INFO: task udevd:5839 blocked in I/O wait for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:22568 pid:5839  tgid:5839  ppid:5064   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+0x2e3b/0x3890
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcfc31719a4
RSP: 002b:00007ffed59cbc50 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055cc6c078890 RCX: 00007fcfc31719a4
RDX: 00000000000a0800 RSI: 000055cc6c05c3f0 RDI: 00000000ffffff9c
RBP: 000055cc6c05c3f0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055cc6c06e120 R14: 0000000000000001 R15: 000055cc6c05b910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e95cc00 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5444:
 #0: ffff88816d6520a0 (&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 syz-executor/5622:
1 lock held by udevd/5839:
 #0: ffff88810a2ec350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
1 lock held by syz.8.4821/17730:
 #0: ffff88810a2ec350 (&disk->open_mutex){+.+.}-{4:4}, at: sync_bdevs+0x276/0x470
5 locks held by syz-executor/18028:
1 lock held by syz.0.5729/20039:
1 lock held by syz.7.5757/20099:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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+0x389/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 20099 Comm: syz.7.5757 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:vm_normal_page+0xbb/0x280
Code: 89 ee e8 68 51 af ff 48 39 eb 0f 87 15 01 00 00 49 bd 00 00 00 00 00 fc ff df 48 c7 c0 e8 70 26 8e 48 c1 e8 03 42 80 3c 28 00 <74> 0c 48 c7 c7 e8 70 26 8e e8 87 3a 1b 00 4c 8b 3d e8 6c 10 0c 48
RSP: 0018:ffffc9000967f5a0 EFLAGS: 00000246
RAX: 1ffffffff1c4ce1d RBX: 0000000000030d88 RCX: ffff88816f253b80
RDX: 0000000000000000 RSI: 000000000023ffff RDI: 0000000000030d88
RBP: 000000000023ffff R08: ffffea0000c361f3 R09: 1ffffd4000186c3e
R10: dffffc0000000000 R11: fffff94000186c3f R12: 000000fffffffe00
R13: dffffc0000000000 R14: 0008000000030d88 R15: 8000000030d88007
FS:  000055558da3c500(0000) GS:ffff8882a92a4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32b21ff6 CR3: 00000001758d0000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __zap_vma_range+0x123b/0x52b0
 unmap_vmas+0x390/0x550
 exit_mmap+0x293/0x9f0
 __mmput+0x118/0x420
 exit_mm+0x1e4/0x2b0
 do_exit+0x6cd/0x2360
 do_group_exit+0x22d/0x2f0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x221a/0x2240
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f25e9b9ce59
Code: Unable to access opcode bytes at 0x7f25e9b9ce2f.
RSP: 002b:00007ffe3ee3e048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f25e9b9ce59
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe3ee3e0ac R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 000000000000040b
R13: 00000000000927c0 R14: 000000000009f29e R15: 00007ffe3ee3e100
 </TASK>
