[  856.605327][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  856.605812][    C0] CPU: 0 UID: 0 PID: 4875 Comm: perl Not tainted 6.12.0-rc7-virtme #1
[  856.606089][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  856.606312][    C0] Call Trace:
[  856.606455][    C0]  <IRQ>
[  856.606558][    C0]  dump_stack_lvl+0x82/0xd0
[  856.606756][    C0]  __report_bad_irq+0x5f/0x180
[  856.606953][    C0]  note_interrupt+0x6b3/0x860
[  856.607127][    C0]  handle_irq_event+0x16d/0x1c0
[  856.607301][    C0]  handle_edge_irq+0x1fa/0xb60
[  856.607479][    C0]  __common_interrupt+0x82/0x170
[  856.607683][    C0]  common_interrupt+0x81/0xa0
[  856.607861][    C0]  </IRQ>
[  856.607954][    C0]  <TASK>
[  856.608041][    C0]  asm_common_interrupt+0x26/0x40
[  856.608226][    C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[  856.608444][    C0] Code: 10 e8 01 bf 85 fd 48 89 ef e8 69 31 86 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 75 08 19 6d <74> 0e 5b 5d c3 cc cc cc cc e8 cf 17 ab fd eb dc 0f 1f 44 00 00 5b
[  856.609030][    C0] RSP: 0018:ffffc90004b87aa0 EFLAGS: 00000286
[  856.609250][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff2c416fc
[  856.609502][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff92eabe61
[  856.609753][    C0] RBP: ffffffff96ad24a0 R08: 0000000000000001 R09: fffffbfff2c3cdcf
[  856.610002][    C0] R10: ffffffff961e6e7f R11: ffff88800e54a300 R12: 00000000ffffffff
[  856.610263][    C0] R13: 0000000000000001 R14: ffffffff96ad25a8 R15: 00000000ffffffff
[  856.610536][    C0]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[  856.610767][    C0]  uart_write+0x220/0x920
[  856.610910][    C0]  process_output_block+0x13e/0x790
[  856.611084][    C0]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[  856.611296][    C0]  n_tty_write+0x40c/0x790
[  856.611471][    C0]  ? __pfx_n_tty_write+0x10/0x10
[  856.611646][    C0]  ? trace_lock_acquire+0x14d/0x1f0
[  856.611821][    C0]  ? __pfx_woken_wake_function+0x10/0x10
[  856.611992][    C0]  ? iterate_tty_write+0x8f/0x540
[  856.612171][    C0]  ? lock_acquire+0x32/0xc0
[  856.612337][    C0]  ? iterate_tty_write+0x8f/0x540
[  856.612509][    C0]  iterate_tty_write+0x222/0x540
[  856.612683][    C0]  ? tty_ldisc_ref_wait+0x28/0x80
[  856.612854][    C0]  file_tty_write.constprop.0+0x1cf/0x360
[  856.613029][    C0]  vfs_write+0xa81/0x11e0
[  856.613165][    C0]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  856.613337][    C0]  ? __pfx_vfs_write+0x10/0x10
[  856.613508][    C0]  ? clockevents_program_event+0xf6/0x300
[  856.613692][    C0]  ? clockevents_program_event+0x1ea/0x300
[  856.613902][    C0]  ksys_write+0xf5/0x1e0
[  856.614032][    C0]  ? __pfx_ksys_write+0x10/0x10
[  856.614208][    C0]  do_syscall_64+0xc1/0x1d0
[  856.614379][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  856.614589][    C0] RIP: 0033:0x7f4056aae957
[  856.614765][    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
[  856.615332][    C0] RSP: 002b:00007ffe17d3afa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  856.615587][    C0] RAX: ffffffffffffffda RBX: 000056205bd763f0 RCX: 00007f4056aae957
[  856.615838][    C0] RDX: 0000000000000001 RSI: 000056205bd763f0 RDI: 0000000000000001
[  856.616085][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  856.616338][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000056205bd615e0
[  856.616580][    C0] R13: 000056205bd422a0 R14: 0000000000000001 R15: 000056205bd615e0
[  856.616843][    C0]  </TASK>
[  856.616975][    C0] handlers:
[  856.617102][    C0] [<ffffffff9177c8f0>] serial8250_interrupt
[  856.617484][    C0] Disabling IRQ #51