[  938.312709][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  938.313112][    C0] CPU: 0 UID: 0 PID: 4559 Comm: perl Not tainted 6.12.0-virtme #1
[  938.313395][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  938.313636][    C0] Call Trace:
[  938.313778][    C0]  <IRQ>
[  938.313877][    C0]  dump_stack_lvl+0x82/0xd0
[  938.314073][    C0]  __report_bad_irq+0x5f/0x180
[  938.314257][    C0]  note_interrupt+0x66d/0x7f0
[  938.314441][    C0]  handle_irq_event+0x16d/0x1c0
[  938.314625][    C0]  handle_edge_irq+0x1fa/0xb60
[  938.314810][    C0]  __common_interrupt+0x82/0x170
[  938.314991][    C0]  common_interrupt+0x81/0xa0
[  938.315197][    C0]  </IRQ>
[  938.315307][    C0]  <TASK>
[  938.315400][    C0]  asm_common_interrupt+0x26/0x40
[  938.315581][    C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[  938.315816][    C0] Code: 10 e8 11 9a 83 fd 48 89 ef e8 c9 0e 84 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 e5 93 56 6b <74> 0e 5b 5d c3 cc cc cc cc e8 ff f6 a8 fd eb dc 0f 1f 44 00 00 5b
[  938.316473][    C0] RSP: 0018:ffffc900012d7aa0 EFLAGS: 00000286
[  938.316705][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2fc40da
[  938.316984][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff94ad3371
[  938.317252][    C0] RBP: ffffffff986e78a0 R08: 0000000000000001 R09: fffffbfff2fbf7df
[  938.317518][    C0] R10: ffffffff97dfbeff R11: ffff88800fc90040 R12: 00000000ffffffff
[  938.317791][    C0] R13: 0000000000000001 R14: ffffffff986e79a8 R15: 00000000ffffffff
[  938.318094][    C0]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[  938.318328][    C0]  uart_write+0x220/0x920
[  938.318473][    C0]  process_output_block+0x13e/0x790
[  938.318653][    C0]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[  938.318896][    C0]  n_tty_write+0x40c/0x790
[  938.319082][    C0]  ? __pfx_n_tty_write+0x10/0x10
[  938.319259][    C0]  ? trace_lock_acquire+0x14d/0x1f0
[  938.319438][    C0]  ? __pfx_woken_wake_function+0x10/0x10
[  938.319627][    C0]  ? iterate_tty_write+0x8f/0x540
[  938.319809][    C0]  ? lock_acquire+0x32/0xc0
[  938.319995][    C0]  ? iterate_tty_write+0x8f/0x540
[  938.320178][    C0]  iterate_tty_write+0x222/0x540
[  938.320358][    C0]  ? tty_ldisc_ref_wait+0x28/0x80
[  938.320555][    C0]  file_tty_write.constprop.0+0x1cf/0x360
[  938.320737][    C0]  vfs_write+0xa81/0x11e0
[  938.320873][    C0]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  938.321073][    C0]  ? __pfx_vfs_write+0x10/0x10
[  938.321259][    C0]  ? clockevents_program_event+0xf6/0x300
[  938.321448][    C0]  ? clockevents_program_event+0x1ea/0x300
[  938.321686][    C0]  ksys_write+0xf8/0x1d0
[  938.321821][    C0]  ? __pfx_ksys_write+0x10/0x10
[  938.322015][    C0]  do_syscall_64+0xc1/0x1d0
[  938.322209][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  938.322427][    C0] RIP: 0033:0x7f0c716d4957
[  938.322620][    C0] 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
[  938.323238][    C0] RSP: 002b:00007ffd3d118c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  938.323512][    C0] RAX: ffffffffffffffda RBX: 000055bd2d2cb3f0 RCX: 00007f0c716d4957
[  938.323776][    C0] RDX: 0000000000000001 RSI: 000055bd2d2cb3f0 RDI: 0000000000000001
[  938.324044][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  938.324308][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000055bd2d2b65e0
[  938.324569][    C0] R13: 000055bd2d2972a0 R14: 0000000000000001 R15: 000055bd2d2b65e0
[  938.324846][    C0]  </TASK>
[  938.324991][    C0] handlers:
[  938.325128][    C0] [<ffffffff9339e980>] serial8250_interrupt
[  938.325563][    C0] Disabling IRQ #51