2017/11/05 03:42:12 parsed 1 programs
2017/11/05 03:42:12 executed programs: 0
syzkaller login: [ 1339.044089] ------------[ cut here ]------------
[ 1339.044721] WARNING: CPU: 2 PID: 0 at kernel/kthread.c:87 free_kthread_struct+0xa2/0xe0
[ 1339.045734] Kernel panic - not syncing: panic_on_warn set ...
[ 1339.045734] 
[ 1339.046623] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.14.0-rc7-next-20171103+ #10
[ 1339.047575] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[ 1339.048573] Call Trace:
[ 1339.048896]  <IRQ>
[ 1339.049176]  dump_stack+0x194/0x257
[ 1339.049634]  ? arch_local_irq_restore+0x53/0x53
[ 1339.050220]  ? vsnprintf+0x1ed/0x1900
[ 1339.050697]  panic+0x1e4/0x41c
[ 1339.051263]  ? refcount_error_report+0x214/0x214
[ 1339.052116]  ? show_regs_print_info+0x65/0x65
[ 1339.052668]  ? __warn+0x1a9/0x1e0
[ 1339.053098]  ? free_kthread_struct+0xa2/0xe0
[ 1339.053640]  __warn+0x1c4/0x1e0
[ 1339.054012]  ? free_kthread_struct+0xa2/0xe0
[ 1339.054559]  report_bug+0x211/0x2d0
[ 1339.055269]  fixup_bug+0x40/0x90
[ 1339.055681]  do_trap+0x260/0x390
[ 1339.056168]  do_error_trap+0x120/0x390
[ 1339.056633]  ? save_stack+0xa3/0xd0
[ 1339.056955]  ? do_trap+0x390/0x390
[ 1339.057258]  ? free_kthread_struct+0xa2/0xe0
[ 1339.057656]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 1339.058252]  do_invalid_op+0x1b/0x20
[ 1339.058697]  invalid_op+0x18/0x20
[ 1339.059134] RIP: 0010:free_kthread_struct+0xa2/0xe0
[ 1339.060048] RSP: 0018:ffff88006de07768 EFLAGS: 00010206
[ 1339.060685] RAX: ffff88006dab2040 RBX: ffff88006a6f2580 RCX: ffffffff814937d2
[ 1339.061571] RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff88006a6f2708
[ 1339.062640] RBP: ffff88006de07770 R08: 0000000000000000 R09: 1ffff1000dbc0ed4
[ 1339.063506] R10: ffff88006dab2040 R11: 0000000000000001 R12: 1ffff1000dbc0ef0
[ 1339.064375] R13: 1ffff1000dbc0ef4 R14: 0000000000000000 R15: ffff88006de077e0
[ 1339.065275]  ? free_kthread_struct+0xa2/0xe0
[ 1339.065819]  ? free_kthread_struct+0xa2/0xe0
[ 1339.066294]  free_task+0x134/0x1a0
[ 1339.066739]  ? arch_release_task_struct+0x10/0x10
[ 1339.067408]  ? atomic_notifier_call_chain+0xb9/0x140
[ 1339.068005]  __put_task_struct+0x229/0x3b0
[ 1339.068513]  ? free_task+0x1a0/0x1a0
[ 1339.068973]  delayed_put_task_struct+0xca/0x3d0
[ 1339.069538]  ? child_wait_callback+0x210/0x210
[ 1339.070091]  ? put_pid+0x183/0x1f0
[ 1339.070510]  ? task_active_pid_ns+0xd0/0xd0
[ 1339.071125]  ? kmem_cache_free+0x249/0x280
[ 1339.071614]  ? free_vfsmnt+0x80/0x80
[ 1339.072057]  ? put_pid+0x1f0/0x1f0
[ 1339.072493]  ? child_wait_callback+0x210/0x210
[ 1339.073064]  rcu_process_callbacks+0xd74/0x17d0
[ 1339.073627]  ? rcu_gp_kthread+0x18e0/0x18e0
[ 1339.074166]  ? timerqueue_add+0x1e9/0x280
[ 1339.074690]  ? find_held_lock+0x39/0x1d0
[ 1339.076171]  ? lock_acquire+0x1d5/0x580
[ 1339.076674]  ? rebalance_domains+0xcc0/0xcc0
[ 1339.077234]  ? rcu_pm_notify+0xc0/0xc0
[ 1339.077729]  __do_softirq+0x29d/0xbb2
[ 1339.078198]  ? __irqentry_text_end+0x4/0x4
[ 1339.078720]  ? do_raw_spin_trylock+0x190/0x190
[ 1339.079634]  ? do_timer+0x50/0x50
[ 1339.080060]  ? native_apic_msr_write+0x5c/0x80
[ 1339.080608]  ? kvm_clock_get_cycles+0x25/0x30
[ 1339.081147]  ? lapic_next_event+0x54/0x80
[ 1339.081647]  ? clockevents_program_event+0x108/0x2e0
[ 1339.082265]  ? tick_program_event+0x7f/0xd0
[ 1339.082792]  ? hrtimer_interrupt+0x489/0x5f0
[ 1339.083539]  ? rcu_pm_notify+0xc0/0xc0
[ 1339.083987]  irq_exit+0x1d3/0x210
[ 1339.084522]  smp_apic_timer_interrupt+0x16b/0x700
[ 1339.085094]  ? smp_reschedule_interrupt+0xe6/0x670
[ 1339.085685]  ? smp_call_function_single_interrupt+0x640/0x640
[ 1339.086435]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 1339.087030]  ? tick_nohz_idle_enter+0xd9/0x160
[ 1339.087573]  apic_timer_interrupt+0x9d/0xb0
[ 1339.088002]  </IRQ>
[ 1339.088205] RIP: 0010:native_safe_halt+0x6/0x10
[ 1339.088608] RSP: 0018:ffff88006dabfda8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff11
[ 1339.089537] RAX: dffffc0000000000 RBX: 1ffff1000db57fb8 RCX: 0000000000000000
[ 1339.090409] RDX: 1ffffffff0bd9674 RSI: 0000000000000001 RDI: ffffffff85ecb3a0
[ 1339.091328] RBP: ffff88006dabfda8 R08: ffffffff81635769 R09: 0000000000000000
[ 1339.092196] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002
[ 1339.092997] R13: ffff88006dabfe60 R14: ffffffff865b6f60 R15: 0000000000000000
[ 1339.093925]  ? tick_nohz_idle_enter+0xd9/0x160
[ 1339.094486]  ? trace_hardirqs_on+0xd/0x10
[ 1339.096107]  default_idle+0xbf/0x430
[ 1339.096563]  ? __sched_text_end+0x4/0x4
[ 1339.097058]  ? rcu_eqs_special_set+0x1e0/0x1e0
[ 1339.097614]  ? set_cpu_sd_state_idle+0x1dc/0x2d0
[ 1339.098248]  ? mark_tsc_async_resets+0x30/0x30
[ 1339.098792]  arch_cpu_idle+0xa/0x10
[ 1339.099230]  default_idle_call+0x36/0x90
[ 1339.099707]  do_idle+0x24a/0x3b0
[ 1339.100123]  cpu_startup_entry+0x18/0x20
[ 1339.100605]  start_secondary+0x2dd/0x3e0
[ 1339.101015]  secondary_startup_64+0xa5/0xb0
[ 1339.101709] Dumping ftrace buffer:
[ 1339.102214]    (ftrace buffer empty)
[ 1339.102650] Kernel Offset: disabled
[ 1339.103120] Rebooting in 86400 seconds..