[ 1572.481853][ C0] irq 51: nobody cared (try booting with the "irqpoll" option) [ 1572.482509][ C0] CPU: 0 UID: 0 PID: 12992 Comm: perl Not tainted 6.17.0-rc4-virtme #1 PREEMPT(full) [ 1572.482516][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1572.482519][ C0] Call Trace: [ 1572.482526][ C0] [ 1572.482528][ C0] dump_stack_lvl+0x82/0xc0 [ 1572.482565][ C0] __report_bad_irq+0x5f/0x1b0 [ 1572.482584][ C0] note_interrupt+0x661/0x7e0 [ 1572.482592][ C0] handle_irq_event+0x165/0x1c0 [ 1572.482602][ C0] handle_edge_irq+0x324/0x880 [ 1572.482611][ C0] __common_interrupt+0xa4/0x230 [ 1572.482626][ C0] common_interrupt+0xb9/0xe0 [ 1572.482634][ C0] [ 1572.482635][ C0] [ 1572.482639][ C0] asm_common_interrupt+0x26/0x40 [ 1572.482648][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x41/0x70 [ 1572.482666][ C0] Code: 74 24 10 e8 71 3d 03 fe 48 89 ef e8 99 8c 03 fe 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 fa bf f7 fd 65 8b 05 43 0e 0b 02 85 c0 74 0a 5b 5d c3 e8 f7 3f [ 1572.482669][ C0] RSP: 0018:ffffc90001b27a98 EFLAGS: 00000206 [ 1572.482678][ C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040 [ 1572.482680][ C0] RDX: 0000000000000000 RSI: ffffffff95dc604c RDI: 0000000000000001 [ 1572.482682][ C0] RBP: ffffffff9864a380 R08: 0000000000000001 R09: 0000000000000001 [ 1572.482684][ C0] R10: ffffffff96c12c17 R11: ffff888005760970 R12: 00000000ffffffff [ 1572.482686][ C0] R13: 0000000000000001 R14: ffffffff9864a488 R15: 00000000ffffffff [ 1572.482703][ C0] uart_write+0x220/0x920 [ 1572.482723][ C0] process_output_block+0x142/0x7b0 [ 1572.482734][ C0] ? _raw_spin_unlock_irqrestore+0x59/0x70 [ 1572.482741][ C0] n_tty_write+0x426/0x7c0 [ 1572.482744][ C0] ? _copy_from_iter+0x1d1/0x1340 [ 1572.482763][ C0] ? n_tty_receive_signal_char+0x110/0x110 [ 1572.482768][ C0] ? __init_waitqueue_head+0x150/0x150 [ 1572.482779][ C0] ? lock_acquire+0x104/0x160 [ 1572.482782][ C0] ? iterate_tty_write+0x91/0x530 [ 1572.482796][ C0] iterate_tty_write+0x220/0x530 [ 1572.482803][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 1572.482811][ C0] file_tty_write.constprop.0+0x1cf/0x360 [ 1572.482819][ C0] vfs_write+0xaae/0x12c0 [ 1572.482831][ C0] ? __run_timers+0x547/0x810 [ 1572.482844][ C0] ? tcp_orphan_count_sum+0x160/0x160 [ 1572.482860][ C0] ? kernel_write+0x6b0/0x6b0 [ 1572.482866][ C0] ? call_timer_fn+0x220/0x220 [ 1572.482875][ C0] ? find_held_lock+0x2b/0x80 [ 1572.482887][ C0] ksys_write+0xf7/0x1d0 [ 1572.482891][ C0] ? __ia32_sys_read+0xb0/0xb0 [ 1572.482895][ C0] ? handle_softirqs+0x352/0x610 [ 1572.482910][ C0] do_syscall_64+0xc1/0x370 [ 1572.482915][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1572.482918][ C0] RIP: 0033:0x7f328200f337 [ 1572.482923][ C0] Code: 0f 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 [ 1572.482926][ C0] RSP: 002b:00007ffe4b95b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1572.482931][ C0] RAX: ffffffffffffffda RBX: 000056220df71420 RCX: 00007f328200f337 [ 1572.482934][ C0] RDX: 0000000000000001 RSI: 000056220df71420 RDI: 0000000000000001 [ 1572.482937][ C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 1572.482939][ C0] R10: 0000000000000001 R11: 0000000000000246 R12: 000056220df5c600 [ 1572.482942][ C0] R13: 000056220df3d2a0 R14: 0000000000000001 R15: 000056220df5c600 [ 1572.482957][ C0] [ 1572.482959][ C0] handlers: [ 1572.500731][ C0] [] serial8250_interrupt [ 1572.501267][ C0] Disabling IRQ #51