[  504.909709] irq 4: nobody cared (try booting with the "irqpoll" option)
[  504.909835] CPU: 3 UID: 0 PID: 11739 Comm: perl Not tainted 6.11.0-virtme #1
[  504.909907] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  504.910010] Call Trace:
[  504.910045]  <IRQ>
[  504.910068]  dump_stack_lvl+0x55/0x70
[  504.910107]  __report_bad_irq+0x2b/0xc0
[  504.910141]  note_interrupt+0x2a7/0x2f0
[  504.910171]  handle_irq_event+0x72/0x80
[  504.910199]  handle_edge_irq+0x8b/0x230
[  504.910238]  __common_interrupt+0x3c/0xb0
[  504.910270]  common_interrupt+0x80/0x90
[  504.910312]  </IRQ>
[  504.910340]  <TASK>
[  504.910360]  asm_common_interrupt+0x26/0x40
[  504.910401] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  504.910443] 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 29 6c <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  504.910587] RSP: 0018:ffffb7b900d4bd60 EFLAGS: 00000286
[  504.910630] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  504.910690] RDX: ffffffff9398770d RSI: 0000000000000286 RDI: ffffffff952f9360
[  504.910751] RBP: ffff9cdb81f1c000 R08: 00000075a0e47619 R09: 0000000000000001
[  504.910827] R10: ffff9cdb81e98df8 R11: 0000000000000000 R12: ffffffff952f9360
[  504.910901] R13: 0000000000000286 R14: ffff9cdb81e99000 R15: ffff9cdb81e98c00
[  504.910983]  ? rpm_suspend+0x1ad/0x5e0
[  504.911022]  uart_write+0x89/0x150
[  504.911060]  n_tty_write+0x1a6/0x520
[  504.911097]  ? __pfx_woken_wake_function+0x10/0x10
[  504.911143]  file_tty_write.constprop.0+0x14d/0x330
[  504.911192]  vfs_write+0x332/0x460
[  504.911238]  ksys_write+0x63/0xe0
[  504.911277]  do_syscall_64+0x9e/0x1a0
[  504.911321]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  504.911373] RIP: 0033:0x7fa8b79a0957
[  504.911409] 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
[  504.911589] RSP: 002b:00007ffd4b1ded88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  504.911638] RAX: ffffffffffffffda RBX: 0000557c0eaf01f0 RCX: 00007fa8b79a0957
[  504.911694] RDX: 0000000000000001 RSI: 0000557c0eaf01f0 RDI: 0000000000000001
[  504.911756] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  504.911818] R10: 0000000000000001 R11: 0000000000000246 R12: 0000557c0eadc580
[  504.911880] R13: 0000557c0eabd2a0 R14: 0000000000000001 R15: 0000557c0eadc580
[  504.911936]  </TASK>
[  504.911962] handlers:
[  504.911990] [<000000005e607ba4>] serial8250_interrupt
[  504.912039] Disabling IRQ #4