INFO: task udevd:10263 blocked 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:22120 pid:10263 tgid:10263 ppid:5278   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 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+0x92/0xef0
 bdev_disk_changed+0x765/0x14c0
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x470/0x610
 do_dentry_open+0x7ce/0x1420
 vfs_open+0x3b/0x340
 path_openat+0x3486/0x3e20
 do_filp_open+0x22d/0x490
 do_sys_openat2+0x12f/0x220
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f65029169a4
RSP: 002b:00007ffd899eb7b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055ca42e92780 RCX: 00007f65029169a4
RDX: 00000000000a0800 RSI: 000055ca42e732c0 RDI: 00000000ffffff9c
RBP: 000055ca42e732c0 R08: 0000000000000001 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055ca42e96750 R14: 0000000000000001 R15: 000055ca42e72910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e35a360 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5656:
 #0: ffff8881144fc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
1 lock held by udevd/10263:
 #0: ffff88816afd8358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
1 lock held by syz.4.7860/26685:
 #0: ffff88816afd8358 (&disk->open_mutex){+.+.}-{4:4}, at: sync_bdevs+0x27e/0x470
6 locks held by syz.9.9188/29899:
 #0: ffffffff8f818d70 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40
 #1: ffff88816a2500e8 (&dev->mutex){....}-{4:4}, at: devlink_get_from_attrs_lock+0x246/0x3b0
 #2: ffff88816a255250 (&devlink->lock_key#21){+.+.}-{4:4}, at: devlink_get_from_attrs_lock+0x255/0x3b0
 #3: ffffffff8f7aad88 (rtnl_mutex){+.+.}-{4:4}, at: nsim_destroy+0xed/0x680
 #4: ffff88811c42cd38 (&dev_instance_lock_key#24){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0x583/0x2370
 #5: ffffffff8e360c78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

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+0xf90/0xfe0
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 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: 0 Comm: swapper/1 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:kvm_sched_clock_read+0xc/0x20
Code: 00 65 c6 05 5f b5 56 07 00 eb 9a cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 3d 54 f5 56 07 <e8> 4f 00 00 00 48 2b 05 10 c8 5e 02 e9 13 e6 02 00 cc cc cc 90 90
RSP: 0018:ffffc90000197aa0 EFLAGS: 00000087
RAX: ffffffff816964ab RBX: ffff8881604f8014 RCX: ffff8881604f8000
RDX: 0000000000000000 RSI: ffffffff8dd3bb1a RDI: ffffffff92d62040
RBP: ffffc90000197b90 R08: ffffffff819d5fc3 R09: ffff88823c624588
R10: dffffc0000000000 R11: ffffed102c09f001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc90000197b20 R15: 1ffff92000032f60
FS:  0000000000000000(0000) GS:ffff8882a9921000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1d9b1e8400 CR3: 0000000173560000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 sched_clock+0x17/0x60
 sched_clock_cpu+0x74/0x440
 psi_task_switch+0x5b/0x880
 __schedule+0x24ff/0x4fb0
 schedule_idle+0x51/0x90
 do_idle+0x499/0x500
 cpu_startup_entry+0x43/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
