[  463.612015] Mirror/redirect action on
[  463.614242] tc (20156) used greatest stack depth: 11952 bytes left
[  474.133716] irq 4: nobody cared (try booting with the "irqpoll" option)
[  474.133820] CPU: 3 UID: 0 PID: 19697 Comm: perl Not tainted 6.11.0-rc7-virtme #1
[  474.133871] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  474.133936] Call Trace:
[  474.133960]  <IRQ>
[  474.133988]  dump_stack_lvl+0x55/0x70
[  474.134031]  __report_bad_irq+0x2b/0xc0
[  474.134064]  note_interrupt+0x2a7/0x2f0
[  474.134092]  handle_irq_event+0x72/0x80
[  474.134120]  handle_edge_irq+0x8b/0x230
[  474.134149]  __common_interrupt+0x3c/0xb0
[  474.134177]  common_interrupt+0x80/0x90
[  474.134210]  </IRQ>
[  474.134228]  <TASK>
[  474.134247]  asm_common_interrupt+0x26/0x40
[  474.134279] RIP: 0010:_raw_spin_unlock_irqrestore+0x1c/0x30
[  474.134319] 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 a9 53 <74> 05 c3 cc cc cc cc 0f 1f 44 00 00 c3 cc cc cc cc 0f 1f 00 90 90
[  474.134442] RSP: 0018:ffffb68840c83d60 EFLAGS: 00000286
[  474.134478] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000017
[  474.134546] RDX: ffffffffac18727d RSI: 0000000000000286 RDI: ffffffffadaf9360
[  474.134591] RBP: ffff979341ec8000 R08: 0000006e7500f269 R09: 0000000000000001
[  474.134642] R10: ffff9793429595f8 R11: 0000000000000000 R12: ffffffffadaf9360
[  474.134705] R13: 0000000000000286 R14: ffff979342959800 R15: ffff979342959400
[  474.134762]  ? rpm_suspend+0x1ad/0x5e0
[  474.134795]  uart_write+0x89/0x150
[  474.134825]  n_tty_write+0x1a6/0x520
[  474.134856]  ? __pfx_woken_wake_function+0x10/0x10
[  474.134890]  file_tty_write.constprop.0+0x14d/0x330
[  474.134926]  vfs_write+0x332/0x460
[  474.134958]  ksys_write+0x63/0xe0
[  474.134986]  do_syscall_64+0x9e/0x1a0
[  474.135011]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  474.135044] RIP: 0033:0x7f5ac096c957
[  474.135072] 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
[  474.135201] RSP: 002b:00007ffe4d1e6538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  474.135246] RAX: ffffffffffffffda RBX: 000055abee8730b0 RCX: 00007f5ac096c957
[  474.135291] RDX: 0000000000000001 RSI: 000055abee8730b0 RDI: 0000000000000001
[  474.135335] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  474.135380] R10: 0000000000000001 R11: 0000000000000246 R12: 000055abee85f580
[  474.135425] R13: 000055abee8402a0 R14: 0000000000000001 R15: 000055abee85f580
[  474.135472]  </TASK>
[  474.135489] handlers:
[  474.135507] [<00000000868f10a3>] serial8250_interrupt
[  474.135561] Disabling IRQ #4