[  991.404744][    C3] irq 4: nobody cared (try booting with the "irqpoll" option)
[  991.405129][    C3] CPU: 3 PID: 3453 Comm: perl Not tainted 6.10.0-rc4-virtme #1
[  991.405370][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  991.405755][    C3] Call Trace:
[  991.405881][    C3]  <IRQ>
[  991.406035][    C3]  dump_stack_lvl+0x82/0xd0
[  991.406206][    C3]  __report_bad_irq+0x5f/0x180
[  991.406376][    C3]  note_interrupt+0x6b3/0x860
[  991.406542][    C3]  handle_irq_event+0x16d/0x1c0
[  991.406698][    C3]  handle_edge_irq+0x1fa/0xb60
[  991.406879][    C3]  __common_interrupt+0x82/0x170
[  991.407039][    C3]  common_interrupt+0x7e/0x90
[  991.407200][    C3]  </IRQ>
[  991.407282][    C3]  <TASK>
[  991.407366][    C3]  asm_common_interrupt+0x26/0x40
[  991.407535][    C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[  991.407734][    C3] Code: 10 e8 e1 3c 92 fd 48 89 ef e8 59 ad 92 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 b5 9c 66 45 <74> 0e 5b 5d c3 cc cc cc cc e8 af 1e b6 fd eb dc 0f 1f 44 00 00 5b
[  991.408302][    C3] RSP: 0018:ffffc90002d3fab8 EFLAGS: 00000286
[  991.408507][    C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff7b70333
[  991.408737][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffba9d2ba1
[  991.408970][    C3] RBP: ffffffffbe443020 R08: 0000000000000001 R09: fffffbfff7b6b4a8
[  991.409203][    C3] R10: ffffffffbdb5a547 R11: 0000000000000000 R12: ffffffffbe443128
[  991.409445][    C3] R13: ffff88801e0aa800 R14: ffffffffbe443020 R15: 0000000000000282
[  991.409690][    C3]  ? _raw_spin_unlock_irqrestore+0x51/0x70
[  991.409901][    C3]  uart_write+0x13e/0x320
[  991.410029][    C3]  process_output_block+0x13e/0x790
[  991.410184][    C3]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[  991.410388][    C3]  n_tty_write+0x412/0x7a0
[  991.410554][    C3]  ? __pfx_n_tty_write+0x10/0x10
[  991.410707][    C3]  ? trace_lock_acquire+0x14d/0x1f0
[  991.410860][    C3]  ? __pfx_woken_wake_function+0x10/0x10
[  991.411021][    C3]  ? iterate_tty_write+0x95/0x540
[  991.411177][    C3]  ? lock_acquire+0x32/0xc0
[  991.411332][    C3]  ? iterate_tty_write+0x95/0x540
[  991.411501][    C3]  iterate_tty_write+0x228/0x540
[  991.411661][    C3]  ? tty_ldisc_ref_wait+0x28/0x80
[  991.411825][    C3]  file_tty_write.constprop.0+0x1db/0x370
[  991.411982][    C3]  vfs_write+0xa18/0x10b0
[  991.412106][    C3]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  991.412265][    C3]  ? __pfx_vfs_write+0x10/0x10
[  991.412429][    C3]  ? clockevents_program_event+0xf6/0x300
[  991.412598][    C3]  ? __fget_light+0x53/0x1e0
[  991.412763][    C3]  ? clockevents_program_event+0x1ea/0x300
[  991.412964][    C3]  ksys_write+0xf5/0x1e0
[  991.413085][    C3]  ? __pfx_ksys_write+0x10/0x10
[  991.413246][    C3]  do_syscall_64+0xc1/0x1d0
[  991.413409][    C3]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  991.413597][    C3] RIP: 0033:0x7f0a6b3c4957
[  991.413755][    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
[  991.414305][    C3] RSP: 002b:00007ffd4ec87ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  991.414551][    C3] RAX: ffffffffffffffda RBX: 000055c33978c310 RCX: 00007f0a6b3c4957
[  991.414788][    C3] RDX: 0000000000000001 RSI: 000055c33978c310 RDI: 0000000000000001
[  991.415022][    C3] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000
[  991.415272][    C3] R10: 0000000000000001 R11: 0000000000000246 R12: 000055c3397785c0
[  991.415503][    C3] R13: 000055c3397592a0 R14: 0000000000000001 R15: 000055c3397785c0
[  991.415745][    C3]  </TASK>
[  991.415859][    C3] handlers:
[  991.415976][    C3] [<ffffffffb92f6ea0>] serial8250_interrupt
[  991.416313][    C3] Disabling IRQ #4