INFO: task udevd:29620 blocked in I/O wait for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:26120 pid:29620 tgid:29620 ppid:5051   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: 0033:0x7f7834d169a4
RSP: 002b:00007ffcd286a3a0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000056004f540780 RCX: 00007f7834d169a4
RDX: 00000000000a0800 RSI: 000056004f521510 RDI: 00000000ffffff9c
RBP: 000056004f521510 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000056004f531aa0 R14: 0000000000000001 R15: 000056004f520910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5430:
 #0: ffff88816a9c50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
3 locks held by kworker/u8:4/16915:
 #0: ffff888112700140 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc90022dafc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x116/0x15c0
1 lock held by udevd/29620:
 #0: ffff88810a742350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
3 locks held by kworker/0:8/2626:
 #0: ffff888100069d40 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc900047ffc40 ((crda_timeout).work){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: crda_timeout_work+0x16/0x80
3 locks held by kworker/u9:7/2741:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc90003dafc40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
2 locks held by syz.1.14765/5081:
 #0: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
 #1: ffffffff8eb5ff68 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770
2 locks held by syz.9.14770/5105:
 #0: ffffffff8f778428 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
 #1: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc10/0x1c30
2 locks held by syz.0.14771/5107:
 #0: ffffffff9057c900 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
 #1: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc10/0x1c30
1 lock held by syz.0.14771/5108:
 #0: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc10/0x1c30
2 locks held by syz.0.14771/5109:
 #0: ffffffff90596e68 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
 #1: ffffffff9002d500 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc10/0x1c30

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

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/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: 10283 Comm: kworker/u8:0 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
Workqueue: krds_cp_wq#7/2 rds_connect_worker
RIP: 0010:__kasan_check_byte+0x2c/0x40
Code: 40 d6 41 56 53 48 89 f3 49 89 fe e8 3e 15 00 00 84 c0 75 16 be 01 00 00 00 4c 89 f7 31 d2 48 89 d9 89 c3 e8 f6 04 00 00 89 d8 <5b> 41 5e c3 cc cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc90022e0f6c0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8a767907 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8a767907 RDI: 1ffffffff1d6b38c
RBP: ffffffff8a7678eb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000000 R12: 0000000000000002
R13: ffffffff8eb59c60 R14: ffffffff8eb59c60 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88818d954000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2730487e20 CR3: 0000000114800000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_acquire+0x84/0x350
 __inet6_bind+0x4b7/0xf30
 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>
