Comment 3 for bug 1503738

On "Ubuntu 14.04.3 LTS" (Linux/x86_64 3.19.0-31-generic):

Oct 7 20:04:32 fixe kernel: [ 27.802369] BUG: unable to handle kernel paging request at fffffffffffffff8
Oct 7 20:04:32 fixe kernel: [ 27.802405] IP: [<ffffffff812317ee>] eventpoll_release_file+0x4e/0xa0
Oct 7 20:04:32 fixe kernel: [ 27.802434] PGD 1c19067 PUD 1c1b067 PMD 0
Oct 7 20:04:32 fixe kernel: [ 27.802461] Oops: 0000 [#1] SMP
Oct 7 20:04:32 fixe kernel: [ 27.802481] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd grace sunrpc fscache joydev mxm_wmi amdkfd amd_iommu_v2 snd_hda_codec_realtek coretemp snd_hda_codec_generic snd_hda_codec_hdmi radeon kvm_intel kvm snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep serio_raw snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi ttm drm_kms_helper snd_seq snd_seq_device drm snd_timer snd lpc_ich i2c_algo_bit soundcore asus_atk0110 tpm_infineon wmi i7core_edac i5500_temp edac_core shpchp mac_hid parport_pc ppdev lp parport btrfs xor raid6_pq hid_generic usbhid hid psmouse ahci r8169 libahci mii
Oct 7 20:04:32 fixe kernel: [ 27.802902] CPU: 5 PID: 2514 Comm: pulseaudio Tainted: G IOE 3.19.0-31-generic #35~14.04.1-Ubuntu
Oct 7 20:04:32 fixe kernel: [ 27.802935] Hardware name: System manufacturer System Product Name/P6T, BIOS 1408 09/21/2010
Oct 7 20:04:32 fixe kernel: [ 27.802964] task: ffff88022ae2ebf0 ti: ffff8800b3afc000 task.ti: ffff8800b3afc000
Oct 7 20:04:32 fixe kernel: [ 27.802989] RIP: 0010:[<ffffffff812317ee>] [<ffffffff812317ee>] eventpoll_release_file+0x4e/0xa0
Oct 7 20:04:32 fixe kernel: [ 27.803022] RSP: 0018:ffff8800b3affe68 EFLAGS: 00010286
Oct 7 20:04:32 fixe kernel: [ 27.803040] RAX: 0000000000000000 RBX: ffffffffffffffb9 RCX: 0000000000000011
Oct 7 20:04:32 fixe kernel: [ 27.803065] RDX: 0000000004000000 RSI: 00000000000000f4 RDI: ffffffff81c7ef00
Oct 7 20:04:32 fixe kernel: [ 27.803088] RBP: ffff8800b3affe98 R08: 0000000000000000 R09: 0000000000000000
Oct 7 20:04:32 fixe kernel: [ 27.803112] R10: ffff8800b3a14ce1 R11: 0000000000000206 R12: ffffffffffffffa8
Oct 7 20:04:32 fixe kernel: [ 27.803136] R13: ffff8800b3a14ce1 R14: ffff8800b3aeba40 R15: ffff8800b3a64318
Oct 7 20:04:32 fixe kernel: [ 27.803161] FS: 00007f3003690740(0000) GS:ffff88023fca0000(0000) knlGS:0000000000000000
Oct 7 20:04:32 fixe kernel: [ 27.803188] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Oct 7 20:04:32 fixe kernel: [ 27.803208] CR2: fffffffffffffff8 CR3: 000000023314e000 CR4: 00000000000007e0
Oct 7 20:04:32 fixe kernel: [ 27.803232] Stack:
Oct 7 20:04:32 fixe kernel: [ 27.803240] ffff8800b3affe88 ffff8800b3a64240 0000000000000008 ffff8800b3a14ce1
Oct 7 20:04:32 fixe kernel: [ 27.803279] ffff8800b3aeba40 ffff8800b3a14240 ffff8800b3affee8 ffffffff811ee0fb
Oct 7 20:04:32 fixe kernel: [ 27.803312] 0000000000000001 ffff88022ae2ebf0 ffff8800b3afff18 0000000000000000
Oct 7 20:04:32 fixe kernel: [ 27.803346] Call Trace:
Oct 7 20:04:32 fixe kernel: [ 27.803359] [<ffffffff811ee0fb>] __fput+0x1cb/0x220
Oct 7 20:04:32 fixe kernel: [ 27.803377] [<ffffffff811ee19e>] ____fput+0xe/0x10
Oct 7 20:04:32 fixe kernel: [ 27.803399] [<ffffffff81091de7>] task_work_run+0xb7/0xf0
Oct 7 20:04:32 fixe kernel: [ 27.803420] [<ffffffff81015007>] do_notify_resume+0x97/0xb0
Oct 7 20:04:32 fixe kernel: [ 27.803441] [<ffffffff817b706f>] int_signal+0x12/0x17
Oct 7 20:04:32 fixe kernel: [ 27.803458] Code: 48 83 ec 08 e8 d4 34 58 00 49 8b 07 48 8b 08 49 39 c7 4c 8d 60 a8 48 8d 59 a8 75 0f eb 42 0f 1f 80 00 00 00 00 49 89 dc 48 89 d3 <4d> 8b 74 24 50 4d 8d 6e 08 4c 89 ef e8 a1 34 58 00 4c 89 e6 4c
Oct 7 20:04:32 fixe kernel: [ 27.803743] RIP [<ffffffff812317ee>] eventpoll_release_file+0x4e/0xa0
Oct 7 20:04:32 fixe kernel: [ 27.803767] RSP <ffff8800b3affe68>
Oct 7 20:04:32 fixe kernel: [ 27.803780] CR2: fffffffffffffff8
Oct 7 20:04:32 fixe kernel: [ 27.808984] ---[ end trace 555c4b496c2ae7c2 ]---