[ 815.338725][ C0] irq 51: nobody cared (try booting with the "irqpoll" option) [ 815.339081][ C0] CPU: 0 UID: 0 PID: 22412 Comm: perl Not tainted 6.19.0-rc7-virtme #1 PREEMPT(full) [ 815.339085][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 815.339087][ C0] Call Trace: [ 815.339089][ C0] [ 815.339090][ C0] dump_stack_lvl+0x6f/0xa0 [ 815.339100][ C0] __report_bad_irq+0x66/0x161 [ 815.339105][ C0] note_interrupt.cold+0x21/0xe7 [ 815.339107][ C0] ? serial8250_get_port+0x50/0x50 [ 815.339112][ C0] ? poll_spurious_irqs+0x140/0x140 [ 815.339118][ C0] handle_irq_event+0x166/0x1c0 [ 815.339121][ C0] handle_edge_irq+0x2ec/0x880 [ 815.339125][ C0] __common_interrupt+0xae/0x270 [ 815.339129][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x3d0 [ 815.339131][ C0] common_interrupt+0xb0/0xf0 [ 815.339136][ C0] [ 815.339137][ C0] [ 815.339138][ C0] asm_common_interrupt+0x26/0x40 [ 815.339140][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80 [ 815.339144][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 31 43 de fd 48 89 df e8 99 94 de fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 f0 d1 d1 fd 65 8b 05 29 04 05 02 85 c0 74 12 5b [ 815.339145][ C0] RSP: 0018:ffa000000472fa70 EFLAGS: 00000246 [ 815.339149][ C0] RAX: 0000000000000082 RBX: ffffffff9b993520 RCX: ffffffff98901c13 [ 815.339150][ C0] RDX: ff110000124722c0 RSI: ffffffff991b685f RDI: ffffffff98c6b280 [ 815.339151][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001 [ 815.339152][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff9b993628 [ 815.339152][ C0] R13: 0000000000000001 R14: ffffffff9b993660 R15: ff11000008bff000 [ 815.339156][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 815.339160][ C0] uart_write+0x21d/0x940 [ 815.339164][ C0] process_output_block+0x117/0x6e0 [ 815.339169][ C0] n_tty_write+0x3a8/0x8f0 [ 815.339171][ C0] ? _copy_from_iter+0x1b6/0x1580 [ 815.339177][ C0] ? n_tty_receive_signal_char+0x110/0x110 [ 815.339179][ C0] ? _mutex_trylock_nest_lock+0x21a/0x340 [ 815.339182][ C0] ? __init_waitqueue_head+0x160/0x160 [ 815.339185][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 815.339188][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 815.339192][ C0] iterate_tty_write+0x27d/0x550 [ 815.339195][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 815.339199][ C0] file_tty_write.isra.0+0x1a2/0x240 [ 815.339215][ C0] ? redirected_tty_write+0xd0/0xd0 [ 815.339217][ C0] new_sync_write+0x308/0x6f0 [ 815.339221][ C0] ? new_sync_read+0x3bb/0x6f0 [ 815.339224][ C0] ? new_sync_read+0x6f0/0x6f0 [ 815.339226][ C0] ? generic_atomic_write_valid+0x150/0x150 [ 815.339229][ C0] ? __lock_release.isra.0+0x59/0x170 [ 815.339235][ C0] vfs_write+0x65e/0xbb0 [ 815.339237][ C0] ? vfs_read+0x3cc/0x790 [ 815.339241][ C0] ksys_write+0xff/0x200 [ 815.339244][ C0] ? __ia32_sys_read+0xc0/0xc0 [ 815.339247][ C0] ? rcu_is_watching+0x15/0xd0 [ 815.339251][ C0] do_syscall_64+0xbd/0xfc0 [ 815.339254][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 815.339255][ C0] RIP: 0033:0x7f7da7a68c5e [ 815.339259][ C0] Code: 4d 89 d8 e8 34 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa [ 815.339260][ C0] RSP: 002b:00007ffcfee98ed0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 815.339261][ C0] RAX: ffffffffffffffda RBX: 0000558f23edd360 RCX: 00007f7da7a68c5e [ 815.339262][ C0] RDX: 0000000000000001 RSI: 0000558f23edd360 RDI: 0000000000000001 [ 815.339263][ C0] RBP: 00007ffcfee98ee0 R08: 0000000000000000 R09: 0000000000000000 [ 815.339264][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 815.339264][ C0] R13: 0000558f23e9e010 R14: 0000000000000001 R15: 0000558f23edd360 [ 815.339270][ C0] [ 815.339271][ C0] handlers: [ 815.348837][ C0] [] serial8250_interrupt [ 815.349443][ C0] Disabling IRQ #51