Debian GNU/Linux 7 syzkaller ttyS0 2017/08/23 20:24:25 fuzzer started 2017/08/23 20:24:25 dialing manager at 10.0.2.10:35389 syzkaller login: [ 36.284630] random: crng init done [ 43.999101] NETDEV WATCHDOG: eth0 (e1000): transmit queue 0 timed out [ 43.999994] ------------[ cut here ]------------ [ 44.000422] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:320 dev_watchdog+0x821/0xa10 [ 44.001185] Kernel panic - not syncing: panic_on_warn set ... [ 44.001185] [ 44.001792] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.0-rc6-next-20170823+ #7 [ 44.002545] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 44.003164] Call Trace: [ 44.003313] [ 44.003443] dump_stack+0x194/0x257 [ 44.003689] ? arch_local_irq_restore+0x53/0x53 [ 44.003961] panic+0x1e4/0x41c [ 44.004144] ? refcount_error_report+0x214/0x214 [ 44.004415] ? show_regs_print_info+0x65/0x65 [ 44.004723] ? dev_watchdog+0x821/0xa10 [ 44.004949] __warn+0x1c4/0x1e0 [ 44.005145] ? dev_watchdog+0x821/0xa10 [ 44.005375] report_bug+0x211/0x2d0 [ 44.005608] fixup_bug+0x40/0x90 [ 44.005976] do_trap+0x260/0x390 [ 44.006276] do_error_trap+0x120/0x390 [ 44.006643] ? vprintk_emit+0x49b/0x590 [ 44.007037] ? do_trap+0x390/0x390 [ 44.007349] ? dev_watchdog+0x821/0xa10 [ 44.007728] ? vprintk_emit+0x3ea/0x590 [ 44.008129] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.008582] do_invalid_op+0x1b/0x20 [ 44.008913] invalid_op+0x18/0x20 [ 44.009951] RIP: 0010:dev_watchdog+0x821/0xa10 [ 44.010400] RSP: 0018:ffff88003ec077b8 EFLAGS: 00010286 [ 44.011640] RAX: 0000000000000039 RBX: ffff88003b491680 RCX: 0000000000000000 [ 44.012349] RDX: 0000000000000039 RSI: 1ffff10007d80eb7 RDI: ffffed0007d80eeb [ 44.013544] RBP: ffff88003ec078b8 R08: ffff88003ec06ea8 R09: 0000000000000000 [ 44.014525] R10: ffffffff85a2f3c0 R11: 0000000000000000 R12: 0000000000000000 [ 44.015641] R13: dffffc0000000000 R14: ffff88003b491b60 R15: ffff88003c23b040 [ 44.017554] ? dev_watchdog+0x821/0xa10 [ 44.018840] ? qdisc_rcu_free+0x110/0x110 [ 44.020506] ? __lock_is_held+0xbc/0x140 [ 44.021095] call_timer_fn+0x246/0x850 [ 44.022604] ? qdisc_rcu_free+0x110/0x110 [ 44.023314] ? init_timer_key+0x3b0/0x3b0 [ 44.024735] ? lock_downgrade+0x990/0x990 [ 44.026265] ? update_max_interval+0x60/0x60 [ 44.027130] ? __run_timers+0x1ce/0xb90 [ 44.028696] ? do_raw_spin_trylock+0x190/0x190 [ 44.029424] ? __lock_is_held+0xbc/0x140 [ 44.031124] ? qdisc_rcu_free+0x110/0x110 [ 44.031734] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 44.035303] ? qdisc_rcu_free+0x110/0x110 [ 44.036072] __run_timers+0x7fd/0xb90 [ 44.036637] ? msleep_interruptible+0x170/0x170 [ 44.038227] ? lock_acquire+0x1d5/0x580 [ 44.039142] ? __hrtimer_run_queues+0x385/0xe10 [ 44.040529] ? find_held_lock+0x39/0x1d0 [ 44.041145] ? lock_downgrade+0x990/0x990 [ 44.042692] ? lock_acquire+0x1d5/0x580 [ 44.043002] ? clockevents_program_event+0x163/0x2e0 [ 44.043505] ? pvclock_read_flags+0x160/0x160 [ 44.045718] ? rcu_pm_notify+0xc0/0xc0 [ 44.046410] run_timer_softirq+0x21/0x80 [ 44.051580] __do_softirq+0x2bb/0xbd0 [ 44.052551] ? __softirqentry_text_start+0x8/0x8 [ 44.053810] ? native_apic_msr_write+0x5c/0x80 [ 44.056909] ? lapic_next_event+0x5a/0x90 [ 44.057511] ? clockevents_program_event+0x108/0x2e0 [ 44.058221] ? tick_program_event+0x7f/0xd0 [ 44.058880] ? hrtimer_interrupt+0x489/0x5f0 [ 44.060258] irq_exit+0x1d3/0x210 [ 44.061716] smp_apic_timer_interrupt+0x76/0xa0 [ 44.064203] apic_timer_interrupt+0x9d/0xb0 [ 44.065212] [ 44.075845] RIP: 0010:native_safe_halt+0x6/0x10 [ 44.076550] RSP: 0018:ffffffff85a07ce0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 44.078412] RAX: dffffc0000000000 RBX: 1ffffffff0b40f9f RCX: 0000000000000000 [ 44.078923] RDX: 1ffffffff0b59148 RSI: 0000000000000001 RDI: ffffffff85ac8a40 [ 44.079445] RBP: ffffffff85a07ce0 R08: ffffffff85804a80 R09: 0000000000000000 [ 44.079970] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85ac8a30 [ 44.080499] R13: ffffffff85a07d98 R14: 0000000000000000 R15: ffffffff85a2f3c0 [ 44.081050] default_idle+0xbf/0x460 [ 44.081327] ? __sched_text_end+0x4/0x4 [ 44.081639] arch_cpu_idle+0xa/0x10 [ 44.081920] default_idle_call+0x36/0x90 [ 44.082471] do_idle+0x256/0x3b0 [ 44.082949] cpu_startup_entry+0x18/0x20 [ 44.083513] rest_init+0xed/0xf0 [ 44.083988] start_kernel+0x782/0x7a8 [ 44.084519] ? mem_encrypt_init+0xb/0xb [ 44.085083] ? memcpy_orig+0x54/0x110 [ 44.085619] ? early_idt_handler_array+0x120/0x120 [ 44.086310] x86_64_start_reservations+0x2a/0x2c [ 44.086970] x86_64_start_kernel+0x13c/0x149 [ 44.087594] secondary_startup_64+0xa5/0xa5 [ 44.088440] Dumping ftrace buffer: [ 44.089052] (ftrace buffer empty) [ 44.089578] Kernel Offset: disabled [ 44.090115] Rebooting in 86400 seconds..