BUG: unable to handle kernel paging request at fffffffffffffff8
IP: [<ffffffff81244d5f>] eventpoll_release_file+0x3f/0xa0
PGD 1c0f067 PUD 1c11067 PMD 0 
Oops: 0000 [#1] SMP 
Modules linked in: binfmt_misc bnep bluetooth vboxsf snd_intel8x0 snd_ac97_codec ac97_bus iosf_mbi snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi crct10dif_pclmul joydev snd_seq crc32_pclmul snd_seq_device snd_timer ghash_clmulni_intel aesni_intel snd aes_x86_64 lrw gf128mul glue_helper soundcore ablk_helper vboxvideo cryptd input_leds serio_raw i2c_piix4 drm vboxguest 8250_fintek mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid hid ahci psmouse e1000 libahci pata_acpi video
CPU: 3 PID: 1696 Comm: pulseaudio Not tainted 4.2.0-15-generic #17-Ubuntu
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
task: ffff880119e11b80 ti: ffff880119e18000 task.ti: ffff880119e18000
RIP: 0010:[<ffffffff81244d5f>]  [<ffffffff81244d5f>] eventpoll_release_file+0x3f/0xa0
RSP: 0018:ffff880119e1be68  EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffffffffffb7 RCX: 000000000000000f
RDX: 0000000080000000 RSI: 0000000000000000 RDI: ffffffff81c808c0
RBP: ffff880119e1be98 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8800da97d3e1 R11: 0000000000000220 R12: ffffffffffffffa8
R13: ffff8800da97d3e1 R14: ffff8800d7df3cc0 R15: ffff8800dab34918
FS:  00007f9a92da57c0(0000) GS:ffff88011fd80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 000000011a36b000 CR4: 00000000000406e0
Stack:
 0000000000000000 ffff8800dab34840 0000000000000010 ffff8800da97d3e1
 ffff8800d7df3cc0 ffff8800d9755cc0 ffff880119e1bee8 ffffffff811fefa6
 ffff88011a7f1a40 ffff88011a7f1a40 ffff880119e11b80 0000000000000000
Call Trace:
 [<ffffffff811fefa6>] __fput+0x1e6/0x220
 [<ffffffff811ff02e>] ____fput+0xe/0x10
 [<ffffffff81098b55>] task_work_run+0x85/0xb0
 [<ffffffff81014ea9>] do_notify_resume+0x69/0x70
 [<ffffffff817efc04>] int_signal+0x12/0x17
Code: 53 48 c7 c7 c0 08 c8 81 49 81 c7 d8 00 00 00 48 83 ec 08 e8 74 8b 5a 00 49 8b 07 48 8b 08 49 39 c7 4c 8d 60 a8 48 8d 59 a8 74 38 <4d> 8b 74 24 50 4d 8d 6e 08 4c 89 ef e8 50 8b 5a 00 4c 89 e6 4c 
RIP  [<ffffffff81244d5f>] eventpoll_release_file+0x3f/0xa0
 RSP <ffff880119e1be68>
CR2: fffffffffffffff8
---[ end trace 4500b5041a110c92 ]---