2017/08/29 11:57:04 fuzzer started 2017/08/29 11:57:04 dialing manager at 10.0.2.10:39682 syzkaller login: [ 29.151161] NETDEV WATCHDOG: eth0 (e1000): transmit queue 0 timed out [ 29.151996] ------------[ cut here ]------------ [ 29.152598] WARNING: CPU: 2 PID: 0 at net/sched/sch_generic.c:320 dev_watchdog+0x821/0xa10 [ 29.153445] Kernel panic - not syncing: panic_on_warn set ... [ 29.153445] [ 29.154174] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.13.0-rc7-next-20170829+ #11 [ 29.155782] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 29.156504] Call Trace: [ 29.156739] [ 29.156945] dump_stack+0x194/0x257 [ 29.157285] ? arch_local_irq_restore+0x53/0x53 [ 29.157719] panic+0x1e4/0x41c [ 29.158010] ? refcount_error_report+0x214/0x214 [ 29.158438] ? show_regs_print_info+0x65/0x65 [ 29.158863] ? dev_watchdog+0x821/0xa10 [ 29.159378] __warn+0x1c4/0x1e0 [ 29.159994] ? dev_watchdog+0x821/0xa10 [ 29.160766] report_bug+0x211/0x2d0 [ 29.161512] fixup_bug+0x40/0x90 [ 29.162154] do_trap+0x260/0x390 [ 29.162804] do_error_trap+0x120/0x390 [ 29.163221] ? vprintk_emit+0x49b/0x590 [ 29.163680] ? do_trap+0x390/0x390 [ 29.164081] ? dev_watchdog+0x821/0xa10 [ 29.164534] ? vprintk_emit+0x3ea/0x590 [ 29.164972] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.165601] do_invalid_op+0x1b/0x20 [ 29.166253] invalid_op+0x18/0x20 [ 29.166912] RIP: 0010:dev_watchdog+0x821/0xa10 [ 29.167804] RSP: 0018:ffff88006de077b8 EFLAGS: 00010286 [ 29.168821] RAX: 0000000000000039 RBX: ffff88003a894cc0 RCX: 0000000000000000 [ 29.170201] RDX: 0000000000000039 RSI: 1ffff1000dbc0eb7 RDI: ffffed000dbc0eeb [ 29.171466] RBP: ffff88006de078b8 R08: ffff88006de06ea8 R09: 0000000000000000 [ 29.173400] R10: ffff88006dac6040 R11: 0000000000000000 R12: 0000000000000000 [ 29.174976] R13: dffffc0000000000 R14: ffff88003a8951a0 R15: ffff88003ae26580 [ 29.177396] ? dev_watchdog+0x821/0xa10 [ 29.178241] ? qdisc_rcu_free+0x110/0x110 [ 29.179189] ? __lock_is_held+0xbc/0x140 [ 29.180092] call_timer_fn+0x246/0x850 [ 29.180934] ? qdisc_rcu_free+0x110/0x110 [ 29.181850] ? __next_timer_interrupt+0x150/0x150 [ 29.182908] ? lock_downgrade+0x990/0x990 [ 29.183818] ? update_max_interval+0x60/0x60 [ 29.184757] ? __run_timers+0x1ce/0xb90 [ 29.185659] ? do_raw_spin_trylock+0x190/0x190 [ 29.186641] ? __lock_is_held+0xbc/0x140 [ 29.187525] ? qdisc_rcu_free+0x110/0x110 [ 29.188405] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 29.189512] ? qdisc_rcu_free+0x110/0x110 [ 29.190460] __run_timers+0x7fd/0xb90 [ 29.191325] ? del_timer_sync+0x240/0x240 [ 29.192213] ? lock_acquire+0x1d5/0x580 [ 29.193036] ? __hrtimer_run_queues+0x385/0xe10 [ 29.193836] ? find_held_lock+0x39/0x1d0 [ 29.194395] ? lock_downgrade+0x990/0x990 [ 29.194911] ? lock_acquire+0x1d5/0x580 [ 29.195466] ? clockevents_program_event+0x163/0x2e0 [ 29.196058] ? pvclock_read_flags+0x160/0x160 [ 29.196591] ? rcu_pm_notify+0xc0/0xc0 [ 29.197040] run_timer_softirq+0x4c/0xb0 [ 29.197582] __do_softirq+0x2bd/0xbd4 [ 29.198536] ? __softirqentry_text_start+0x8/0x8 [ 29.199063] ? native_apic_msr_write+0x5c/0x80 [ 29.199722] ? lapic_next_event+0x5a/0x90 [ 29.200221] ? clockevents_program_event+0x108/0x2e0 [ 29.200803] ? tick_program_event+0x7f/0xd0 [ 29.201312] ? hrtimer_interrupt+0x489/0x5f0 [ 29.201873] irq_exit+0x1d3/0x210 [ 29.202275] smp_apic_timer_interrupt+0x76/0xa0 [ 29.202882] apic_timer_interrupt+0x9d/0xb0 [ 29.203372] [ 29.203615] RIP: 0010:native_safe_halt+0x6/0x10 [ 29.204143] RSP: 0018:ffff88006dacfdb0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 29.205101] RAX: dffffc0000000000 RBX: 1ffff1000db59fb9 RCX: 0000000000000000 [ 29.205997] RDX: 1ffffffff0b592f8 RSI: 0000000000000001 RDI: ffffffff85ac97c0 [ 29.206908] RBP: ffff88006dacfdb0 R08: ffffffff857e9a90 R09: 0000000000000000 [ 29.207797] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85ac97b0 [ 29.208598] R13: ffff88006dacfe68 R14: 0000000000000000 R15: ffff88006dac6040 [ 29.209518] default_idle+0xbf/0x460 [ 29.209944] ? __sched_text_end+0x4/0x4 [ 29.210407] ? tick_nohz_idle_enter+0xde/0x160 [ 29.210928] arch_cpu_idle+0xa/0x10 [ 29.211341] default_idle_call+0x36/0x90 [ 29.212028] do_idle+0x256/0x3b0 [ 29.212691] cpu_startup_entry+0x18/0x20 [ 29.213151] start_secondary+0x277/0x310 [ 29.213608] secondary_startup_64+0xa5/0xa5 [ 29.214315] Dumping ftrace buffer: [ 29.214788] (ftrace buffer empty) [ 29.215200] Kernel Offset: disabled [ 29.215869] Rebooting in 86400 seconds..