[  957.429435][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[  957.429840][    C3] CPU: 3 PID: 9954 Comm: perl Not tainted 6.10.0-rc5-virtme #1
[  957.430096][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  957.430478][    C3] Call Trace:
[  957.430619][    C3]  <IRQ>
[  957.430709][    C3]  dump_stack_lvl+0x82/0xd0
[  957.430898][    C3]  __report_bad_irq+0x5f/0x180
[  957.431069][    C3]  note_interrupt+0x6b3/0x860
[  957.431256][    C3]  handle_irq_event+0x16d/0x1c0
[  957.431434][    C3]  handle_edge_irq+0x1fa/0xb60
[  957.431606][    C3]  __common_interrupt+0x82/0x170
[  957.431784][    C3]  common_interrupt+0x7e/0x90
[  957.431967][    C3]  </IRQ>
[  957.432061][    C3]  <TASK>
[  957.432154][    C3]  asm_common_interrupt+0x26/0x40
[  957.432334][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[  957.432546][    C3] Code: 10 e8 41 9f 91 fd 48 89 ef e8 b9 0f 92 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d f5 fc 65 4e <74> 0e 5b 5d c3 cc cc cc cc e8 0f 81 b5 fd eb dc 0f 1f 44 00 00 5b
[  957.433112][    C3] RSP: 0018:ffffc9000163fab8 EFLAGS: 00000286
[  957.433326][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff6970d4c
[  957.433599][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb19dcb61
[  957.433861][    C3] RBP: ffffffffb54480a0 R08: 0000000000000001 R09: fffffbfff696bea8
[  957.434116][    C3] R10: ffffffffb4b5f547 R11: 0000000000000000 R12: ffffffffb54481a8
[  957.434376][    C3] R13: ffff888006305800 R14: ffffffffb54480a0 R15: 0000000000000286
[  957.434639][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[  957.434850][    C3]  uart_write+0x13e/0x320
[  957.434988][    C3]  process_output_block+0x13e/0x790
[  957.435173][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[  957.435379][    C3]  n_tty_write+0x412/0x7a0
[  957.435548][    C3]  ? __pfx_n_tty_write+0x10/0x10
[  957.435719][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[  957.435893][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[  957.436060][    C3]  ? iterate_tty_write+0x95/0x540
[  957.436221][    C3]  ? lock_acquire+0x32/0xc0
[  957.436386][    C3]  ? iterate_tty_write+0x95/0x540
[  957.436556][    C3]  iterate_tty_write+0x228/0x540
[  957.436732][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[  957.436900][    C3]  file_tty_write.constprop.0+0x1db/0x370
[  957.437071][    C3]  vfs_write+0xa18/0x10b0
[  957.437205][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  957.437383][    C3]  ? __pfx_vfs_write+0x10/0x10
[  957.437547][    C3]  ? clockevents_program_event+0xf6/0x300
[  957.437723][    C3]  ? __fget_light+0x53/0x1e0
[  957.437892][    C3]  ? clockevents_program_event+0x1ea/0x300
[  957.438113][    C3]  ksys_write+0xf5/0x1e0
[  957.438248][    C3]  ? __pfx_ksys_write+0x10/0x10
[  957.438421][    C3]  do_syscall_64+0xc1/0x1d0
[  957.438588][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  957.438802][    C3] RIP: 0033:0x7f5e3837a957
[  957.438976][    C3] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[  957.439561][    C3] RSP: 002b:00007ffca6de4a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  957.439818][    C3] RAX: ffffffffffffffda RBX: 000055a4a9e2d310 RCX: 00007f5e3837a957
[  957.440066][    C3] RDX: 0000000000000001 RSI: 000055a4a9e2d310 RDI: 0000000000000001
[  957.440303][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  957.440539][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055a4a9e195c0
[  957.440776][    C3] R13: 000055a4a9dfa2a0 R14: 0000000000000001 R15: 000055a4a9e195c0
[  957.441036][    C3]  </TASK>
[  957.441158][    C3] handlers:
[  957.441289][    C3] [<ffffffffb02f8a60>] serial8250_interrupt
[  957.441679][    C3] Disabling IRQ #4