[  471.979686] irq 51: nobody cared (try booting with the "irqpoll" option)
[  471.979803] CPU: 0 UID: 0 PID: 7322 Comm: perl Not tainted 6.19.0-rc2-virtme #1 PREEMPT(voluntary) 
[  471.979806] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  471.979807] Call Trace:
[  471.979811]  <IRQ>
[  471.979814]  dump_stack_lvl+0x4d/0x70
[  471.979820]  __report_bad_irq+0x35/0xb8
[  471.979823]  note_interrupt.cold+0x28/0x66
[  471.979824]  handle_irq_event+0x6e/0x80
[  471.979827]  handle_edge_irq+0xbc/0x180
[  471.979829]  __common_interrupt+0x40/0xd0
[  471.979831]  ? __sysvec_apic_timer_interrupt+0x52/0xf0
[  471.979833]  common_interrupt+0x7a/0x90
[  471.979837]  </IRQ>
[  471.979837]  <TASK>
[  471.979838]  asm_common_interrupt+0x26/0x40
[  471.979840] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  471.979843] Code: 00 66 90 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d e4 c2 e8 00 <74> 01 c3 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f
[  471.979844] RSP: 0018:ff4c7df8c517fd38 EFLAGS: 00000286
[  471.979846] RAX: 00000000ffffffff RBX: ff179866c1f88000 RCX: 0000000000000017
[  471.979847] RDX: ffffffff82dce935 RSI: 0000000000000282 RDI: ffffffff840c0680
[  471.979847] RBP: 0000000000000001 R08: 0000000000000001 R09: ff179866c2ced400
[  471.979848] R10: ff4c7df8c517fe68 R11: 0000000000000001 R12: ffffffff840c0680
[  471.979848] R13: ff4c7df8c0355000 R14: ff179866c2ced400 R15: 0000000000000282
[  471.979849]  ? rpm_suspend+0x185/0x5e0
[  471.979854]  uart_write+0xb4/0x270
[  471.979857]  n_tty_write+0x155/0x560
[  471.979859]  ? swake_up_all+0xd0/0xd0
[  471.979861]  file_tty_write.isra.0+0x15b/0x2a0
[  471.979862]  vfs_write+0x258/0x4d0
[  471.979866]  ? __hrtimer_run_queues+0x161/0x2a0
[  471.979868]  ksys_write+0x73/0xe0
[  471.979870]  do_syscall_64+0xa4/0xfc0
[  471.979871]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  471.979872] RIP: 0033:0x7fa6d01edc5e
[  471.979874] Code: 4d 89 d8 e8 14 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
[  471.979875] RSP: 002b:00007ffdebcf0670 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  471.979876] RAX: ffffffffffffffda RBX: 0000561cee258280 RCX: 00007fa6d01edc5e
[  471.979876] RDX: 0000000000000001 RSI: 0000561cee258280 RDI: 0000000000000001
[  471.979877] RBP: 00007ffdebcf0680 R08: 0000000000000000 R09: 0000000000000000
[  471.979877] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[  471.979877] R13: 0000561cee219010 R14: 0000000000000001 R15: 0000561cee258280
[  471.979878]  </TASK>
[  471.979879] handlers:
[  471.981477] [<00000000144297d8>] serial8250_interrupt
[  471.981509] Disabling IRQ #51