[  861.959605][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[  861.960046][    C0] CPU: 0 UID: 0 PID: 6349 Comm: perl Not tainted 6.12.0-virtme #1
[  861.960313][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  861.960543][    C0] Call Trace:
[  861.960694][    C0]  <IRQ>
[  861.960793][    C0]  dump_stack_lvl+0x82/0xd0
[  861.960995][    C0]  __report_bad_irq+0x5f/0x180
[  861.961180][    C0]  note_interrupt+0x66d/0x7f0
[  861.961378][    C0]  handle_irq_event+0x16d/0x1c0
[  861.961559][    C0]  handle_edge_irq+0x1fa/0xb60
[  861.961771][    C0]  __common_interrupt+0x82/0x170
[  861.961968][    C0]  common_interrupt+0x81/0xa0
[  861.962156][    C0]  </IRQ>
[  861.962252][    C0]  <TASK>
[  861.962342][    C0]  asm_common_interrupt+0x26/0x40
[  861.962529][    C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[  861.962756][    C0] Code: 10 e8 11 17 82 fd 48 89 ef e8 c9 8b 82 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 b5 a8 34 6a <74> 0e 5b 5d c3 cc cc cc cc e8 0f df a7 fd eb dc 0f 1f 44 00 00 5b
[  861.963396][    C0] RSP: 0018:ffffc900047a7aa0 EFLAGS: 00000286
[  861.963621][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff3205f67
[  861.963884][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff95cf1c61
[  861.964151][    C0] RBP: ffffffff998f6800 R08: 0000000000000001 R09: fffffbfff32015ef
[  861.964410][    C0] R10: ffffffff9900af7f R11: ffff88800e4c45c0 R12: 00000000ffffffff
[  861.964671][    C0] R13: 0000000000000001 R14: ffffffff998f6908 R15: 00000000ffffffff
[  861.964938][    C0]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[  861.965170][    C0]  uart_write+0x220/0x920
[  861.965311][    C0]  process_output_block+0x13e/0x790
[  861.965496][    C0]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[  861.965763][    C0]  n_tty_write+0x40c/0x790
[  861.965947][    C0]  ? __pfx_n_tty_write+0x10/0x10
[  861.966125][    C0]  ? trace_lock_acquire+0x148/0x1f0
[  861.966313][    C0]  ? __pfx_woken_wake_function+0x10/0x10
[  861.966515][    C0]  ? lock_acquire+0x32/0xc0
[  861.966693][    C0]  ? iterate_tty_write+0x8f/0x540
[  861.966873][    C0]  iterate_tty_write+0x222/0x540
[  861.967064][    C0]  ? tty_ldisc_ref_wait+0x28/0x80
[  861.967248][    C0]  file_tty_write.constprop.0+0x1cf/0x360
[  861.967427][    C0]  vfs_write+0xa81/0x11e0
[  861.967560][    C0]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  861.967738][    C0]  ? __pfx_vfs_write+0x10/0x10
[  861.967924][    C0]  ? clockevents_program_event+0xf6/0x300
[  861.968118][    C0]  ksys_write+0xf8/0x1d0
[  861.968249][    C0]  ? __pfx_ksys_write+0x10/0x10
[  861.968431][    C0]  do_syscall_64+0xc1/0x1d0
[  861.968611][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  861.968830][    C0] RIP: 0033:0x7f2e4c31f957
[  861.969013][    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
[  861.969629][    C0] RSP: 002b:00007ffca1781d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  861.969920][    C0] RAX: ffffffffffffffda RBX: 00005642a1e8c2b0 RCX: 00007f2e4c31f957
[  861.970195][    C0] RDX: 0000000000000001 RSI: 00005642a1e8c2b0 RDI: 0000000000000001
[  861.970460][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  861.970727][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 00005642a1e775e0
[  861.970992][    C0] R13: 00005642a1e582a0 R14: 0000000000000001 R15: 00005642a1e775e0
[  861.971278][    C0]  </TASK>
[  861.971414][    C0] handlers:
[  861.971556][    C0] [<ffffffff945b4030>] serial8250_interrupt
[  861.972392][    C0] Disabling IRQ #51