INFO: task udevd:5631 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:22488 pid:5631  tgid:5631  ppid:5065   task_flags:0x400140 flags:0x00080802
Call Trace:
 <TASK>
 __schedule+0x1840/0x57a0
 schedule+0x164/0x360
 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+0x82b/0x1780
 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: 0033:0x7f2c071829a4
RSP: 002b:00007ffd5bddc6b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000555f3b7c6e20 RCX: 00007f2c071829a4
RDX: 00000000000a0800 RSI: 0000555f3b7a8800 RDI: 00000000ffffff9c
RBP: 0000555f3b7a8800 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000555f3b79b950 R14: 0000000000000001 R15: 0000555f3b784910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e95c980 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5444:
 #0: ffff8881708e40a0 (&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/0x1380
1 lock held by udevd/5631:
 #0: ffff88816cba5350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
4 locks held by kworker/u8:2/5668:

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

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+0x17a/0x300
 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: 5668 Comm: kworker/u8:2 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
Workqueue: krds_cp_wq#9/3 rds_connect_worker
RIP: 0010:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 e9 00 e0 30 0a cc 89 f6 31 d2 e9 06 80 79 03 66 0f 1f 44 00
RSP: 0018:ffffc9000453f4f0 EFLAGS: 00000046
RAX: 00000000000000df RBX: ffff888121023e40 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000000df RDI: 0000000000000838
RBP: ffffc9000453f5b0 R08: ffffffff81b27aa5 R09: 0000000000080000
R10: 0000000000000000 R11: ffffffff81740690 R12: 00000000000000df
R13: dffffc0000000000 R14: 0000000010002ef9 R15: 0000000000000020
FS:  0000000000000000(0000) GS:ffff88818dcaf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f12543be0e0 CR3: 0000000111852000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x385/0x630
 __hrtimer_rearm_deferred+0x25d/0x440
 irqentry_exit+0x8a3/0x8e0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:in_lock_functions+0x0/0x30
Code: c7 58 e8 3e 96 e8 90 b2 8e 00 e9 61 ff ff ff cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 81 ff 10 c5 a5 8b 0f 93 c0 48 81 ff 5a 04 a6 8b 0f
RSP: 0018:ffffc9000453f708 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 000000000197f601
RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000000
RBP: 00000000ffffff9d R08: ffffffff8a4dd384 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e95c980 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffff8881767b0000
 __local_bh_disable_ip+0x78/0xd0
 _raw_spin_lock_bh+0x1c/0x50
 release_sock+0x2f/0x260
 __inet6_bind+0x386/0xf30
 kernel_bind+0x13e/0x1c0
 rds_tcp_conn_path_connect+0x53b/0x920
 rds_connect_worker+0x1d8/0x290
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
