BUG: unable to handle kernel paging request at ffffebe000000000
IP: [<ffffffff811d5f59>] kmem_cache_free+0x69/0x200
PGD 0 
Oops: 0000 [#1] SMP 
Modules linked in: snd_hrtimer binfmt_misc arc4 brcmsmac amdkfd intel_rapl cordic amd_iommu_v2 iosf_mbi brcmutil x86_pkg_temp_thermal intel_powerclamp radeon b43 coretemp mac80211 snd_hda_codec_idt snd_hda_codec_generic snd_hda_codec_hdmi ttm kvm_intel cfg80211 uvcvideo kvm drm_kms_helper snd_hda_intel ssb hp_wmi sparse_keymap crct10dif_pclmul videobuf2_vmalloc videobuf2_memops videobuf2_core crc32_pclmul v4l2_common snd_hda_controller ghash_clmulni_intel drm aesni_intel snd_hda_codec videodev aes_x86_64 media dm_multipath lrw gf128mul scsi_dh i2c_algo_bit snd_hwdep glue_helper snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq ablk_helper cryptd mei_me snd_seq_device snd_timer joydev serio_raw bcma mei snd video soundcore hp_accel lis3lv02d wmi input_polldev shpchp 8250_fintek tpm_infineon lpc_ich mac_hid cuse parport_pc ppdev lp parport autofs4 psmouse ahci libahci e1000e sdhci_pci firewire_ohci firewire_core sdhci ptp crc_itu_t pps_core
CPU: 0 PID: 1392 Comm: pulseaudio Not tainted 3.19.0-31-generic #35-Ubuntu
Hardware name: Hewlett-Packard HP ProBook 6560b/1619, BIOS 68SCE Ver. F.22 12/22/2011
task: ffff8800ae0df5c0 ti: ffff8800a8034000 task.ti: ffff8800a8034000
RIP: 0010:[<ffffffff811d5f59>]  [<ffffffff811d5f59>] kmem_cache_free+0x69/0x200
RSP: 0018:ffff8800a8037dd8  EFLAGS: 00010286
RAX: 000001e000000000 RBX: 0000000000000000 RCX: 00007f77faa40000
RDX: 000077ff80000000 RSI: 0000000000000000 RDI: ffff88013a88c400
RBP: ffff8800a8037df8 R08: 0000000000000000 R09: ffffffff8123b4f2
R10: ffff8801396f5b61 R11: ffffebe000000000 R12: ffff88013a88c400
R13: ffff8800ae2afb28 R14: 0000000000000000 R15: ffff8800ae2af918
FS:  00007f3ee1537780(0000) GS:ffff88013f400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebe000000000 CR3: 00000000aadeb000 CR4: 00000000000407f0
Stack:
 0000000000000000 0000000000000000 ffff8800ae2afae8 ffff8800ae2afb28
 ffff8800a8037e28 ffffffff8123b4f2 0000000000000008 ffff8800ae2afae8
 0000000000000000 0000000000000000 ffff8800a8037e58 ffffffff8123b534
Call Trace:
 [<ffffffff8123b4f2>] ep_unregister_pollwait.isra.7+0x72/0x90
 [<ffffffff8123b534>] ep_remove+0x24/0xd0
 [<ffffffff8123c2bf>] eventpoll_release_file+0x5f/0xa0
 [<ffffffff811f6c58>] __fput+0x1d8/0x250
 [<ffffffff811f6d1e>] ____fput+0xe/0x10
 [<ffffffff81093f07>] task_work_run+0xb7/0xf0
 [<ffffffff81014fe7>] do_notify_resume+0x97/0xb0
 [<ffffffff817cc1ef>] int_signal+0x12/0x17
Code: ff 77 00 00 49 bb 00 00 00 00 00 ea ff ff 48 01 d8 48 0f 42 15 c9 40 a4 00 4c 8b 4d 08 48 01 d0 48 c1 e8 0c 48 c1 e0 06 49 01 c3 <49> 8b 03 f6 c4 80 0f 85 53 01 00 00 4c 8b 17 65 4c 03 15 f8 41 
RIP  [<ffffffff811d5f59>] kmem_cache_free+0x69/0x200
 RSP <ffff8800a8037dd8>
CR2: ffffebe000000000
---[ end trace 6f86265abd0e4cff ]---