INFO: task udevd:5615 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:22424 pid:5615  tgid:5615  ppid:5058   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: 0033:0x7f4fe35169a4
RSP: 002b:00007ffed701f890 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055c54706c780 RCX: 00007f4fe35169a4
RDX: 00000000000a0800 RSI: 000055c54706e210 RDI: 00000000ffffff9c
RBP: 000055c54706e210 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055c547063950 R14: 0000000000000001 R15: 000055c54704c910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cd60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5437:
 #0: ffff8881144750a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
1 lock held by udevd/5615:
 #0: ffff88816a1c1350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
6 locks held by syz.0.4645/22278:

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

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+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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 22254 Comm: syz.2.4640 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:psi_task_switch+0x18e/0x880
Code: 00 00 00 00 00 fc ff df 49 8b 45 00 48 01 c3 48 83 c3 10 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 86 00 00 00 f6 43 01 01 <0f> 85 bc 00 00 00 48 89 ef 48 8b 74 24 10 31 d2 b9 10 00 00 00 4c
RSP: 0018:ffffc9000b347620 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffe8fee4656d50 RCX: 0000000080000002
RDX: dffffc0000000000 RSI: ffffffff8e219c6f RDI: ffffffff8c28ade0
RBP: ffff8881616c1000 R08: 0000000000000004 R09: ffff888121024588
R10: dffffc0000000000 R11: ffffed10232d13b1 R12: 0000000000000000
R13: ffffffff8e265790 R14: 1ffffffff1c4caf2 R15: ffff888119689e59
FS:  00007f2aee3f66c0(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3390fff8 CR3: 000000018b930000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __schedule+0x29ae/0x5680
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x30
 _raw_write_unlock_irq+0x45/0x50
 release_task+0x11f7/0x16f0
 do_exit+0x1674/0x22c0
 do_group_exit+0x21b/0x2d0
 get_signal+0x1284/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x480
 do_syscall_64+0x33e/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2af019cdd9
Code: Unable to access opcode bytes at 0x7f2af019cdaf.
RSP: 002b:00007f2aee3f60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f2af0415fa8 RCX: 00007f2af019cdd9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f2af0415fa8
RBP: 00007f2af0415fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2af0416038 R14: 00007ffea973c4a0 R15: 00007ffea973c588
 </TASK>
