[  859.431986][    C0] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1032047688 wd_nsec: 1032047703
[  975.486427][    C0] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 2550489734 wd_nsec: 2550489822
[ 1001.384523][    C0] irq 51: nobody cared (try booting with the "irqpoll" option)
[ 1001.384847][    C0] CPU: 0 UID: 0 PID: 7655 Comm: perl Not tainted 6.19.0-virtme #1 PREEMPT(full) 
[ 1001.384851][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1001.384852][    C0] Call Trace:
[ 1001.384854][    C0]  <IRQ>
[ 1001.384855][    C0]  dump_stack_lvl+0x6f/0xa0
[ 1001.384863][    C0]  __report_bad_irq+0x66/0x161
[ 1001.384868][    C0]  note_interrupt.cold+0x21/0xe7
[ 1001.384870][    C0]  ? serial8250_get_port+0x50/0x50
[ 1001.384875][    C0]  ? poll_spurious_irqs+0x140/0x140
[ 1001.384881][    C0]  handle_irq_event+0x166/0x1c0
[ 1001.384885][    C0]  handle_edge_irq+0x2ec/0x880
[ 1001.384889][    C0]  __common_interrupt+0xae/0x270
[ 1001.384891][    C0]  ? __sysvec_apic_timer_interrupt+0x15f/0x3d0
[ 1001.384895][    C0]  common_interrupt+0xb0/0xf0
[ 1001.384899][    C0]  </IRQ>
[ 1001.384900][    C0]  <TASK>
[ 1001.384901][    C0]  asm_common_interrupt+0x26/0x40
[ 1001.384903][    C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80
[ 1001.384907][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 61 5a de fd 48 89 df e8 c9 ab de fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 70 e3 d1 fd 65 8b 05 d9 4c 05 02 85 c0 74 12 5b
[ 1001.384909][    C0] RSP: 0018:ffa0000005997a70 EFLAGS: 00000246
[ 1001.384912][    C0] RAX: 0000000000000082 RBX: ffffffffac79d480 RCX: ffffffffa9704363
[ 1001.384913][    C0] RDX: ff11000010030040 RSI: ffffffffa9fb93e0 RDI: ffffffffa9a6a980
[ 1001.384914][    C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001
[ 1001.384915][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffac79d588
[ 1001.384916][    C0] R13: 0000000000000001 R14: ffffffffac79d5c0 R15: ff11000009e61000
[ 1001.384919][    C0]  ? _raw_spin_unlock_irqrestore+0x53/0x80
[ 1001.384924][    C0]  uart_write+0x21d/0x940
[ 1001.384932][    C0]  process_output_block+0x117/0x6e0
[ 1001.384937][    C0]  n_tty_write+0x3a8/0x8f0
[ 1001.384939][    C0]  ? _copy_from_iter+0x1b6/0x1580
[ 1001.384944][    C0]  ? n_tty_receive_signal_char+0x110/0x110
[ 1001.384946][    C0]  ? _mutex_trylock_nest_lock+0x21a/0x340
[ 1001.384949][    C0]  ? __init_waitqueue_head+0x160/0x160
[ 1001.384953][    C0]  ? lock_acquire.part.0+0xbc/0x260
[ 1001.384955][    C0]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1001.384959][    C0]  iterate_tty_write+0x27d/0x550
[ 1001.384961][    C0]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1001.384964][    C0]  file_tty_write.isra.0+0x1a2/0x240
[ 1001.384966][    C0]  ? redirected_tty_write+0xd0/0xd0
[ 1001.384968][    C0]  new_sync_write+0x308/0x6f0
[ 1001.384971][    C0]  ? new_sync_read+0x3bb/0x6f0
[ 1001.384974][    C0]  ? new_sync_read+0x6f0/0x6f0
[ 1001.384975][    C0]  ? generic_atomic_write_valid+0x150/0x150
[ 1001.384978][    C0]  ? __lock_release.isra.0+0x59/0x170
[ 1001.384983][    C0]  vfs_write+0x65e/0xbb0
[ 1001.384986][    C0]  ? vfs_read+0x3cc/0x790
[ 1001.384989][    C0]  ksys_write+0xff/0x200
[ 1001.384991][    C0]  ? __ia32_sys_read+0xc0/0xc0
[ 1001.384994][    C0]  ? rcu_is_watching+0x15/0xd0
[ 1001.384998][    C0]  do_syscall_64+0x117/0xfc0
[ 1001.384999][    C0]  ? irq_exit_rcu+0x39/0xf0
[ 1001.385003][    C0]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1001.385005][    C0] RIP: 0033:0x7faafb22fc5e
[ 1001.385008][    C0] Code: 4d 89 d8 e8 34 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 1001.385009][    C0] RSP: 002b:00007fff02b71c10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1001.385010][    C0] RAX: ffffffffffffffda RBX: 000055f5567f53d0 RCX: 00007faafb22fc5e
[ 1001.385011][    C0] RDX: 0000000000000001 RSI: 000055f5567f53d0 RDI: 0000000000000001
[ 1001.385012][    C0] RBP: 00007fff02b71c20 R08: 0000000000000000 R09: 0000000000000000
[ 1001.385012][    C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[ 1001.385013][    C0] R13: 000055f5567b6010 R14: 0000000000000001 R15: 000055f5567f53d0
[ 1001.385019][    C0]  </TASK>
[ 1001.385020][    C0] handlers:
[ 1001.394252][    C0] [<ffffffffa86d9280>] serial8250_interrupt
[ 1001.394659][    C0] Disabling IRQ #51