[ 1093.760106][ C0] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1336019485 wd_nsec: 1336019044 [ 1113.317444][ C0] irq 51: nobody cared (try booting with the "irqpoll" option) [ 1113.318035][ C0] CPU: 0 UID: 0 PID: 17791 Comm: perl Not tainted 6.19.0-rc6-virtme #1 PREEMPT(full) [ 1113.318039][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1113.318041][ C0] Call Trace: [ 1113.318043][ C0] [ 1113.318044][ C0] dump_stack_lvl+0x6f/0xa0 [ 1113.318053][ C0] __report_bad_irq+0x66/0x161 [ 1113.318058][ C0] note_interrupt.cold+0x21/0xe7 [ 1113.318059][ C0] ? serial8250_get_port+0x50/0x50 [ 1113.318068][ C0] ? poll_spurious_irqs+0x140/0x140 [ 1113.318075][ C0] handle_irq_event+0x166/0x1c0 [ 1113.318078][ C0] handle_edge_irq+0x2ec/0x880 [ 1113.318083][ C0] __common_interrupt+0xae/0x270 [ 1113.318086][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x3d0 [ 1113.318089][ C0] common_interrupt+0xb0/0xf0 [ 1113.318094][ C0] [ 1113.318094][ C0] [ 1113.318096][ C0] asm_common_interrupt+0x26/0x40 [ 1113.318098][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80 [ 1113.318102][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 f1 d8 de fd 48 89 df e8 59 2a df fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 f0 61 d2 fd 65 8b 05 29 64 05 02 85 c0 74 12 5b [ 1113.318104][ C0] RSP: 0018:ffa00000035a7a70 EFLAGS: 00000246 [ 1113.318107][ C0] RAX: 0000000000000082 RBX: ffffffffac790520 RCX: ffffffffa96f8c13 [ 1113.318109][ C0] RDX: ff110000156122c0 RSI: ffffffffa9fb55c3 RDI: ffffffffa9a6b280 [ 1113.318110][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000001 [ 1113.318110][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffac790628 [ 1113.318111][ C0] R13: 0000000000000001 R14: ffffffffac790660 R15: ff11000009bc2800 [ 1113.318115][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 1113.318119][ C0] uart_write+0x21d/0x940 [ 1113.318124][ C0] process_output_block+0x117/0x6e0 [ 1113.318129][ C0] n_tty_write+0x3a8/0x8f0 [ 1113.318131][ C0] ? _copy_from_iter+0x1b6/0x1580 [ 1113.318137][ C0] ? n_tty_receive_signal_char+0x110/0x110 [ 1113.318139][ C0] ? _mutex_trylock_nest_lock+0x21a/0x340 [ 1113.318141][ C0] ? __init_waitqueue_head+0x160/0x160 [ 1113.318145][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 1113.318148][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 1113.318152][ C0] iterate_tty_write+0x27d/0x550 [ 1113.318155][ C0] ? tty_ldisc_ref_wait+0x28/0x80 [ 1113.318158][ C0] file_tty_write.isra.0+0x1a2/0x240 [ 1113.318161][ C0] ? redirected_tty_write+0xd0/0xd0 [ 1113.318163][ C0] new_sync_write+0x308/0x6f0 [ 1113.318166][ C0] ? new_sync_read+0x3bb/0x6f0 [ 1113.318169][ C0] ? new_sync_read+0x6f0/0x6f0 [ 1113.318170][ C0] ? generic_atomic_write_valid+0x150/0x150 [ 1113.318174][ C0] ? __lock_release.isra.0+0x59/0x170 [ 1113.318180][ C0] vfs_write+0x65e/0xbb0 [ 1113.318183][ C0] ? vfs_read+0x3cc/0x790 [ 1113.318186][ C0] ksys_write+0xff/0x200 [ 1113.318189][ C0] ? __ia32_sys_read+0xc0/0xc0 [ 1113.318192][ C0] ? rcu_is_watching+0x15/0xd0 [ 1113.318196][ C0] do_syscall_64+0xbd/0xfc0 [ 1113.318198][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1113.318200][ C0] RIP: 0033:0x7f99a7061c5e [ 1113.318204][ 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 [ 1113.318205][ C0] RSP: 002b:00007ffc7b36af40 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 1113.318207][ C0] RAX: ffffffffffffffda RBX: 0000558ae2069380 RCX: 00007f99a7061c5e [ 1113.318207][ C0] RDX: 0000000000000001 RSI: 0000558ae2069380 RDI: 0000000000000001 [ 1113.318208][ C0] RBP: 00007ffc7b36af50 R08: 0000000000000000 R09: 0000000000000000 [ 1113.318209][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 1113.318209][ C0] R13: 0000558ae202a010 R14: 0000000000000001 R15: 0000558ae2069380 [ 1113.318215][ C0] [ 1113.318216][ C0] handlers: [ 1113.327180][ C0] [] serial8250_interrupt [ 1113.327645][ C0] Disabling IRQ #51