INFO: task udevd:28650 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:22344 pid:28650 tgid:28650 ppid:5050   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: 0033:0x7f74295169a4
RSP: 002b:00007ffc819d2eb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055c9e8f65780 RCX: 00007f74295169a4
RDX: 00000000000a0800 RSI: 000055c9e8f5aa50 RDI: 00000000ffffff9c
RBP: 000055c9e8f5aa50 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055c9e8f58120 R14: 0000000000000001 R15: 000055c9e8f45910
 </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
1 lock held by klogd/5039:
2 locks held by getty/5429:
 #0: ffff88811235d0a0 (&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/28650:
 #0: ffff88818b056350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30

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

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: 5039 Comm: klogd 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_switch+0x7/0x130
Code: 20 e9 cd 72 e5 09 cc 66 66 66 2e 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 06 <48> 8b 4e 08 48 83 c1 f8 48 c1 c1 3d 48 83 f9 02 7f 1e 48 85 c9 74
RSP: 0018:ffffc90000007b58 EFLAGS: 00000046
RAX: 0000000000000002 RBX: ffff888121023e40 RCX: ffff8881740e4a00
RDX: 0000000000000100 RSI: ffffffff8e98da60 RDI: 0000000000000003
RBP: ffffc90000007c18 R08: ffffffff9030a9f7 R09: 1ffffffff206153e
R10: dffffc0000000000 R11: fffffbfff206153f R12: 1ffff110242047d0
R13: 0000000000000003 R14: ffff888121023e80 R15: 000000b74f591bd5
FS:  00007f283e769500(0000) GS:ffff88818dc90000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b0b1308000 CR3: 000000011229f000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 clockevents_program_event+0xd1/0x630
 __hrtimer_rearm_deferred+0x270/0x450
 irqentry_exit+0x6a0/0x730
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 1a f0 f6 f5 48 89 df e8 22 65 f7 f5 e8 2d fb 22 f6 fb bf 01 00 00 00 <e8> b2 e7 e8 f5 65 8b 05 7b 10 8e 07 85 c0 74 07 5b c3 cc cc cc cc
RSP: 0018:ffffc90000007d70 EFLAGS: 00000206
RAX: 000000000005bf0a RBX: ffff888121026100 RCX: 0000000000000102
RDX: 0000000000000000 RSI: ffffffff8dfa5bcd RDI: 0000000000000001
RBP: ffffc90000007ef8 R08: ffffffff9030a9f7 R09: 1ffffffff206153e
R10: dffffc0000000000 R11: fffffbfff206153f R12: ffff888121026100
R13: 1ffff92000000fc8 R14: ffff8881169382f8 R15: ffffc90000007e40
 __run_timer_base+0x642/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0x48/0xa0
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 53 bf 01 00 00 00 e8 b3 5c ea f5 e8 be 71 24 f6 fb bf 01 00 00 00 <e8> 13 a3 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 84 73 24 f6 bf 01
RSP: 0018:ffffc9000361f950 EFLAGS: 00000206
RAX: 000000000005bf05 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8dfa5bcd RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9030a9f7 R09: 1ffffffff206153e
R10: dffffc0000000000 R11: fffffbfff206153f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x14f/0x730
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70
Code: 89 fb e8 23 00 00 00 48 8b 3d a4 90 60 0c 48 89 de 5b e9 b3 ea 5f 00 cc cc cc 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 0d 88 40 73 11 65 8b 15 a9 40 73
RSP: 0018:ffffc9000361fa78 EFLAGS: 00000246
RAX: ffffffff8a4d87da RBX: 0000000000000000 RCX: ffff8881740e4a00
RDX: 0000000000000000 RSI: ffff888105acd780 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffff888114edc6a7 R09: 1ffff110229db8d4
R10: dffffc0000000000 R11: ffffed10229db8d5 R12: 1ffff920006c3fbc
R13: dffffc0000000000 R14: ffffc9000361fc00 R15: 0000000000000000
 get_pid+0x52/0x80
 unix_scm_to_skb+0x46/0x3f0
 unix_dgram_sendmsg+0x48b/0x18d0
 __sys_sendto+0x672/0x710
 __x64_sys_sendto+0xde/0x100
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f283e8cb9b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe87354788 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f283e8cb9b5
RDX: 000000000000004c RSI: 000055673e7d0f70 RDI: 0000000000000003
RBP: 000055673e7c9910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f283ea59212 R14: 00007ffe87354888 R15: 0000000000000000
 </TASK>
