[  679.019342] irq 4: nobody cared (try booting with the "irqpoll" option)
[  679.019455] CPU: 3 UID: 0 PID: 14511 Comm: perl Not tainted 6.11.0-rc5-virtme #1
[  679.019503] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  679.019571] Call Trace:
[  679.019596]  <IRQ>
[  679.019618]  dump_stack_lvl+0x55/0x70
[  679.019653]  __report_bad_irq+0x2b/0xc0
[  679.019686]  note_interrupt+0x2a7/0x2f0
[  679.019709]  handle_irq_event+0x72/0x80
[  679.019738]  handle_edge_irq+0x8b/0x230
[  679.019765]  __common_interrupt+0x3c/0xb0
[  679.019790]  common_interrupt+0x80/0x90
[  679.019819]  </IRQ>
[  679.019837]  <TASK>
[  679.019850]  asm_common_interrupt+0x26/0x40
[  679.019880] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  679.019918] 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 c7 69 61 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  679.020020] RSP: 0018:ffff9cc0c5343d60 EFLAGS: 00000286
[  679.020054] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  679.020098] RDX: ffffffff9e58705d RSI: 0000000000000286 RDI: ffffffff9fef8360
[  679.020142] RBP: ffff8efb81f08000 R08: 0000009e2ef289bc R09: 0000000000000001
[  679.020186] R10: ffff8efb82c855f8 R11: 0000000000000000 R12: ffffffff9fef8360
[  679.020230] R13: 0000000000000286 R14: ffff8efb82c85c00 R15: ffff8efb82c85400
[  679.020287]  ? rpm_suspend+0x1ad/0x5e0
[  679.020322]  uart_write+0x89/0x150
[  679.020353]  n_tty_write+0x1a6/0x520
[  679.020382]  ? __pfx_woken_wake_function+0x10/0x10
[  679.020416]  file_tty_write.constprop.0+0x14d/0x330
[  679.020449]  vfs_write+0x332/0x460
[  679.020482]  ksys_write+0x63/0xe0
[  679.020508]  do_syscall_64+0x9e/0x1a0
[  679.020536]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  679.020569] RIP: 0033:0x7fb0a401b957
[  679.020595] 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
[  679.020691] RSP: 002b:00007ffc08f470d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  679.020735] RAX: ffffffffffffffda RBX: 000055f5daca90b0 RCX: 00007fb0a401b957
[  679.020780] RDX: 0000000000000001 RSI: 000055f5daca90b0 RDI: 0000000000000001
[  679.020824] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  679.020868] R10: 0000000000000001 R11: 0000000000000246 R12: 000055f5dac95580
[  679.020912] R13: 000055f5dac762a0 R14: 0000000000000001 R15: 000055f5dac95580
[  679.020960]  </TASK>
[  679.020980] handlers:
[  679.021000] [<00000000e1c5663f>] serial8250_interrupt
[  679.021035] Disabling IRQ #4