[ 1353.819071][ T7436] Mirror/redirect action on
[ 1377.510651][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[ 1377.511027][    C3] CPU: 3 UID: 0 PID: 7280 Comm: perl Not tainted 6.12.0-rc3-virtme #1
[ 1377.511304][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1377.511671][    C3] Call Trace:
[ 1377.511802][    C3]  <IRQ>
[ 1377.511895][    C3]  dump_stack_lvl+0x82/0xd0
[ 1377.512072][    C3]  __report_bad_irq+0x5f/0x180
[ 1377.512239][    C3]  note_interrupt+0x6b3/0x860
[ 1377.512402][    C3]  handle_irq_event+0x16d/0x1c0
[ 1377.512560][    C3]  handle_edge_irq+0x1fa/0xb60
[ 1377.512725][    C3]  __common_interrupt+0x82/0x170
[ 1377.512888][    C3]  common_interrupt+0x81/0xa0
[ 1377.513046][    C3]  </IRQ>
[ 1377.513130][    C3]  <TASK>
[ 1377.513214][    C3]  asm_common_interrupt+0x26/0x40
[ 1377.513377][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 1377.513587][    C3] Code: 10 e8 a1 58 87 fd 48 89 ef e8 b9 c9 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 95 c4 1a 77 <74> 0e 5b 5d c3 cc cc cc cc e8 5f 9b ac fd eb dc 0f 1f 44 00 00 5b
[ 1377.514284][    C3] RSP: 0018:ffffc90002b7faa0 EFLAGS: 00000286
[ 1377.514491][    C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff183f2bf
[ 1377.514731][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88e90481
[ 1377.514970][    C3] RBP: ffffffff8cabd3e0 R08: 0000000000000001 R09: fffffbfff183a3d0
[ 1377.515208][    C3] R10: ffffffff8c1d1e87 R11: 0000000000000000 R12: 00000000ffffffff
[ 1377.515439][    C3] R13: 0000000000000001 R14: ffffffff8cabd4e8 R15: 00000000ffffffff
[ 1377.515688][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 1377.515898][    C3]  uart_write+0x220/0x920
[ 1377.516036][    C3]  process_output_block+0x13e/0x790
[ 1377.516198][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1377.516399][    C3]  n_tty_write+0x40c/0x790
[ 1377.516563][    C3]  ? __pfx_n_tty_write+0x10/0x10
[ 1377.516721][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[ 1377.516879][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[ 1377.517046][    C3]  ? iterate_tty_write+0x8f/0x540
[ 1377.517202][    C3]  ? lock_acquire+0x32/0xc0
[ 1377.517378][    C3]  ? iterate_tty_write+0x8f/0x540
[ 1377.517546][    C3]  iterate_tty_write+0x222/0x540
[ 1377.517716][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[ 1377.517883][    C3]  file_tty_write.constprop.0+0x1cf/0x360
[ 1377.518059][    C3]  vfs_write+0xa77/0x11d0
[ 1377.518182][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1377.518340][    C3]  ? __pfx_vfs_write+0x10/0x10
[ 1377.518500][    C3]  ? clockevents_program_event+0xf6/0x300
[ 1377.518669][    C3]  ? clockevents_program_event+0x1ea/0x300
[ 1377.518867][    C3]  ksys_write+0xf5/0x1e0
[ 1377.518987][    C3]  ? __pfx_ksys_write+0x10/0x10
[ 1377.519160][    C3]  do_syscall_64+0xc1/0x1d0
[ 1377.519328][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1377.519529][    C3] RIP: 0033:0x7f47be017957
[ 1377.519698][    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
[ 1377.520240][    C3] RSP: 002b:00007fffe940bda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 1377.520487][    C3] RAX: ffffffffffffffda RBX: 0000563e85adf1f0 RCX: 00007f47be017957
[ 1377.520726][    C3] RDX: 0000000000000001 RSI: 0000563e85adf1f0 RDI: 0000000000000001
[ 1377.520963][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[ 1377.521196][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 0000563e85aca5e0
[ 1377.521432][    C3] R13: 0000563e85aab2a0 R14: 0000000000000001 R15: 0000563e85aca5e0
[ 1377.521674][    C3]  </TASK>
[ 1377.521793][    C3] handlers:
[ 1377.521914][    C3] [<ffffffff8776d670>] serial8250_interrupt
[ 1377.522263][    C3] Disabling IRQ #4