INFO: task udevd:11422 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:21928 pid:11422 tgid:11422 ppid:5281   task_flags:0x400040 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 do_read_cache_folio+0x1aa/0x590
 read_part_sector+0xb6/0x2b0
 adfspart_check_POWERTEC+0x8c/0xf30
 bdev_disk_changed+0x75f/0x14b0
 blkdev_get_whole+0x380/0x510
 bdev_open+0x31e/0xd30
 blkdev_open+0x3a8/0x510
 do_dentry_open+0xdf3/0x1970
 vfs_open+0x3b/0x340
 path_openat+0x2ee5/0x3830
 do_filp_open+0x1fa/0x410
 do_sys_openat2+0x121/0x1c0
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe9317169a4
RSP: 002b:00007ffde4dad330 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000564b0ddb6a00 RCX: 00007fe9317169a4
RDX: 00000000000a0800 RSI: 0000564b0dd98310 RDI: 00000000ffffff9c
RBP: 0000564b0dd98310 R08: 0000000000000001 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 0000564b0dda8a50 R14: 00007ffde4dad3dc R15: 0000564b0dd97910
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e13f160 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5659:
 #0: ffff8881069b10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000263f2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by udevd/11422:
 #0: ffff88810729e358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77 #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+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xfee/0x1030
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 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: 31273 Comm: syz.0.6529 Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77 #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:__lock_acquire+0x80f/0xd20
Code: 00 00 00 48 c7 c7 70 05 01 8e 48 89 de e8 29 6f 57 03 eb c2 44 89 e0 25 ff 1f 00 00 41 c1 ec 03 41 81 e4 00 60 00 00 41 09 c4 <4c> 89 f9 48 c1 e9 20 89 ca c1 c2 04 41 29 cc 44 31 e2 44 01 f9 41
RSP: 0018:ffffc900001e0cd8 EFLAGS: 00000002
RAX: 00000000000000b5 RBX: 0000000000000000 RCX: ffffffff9348e001
RDX: 0000000000000008 RSI: ffff8880431ba7b0 RDI: ffff8880431b9cc0
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8187bcaa
R10: 0000000000000000 R11: fffff5200003c1a0 R12: 00000000000000b5
R13: ffff8880431ba7b0 R14: ffff8880431ba7b0 R15: ffffffffffffffff
FS:  00005555794b4500(0000) GS:ffff8881a3c26000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf4f772b0 CR3: 000000003d712000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 reacquire_held_locks+0x127/0x1d0
 lock_release+0x1b4/0x3e0
 __lock_task_sighand+0x2af/0x2e0
 group_send_sig_info+0x1e1/0x260
 do_bpf_send_signal+0xa9/0x1e0
 irq_work_single+0xe1/0x240
 irq_work_run+0x155/0x2f0
 __sysvec_irq_work+0xa8/0x3d0
 sysvec_irq_work+0x9e/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+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 3a 69 2e f6 48 89 df e8 92 00 2f f6 e8 4d d2 57 f6 fb bf 01 00 00 00 <e8> 62 fd 20 f6 65 8b 05 0b ba 2f 07 85 c0 74 07 5b c3 cc cc cc cc
RSP: 0018:ffffc900074bfc80 EFLAGS: 00000282
RAX: bd5058e5c6b97300 RBX: ffff888108101300 RCX: bd5058e5c6b97300
RDX: 0000000000000000 RSI: ffffffff8d996033 RDI: 0000000000000001
RBP: 0000000000000021 R08: ffffffff8fa1d5f7 R09: 1ffffffff1f43abe
R10: dffffc0000000000 R11: fffffbfff1f43abf R12: 1ffff110210202f3
R13: 0000000000000000 R14: 000000001c000004 R15: ffff888108101798
 get_signal+0x11a8/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff6b8e4f830
Code: 10 83 e0 01 83 e2 01 88 15 c2 5e e9 00 88 05 bf 5e e9 00 c3 50 48 8d 35 41 15 1c 00 48 8d 3d 47 15 1c 00 31 c0 e8 30 f7 ff ff <53> 89 fb 48 83 ec 10 64 8b 04 25 94 ff ff ff 85 c0 74 2a 89 fe 31
RSP: 002b:00007ffcf4f77738 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007ff6b91b62d8 RCX: 00007ff6b8f45fa7
RDX: 00007ffcf4f77740 RSI: 00007ffcf4f77870 RDI: 000000000000000b
RBP: 0000000000000003 R08: 00007ff6b91b5fa0 R09: 00007ffcf4f77a57
R10: 0000000000000008 R11: 0000000000000246 R12: 00007ff6b91b624c
R13: 00007ff6b91b6240 R14: 00000000000016c8 R15: 0000000000000003
 </TASK>
GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog
