[  638.031373] irq 4: nobody cared (try booting with the "irqpoll" option)
[  638.031508] CPU: 3 PID: 13422 Comm: perl Not tainted 6.9.0-virtme #1
[  638.031572] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  638.031664] Call Trace:
[  638.031693]  <IRQ>
[  638.031721]  dump_stack_lvl+0x55/0x70
[  638.031767]  __report_bad_irq+0x2b/0xc0
[  638.031803]  note_interrupt+0x2a7/0x2f0
[  638.031837]  handle_irq_event+0x72/0x80
[  638.031871]  handle_edge_irq+0x8b/0x230
[  638.031916]  __common_interrupt+0x3c/0xb0
[  638.031951]  common_interrupt+0x80/0x90
[  638.031989]  </IRQ>
[  638.032011]  <TASK>
[  638.032031]  asm_common_interrupt+0x26/0x40
[  638.032072] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  638.032120] 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 dc a5 4b 5d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  638.032254] RSP: 0018:ffffb2c002ab3d60 EFLAGS: 00000286
[  638.032297] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  638.032359] RDX: ffffffffa276f2bd RSI: 0000000000000282 RDI: ffffffffa40e0540
[  638.032413] RBP: ffffa0a501d58000 R08: 00000094a1bbd422 R09: 0000000000000001
[  638.032469] R10: ffffa0a501291df8 R11: 0000000000000000 R12: ffffffffa40e0540
[  638.032525] R13: 0000000000000282 R14: ffffa0a501291800 R15: ffffa0a501291c00
[  638.032590]  ? rpm_suspend+0x1ad/0x5e0
[  638.032631]  uart_write+0x89/0x160
[  638.032669]  n_tty_write+0x1a6/0x520
[  638.032707]  ? __pfx_woken_wake_function+0x10/0x10
[  638.032748]  file_tty_write.constprop.0+0x14d/0x330
[  638.032792]  vfs_write+0x32f/0x460
[  638.032830]  ksys_write+0x63/0xe0
[  638.032862]  do_syscall_64+0x9e/0x1a0
[  638.032895]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  638.032940] RIP: 0033:0x7f2b3b566957
[  638.032971] 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
[  638.033099] RSP: 002b:00007fff53e0a0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  638.033162] RAX: ffffffffffffffda RBX: 0000557714edbfd0 RCX: 00007f2b3b566957
[  638.033217] RDX: 0000000000000001 RSI: 0000557714edbfd0 RDI: 0000000000000001
[  638.033274] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  638.033327] R10: 0000000000000001 R11: 0000000000000246 R12: 0000557714ec8560
[  638.033383] R13: 0000557714ea92a0 R14: 0000000000000001 R15: 0000557714ec8560
[  638.033438]  </TASK>
[  638.033456] handlers:
[  638.033476] [<00000000f447d6cb>] serial8250_interrupt
[  638.033526] Disabling IRQ #4