[  470.110254] Mirror/redirect action on
[  481.043014] irq 4: nobody cared (try booting with the "irqpoll" option)
[  481.043144] CPU: 3 UID: 0 PID: 4182 Comm: perl Not tainted 6.11.0-rc5-virtme #1
[  481.043194] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  481.043259] Call Trace:
[  481.043282]  <IRQ>
[  481.043303]  dump_stack_lvl+0x55/0x70
[  481.043337]  __report_bad_irq+0x2b/0xc0
[  481.043367]  note_interrupt+0x2a7/0x2f0
[  481.043391]  handle_irq_event+0x72/0x80
[  481.043416]  handle_edge_irq+0x8b/0x230
[  481.043448]  __common_interrupt+0x3c/0xb0
[  481.043486]  common_interrupt+0x80/0x90
[  481.043521]  </IRQ>
[  481.043535]  <TASK>
[  481.043549]  asm_common_interrupt+0x26/0x40
[  481.043578] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  481.043614] 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 bc 88 49 7d <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  481.043710] RSP: 0018:ffff9d42002a7d60 EFLAGS: 00000286
[  481.043741] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  481.043792] RDX: ffffffff82786f1d RSI: 0000000000000286 RDI: ffffffff840f9360
[  481.043846] RBP: ffff89bb41d94000 R08: 000000701261f5cf R09: 0000000000000001
[  481.043891] R10: ffff89bb430111f8 R11: 0000000000000000 R12: ffffffff840f9360
[  481.043937] R13: 0000000000000286 R14: ffff89bb43012000 R15: ffff89bb43011000
[  481.043982]  ? rpm_suspend+0x1ad/0x5e0
[  481.044012]  uart_write+0x89/0x150
[  481.044043]  n_tty_write+0x1a6/0x520
[  481.044071]  ? __pfx_woken_wake_function+0x10/0x10
[  481.044111]  file_tty_write.constprop.0+0x14d/0x330
[  481.044145]  vfs_write+0x332/0x460
[  481.044172]  ksys_write+0x63/0xe0
[  481.044199]  do_syscall_64+0x9e/0x1a0
[  481.044225]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  481.044257] RIP: 0033:0x7fcd6cf3b957
[  481.044281] 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
[  481.044398] RSP: 002b:00007fffb9426c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  481.044451] RAX: ffffffffffffffda RBX: 000055e8765720b0 RCX: 00007fcd6cf3b957
[  481.044497] RDX: 0000000000000001 RSI: 000055e8765720b0 RDI: 0000000000000001
[  481.044547] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  481.044586] R10: 0000000000000001 R11: 0000000000000246 R12: 000055e87655e580
[  481.044631] R13: 000055e87653f2a0 R14: 0000000000000001 R15: 000055e87655e580
[  481.044677]  </TASK>
[  481.044698] handlers:
[  481.044717] [<000000007bc8db52>] serial8250_interrupt
[  481.044765] Disabling IRQ #4