2017/08/30 11:05:52 fuzzer started 2017/08/30 11:05:52 dialing manager at 10.0.2.10:39682 syzkaller login: [ 42.975081] NETDEV WATCHDOG: eth0 (e1000): transmit queue 0 timed out [ 42.975854] ------------[ cut here ]------------ [ 42.976319] WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:320 dev_watchdog+0x821/0xa10 [ 42.977103] Kernel panic - not syncing: panic_on_warn set ... [ 42.977103] [ 42.977795] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.13.0-rc7-next-20170829+ #11 [ 42.978520] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 42.979281] Call Trace: [ 42.983022] [ 42.983260] dump_stack+0x194/0x257 [ 42.983649] ? arch_local_irq_restore+0x53/0x53 [ 42.984144] panic+0x1e4/0x41c [ 42.984426] ? refcount_error_report+0x214/0x214 [ 42.985517] ? show_regs_print_info+0x65/0x65 [ 42.986014] ? dev_watchdog+0x821/0xa10 [ 42.986630] __warn+0x1c4/0x1e0 [ 42.987674] ? dev_watchdog+0x821/0xa10 [ 42.988924] report_bug+0x211/0x2d0 [ 42.989831] fixup_bug+0x40/0x90 [ 42.990757] do_trap+0x260/0x390 [ 42.991451] do_error_trap+0x120/0x390 [ 42.992289] ? vprintk_emit+0x49b/0x590 [ 42.993286] ? do_trap+0x390/0x390 [ 42.994199] ? dev_watchdog+0x821/0xa10 [ 42.998461] ? vprintk_emit+0x3ea/0x590 [ 42.999055] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.000561] do_invalid_op+0x1b/0x20 [ 43.001253] invalid_op+0x18/0x20 [ 43.002345] RIP: 0010:dev_watchdog+0x821/0xa10 [ 43.004728] RSP: 0018:ffff88003ed077b8 EFLAGS: 00010286 [ 43.005739] RAX: 0000000000000039 RBX: ffff88006b2c14c0 RCX: 0000000000000000 [ 43.008149] RDX: 0000000000000039 RSI: 1ffff10007da0eb7 RDI: ffffed0007da0eeb [ 43.009647] RBP: ffff88003ed078b8 R08: ffff88003ed06ea8 R09: 0000000000000000 [ 43.011107] R10: ffff88003e04e340 R11: 0000000000000000 R12: 0000000000000000 [ 43.012808] R13: dffffc0000000000 R14: ffff88006b2c19a0 R15: ffff88006b6b8500 [ 43.014931] ? dev_watchdog+0x821/0xa10 [ 43.015558] ? qdisc_rcu_free+0x110/0x110 [ 43.016467] ? __lock_is_held+0xbc/0x140 [ 43.017336] call_timer_fn+0x246/0x850 [ 43.018237] ? qdisc_rcu_free+0x110/0x110 [ 43.018990] ? __next_timer_interrupt+0x150/0x150 [ 43.019985] ? lock_downgrade+0x990/0x990 [ 43.021025] ? update_max_interval+0x60/0x60 [ 43.023059] ? __run_timers+0x1ce/0xb90 [ 43.024284] ? do_raw_spin_trylock+0x190/0x190 [ 43.025568] ? __lock_is_held+0xbc/0x140 [ 43.026743] ? qdisc_rcu_free+0x110/0x110 [ 43.029200] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 43.030711] ? qdisc_rcu_free+0x110/0x110 [ 43.031949] __run_timers+0x7fd/0xb90 [ 43.033277] ? del_timer_sync+0x240/0x240 [ 43.034110] ? lock_acquire+0x1d5/0x580 [ 43.034788] ? __hrtimer_run_queues+0x385/0xe10 [ 43.035761] ? find_held_lock+0x39/0x1d0 [ 43.036696] ? lock_downgrade+0x990/0x990 [ 43.037632] ? lock_acquire+0x1d5/0x580 [ 43.038632] ? clockevents_program_event+0x163/0x2e0 [ 43.041508] ? pvclock_read_flags+0x160/0x160 [ 43.043015] ? rcu_pm_notify+0xc0/0xc0 [ 43.044213] run_timer_softirq+0x4c/0xb0 [ 43.045619] __do_softirq+0x2bd/0xbd4 [ 43.047971] ? __softirqentry_text_start+0x8/0x8 [ 43.052733] ? native_apic_msr_write+0x5c/0x80 [ 43.053620] ? lapic_next_event+0x5a/0x90 [ 43.055129] ? clockevents_program_event+0x108/0x2e0 [ 43.056178] ? tick_program_event+0x7f/0xd0 [ 43.057637] ? hrtimer_interrupt+0x489/0x5f0 [ 43.058666] irq_exit+0x1d3/0x210 [ 43.059291] smp_apic_timer_interrupt+0x76/0xa0 [ 43.064258] apic_timer_interrupt+0x9d/0xb0 [ 43.064889] [ 43.065242] RIP: 0010:native_safe_halt+0x6/0x10 [ 43.065941] RSP: 0018:ffff88003e057db0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 43.067537] RAX: dffffc0000000000 RBX: 1ffff10007c0afb9 RCX: 0000000000000000 [ 43.070645] RDX: 1ffffffff0b592f8 RSI: 0000000000000001 RDI: ffffffff85ac97c0 [ 43.072818] RBP: ffff88003e057db0 R08: ffffffff857e9a88 R09: 0000000000000000 [ 43.075741] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85ac97b0 [ 43.077248] R13: ffff88003e057e68 R14: 0000000000000000 R15: ffff88003e04e340 [ 43.079473] default_idle+0xbf/0x460 [ 43.080679] ? __sched_text_end+0x4/0x4 [ 43.081421] ? tick_nohz_idle_enter+0xde/0x160 [ 43.082933] arch_cpu_idle+0xa/0x10 [ 43.084612] default_idle_call+0x36/0x90 [ 43.085408] do_idle+0x256/0x3b0 [ 43.086379] cpu_startup_entry+0x18/0x20 [ 43.088135] start_secondary+0x277/0x310 [ 43.089334] secondary_startup_64+0xa5/0xa5 [ 43.090506] Dumping ftrace buffer: [ 43.091366] (ftrace buffer empty) [ 43.092484] Kernel Offset: disabled [ 43.093242] Rebooting in 86400 seconds..