[ 1699.597809][T11993] link1: entered promiscuous mode
[ 1704.721949][T11993] link1: left promiscuous mode
[ 1705.718013][T12029] link1: entered promiscuous mode
[ 1711.091267][T12029] link1: left promiscuous mode
[ 1712.053889][T12069] link1: entered promiscuous mode
[ 1717.298706][T12069] link1: left promiscuous mode
[ 1718.282827][T12107] link1: entered promiscuous mode
[ 1723.651547][T12116] netperf (12116) used greatest stack depth: 21664 bytes left
[ 1723.652499][T12107] link1: left promiscuous mode
[ 1724.619848][T12147] link1: entered promiscuous mode
[ 1729.739564][T12147] link1: left promiscuous mode
[ 1730.728715][T12183] link1: entered promiscuous mode
[ 1736.079007][T12183] link1: left promiscuous mode
[ 1737.051561][T12223] link1: entered promiscuous mode
[ 1742.168406][T12223] link1: left promiscuous mode
[ 1743.150832][T12259] link1: entered promiscuous mode
[ 1748.529691][T12259] link1: left promiscuous mode
[ 1769.530823][ C0] irq 52: nobody cared (try booting with the "irqpoll" option)
[ 1769.531076][ C0] CPU: 0 UID: 0 PID: 11951 Comm: perl Not tainted 7.2.0-rc7-virtme #1 PREEMPT(full)
[ 1769.531080][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1769.531081][ C0] Call Trace:
[ 1769.531083][ C0]
[ 1769.531084][ C0] dump_stack_lvl+0x6f/0xa0
[ 1769.531093][ C0] __report_bad_irq+0x66/0x14a
[ 1769.531098][ C0] note_interrupt.cold+0x29/0xef
[ 1769.531100][ C0] ? serial_base_port_exit+0x20/0x20
[ 1769.531105][ C0] ? poll_spurious_irqs+0x160/0x160
[ 1769.531111][ C0] handle_irq_event+0x166/0x1c0
[ 1769.531114][ C0] handle_edge_irq+0x2f8/0x8a0
[ 1769.531118][ C0] __common_interrupt+0xae/0x270
[ 1769.531121][ C0] ? __sysvec_apic_timer_interrupt+0x15f/0x480
[ 1769.531124][ C0] common_interrupt+0xb0/0xf0
[ 1769.531128][ C0]
[ 1769.531129][ C0]
[ 1769.531129][ C0] ? rpm_resume+0x1060/0x1060
[ 1769.531133][ C0] asm_common_interrupt+0x26/0x40
[ 1769.531135][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x36/0x80
[ 1769.531139][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 81 3a 7f fd 48 89 df e8 79 90 7f fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 90 70 71 fd 65 8b 05 89 0b 6b 02 85 c0 74 12 5b
[ 1769.531141][ C0] RSP: 0018:ffa000000459fa78 EFLAGS: 00000246
[ 1769.531144][ C0] RAX: 0000000000000092 RBX: ffffffff89ac4a40 RCX: ffffffff857684b3
[ 1769.531145][ C0] RDX: ff11000018c62380 RSI: ffffffff860e45bf RDI: ffffffff85a819e0
[ 1769.531146][ C0] RBP: 0000000000000282 R08: 0000000000000000 R09: 0000000000000000
[ 1769.531147][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff89ac4b48
[ 1769.531147][ C0] R13: 0000000000000001 R14: ffffffff89ac4b80 R15: ff1100000a8fcc00
[ 1769.531151][ C0] ? _raw_spin_unlock_irqrestore+0x53/0x80
[ 1769.531156][ C0] uart_write+0x231/0x990
[ 1769.531160][ C0] process_output_block+0x113/0x6d0
[ 1769.531165][ C0] n_tty_write+0x3b4/0x8f0
[ 1769.531169][ C0] ? n_tty_receive_signal_char+0x110/0x110
[ 1769.531171][ C0] ? _mutex_trylock_nest_lock+0x235/0x390
[ 1769.531173][ C0] ? __init_waitqueue_head+0x160/0x160
[ 1769.531177][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 1769.531179][ C0] ? tty_ldisc_ref_wait+0x28/0x80
[ 1769.531183][ C0] iterate_tty_write+0x291/0x590
[ 1769.531186][ C0] ? tty_ldisc_ref_wait+0x28/0x80
[ 1769.531189][ C0] file_tty_write.isra.0+0x1bd/0x290
[ 1769.531191][ C0] ? redirected_tty_write+0xd0/0xd0
[ 1769.531197][ C0] new_sync_write+0x33e/0x760
[ 1769.531202][ C0] ? lock_acquire.part.0+0xbc/0x260
[ 1769.531203][ C0] ? new_sync_read+0x750/0x750
[ 1769.531205][ C0] ? fsnotify+0x3610/0x3610
[ 1769.531213][ C0] vfs_write+0x657/0x970
[ 1769.531217][ C0] ksys_write+0x116/0x250
[ 1769.531219][ C0] ? __ia32_sys_read+0xc0/0xc0
[ 1769.531220][ C0] ? __mutex_unlock_slowpath+0x14f/0x740
[ 1769.531222][ C0] ? rcu_is_watching+0x15/0xd0
[ 1769.531227][ C0] do_syscall_64+0x117/0x590
[ 1769.531229][ C0] ? irq_exit_rcu+0x1a/0x30
[ 1769.531233][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 1769.531234][ C0] RIP: 0033:0x7fbb45d7654e
[ 1769.531238][ C0] Code: 4d 89 d8 e8 b4 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[ 1769.531239][ C0] RSP: 002b:00007ffe5d6f3610 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1769.531240][ C0] RAX: ffffffffffffffda RBX: 000056313768f1e0 RCX: 00007fbb45d7654e
[ 1769.531241][ C0] RDX: 0000000000000001 RSI: 000056313768f1e0 RDI: 0000000000000001
[ 1769.531242][ C0] RBP: 00007ffe5d6f3620 R08: 0000000000000000 R09: 0000000000000000
[ 1769.531243][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[ 1769.531243][ C0] R13: 0000563137656010 R14: 0000000000000001 R15: 000056313768f1e0
[ 1769.531249][ C0]
[ 1769.531250][ C0] handlers:
[ 1769.539420][ C0] [] serial8250_interrupt
[ 1769.539652][ C0] Disabling IRQ #52