[  458.081547] irq 4: nobody cared (try booting with the "irqpoll" option)
[  458.081690] CPU: 3 UID: 0 PID: 6221 Comm: perl Not tainted 6.12.0-rc3-virtme #1
[  458.081767] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  458.081867] Call Trace:
[  458.081903]  <IRQ>
[  458.081935]  dump_stack_lvl+0x55/0x70
[  458.081988]  __report_bad_irq+0x2b/0xc0
[  458.082039]  note_interrupt+0x2a7/0x2f0
[  458.082082]  handle_irq_event+0x72/0x80
[  458.082121]  handle_edge_irq+0x8b/0x230
[  458.082158]  __common_interrupt+0x3c/0xb0
[  458.082201]  common_interrupt+0x80/0x90
[  458.082243]  </IRQ>
[  458.082272]  <TASK>
[  458.082300]  asm_common_interrupt+0x26/0x40
[  458.082349] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  458.082403] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d ec 6a 48 42 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  458.082555] RSP: 0018:ffff9fa48719bd60 EFLAGS: 00000286
[  458.082610] RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000017
[  458.082683] RDX: ffffffffbd79b2ed RSI: 0000000000000282 RDI: ffffffffbf10a120
[  458.082751] RBP: ffff8ff0c1fa0000 R08: 0000006ab82510a2 R09: 0000000000000001
[  458.082820] R10: ffff8ff0c261ddf8 R11: 0000000000000000 R12: 0000000000000001
[  458.082889] R13: ffffffffbf10a120 R14: 0000000000000282 R15: ffff8ff0c261dc00
[  458.082958]  ? rpm_suspend+0x1ad/0x5e0
[  458.083005]  uart_write+0xb2/0x270
[  458.083043]  n_tty_write+0x1a3/0x520
[  458.083081]  ? __pfx_woken_wake_function+0x10/0x10
[  458.083123]  file_tty_write.constprop.0+0x147/0x330
[  458.083169]  vfs_write+0x335/0x470
[  458.083207]  ksys_write+0x63/0xe0
[  458.083240]  do_syscall_64+0x9e/0x1a0
[  458.083275]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  458.083318] RIP: 0033:0x7fda5de8a957
[  458.083355] 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
[  458.083476] RSP: 002b:00007ffeba389788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  458.083601] RAX: ffffffffffffffda RBX: 000055ce8efa31f0 RCX: 00007fda5de8a957
[  458.083664] RDX: 0000000000000001 RSI: 000055ce8efa31f0 RDI: 0000000000000001
[  458.083725] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  458.083784] R10: 0000000000000001 R11: 0000000000000246 R12: 000055ce8ef8f580
[  458.083843] R13: 000055ce8ef702a0 R14: 0000000000000001 R15: 000055ce8ef8f580
[  458.083915]  </TASK>
[  458.083940] handlers:
[  458.083960] [<000000003dca6070>] serial8250_interrupt
[  458.084006] Disabling IRQ #4