INFO: task udevd:31449 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:26424 pid:31449 tgid:31449 ppid:5046   task_flags:0x400140 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x836/0xbc0
 do_read_cache_folio+0x1ac/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x9a/0x7a0
 bdev_disk_changed+0x851/0x17a0
 blkdev_get_whole+0x372/0x510
 bdev_open+0x324/0xd70
 blkdev_open+0x461/0x600
 do_dentry_open+0x816/0x1380
 vfs_open+0x3b/0x340
 path_openat+0x2e44/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa430b169a4
RSP: 002b:00007ffe77a1e040 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055d190f47de0 RCX: 00007fa430b169a4
RDX: 00000000000a0800 RSI: 000055d190f38ad0 RDI: 00000000ffffff9c
RBP: 000055d190f38ad0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055d190f43800 R14: 0000000000000001 R15: 000055d190f2f910
 </TASK>

Showing all locks held in the system:
1 lock held by pool_workqueue_/3:
 #0: ffffffff8eb5ff68 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
1 lock held by khungtaskd/34:
 #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5427:
 #0: ffff8881781790a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034762e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
1 lock held by udevd/31449:
 #0: ffff88816d4ac350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
1 lock held by syz.0.12761/15391:
1 lock held by syz.1.12762/15392:
 #0: ffffffff8eb5ff68 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

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/0x380
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 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: 15391 Comm: syz.0.12761 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:__sanitizer_cov_trace_const_cmp4+0x8/0x90
Code: 89 44 11 20 c3 cc cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 15 28 99 a6 11 65 8b 0d 49 99 a6 11 81 e1 00 01 ff 00 74
RSP: 0018:ffffc9000357f7c0 EFLAGS: 00000246
RAX: ffffffff81b3eb49 RBX: 0009ee6b98000000 RCX: ffff8880300e8000
RDX: 0000000000000002 RSI: 0000000000000017 RDI: 0000000000000040
RBP: ffffffffffffffff R08: ffff8880300e8007 R09: 1ffff1100601d000
R10: dffffc0000000000 R11: ffffffff8176e060 R12: dffffc0000000000
R13: 000000000002f222 R14: 0000000000000017 R15: 0000000000800000
FS:  00007fa29e19a6c0(0000) GS:ffff88818d946000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b25e162008 CR3: 00000001105b0000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ktime_get_mono_fast_ns+0x169/0x2f0
 ktime_get_tai_fast_ns+0xe/0x20
 bpf_prog_ad5545de6f9ec185+0x23/0x29
 bpf_test_run+0x313/0x830
 bpf_prog_test_run_xdp+0x7ad/0x11d0
 bpf_prog_test_run+0x2c5/0x340
 __sys_bpf+0xa22/0xd90
 __x64_sys_bpf+0xba/0xd0
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa29d39e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa29e19a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fa29d625fa0 RCX: 00007fa29d39e0d9
RDX: 0000000000000050 RSI: 0000200000000600 RDI: 000000000000000a
RBP: 00007fa29d435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa29d626038 R14: 00007fa29d625fa0 R15: 00007ffd46aa58e8
 </TASK>
