[ 1172.497142][ T6286] Mirror/redirect action on
[ 1195.989593][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1195.989991][    C3] CPU: 3 UID: 0 PID: 6130 Comm: perl Not tainted 6.12.0-rc2-virtme #1
[ 1195.990229][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1195.990585][    C3] Call Trace:
[ 1195.990712][    C3]  <IRQ>
[ 1195.990797][    C3]  dump_stack_lvl+0x82/0xd0
[ 1195.990982][    C3]  __report_bad_irq+0x5f/0x180
[ 1195.991150][    C3]  note_interrupt+0x6b3/0x860
[ 1195.991318][    C3]  handle_irq_event+0x16d/0x1c0
[ 1195.991486][    C3]  handle_edge_irq+0x1fa/0xb60
[ 1195.991651][    C3]  __common_interrupt+0x82/0x170
[ 1195.991901][    C3]  common_interrupt+0x81/0xa0
[ 1195.992072][    C3]  </IRQ>
[ 1195.992159][    C3]  <TASK>
[ 1195.992250][    C3]  asm_common_interrupt+0x26/0x40
[ 1195.992408][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1195.992625][    C3] Code: 10 e8 61 ab 87 fd 48 89 ef e8 79 1c 88 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 55 17 bb 4d <74> 0e 5b 5d c3 cc cc cc cc e8 4f eb ac fd eb dc 0f 1f 44 00 00 5b
[ 1195.993181][    C3] RSP: 0018:ffffc90000f0faa0 EFLAGS: 00000286
[ 1195.993383][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff6afeca6
[ 1195.993616][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb248b1c1
[ 1195.993852][    C3] RBP: ffffffffb60ba3e0 R08: 0000000000000001 R09: fffffbfff6af9dd0
[ 1195.994097][    C3] R10: ffffffffb57cee87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1195.994338][    C3] R13: 0000000000000001 R14: ffffffffb60ba4e8 R15: 00000000ffffffff
[ 1195.994580][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1195.994785][    C3]  uart_write+0x220/0x920
[ 1195.994911][    C3]  process_output_block+0x13e/0x790
[ 1195.995066][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1195.995267][    C3]  n_tty_write+0x40c/0x790
[ 1195.995432][    C3]  ? __pfx_n_tty_write+0x10/0x10
[ 1195.995590][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1195.995751][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[ 1195.995916][    C3]  ? iterate_tty_write+0x8f/0x540
[ 1195.996076][    C3]  ? lock_acquire+0x32/0xc0
[ 1195.996233][    C3]  ? iterate_tty_write+0x8f/0x540
[ 1195.996394][    C3]  iterate_tty_write+0x222/0x540
[ 1195.996551][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1195.996712][    C3]  file_tty_write.constprop.0+0x1cf/0x360
[ 1195.996868][    C3]  vfs_write+0xa77/0x11d0
[ 1195.996989][    C3]  ? __pfx___lock_release+0x10/0x10
[ 1195.997142][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1195.997301][    C3]  ? __pfx_vfs_write+0x10/0x10
[ 1195.997472][    C3]  ? fdget_pos+0x4d/0x2e0
[ 1195.997593][    C3]  ? fdget_pos+0x133/0x2e0
[ 1195.997751][    C3]  ksys_write+0xf5/0x1e0
[ 1195.997870][    C3]  ? __pfx_ksys_write+0x10/0x10
[ 1195.998034][    C3]  do_syscall_64+0xc1/0x1d0
[ 1195.998190][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1195.998382][    C3] RIP: 0033:0x7f3894203957
[ 1195.998549][    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
[ 1195.999086][    C3] RSP: 002b:00007ffe247a1068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1195.999321][    C3] RAX: ffffffffffffffda RBX: 000055c273419330 RCX: 00007f3894203957
[ 1195.999550][    C3] RDX: 0000000000000001 RSI: 000055c273419330 RDI: 0000000000000001
[ 1195.999776][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1196.000006][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055c2734045e0
[ 1196.000235][    C3] R13: 000055c2733e52a0 R14: 0000000000000001 R15: 000055c2734045e0
[ 1196.000472][    C3]  </TASK>
[ 1196.000586][    C3] handlers:
[ 1196.000705][    C3] [<ffffffffb0d6cdb0>] serial8250_interrupt
[ 1196.001074][    C3] Disabling IRQ #4