffffff2066e3e
R10: dffffc0000000000 R11: ffffffff89bf5ec0 R12: ffff8881a3af3300
R13: ffff8881a3af3000 R14: dffffc0000000000 R15: dffffc0000000000
FS:  0000555576e31500(0000) GS:ffff8882a9217000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffacf1eb4b8 CR3: 0000000020f3c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 _raw_spin_lock+0x12/0x40
 advance_sched+0xc4/0xc90
 __hrtimer_run_queues+0x3c0/0xa20
 hrtimer_interrupt+0x44b/0x950
 __sysvec_apic_timer_interrupt+0x102/0x430
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_is_held_type+0x106/0x150
Code: 19 00 00 b8 ff ff ff ff 65 0f c1 05 74 6d 88 07 83 f8 01 75 25 9c 58 a9 00 02 00 00 75 39 41 f7 c4 00 02 00 00 74 01 fb 89 d8 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 90 0f 0b 90 48 c7
RSP: 0018:ffffc90004ab7968 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8e24d3ec RDI: ffffffff8c289ce0
RBP: 00000000ffffffff R08: ffffffff903371f7 R09: 1ffffffff2066e3e
R10: dffffc0000000000 R11: fffffbfff2066e3f R12: 0000000000000246
R13: ffff888117b0bb00 R14: ffffffff8e95cda0 R15: ffff8882a9217000
 __schedule+0x259/0x5680
 schedule+0x164/0x360
 do_nanosleep+0x1c2/0x620
 hrtimer_nanosleep+0x18f/0x3a0
 __se_sys_clock_nanosleep+0x35b/0x3b0
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5232b5d04e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffcbd2de568 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000555576e31500 RCX: 00007f5232b5d04e
RDX: 00007ffcbd2de5c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffcbd2de62c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001388
R13: 00000000000927c0 R14: 00000000001beff8 R15: 00007ffcbd2de680
 </TASK>
