[ 501.344313][ T3454] Mirror/redirect action on [ 644.204186][ C0] irq 51: nobody cared (try booting with the "irqpoll" option) [ 644.204671][ C0] CPU: 0 UID: 0 PID: 3253 Comm: perl Not tainted 6.19.0-rc3-virtme #1 PREEMPT(full) [ 644.204676][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 644.204678][ C0] Call Trace: [ 644.204680][ C0] [ 644.204682][ C0] dump_stack_lvl+0x6f/0xa0 [ 644.204694][ C0] __report_bad_irq+0x66/0x161 [ 644.204701][ C0] note_interrupt.cold+0x21/0xe7 [ 644.204704][ C0] ? serial8250_get_port+0x50/0x50 [ 644.204709][ C0] ? poll_spurious_irqs+0x140/0x140 [ 644.204719][ C0] handle_irq_event+0x166/0x1c0 [ 644.204723][ C0] handle_edge_irq+0x2ec/0x880 [ 644.204731][ C0] __common_interrupt+0xae/0x270 [ 644.204735][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x3d0 [ 644.204740][ C0] common_interrupt+0xb0/0xf0 [ 644.204745][ C0] [ 644.204746][ C0] [ 644.204749][ C0] asm_common_interrupt+0x26/0x40 [ 644.204753][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80 [ 644.204758][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 91 77 df fd 48 89 df e8 f9 c8 df fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 30 1f d3 fd 65 8b 05 c9 01 06 02 85 c0 74 12 5b [ 644.204760][ C0] RSP: 0018:ffa000000234fa70 EFLAGS: 00000246 [ 644.204765][ C0] RAX: 0000000000000082 RBX: ffffffff8cd8d4e0 RCX: ffffffff89cebe73 [ 644.204767][ C0] RDX: ff11000005278040 RSI: ffffffff8a5b3b89 RDI: ffffffff8a06ae00 [ 644.204768][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001 [ 644.204770][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff8cd8d5e8 [ 644.204771][ C0] R13: 0000000000000001 R14: ffffffff8cd8d620 R15: ff11000008fb5800 [ 644.204778][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 644.204787][ C0] uart_write+0x21d/0x940 [ 644.204795][ C0] process_output_block+0x117/0x6e0 [ 644.204803][ C0] n_tty_write+0x3a8/0x8f0 [ 644.204806][ C0] ? _copy_from_iter+0x1b6/0x1580 [ 644.204815][ C0] ? n_tty_receive_signal_char+0x110/0x110 [ 644.204818][ C0] ? _mutex_trylock_nest_lock+0x21a/0x340 [ 644.204822][ C0] ? __init_waitqueue_head+0x160/0x160 [ 644.204827][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 644.204830][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 644.204837][ C0] iterate_tty_write+0x27d/0x550 [ 644.204843][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 644.204848][ C0] file_tty_write.isra.0+0x1a2/0x240 [ 644.204852][ C0] ? redirected_tty_write+0xd0/0xd0 [ 644.204855][ C0] new_sync_write+0x308/0x6f0 [ 644.204859][ C0] ? new_sync_read+0x3bb/0x6f0 [ 644.204864][ C0] ? new_sync_read+0x6f0/0x6f0 [ 644.204867][ C0] ? generic_atomic_write_valid+0x150/0x150 [ 644.204873][ C0] ? __lock_release.isra.0+0x59/0x170 [ 644.204883][ C0] vfs_write+0x65e/0xbb0 [ 644.204887][ C0] ? vfs_read+0x3cc/0x790 [ 644.204893][ C0] ksys_write+0xff/0x200 [ 644.204897][ C0] ? __ia32_sys_read+0xc0/0xc0 [ 644.204902][ C0] ? rcu_is_watching+0x15/0xd0 [ 644.204908][ C0] do_syscall_64+0xbd/0xfc0 [ 644.204913][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 644.204915][ C0] RIP: 0033:0x7f8009e7bc5e [ 644.204920][ 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 [ 644.204921][ C0] RSP: 002b:00007ffdc98fe0d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 644.204924][ C0] RAX: ffffffffffffffda RBX: 000055b7fbca5420 RCX: 00007f8009e7bc5e [ 644.204925][ C0] RDX: 0000000000000001 RSI: 000055b7fbca5420 RDI: 0000000000000001 [ 644.204927][ C0] RBP: 00007ffdc98fe0e0 R08: 0000000000000000 R09: 0000000000000000 [ 644.204928][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 644.204929][ C0] R13: 000055b7fbc66010 R14: 0000000000000001 R15: 000055b7fbca5420 [ 644.204941][ C0] [ 644.204942][ C0] handlers: [ 644.219133][ C0] [] serial8250_interrupt [ 644.219555][ C0] Disabling IRQ #51