[ 1195.665807][ T8409] Mirror/redirect action on
[ 1294.666995][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1294.667343][    C3] CPU: 3 UID: 0 PID: 8262 Comm: perl Not tainted 6.11.0-rc5-virtme #1
[ 1294.667603][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1294.667979][    C3] Call Trace:
[ 1294.668113][    C3]  <IRQ>
[ 1294.668209][    C3]  dump_stack_lvl+0x82/0xd0
[ 1294.668395][    C3]  __report_bad_irq+0x5f/0x180
[ 1294.668576][    C3]  note_interrupt+0x6b3/0x860
[ 1294.668750][    C3]  handle_irq_event+0x16d/0x1c0
[ 1294.668922][    C3]  handle_edge_irq+0x1fa/0xb60
[ 1294.669097][    C3]  __common_interrupt+0x82/0x170
[ 1294.669272][    C3]  common_interrupt+0x7e/0x90
[ 1294.669452][    C3]  </IRQ>
[ 1294.669543][    C3]  <TASK>
[ 1294.669650][    C3]  asm_common_interrupt+0x26/0x40
[ 1294.669828][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1294.670047][    C3] Code: 10 e8 71 ac 8d fd 48 89 ef e8 19 1d 8e fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 35 eb c1 5d <74> 0e 5b 5d c3 cc cc cc cc e8 cf d5 b1 fd eb dc 0f 1f 44 00 00 5b
[ 1294.670634][    C3] RSP: 0018:ffffc90007dffab8 EFLAGS: 00000286
[ 1294.670844][    C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff4af7807
[ 1294.671093][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa241dd61
[ 1294.671342][    C3] RBP: ffffffffa607d260 R08: 0000000000000001 R09: fffffbfff4af2918
[ 1294.671592][    C3] R10: ffffffffa57948c7 R11: 0000000000000000 R12: ffffffffa607d368
[ 1294.671858][    C3] R13: ffff888007aecc00 R14: ffffffffa607d260 R15: 0000000000000286
[ 1294.672116][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1294.672331][    C3]  uart_write+0x13e/0x320
[ 1294.672461][    C3]  process_output_block+0x13e/0x790
[ 1294.672630][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1294.672844][    C3]  n_tty_write+0x412/0x7a0
[ 1294.673022][    C3]  ? __pfx_n_tty_write+0x10/0x10
[ 1294.673202][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.673377][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[ 1294.673558][    C3]  ? iterate_tty_write+0x95/0x540
[ 1294.673755][    C3]  ? lock_acquire+0x32/0xc0
[ 1294.673958][    C3]  ? iterate_tty_write+0x95/0x540
[ 1294.674141][    C3]  iterate_tty_write+0x228/0x540
[ 1294.674331][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1294.674520][    C3]  file_tty_write.constprop.0+0x1db/0x370
[ 1294.674695][    C3]  vfs_write+0xa1b/0x10b0
[ 1294.674826][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1294.675042][    C3]  ? __pfx_vfs_write+0x10/0x10
[ 1294.675242][    C3]  ? __fget_light+0xcd/0x1e0
[ 1294.675420][    C3]  ? __fget_light+0x53/0x1e0
[ 1294.675608][    C3]  ksys_write+0xf5/0x1e0
[ 1294.675741][    C3]  ? __pfx_ksys_write+0x10/0x10
[ 1294.675928][    C3]  ? __local_bh_enable+0x80/0x90
[ 1294.676111][    C3]  do_syscall_64+0xc1/0x1d0
[ 1294.676298][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1294.676524][    C3] RIP: 0033:0x7f9a19462957
[ 1294.676711][    C3] 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
[ 1294.677344][    C3] RSP: 002b:00007ffe3bf54c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1294.677640][    C3] RAX: ffffffffffffffda RBX: 00005580948d72b0 RCX: 00007f9a19462957
[ 1294.677901][    C3] RDX: 0000000000000001 RSI: 00005580948d72b0 RDI: 0000000000000001
[ 1294.678173][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1294.678440][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005580948c25e0
[ 1294.678715][    C3] R13: 00005580948a32a0 R14: 0000000000000001 R15: 00005580948c25e0
[ 1294.679001][    C3]  </TASK>
[ 1294.679136][    C3] handlers:
[ 1294.679276][    C3] [<ffffffffa0d205d0>] serial8250_interrupt
[ 1294.679692][    C3] Disabling IRQ #4