INFO: task udevd:22752 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:26344 pid:22752 tgid:22752 ppid:5061   task_flags:0x400040 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x17dd/0x5830
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x85e/0xc40
 do_read_cache_folio+0x1ac/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x9a/0x7a0
 bdev_disk_changed+0x851/0x1680
 blkdev_get_whole+0x372/0x510
 bdev_open+0x324/0xd70
 blkdev_open+0x461/0x600
 do_dentry_open+0x80e/0x1360
 vfs_open_consume+0x4a/0x350
 path_openat+0x16fc/0x20f0
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f97065169a4
RSP: 002b:00007ffc950d0190 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005646fbe52780 RCX: 00007f97065169a4
RDX: 00000000000a0800 RSI: 00005646fbe40410 RDI: 00000000ffffff9c
RBP: 00005646fbe40410 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005646fbe43aa0 R14: 00007ffc950d023c R15: 00005646fbe32910
 </TASK>

Showing all locks held in the system:
locks held by ksoftirqd/0/15: 1, last CPU#0:
 #0: ffff888120c28618 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x466/0xa10
locks held by khungtaskd/35: 1, last CPU#1:
 #0: ffffffff8ff5a320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
locks held by getty/5440: 2, on CPU#0:
 #0: ffff8881158db0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000347b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
locks held by kworker/u8:5/14867: 5, last CPU#1:
 #0: ffff8881b8e9e148 ((wq_completion)krds_cp_wq#1/0){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000fe07c40 ((work_completion)(&(&cp->cp_conn_w)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff8881a3061280 (&tc->t_conn_path_lock){+.+.}-{4:4}, at: rds_tcp_conn_path_connect+0x1cc/0x920
 #3: ffff8881ce11ac60 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: __inet6_bind+0x301/0xf30
 #4: ffffffff8ff5a320 (rcu_read_lock){....}-{1:3}, at: __inet6_bind+0x49b/0xf30
locks held by udevd/22752: 1, on CPU#1:
 #0: ffff88816d057350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
locks held by syz.1.11829/5264: 1, on CPU#1:
 #0: ffff8881bd7e7c60 (&pipe->mutex){+.+.}-{4:4}, at: pipe_release+0x48/0x330
locks held by syz.1.11829/5266: 1, on CPU#1:
 #0: ffff8881bd7e7c60 (&pipe->mutex){+.+.}-{4:4}, at: splice_file_to_pipe+0x3e/0x720
locks held by syz.1.11829/5273: 1, on CPU#0:
 #0: ffff8881bd7e7c60 (&pipe->mutex){+.+.}-{4:4}, at: anon_pipe_write+0x28f/0x1a90

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

NMI backtrace for cpu 1
CPU: 1 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+0x17d/0x390
 sys_info+0x135/0x170
 watchdog+0x1073/0x10f0
 kthread+0x38b/0x480
 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: 15 Comm: ksoftirqd/0 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:_raw_spin_unlock_irqrestore+0x47/0x80
Code: f7 e8 4d 66 9f f5 f7 c3 00 02 00 00 74 05 e8 50 07 cc f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 64 5a 90 f5 65 48 8b 05 ac a1 ba 08 48 85 c0 74 18 5b 41 5e c3
RSP: 0018:ffffc90000147cc0 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000287 RCX: 8000000000000101
RDX: 0000000000000000 RSI: ffffffff8e6a2015 RDI: 0000000000000001
RBP: 8000000000000100 R08: ffffffff919d71bf R09: 1ffffffff233ae37
R10: dffffc0000000000 R11: fffffbfff233ae38 R12: 0000000000000008
R13: 0000000000000009 R14: ffff888120c28600 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88818c020000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f812258a900 CR3: 000000000fd48000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 handle_softirqs+0x265/0x8d0
 run_ksoftirqd+0x36/0x60
 smpboot_thread_fn+0x5f8/0xb30
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
