[ 285.269144] BUG: unable to handle kernel NULL pointer dereference at 00000085
[ 285.273002] IP: [] perf_prepare_sample+0x33e/0x496
[ 285.276062] *pde = 00000000
[ 285.279106] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 285.279106] Modules linked in:
[ 285.279106] CPU: 1 PID: 1583 Comm: trinity-main Not tainted
+3.17.0-rc4-00210-ga54b3e2 #1
[ 285.279106] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
+1.7.5-20140531_083030-gandalf 04/01/2014
[ 285.279106] task: c9475e80 ti: c9670000 task.ti: c9670000
[ 285.279106] EIP: 0060:[] EFLAGS: 00010046 CPU: 1
[ 285.279106] EIP is at perf_prepare_sample+0x33e/0x496
[ 285.279106] EAX: 00000000 EBX: 00000000 ECX: 00000049 EDX: 00000000
[ 285.279106] ESI: cfd71c40 EDI: cfd71b84 EBP: cfd71b58 ESP: cfd71b34
[ 285.279106] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 285.279106] CR0: 80050033 CR2: 00000085 CR3: 095b4000 CR4: 000006d0
[ 285.279106] DR0: 41000043 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 285.279106] DR6: ffff0ff0 DR7: 00010602
[ 285.279106] Stack:
[ 285.279106] 00000000 00000060 00000000 0003a16b 00000000 c96860d0 00000000
+c96860d0
[ 285.279106] 00000000 cfd71bb0 c1125d87 cfd71da8 00000002 00000000 00000000
+c1125d59
[ 285.279106] 00000000 cfd71c40 00000000 4df5a9a0 00000009 00600001 c104e439
+00000001
[ 285.279106] Call Trace:
[ 285.279106] [] __perf_event_overflow+0x28e/0x33c
[ 285.279106] [] ? __perf_event_overflow+0x260/0x33c
[ 285.279106] [] ? pvclock_clocksource_read+0xc2/0x195
[ 285.279106] [] perf_swevent_overflow+0x6f/0xa0
[ 285.279106] [] perf_swevent_event+0x140/0x14a
[ 285.279106] [] perf_tp_event+0x127/0x2b2
[ 285.279106] [] ? pvclock_clocksource_read+0xc2/0x195
[ 285.279106] [] ? update_curr+0x18a/0x269
[ 285.279106] [] ? pvclock_clocksource_read+0xc2/0x195
[ 285.279106] [] ? pvclock_clocksource_read+0xc2/0x195
[ 285.279106] [] ? pvclock_clocksource_read+0xc2/0x195
[ 285.279106] [] perf_trace_sched_stat_runtime+0xea/0xf5
[ 285.279106] [] ? pvclock_clocksource_read+0xc2/0x195
[ 285.279106] [] ? perf_trace_sched_stat_runtime+0xea/0xf5
[ 285.279106] [] ? update_curr+0x18a/0x269
[ 285.279106] [] update_curr+0x18a/0x269
[ 285.279106] [] enqueue_task_fair+0x98/0xf16
[ 285.279106] [] ? sched_clock_cpu+0x1b5/0x1dd
[ 285.279106] [] ? update_rq_clock+0x36/0x7d
[ 285.279106] [] enqueue_task+0x96/0x9d
[ 285.279106] [] activate_task+0x3b/0x3f
[ 285.279106] [] ttwu_activate+0x13/0x4a
[ 285.279106] [] ttwu_do_activate+0x44/0x53
[ 285.279106] [] try_to_wake_up+0x55d/0x5c5
[ 285.279106] [] ? add_timer_on+0xbc/0x130
[ 285.279106] [] wake_up_process+0x63/0x68
[ 285.279106] [] ? add_timer_on+0x130/0x130
[ 285.279106] [] process_timeout+0xd/0xf
[ 285.279106] [] call_timer_fn+0xf2/0x255
[ 285.279106] [] ? add_timer_on+0x130/0x130
[ 285.279106] [] run_timer_softirq+0x27a/0x29c
[ 285.279106] [] ? add_timer_on+0x130/0x130
[ 285.279106] [] ? __tasklet_hrtimer_trampoline+0x4c/0x4c
[ 285.279106] [] __do_softirq+0x193/0x422
[ 285.279106] [] ? __tasklet_hrtimer_trampoline+0x4c/0x4c
[ 285.279106] [] do_softirq_own_stack+0x26/0x2c
[ 285.279106]
[ 285.279106] [] irq_exit+0x6c/0x86
[ 285.279106] [] smp_trace_apic_timer_interrupt+0x15c/0x168
[ 285.279106] [] trace_apic_timer_interrupt+0x32/0x38
[ 285.279106] [] ? pick_next_task_fair+0x47f/0x61f
[ 285.279106] [] ? _raw_spin_unlock_irqrestore+0x5e/0xb2
[ 285.279106] [] __slab_free+0xc2/0x6f5
[ 285.279106] [] ? lookup_address_in_pgd+0xb/0xa2
[ 285.279106] [] ? debug_check_no_locks_freed+0x108/0x120
[ 285.279106] [] kmem_cache_free+0x3aa/0x447
[ 285.279106] [] ? kmem_cache_free+0x3aa/0x447
[ 285.279106] [] ? final_putname+0x3b/0x3e
[ 285.279106] [] ? final_putname+0x3b/0x3e
[ 285.279106] [] final_putname+0x3b/0x3e
[ 285.279106] [] do_sys_open+0x375/0x380
[ 285.279106] [] ? alarm_timer_nsleep_restart+0x5b/0x125
[ 285.279106] [] SyS_openat+0x1b/0x1d
[ 285.279106] [] syscall_call+0x7/0x7
[ 285.279106] Code: 4e 74 66 8b 47 06 85 c9 66 89 45 e0 0f 94 c2 0f b6 da 8b 04
+9d fc e0 60 c2 40 89 04 9d fc e0 60 c2 31 c0 84 d2 0f 85 83 00 00 00 <8b> 59 3c
+8d 43 ff 3d fe ff ff bf 0f 97 c1 0f b6 d1 8b 04 95 d4
[ 285.279106] EIP: [] perf_prepare_sample+0x33e/0x496 SS:ESP
+0068:cfd71b34
[ 285.279106] CR2: 0000000000000085
[ 285.279106] ---[ end trace a1faeec14f7aba60 ]---
[ 285.279106] Kernel panic - not syncing: Fatal exception in interrupt