[  491.286970] irq 4: nobody cared (try booting with the "irqpoll" option)
[  491.287089] CPU: 3 UID: 0 PID: 4593 Comm: perl Not tainted 6.11.0-virtme #1
[  491.287149] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  491.287225] Call Trace:
[  491.287252]  <IRQ>
[  491.287278]  dump_stack_lvl+0x55/0x70
[  491.287317]  __report_bad_irq+0x2b/0xc0
[  491.287353]  note_interrupt+0x2a7/0x2f0
[  491.287390]  handle_irq_event+0x72/0x80
[  491.287421]  handle_edge_irq+0x8b/0x230
[  491.287452]  __common_interrupt+0x3c/0xb0
[  491.287485]  common_interrupt+0x80/0x90
[  491.287519]  </IRQ>
[  491.287541]  <TASK>
[  491.287562]  asm_common_interrupt+0x26/0x40
[  491.287602] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  491.287646] 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 3c 87 69 54 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  491.287781] RSP: 0018:ffffa03100e5bd60 EFLAGS: 00000286
[  491.287825] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  491.287876] RDX: ffffffffab58733d RSI: 0000000000000286 RDI: ffffffffacef9360
[  491.287928] RBP: ffff918301ec8000 R08: 00000072784d36fe R09: 0000000000000001
[  491.287980] R10: ffff9183027c95f8 R11: 0000000000000000 R12: ffffffffacef9360
[  491.288035] R13: 0000000000000286 R14: ffff9183027c8c00 R15: ffff9183027c9400
[  491.288088]  ? rpm_suspend+0x1ad/0x5e0
[  491.288126]  uart_write+0x89/0x150
[  491.288161]  n_tty_write+0x1a6/0x520
[  491.288194]  ? __pfx_woken_wake_function+0x10/0x10
[  491.288235]  file_tty_write.constprop.0+0x14d/0x330
[  491.288272]  vfs_write+0x332/0x460
[  491.288308]  ksys_write+0x63/0xe0
[  491.288339]  do_syscall_64+0x9e/0x1a0
[  491.288378]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  491.288416] RIP: 0033:0x7f2e9db85957
[  491.288447] 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
[  491.288559] RSP: 002b:00007ffc1c707788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  491.288623] RAX: ffffffffffffffda RBX: 0000561e1b6111f0 RCX: 00007f2e9db85957
[  491.288673] RDX: 0000000000000001 RSI: 0000561e1b6111f0 RDI: 0000000000000001
[  491.288732] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  491.288793] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561e1b5fd580
[  491.288849] R13: 0000561e1b5de2a0 R14: 0000000000000001 R15: 0000561e1b5fd580
[  491.288906]  </TASK>
[  491.288926] handlers:
[  491.288952] [<000000004303c366>] serial8250_interrupt
[  491.288995] Disabling IRQ #4
[  526.748213] tc (5842) used greatest stack depth: 11952 bytes left