[ 818.321040][ C0] irq 51: nobody cared (try booting with the "irqpoll" option) [ 818.321389][ C0] CPU: 0 UID: 0 PID: 9752 Comm: perl Not tainted 6.19.0-rc4-virtme #1 PREEMPT(full) [ 818.321392][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 818.321394][ C0] Call Trace: [ 818.321395][ C0] [ 818.321397][ C0] dump_stack_lvl+0x6f/0xa0 [ 818.321406][ C0] __report_bad_irq+0x66/0x161 [ 818.321411][ C0] note_interrupt.cold+0x21/0xe7 [ 818.321413][ C0] ? serial8250_get_port+0x50/0x50 [ 818.321417][ C0] ? poll_spurious_irqs+0x140/0x140 [ 818.321423][ C0] handle_irq_event+0x166/0x1c0 [ 818.321426][ C0] handle_edge_irq+0x2ec/0x880 [ 818.321430][ C0] __common_interrupt+0xae/0x270 [ 818.321433][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x3d0 [ 818.321436][ C0] common_interrupt+0xb0/0xf0 [ 818.321440][ C0] [ 818.321441][ C0] [ 818.321442][ C0] asm_common_interrupt+0x26/0x40 [ 818.321444][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80 [ 818.321448][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 91 37 df fd 48 89 df e8 f9 88 df fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 30 df d2 fd 65 8b 05 c9 e1 05 02 85 c0 74 12 5b [ 818.321450][ C0] RSP: 0018:ffa0000002cf7a70 EFLAGS: 00000246 [ 818.321453][ C0] RAX: 0000000000000082 RBX: ffffffff95f8f520 RCX: ffffffff92eefe73 [ 818.321455][ C0] RDX: ff1100000d0722c0 RSI: ffffffff937b53ee RDI: ffffffff9326ae80 [ 818.321456][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001 [ 818.321456][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff95f8f628 [ 818.321457][ C0] R13: 0000000000000001 R14: ffffffff95f8f660 R15: ff11000004d04000 [ 818.321460][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 818.321465][ C0] uart_write+0x21d/0x940 [ 818.321469][ C0] process_output_block+0x117/0x6e0 [ 818.321474][ C0] n_tty_write+0x3a8/0x8f0 [ 818.321476][ C0] ? _copy_from_iter+0x1b6/0x1580 [ 818.321482][ C0] ? n_tty_receive_signal_char+0x110/0x110 [ 818.321484][ C0] ? _mutex_trylock_nest_lock+0x21a/0x340 [ 818.321486][ C0] ? __init_waitqueue_head+0x160/0x160 [ 818.321490][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 818.321493][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 818.321497][ C0] iterate_tty_write+0x27d/0x550 [ 818.321500][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 818.321504][ C0] file_tty_write.isra.0+0x1a2/0x240 [ 818.321506][ C0] ? redirected_tty_write+0xd0/0xd0 [ 818.321508][ C0] new_sync_write+0x308/0x6f0 [ 818.321511][ C0] ? new_sync_read+0x3bb/0x6f0 [ 818.321514][ C0] ? new_sync_read+0x6f0/0x6f0 [ 818.321516][ C0] ? generic_atomic_write_valid+0x150/0x150 [ 818.321520][ C0] ? __lock_release.isra.0+0x59/0x170 [ 818.321525][ C0] vfs_write+0x65e/0xbb0 [ 818.321528][ C0] ? vfs_read+0x3cc/0x790 [ 818.321532][ C0] ksys_write+0xff/0x200 [ 818.321534][ C0] ? __ia32_sys_read+0xc0/0xc0 [ 818.321537][ C0] ? rcu_is_watching+0x15/0xd0 [ 818.321541][ C0] do_syscall_64+0xbd/0xfc0 [ 818.321544][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 818.321545][ C0] RIP: 0033:0x7f2c419dcc5e [ 818.321549][ C0] Code: 4d 89 d8 e8 14 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 [ 818.321550][ C0] RSP: 002b:00007ffe50405390 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 818.321551][ C0] RAX: ffffffffffffffda RBX: 0000559c91482460 RCX: 00007f2c419dcc5e [ 818.321552][ C0] RDX: 0000000000000001 RSI: 0000559c91482460 RDI: 0000000000000001 [ 818.321553][ C0] RBP: 00007ffe504053a0 R08: 0000000000000000 R09: 0000000000000000 [ 818.321554][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 818.321554][ C0] R13: 0000559c91443010 R14: 0000000000000001 R15: 0000559c91482460 [ 818.321560][ C0] [ 818.321561][ C0] handlers: [ 818.330656][ C0] [] serial8250_interrupt [ 818.330868][ C0] Disabling IRQ #51