[ 1223.928272][ T5008] Mirror/redirect action on
[ 1248.608598][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1248.608997][    C3] CPU: 3 UID: 0 PID: 4852 Comm: perl Not tainted 6.12.0-rc5-virtme #1
[ 1248.609258][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1248.609633][    C3] Call Trace:
[ 1248.609766][    C3]  <IRQ>
[ 1248.609859][    C3]  dump_stack_lvl+0x82/0xd0
[ 1248.610042][    C3]  __report_bad_irq+0x5f/0x180
[ 1248.610221][    C3]  note_interrupt+0x6b3/0x860
[ 1248.610403][    C3]  handle_irq_event+0x16d/0x1c0
[ 1248.610575][    C3]  handle_edge_irq+0x1fa/0xb60
[ 1248.610755][    C3]  __common_interrupt+0x82/0x170
[ 1248.610928][    C3]  common_interrupt+0x81/0xa0
[ 1248.611098][    C3]  </IRQ>
[ 1248.611189][    C3]  <TASK>
[ 1248.611278][    C3]  asm_common_interrupt+0x26/0x40
[ 1248.611447][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1248.611673][    C3] Code: 10 e8 01 22 87 fd 48 89 ef e8 19 93 87 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 88 3a 70 <74> 0e 5b 5d c3 cc cc cc cc e8 9f 65 ac fd eb dc 0f 1f 44 00 00 5b
[ 1248.612263][    C3] RSP: 0018:ffffc90000e8faa0 EFLAGS: 00000286
[ 1248.612476][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff25feb0a
[ 1248.612713][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8fc93ec1
[ 1248.612956][    C3] RBP: ffffffff938b9460 R08: 0000000000000001 R09: fffffbfff25f9bd0
[ 1248.613191][    C3] R10: ffffffff92fcde87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1248.613426][    C3] R13: 0000000000000001 R14: ffffffff938b9568 R15: 00000000ffffffff
[ 1248.613682][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1248.613899][    C3]  uart_write+0x220/0x920
[ 1248.614040][    C3]  process_output_block+0x13e/0x790
[ 1248.614215][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1248.614416][    C3]  n_tty_write+0x40c/0x790
[ 1248.614582][    C3]  ? __pfx_n_tty_write+0x10/0x10
[ 1248.614744][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1248.614902][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[ 1248.615062][    C3]  ? iterate_tty_write+0x8f/0x540
[ 1248.615220][    C3]  ? lock_acquire+0x32/0xc0
[ 1248.615373][    C3]  ? iterate_tty_write+0x8f/0x540
[ 1248.615535][    C3]  iterate_tty_write+0x222/0x540
[ 1248.615696][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1248.615868][    C3]  file_tty_write.constprop.0+0x1cf/0x360
[ 1248.616045][    C3]  vfs_write+0xa81/0x11e0
[ 1248.616178][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1248.616366][    C3]  ? __pfx_vfs_write+0x10/0x10
[ 1248.616544][    C3]  ? clockevents_program_event+0xf6/0x300
[ 1248.616733][    C3]  ? clockevents_program_event+0x1ea/0x300
[ 1248.616949][    C3]  ksys_write+0xf5/0x1e0
[ 1248.617080][    C3]  ? __pfx_ksys_write+0x10/0x10
[ 1248.617281][    C3]  do_syscall_64+0xc1/0x1d0
[ 1248.617462][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1248.617671][    C3] RIP: 0033:0x7fd405e65957
[ 1248.617847][    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
[ 1248.618438][    C3] RSP: 002b:00007fffb2751688 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1248.618694][    C3] RAX: ffffffffffffffda RBX: 00005617ff61e2b0 RCX: 00007fd405e65957
[ 1248.618947][    C3] RDX: 0000000000000001 RSI: 00005617ff61e2b0 RDI: 0000000000000001
[ 1248.619207][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1248.619457][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 00005617ff6095e0
[ 1248.619709][    C3] R13: 00005617ff5ea2a0 R14: 0000000000000001 R15: 00005617ff6095e0
[ 1248.619950][    C3]  </TASK>
[ 1248.620069][    C3] handlers:
[ 1248.620192][    C3] [<ffffffff8e570620>] serial8250_interrupt
[ 1248.620535][    C3] Disabling IRQ #4