[  423.718834] irq 4: nobody cared (try booting with the "irqpoll" option)
[  423.718958] CPU: 3 PID: 4013 Comm: perl Not tainted 6.10.0-rc3-virtme #1
[  423.719009] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  423.719096] Call Trace:
[  423.719130]  <IRQ>
[  423.719155]  dump_stack_lvl+0x55/0x70
[  423.719192]  __report_bad_irq+0x2b/0xc0
[  423.719226]  note_interrupt+0x2a7/0x2f0
[  423.719253]  handle_irq_event+0x72/0x80
[  423.719283]  handle_edge_irq+0x8b/0x230
[  423.719314]  __common_interrupt+0x3c/0xb0
[  423.719353]  common_interrupt+0x80/0x90
[  423.719392]  </IRQ>
[  423.719410]  <TASK>
[  423.719430]  asm_common_interrupt+0x26/0x40
[  423.719465] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  423.719503] 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 9c 45 6b 59 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  423.719600] RSP: 0018:ffffb2f784a7bd60 EFLAGS: 00000286
[  423.719647] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  423.719699] RDX: ffffffffa657077d RSI: 0000000000000282 RDI: ffffffffa7ee4540
[  423.719744] RBP: ffff8d5541f84000 R08: 00000062bc47de21 R09: 0000000000000001
[  423.719790] R10: ffff8d55425151f8 R11: 0000000000000000 R12: ffffffffa7ee4540
[  423.719836] R13: 0000000000000282 R14: ffff8d5542514800 R15: ffff8d5542515000
[  423.719881]  ? rpm_suspend+0x1ad/0x5e0
[  423.719914]  uart_write+0x89/0x160
[  423.719946]  n_tty_write+0x1a6/0x520
[  423.719977]  ? __pfx_woken_wake_function+0x10/0x10
[  423.720012]  file_tty_write.constprop.0+0x14d/0x330
[  423.720051]  vfs_write+0x32f/0x460
[  423.720083]  ksys_write+0x63/0xe0
[  423.720109]  do_syscall_64+0x9e/0x1a0
[  423.720140]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  423.720186] RIP: 0033:0x7f6ba0471957
[  423.720212] 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
[  423.720310] RSP: 002b:00007ffd20b0e618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  423.720356] RAX: ffffffffffffffda RBX: 000056532c287fd0 RCX: 00007f6ba0471957
[  423.720402] RDX: 0000000000000001 RSI: 000056532c287fd0 RDI: 0000000000000001
[  423.720447] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  423.720493] R10: 0000000000000001 R11: 0000000000000246 R12: 000056532c274560
[  423.720538] R13: 000056532c2552a0 R14: 0000000000000001 R15: 000056532c274560
[  423.720584]  </TASK>
[  423.720602] handlers:
[  423.720621] [<000000009ce36dc8>] serial8250_interrupt
[  423.720659] Disabling IRQ #4