[ 1196.276519][ T8396] Mirror/redirect action on
[ 1220.702553][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1220.702953][    C3] CPU: 3 UID: 0 PID: 8249 Comm: perl Not tainted 6.11.0-rc3-virtme #1
[ 1220.703223][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1220.703694][    C3] Call Trace:
[ 1220.703825][    C3]  <IRQ>
[ 1220.703916][    C3]  dump_stack_lvl+0x82/0xd0
[ 1220.704097][    C3]  __report_bad_irq+0x5f/0x180
[ 1220.704271][    C3]  note_interrupt+0x6b3/0x860
[ 1220.704444][    C3]  handle_irq_event+0x16d/0x1c0
[ 1220.704613][    C3]  handle_edge_irq+0x1fa/0xb60
[ 1220.704784][    C3]  __common_interrupt+0x82/0x170
[ 1220.704977][    C3]  common_interrupt+0x7e/0x90
[ 1220.705146][    C3]  </IRQ>
[ 1220.705238][    C3]  <TASK>
[ 1220.705328][    C3]  asm_common_interrupt+0x26/0x40
[ 1220.705510][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1220.705733][    C3] Code: 10 e8 c1 7b 8d fd 48 89 ef e8 69 ec 8d 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 15 b8 a1 55 <74> 0e 5b 5d c3 cc cc cc cc e8 0f a3 b1 fd eb dc 0f 1f 44 00 00 5b
[ 1220.706341][    C3] RSP: 0018:ffffc9000743fab8 EFLAGS: 00000286
[ 1220.706573][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff5b37831
[ 1220.706831][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaa621081
[ 1220.707093][    C3] RBP: ffffffffae27d360 R08: 0000000000000001 R09: fffffbfff5b32910
[ 1220.707357][    C3] R10: ffffffffad994887 R11: 0000000000000000 R12: ffffffffae27d468
[ 1220.707606][    C3] R13: ffff888006973400 R14: ffffffffae27d360 R15: 0000000000000286
[ 1220.707875][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1220.708091][    C3]  uart_write+0x13e/0x320
[ 1220.708222][    C3]  process_output_block+0x13e/0x790
[ 1220.708391][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1220.708603][    C3]  n_tty_write+0x412/0x7a0
[ 1220.708781][    C3]  ? __pfx_n_tty_write+0x10/0x10
[ 1220.708953][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1220.709123][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[ 1220.709297][    C3]  ? iterate_tty_write+0x95/0x540
[ 1220.709464][    C3]  ? lock_acquire+0x32/0xc0
[ 1220.709629][    C3]  ? iterate_tty_write+0x95/0x540
[ 1220.709800][    C3]  iterate_tty_write+0x228/0x540
[ 1220.709970][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1220.710145][    C3]  file_tty_write.constprop.0+0x1db/0x370
[ 1220.710326][    C3]  vfs_write+0xa1b/0x10b0
[ 1220.710459][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1220.710630][    C3]  ? __pfx_vfs_write+0x10/0x10
[ 1220.710801][    C3]  ? clockevents_program_event+0xf6/0x300
[ 1220.710994][    C3]  ? __fget_light+0x53/0x1e0
[ 1220.711175][    C3]  ? clockevents_program_event+0x1ea/0x300
[ 1220.711390][    C3]  ksys_write+0xf5/0x1e0
[ 1220.711532][    C3]  ? __pfx_ksys_write+0x10/0x10
[ 1220.711712][    C3]  do_syscall_64+0xc1/0x1d0
[ 1220.711883][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1220.712092][    C3] RIP: 0033:0x7f1a68d0a957
[ 1220.712269][    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
[ 1220.712886][    C3] RSP: 002b:00007ffeee893b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1220.713147][    C3] RAX: ffffffffffffffda RBX: 00005587a5d0d310 RCX: 00007f1a68d0a957
[ 1220.713397][    C3] RDX: 0000000000000001 RSI: 00005587a5d0d310 RDI: 0000000000000001
[ 1220.713642][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1220.713893][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005587a5cf95c0
[ 1220.714146][    C3] R13: 00005587a5cda2a0 R14: 0000000000000001 R15: 00005587a5cf95c0
[ 1220.714405][    C3]  </TASK>
[ 1220.714538][    C3] handlers:
[ 1220.714675][    C3] [<ffffffffa8f1de70>] serial8250_interrupt
[ 1220.715082][    C3] Disabling IRQ #4