[ 1406.506653][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1406.507109][    C0] CPU: 0 UID: 0 PID: 9126 Comm: perl Not tainted 6.12.0-virtme #1
[ 1406.507414][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1406.507668][    C0] Call Trace:
[ 1406.507830][    C0]  <IRQ>
[ 1406.507948][    C0]  dump_stack_lvl+0x82/0xd0
[ 1406.508179][    C0]  __report_bad_irq+0x5f/0x180
[ 1406.508381][    C0]  note_interrupt+0x66d/0x7f0
[ 1406.508582][    C0]  handle_irq_event+0x16d/0x1c0
[ 1406.508770][    C0]  handle_edge_irq+0x1fa/0xb60
[ 1406.508956][    C0]  __common_interrupt+0x82/0x170
[ 1406.509140][    C0]  common_interrupt+0x81/0xa0
[ 1406.509327][    C0]  </IRQ>
[ 1406.509433][    C0]  <TASK>
[ 1406.509529][    C0]  asm_common_interrupt+0x26/0x40
[ 1406.509729][    C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1406.509990][    C0] Code: 10 e8 71 9a 83 fd 48 89 ef e8 29 0f 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 75 94 d6 7b <74> 0e 5b 5d c3 cc cc cc cc e8 5f f7 a8 fd eb dc 0f 1f 44 00 00 5b
[ 1406.510640][    C0] RSP: 0018:ffffc90000917aa0 EFLAGS: 00000286
[ 1406.510898][    C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff0ec40da
[ 1406.511173][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff842d32e1
[ 1406.511463][    C0] RBP: ffffffff87ee78a0 R08: 0000000000000001 R09: fffffbfff0ebf7df
[ 1406.511734][    C0] R10: ffffffff875fbeff R11: ffff88800c24c5c0 R12: 00000000ffffffff
[ 1406.512004][    C0] R13: 0000000000000001 R14: ffffffff87ee79a8 R15: 00000000ffffffff
[ 1406.512285][    C0]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1406.512522][    C0]  uart_write+0x220/0x920
[ 1406.512679][    C0]  process_output_block+0x13e/0x790
[ 1406.512867][    C0]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1406.513101][    C0]  n_tty_write+0x40c/0x790
[ 1406.513290][    C0]  ? __pfx_n_tty_write+0x10/0x10
[ 1406.513477][    C0]  ? trace_lock_acquire+0x14d/0x1f0
[ 1406.513659][    C0]  ? __pfx_woken_wake_function+0x10/0x10
[ 1406.513841][    C0]  ? iterate_tty_write+0x8f/0x540
[ 1406.514023][    C0]  ? lock_acquire+0x32/0xc0
[ 1406.514218][    C0]  ? iterate_tty_write+0x8f/0x540
[ 1406.514419][    C0]  iterate_tty_write+0x222/0x540
[ 1406.514619][    C0]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1406.514823][    C0]  file_tty_write.constprop.0+0x1cf/0x360
[ 1406.515022][    C0]  vfs_write+0xa81/0x11e0
[ 1406.515174][    C0]  ? __pfx___lock_release+0x10/0x10
[ 1406.515366][    C0]  ? trace_lock_acquire+0x14d/0x1f0
[ 1406.515550][    C0]  ? __might_fault+0xc3/0x170
[ 1406.515743][    C0]  ? lock_acquire+0x32/0xc0
[ 1406.515927][    C0]  ? __pfx_vfs_write+0x10/0x10
[ 1406.516128][    C0]  ? trace_rseq_update+0xe2/0x140
[ 1406.516314][    C0]  ? __rseq_handle_notify_resume+0x288/0x3e0
[ 1406.516551][    C0]  ksys_write+0xf8/0x1d0
[ 1406.516692][    C0]  ? __pfx_ksys_write+0x10/0x10
[ 1406.516886][    C0]  do_syscall_64+0xc1/0x1d0
[ 1406.517080][    C0]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1406.517321][    C0] RIP: 0033:0x7f4174f72957
[ 1406.517528][    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
[ 1406.518197][    C0] RSP: 002b:00007fff1a6c2208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1406.518493][    C0] RAX: ffffffffffffffda RBX: 0000562320f6d3f0 RCX: 00007f4174f72957
[ 1406.518777][    C0] RDX: 0000000000000001 RSI: 0000562320f6d3f0 RDI: 0000000000000001
[ 1406.519061][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1406.519333][    C0] R10: 0000000000000001 R11: 0000000000000246 R12: 0000562320f585e0
[ 1406.519612][    C0] R13: 0000562320f392a0 R14: 0000000000000001 R15: 0000562320f585e0
[ 1406.519903][    C0]  </TASK>
[ 1406.520041][    C0] handlers:
[ 1406.520180][    C0] [<ffffffff82b9e990>] serial8250_interrupt
[ 1406.520656][    C0] Disabling IRQ #51