kernel-packages team mailing list archive

[Philip Muškovac <yofel@xxxxxxx>]

Public bug reported:

So far I've seen this happen on 2 systems today. On one only X froze, the other one panicked.
Booting into 3.16.0-67 is the workaround for now

ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be restarted.
Date: Wed Apr  6 09:57:21 2016
Failure: oops
OopsText:
 BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
 IP: [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
 PGD 0
 Oops: 0002 [#1] SMP
 Modules linked in: xt_nat xt_tcpudp veth xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs arc4 md4 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm bnep bluetooth 6lowpan_iphc nls_utf8 cifs binfmt_misc fscache snd_hda_codec_via snd_hda_codec_generic radeon snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep joydev snd_pcm snd_seq_midi ttm snd_seq_midi_event drm_kms_helper drm snd_rawmidi snd_seq i2c_algo_bit snd_seq_device kvm snd_timer snd ppdev serio_raw soundcore shpchp lp edac_core edac_mce_amd i2c_nforce2 mac_hid parport_pc asus_atk0110 k10temp parport hid_cherry hid_generic usbhid pata_acpi hid psmouse sata_nv forcedeth pata_amd
 CPU: 1 PID: 1543 Comm: Xorg Tainted: G           OE 3.16.0-69-generic #89~14.04.1-Ubuntu
 Hardware name: System manufacturer System Product Name/M4N68T-M-V2, BIOS 0501    08/03/2010
 task: ffff8800b9b45bb0 ti: ffff8800b9e28000 task.ti: ffff8800b9e28000
 RIP: 0010:[<ffffffffc03b23ed>]  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
 RSP: 0018:ffff8800b9e2bad0  EFLAGS: 00010286
 RAX: 0000000000000000 RBX: ffff880035cf55f8 RCX: ffff880035cf4000
 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
 RBP: ffff8800b9e2bbd0 R08: ffff880035cf4d08 R09: ffff880035cf4000
 R10: 0000000000000000 R11: ffff8800b9e2bde8 R12: ffff880035cf5550
 R13: ffff8800b9e2bba8 R14: ffff8800b9e2bb78 R15: 0000000000000020
 FS:  00007f6e2ab398c0(0000) GS:ffff8801bfc40000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000008 CR3: 00000000b8192000 CR4: 00000000000007e0
 Stack:
  ffffffffc0414ad4 ffff8800b9b45bb0 ffff8800b9b45bb0 ffff880035cf4000
  ffff8800b9e2bca8 0000edc0b9e2bb90 0000000000000000 0020000000000100
  000000000004a8e0 ffff8800b9e2bb78 0000000000000000 0000000000000000
 Call Trace:
  [<ffffffffc0414ad4>] ? radeon_sa_bo_new+0x2b4/0x4f0 [radeon]
  [<ffffffff8118fc68>] ? insert_pfn.isra.61+0x48/0xa0
  [<ffffffffc03c7f43>] radeon_ib_get+0x33/0xe0 [radeon]
  [<ffffffffc03ca67b>] radeon_cs_ioctl+0x14b/0x770 [radeon]
  [<ffffffffc02be9ec>] drm_ioctl+0x1ec/0x660 [drm]
  [<ffffffff8105bfbc>] ? __do_page_fault+0x20c/0x560
  [<ffffffffc039604b>] radeon_drm_ioctl+0x4b/0x80 [radeon]
  [<ffffffff811e8d80>] do_vfs_ioctl+0x2e0/0x4c0
  [<ffffffff811e8fe1>] SyS_ioctl+0x81/0xa0
  [<ffffffff8177258d>] system_call_fastpath+0x1a/0x1f
 Code: dc 48 8b 3b 89 c1 44 89 e2 48 c7 c6 70 66 4a c0 31 c0 e8 d7 75 10 c1 eb c2 0f 1f 44 00 00 66 66 66 66 90 48 89 f8 ba 01 00 00 00 <f0> 0f c1 57 08 83 c2 01 83 fa 01 7e 01 c3 80 3d 5e 8b 11 00 00
 RIP  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
  RSP <ffff8800b9e2bad0>
 CR2: 0000000000000008
 ---[ end trace 4dfa7ee83f5a67e2 ]---

Package: linux-image-3.16.0-69-generic 3.16.0-69.89~14.04.1
SourcePackage: linux
Tags: kernel-oops
Uname: Linux 3.16.0-69-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Dependencies:
 adduser 3.113+nmu3ubuntu3
 apt-utils 1.0.1ubuntu2.11
 base-passwd 3.5.33
 busybox-initramfs 1:1.21.0-1ubuntu1
 coreutils 8.21-1ubuntu5.4
 cpio 2.11+dfsg-1ubuntu1.2
 dbus 1.6.18-0ubuntu4.3
 debconf 1.5.51ubuntu2
 debconf-i18n 1.5.51ubuntu2
 debianutils 4.4
 dmsetup 2:1.02.77-6ubuntu2
 dpkg 1.17.5ubuntu5.5
 e2fslibs 1.42.9-3ubuntu1.3
 e2fsprogs 1.42.9-3ubuntu1.3
 findutils 4.4.2-7
 gcc-4.8-base 4.8.4-2ubuntu1~14.04.1
 gcc-4.9-base 4.9.3-0ubuntu4
 gettext-base 0.18.3.1-1ubuntu3
 grub-common 2.02~beta2-9ubuntu1.7
 grub-gfxpayload-lists 0.6
 grub-pc 2.02~beta2-9ubuntu1.7
 grub-pc-bin 2.02~beta2-9ubuntu1.7
 grub2-common 2.02~beta2-9ubuntu1.7
 ifupdown 0.7.47.2ubuntu4.4
 initramfs-tools 0.103ubuntu4.3
 initramfs-tools-bin 0.103ubuntu4.3
 initscripts 2.88dsf-41ubuntu6.3
 insserv 1.14.0-5ubuntu2
 iproute2 3.12.0-2ubuntu1
 isc-dhcp-client 4.2.4-7ubuntu12.4
 isc-dhcp-common 4.2.4-7ubuntu12.4
 klibc-utils 2.0.3-0ubuntu1
 kmod 15-0ubuntu6
 libacl1 2.2.52-1
 libapparmor1 2.8.95~2430-0ubuntu5.3
 libapt-inst1.5 1.0.1ubuntu2.11
 libapt-pkg4.12 1.0.1ubuntu2.11
 libasprintf0c2 0.18.3.1-1ubuntu3
 libattr1 1:2.4.47-1ubuntu1
 libaudit-common 1:2.3.2-2ubuntu1
 libaudit1 1:2.3.2-2ubuntu1
 libblkid1 2.20.1-5.1ubuntu20.7
 libbz2-1.0 1.0.6-5
 libc6 2.19-0ubuntu6.7
 libcap2 1:2.24-0ubuntu2
 libcgmanager0 0.24-0ubuntu7.5
 libcomerr2 1.42.9-3ubuntu1.3
 libdb5.3 5.3.28-3ubuntu3
 libdbus-1-3 1.6.18-0ubuntu4.3
 libdebconfclient0 0.187ubuntu1
 libdevmapper1.02.1 2:1.02.77-6ubuntu2
 libdrm2 2.4.64-1~ubuntu14.04.1
 libexpat1 2.1.0-4ubuntu1.1
 libfreetype6 2.5.2-1ubuntu2.5
 libfuse2 2.9.2-4ubuntu4.14.04.1
 libgcc1 1:4.9.3-0ubuntu4
 libgpm2 1.20.4-6.1
 libjson-c2 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
 libjson0 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
 libklibc 2.0.3-0ubuntu1
 libkmod2 15-0ubuntu6
 liblocale-gettext-perl 1.05-7build3
 liblzma5 5.1.1alpha+20120614-2ubuntu2
 libmount1 2.20.1-5.1ubuntu20.7
 libncurses5 5.9+20140118-1ubuntu1
 libncursesw5 5.9+20140118-1ubuntu1
 libnih-dbus1 1.0.3-4ubuntu25
 libnih1 1.0.3-4ubuntu25
 libpam-modules 1.1.8-1ubuntu2.2
 libpam-modules-bin 1.1.8-1ubuntu2.2
 libpam-runtime 1.1.8-1ubuntu2.2
 libpam-systemd 204-5ubuntu20.18
 libpam0g 1.1.8-1ubuntu2.2
 libpcre3 1:8.31-2ubuntu2.2
 libplymouth2 0.8.8-0ubuntu17.1
 libpng12-0 1.2.50-1ubuntu2.14.04.2
 libprocps3 1:3.3.9-1ubuntu2.2
 libselinux1 2.2.2-1ubuntu0.1
 libsemanage-common 2.2-1
 libsemanage1 2.2-1
 libsepol1 2.2-1ubuntu0.1
 libslang2 2.2.4-15ubuntu1
 libss2 1.42.9-3ubuntu1.3
 libstdc++6 4.8.4-2ubuntu1~14.04.1
 libsystemd-daemon0 204-5ubuntu20.18
 libsystemd-login0 204-5ubuntu20.18
 libtext-charwidth-perl 0.04-7build3
 libtext-iconv-perl 1.7-5build2
 libtext-wrapi18n-perl 0.06-7
 libtinfo5 5.9+20140118-1ubuntu1
 libudev1 204-5ubuntu20.18
 libustr-1.0-1 1.0.4-3ubuntu2
 libuuid1 2.20.1-5.1ubuntu20.7
 libxtables10 1.4.21-1ubuntu1
 lsb-base 4.1+Debian11ubuntu6
 makedev 2.3.1-93ubuntu1
 module-init-tools 15-0ubuntu6
 mount 2.20.1-5.1ubuntu20.7
 mountall 2.53
 multiarch-support 2.19-0ubuntu6.7
 netbase 5.2
 os-prober 1.63ubuntu1.1
 passwd 1:4.1.5.1-1ubuntu9.2
 perl-base 5.18.2-2ubuntu1.1
 plymouth 0.8.8-0ubuntu17.1
 plymouth-theme-ubuntu-text 0.8.8-0ubuntu17.1
 procps 1:3.3.9-1ubuntu2.2
 psmisc 22.20-1ubuntu2
 sensible-utils 0.0.9
 systemd-services 204-5ubuntu20.18
 sysv-rc 2.88dsf-41ubuntu6.3
 sysvinit-utils 2.88dsf-41ubuntu6.3
 tar 1.27.1-1
 tzdata 2016c-0ubuntu0.14.04
 ucf 3.0027+nmu1
 udev 204-5ubuntu20.18
 upstart 1.12.1-0ubuntu4.2
 util-linux 2.20.1-5.1ubuntu20.7
 uuid-runtime 2.20.1-5.1ubuntu20.7
 zlib1g 1:1.2.8.dfsg-1ubuntu1
DistroRelease: Ubuntu 14.04
InstallationDate: Installed on 2015-10-19 (169 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.16.0-69.89~14.04.1-generic 3.16.7-ckt25
Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
UpgradeStatus: No upgrade log present (probably fresh install)
_MarkForUpload: True

** Affects: linux-lts-utopic (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: regression-update trusty

** Tags added: regression-update trusty

** Description changed:

- So far I've seen this happen on 2 systems today. On one only X froze,
- the other one panicked:
+ So far I've seen this happen on 2 systems today. On one only X froze, the other one panicked.
+ Booting into 3.16.0-67 is the workaround for now
  
  ProblemType: KernelOops
  Annotation: Your system might become unstable now and might need to be restarted.
  Date: Wed Apr  6 09:57:21 2016
  Failure: oops
  OopsText:
-  BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
-  IP: [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
-  PGD 0 
-  Oops: 0002 [#1] SMP 
-  Modules linked in: xt_nat xt_tcpudp veth xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs arc4 md4 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm bnep bluetooth 6lowpan_iphc nls_utf8 cifs binfmt_misc fscache snd_hda_codec_via snd_hda_codec_generic radeon snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep joydev snd_pcm snd_seq_midi ttm snd_seq_midi_event drm_kms_helper drm snd_rawmidi snd_seq i2c_algo_bit snd_seq_device kvm snd_timer snd ppdev serio_raw soundcore shpchp lp edac_core edac_mce_amd i2c_nforce2 mac_hid parport_pc asus_atk0110 k10temp parport hid_cherry hid_generic usbhid pata_acpi hid psmouse sata_nv forcedeth pata_amd
-  CPU: 1 PID: 1543 Comm: Xorg Tainted: G           OE 3.16.0-69-generic #89~14.04.1-Ubuntu
-  Hardware name: System manufacturer System Product Name/M4N68T-M-V2, BIOS 0501    08/03/2010
-  task: ffff8800b9b45bb0 ti: ffff8800b9e28000 task.ti: ffff8800b9e28000
-  RIP: 0010:[<ffffffffc03b23ed>]  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
-  RSP: 0018:ffff8800b9e2bad0  EFLAGS: 00010286
-  RAX: 0000000000000000 RBX: ffff880035cf55f8 RCX: ffff880035cf4000
-  RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
-  RBP: ffff8800b9e2bbd0 R08: ffff880035cf4d08 R09: ffff880035cf4000
-  R10: 0000000000000000 R11: ffff8800b9e2bde8 R12: ffff880035cf5550
-  R13: ffff8800b9e2bba8 R14: ffff8800b9e2bb78 R15: 0000000000000020
-  FS:  00007f6e2ab398c0(0000) GS:ffff8801bfc40000(0000) knlGS:0000000000000000
-  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
-  CR2: 0000000000000008 CR3: 00000000b8192000 CR4: 00000000000007e0
-  Stack:
-   ffffffffc0414ad4 ffff8800b9b45bb0 ffff8800b9b45bb0 ffff880035cf4000
-   ffff8800b9e2bca8 0000edc0b9e2bb90 0000000000000000 0020000000000100
-   000000000004a8e0 ffff8800b9e2bb78 0000000000000000 0000000000000000
-  Call Trace:
-   [<ffffffffc0414ad4>] ? radeon_sa_bo_new+0x2b4/0x4f0 [radeon]
-   [<ffffffff8118fc68>] ? insert_pfn.isra.61+0x48/0xa0
-   [<ffffffffc03c7f43>] radeon_ib_get+0x33/0xe0 [radeon]
-   [<ffffffffc03ca67b>] radeon_cs_ioctl+0x14b/0x770 [radeon]
-   [<ffffffffc02be9ec>] drm_ioctl+0x1ec/0x660 [drm]
-   [<ffffffff8105bfbc>] ? __do_page_fault+0x20c/0x560
-   [<ffffffffc039604b>] radeon_drm_ioctl+0x4b/0x80 [radeon]
-   [<ffffffff811e8d80>] do_vfs_ioctl+0x2e0/0x4c0
-   [<ffffffff811e8fe1>] SyS_ioctl+0x81/0xa0
-   [<ffffffff8177258d>] system_call_fastpath+0x1a/0x1f
-  Code: dc 48 8b 3b 89 c1 44 89 e2 48 c7 c6 70 66 4a c0 31 c0 e8 d7 75 10 c1 eb c2 0f 1f 44 00 00 66 66 66 66 90 48 89 f8 ba 01 00 00 00 <f0> 0f c1 57 08 83 c2 01 83 fa 01 7e 01 c3 80 3d 5e 8b 11 00 00 
-  RIP  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
-   RSP <ffff8800b9e2bad0>
-  CR2: 0000000000000008
-  ---[ end trace 4dfa7ee83f5a67e2 ]---
-  
+  BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
+  IP: [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
+  PGD 0
+  Oops: 0002 [#1] SMP
+  Modules linked in: xt_nat xt_tcpudp veth xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs arc4 md4 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm bnep bluetooth 6lowpan_iphc nls_utf8 cifs binfmt_misc fscache snd_hda_codec_via snd_hda_codec_generic radeon snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep joydev snd_pcm snd_seq_midi ttm snd_seq_midi_event drm_kms_helper drm snd_rawmidi snd_seq i2c_algo_bit snd_seq_device kvm snd_timer snd ppdev serio_raw soundcore shpchp lp edac_core edac_mce_amd i2c_nforce2 mac_hid parport_pc asus_atk0110 k10temp parport hid_cherry hid_generic usbhid pata_acpi hid psmouse sata_nv forcedeth pata_amd
+  CPU: 1 PID: 1543 Comm: Xorg Tainted: G           OE 3.16.0-69-generic #89~14.04.1-Ubuntu
+  Hardware name: System manufacturer System Product Name/M4N68T-M-V2, BIOS 0501    08/03/2010
+  task: ffff8800b9b45bb0 ti: ffff8800b9e28000 task.ti: ffff8800b9e28000
+  RIP: 0010:[<ffffffffc03b23ed>]  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
+  RSP: 0018:ffff8800b9e2bad0  EFLAGS: 00010286
+  RAX: 0000000000000000 RBX: ffff880035cf55f8 RCX: ffff880035cf4000
+  RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
+  RBP: ffff8800b9e2bbd0 R08: ffff880035cf4d08 R09: ffff880035cf4000
+  R10: 0000000000000000 R11: ffff8800b9e2bde8 R12: ffff880035cf5550
+  R13: ffff8800b9e2bba8 R14: ffff8800b9e2bb78 R15: 0000000000000020
+  FS:  00007f6e2ab398c0(0000) GS:ffff8801bfc40000(0000) knlGS:0000000000000000
+  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+  CR2: 0000000000000008 CR3: 00000000b8192000 CR4: 00000000000007e0
+  Stack:
+   ffffffffc0414ad4 ffff8800b9b45bb0 ffff8800b9b45bb0 ffff880035cf4000
+   ffff8800b9e2bca8 0000edc0b9e2bb90 0000000000000000 0020000000000100
+   000000000004a8e0 ffff8800b9e2bb78 0000000000000000 0000000000000000
+  Call Trace:
+   [<ffffffffc0414ad4>] ? radeon_sa_bo_new+0x2b4/0x4f0 [radeon]
+   [<ffffffff8118fc68>] ? insert_pfn.isra.61+0x48/0xa0
+   [<ffffffffc03c7f43>] radeon_ib_get+0x33/0xe0 [radeon]
+   [<ffffffffc03ca67b>] radeon_cs_ioctl+0x14b/0x770 [radeon]
+   [<ffffffffc02be9ec>] drm_ioctl+0x1ec/0x660 [drm]
+   [<ffffffff8105bfbc>] ? __do_page_fault+0x20c/0x560
+   [<ffffffffc039604b>] radeon_drm_ioctl+0x4b/0x80 [radeon]
+   [<ffffffff811e8d80>] do_vfs_ioctl+0x2e0/0x4c0
+   [<ffffffff811e8fe1>] SyS_ioctl+0x81/0xa0
+   [<ffffffff8177258d>] system_call_fastpath+0x1a/0x1f
+  Code: dc 48 8b 3b 89 c1 44 89 e2 48 c7 c6 70 66 4a c0 31 c0 e8 d7 75 10 c1 eb c2 0f 1f 44 00 00 66 66 66 66 90 48 89 f8 ba 01 00 00 00 <f0> 0f c1 57 08 83 c2 01 83 fa 01 7e 01 c3 80 3d 5e 8b 11 00 00
+  RIP  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
+   RSP <ffff8800b9e2bad0>
+  CR2: 0000000000000008
+  ---[ end trace 4dfa7ee83f5a67e2 ]---
+ 
  Package: linux-image-3.16.0-69-generic 3.16.0-69.89~14.04.1
  SourcePackage: linux
  Tags: kernel-oops
  Uname: Linux 3.16.0-69-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  Dependencies:
-  adduser 3.113+nmu3ubuntu3
-  apt-utils 1.0.1ubuntu2.11
-  base-passwd 3.5.33
-  busybox-initramfs 1:1.21.0-1ubuntu1
-  coreutils 8.21-1ubuntu5.4
-  cpio 2.11+dfsg-1ubuntu1.2
-  dbus 1.6.18-0ubuntu4.3
-  debconf 1.5.51ubuntu2
-  debconf-i18n 1.5.51ubuntu2
-  debianutils 4.4
-  dmsetup 2:1.02.77-6ubuntu2
-  dpkg 1.17.5ubuntu5.5
-  e2fslibs 1.42.9-3ubuntu1.3
-  e2fsprogs 1.42.9-3ubuntu1.3
-  findutils 4.4.2-7
-  gcc-4.8-base 4.8.4-2ubuntu1~14.04.1
-  gcc-4.9-base 4.9.3-0ubuntu4
-  gettext-base 0.18.3.1-1ubuntu3
-  grub-common 2.02~beta2-9ubuntu1.7
-  grub-gfxpayload-lists 0.6
-  grub-pc 2.02~beta2-9ubuntu1.7
-  grub-pc-bin 2.02~beta2-9ubuntu1.7
-  grub2-common 2.02~beta2-9ubuntu1.7
-  ifupdown 0.7.47.2ubuntu4.4
-  initramfs-tools 0.103ubuntu4.3
-  initramfs-tools-bin 0.103ubuntu4.3
-  initscripts 2.88dsf-41ubuntu6.3
-  insserv 1.14.0-5ubuntu2
-  iproute2 3.12.0-2ubuntu1
-  isc-dhcp-client 4.2.4-7ubuntu12.4
-  isc-dhcp-common 4.2.4-7ubuntu12.4
-  klibc-utils 2.0.3-0ubuntu1
-  kmod 15-0ubuntu6
-  libacl1 2.2.52-1
-  libapparmor1 2.8.95~2430-0ubuntu5.3
-  libapt-inst1.5 1.0.1ubuntu2.11
-  libapt-pkg4.12 1.0.1ubuntu2.11
-  libasprintf0c2 0.18.3.1-1ubuntu3
-  libattr1 1:2.4.47-1ubuntu1
-  libaudit-common 1:2.3.2-2ubuntu1
-  libaudit1 1:2.3.2-2ubuntu1
-  libblkid1 2.20.1-5.1ubuntu20.7
-  libbz2-1.0 1.0.6-5
-  libc6 2.19-0ubuntu6.7
-  libcap2 1:2.24-0ubuntu2
-  libcgmanager0 0.24-0ubuntu7.5
-  libcomerr2 1.42.9-3ubuntu1.3
-  libdb5.3 5.3.28-3ubuntu3
-  libdbus-1-3 1.6.18-0ubuntu4.3
-  libdebconfclient0 0.187ubuntu1
-  libdevmapper1.02.1 2:1.02.77-6ubuntu2
-  libdrm2 2.4.64-1~ubuntu14.04.1
-  libexpat1 2.1.0-4ubuntu1.1
-  libfreetype6 2.5.2-1ubuntu2.5
-  libfuse2 2.9.2-4ubuntu4.14.04.1
-  libgcc1 1:4.9.3-0ubuntu4
-  libgpm2 1.20.4-6.1
-  libjson-c2 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
-  libjson0 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
-  libklibc 2.0.3-0ubuntu1
-  libkmod2 15-0ubuntu6
-  liblocale-gettext-perl 1.05-7build3
-  liblzma5 5.1.1alpha+20120614-2ubuntu2
-  libmount1 2.20.1-5.1ubuntu20.7
-  libncurses5 5.9+20140118-1ubuntu1
-  libncursesw5 5.9+20140118-1ubuntu1
-  libnih-dbus1 1.0.3-4ubuntu25
-  libnih1 1.0.3-4ubuntu25
-  libpam-modules 1.1.8-1ubuntu2.2
-  libpam-modules-bin 1.1.8-1ubuntu2.2
-  libpam-runtime 1.1.8-1ubuntu2.2
-  libpam-systemd 204-5ubuntu20.18
-  libpam0g 1.1.8-1ubuntu2.2
-  libpcre3 1:8.31-2ubuntu2.2
-  libplymouth2 0.8.8-0ubuntu17.1
-  libpng12-0 1.2.50-1ubuntu2.14.04.2
-  libprocps3 1:3.3.9-1ubuntu2.2
-  libselinux1 2.2.2-1ubuntu0.1
-  libsemanage-common 2.2-1
-  libsemanage1 2.2-1
-  libsepol1 2.2-1ubuntu0.1
-  libslang2 2.2.4-15ubuntu1
-  libss2 1.42.9-3ubuntu1.3
-  libstdc++6 4.8.4-2ubuntu1~14.04.1
-  libsystemd-daemon0 204-5ubuntu20.18
-  libsystemd-login0 204-5ubuntu20.18
-  libtext-charwidth-perl 0.04-7build3
-  libtext-iconv-perl 1.7-5build2
-  libtext-wrapi18n-perl 0.06-7
-  libtinfo5 5.9+20140118-1ubuntu1
-  libudev1 204-5ubuntu20.18
-  libustr-1.0-1 1.0.4-3ubuntu2
-  libuuid1 2.20.1-5.1ubuntu20.7
-  libxtables10 1.4.21-1ubuntu1
-  lsb-base 4.1+Debian11ubuntu6
-  makedev 2.3.1-93ubuntu1
-  module-init-tools 15-0ubuntu6
-  mount 2.20.1-5.1ubuntu20.7
-  mountall 2.53
-  multiarch-support 2.19-0ubuntu6.7
-  netbase 5.2
-  os-prober 1.63ubuntu1.1
-  passwd 1:4.1.5.1-1ubuntu9.2
-  perl-base 5.18.2-2ubuntu1.1
-  plymouth 0.8.8-0ubuntu17.1
-  plymouth-theme-ubuntu-text 0.8.8-0ubuntu17.1
-  procps 1:3.3.9-1ubuntu2.2
-  psmisc 22.20-1ubuntu2
-  sensible-utils 0.0.9
-  systemd-services 204-5ubuntu20.18
-  sysv-rc 2.88dsf-41ubuntu6.3
-  sysvinit-utils 2.88dsf-41ubuntu6.3
-  tar 1.27.1-1
-  tzdata 2016c-0ubuntu0.14.04
-  ucf 3.0027+nmu1
-  udev 204-5ubuntu20.18
-  upstart 1.12.1-0ubuntu4.2
-  util-linux 2.20.1-5.1ubuntu20.7
-  uuid-runtime 2.20.1-5.1ubuntu20.7
-  zlib1g 1:1.2.8.dfsg-1ubuntu1
+  adduser 3.113+nmu3ubuntu3
+  apt-utils 1.0.1ubuntu2.11
+  base-passwd 3.5.33
+  busybox-initramfs 1:1.21.0-1ubuntu1
+  coreutils 8.21-1ubuntu5.4
+  cpio 2.11+dfsg-1ubuntu1.2
+  dbus 1.6.18-0ubuntu4.3
+  debconf 1.5.51ubuntu2
+  debconf-i18n 1.5.51ubuntu2
+  debianutils 4.4
+  dmsetup 2:1.02.77-6ubuntu2
+  dpkg 1.17.5ubuntu5.5
+  e2fslibs 1.42.9-3ubuntu1.3
+  e2fsprogs 1.42.9-3ubuntu1.3
+  findutils 4.4.2-7
+  gcc-4.8-base 4.8.4-2ubuntu1~14.04.1
+  gcc-4.9-base 4.9.3-0ubuntu4
+  gettext-base 0.18.3.1-1ubuntu3
+  grub-common 2.02~beta2-9ubuntu1.7
+  grub-gfxpayload-lists 0.6
+  grub-pc 2.02~beta2-9ubuntu1.7
+  grub-pc-bin 2.02~beta2-9ubuntu1.7
+  grub2-common 2.02~beta2-9ubuntu1.7
+  ifupdown 0.7.47.2ubuntu4.4
+  initramfs-tools 0.103ubuntu4.3
+  initramfs-tools-bin 0.103ubuntu4.3
+  initscripts 2.88dsf-41ubuntu6.3
+  insserv 1.14.0-5ubuntu2
+  iproute2 3.12.0-2ubuntu1
+  isc-dhcp-client 4.2.4-7ubuntu12.4
+  isc-dhcp-common 4.2.4-7ubuntu12.4
+  klibc-utils 2.0.3-0ubuntu1
+  kmod 15-0ubuntu6
+  libacl1 2.2.52-1
+  libapparmor1 2.8.95~2430-0ubuntu5.3
+  libapt-inst1.5 1.0.1ubuntu2.11
+  libapt-pkg4.12 1.0.1ubuntu2.11
+  libasprintf0c2 0.18.3.1-1ubuntu3
+  libattr1 1:2.4.47-1ubuntu1
+  libaudit-common 1:2.3.2-2ubuntu1
+  libaudit1 1:2.3.2-2ubuntu1
+  libblkid1 2.20.1-5.1ubuntu20.7
+  libbz2-1.0 1.0.6-5
+  libc6 2.19-0ubuntu6.7
+  libcap2 1:2.24-0ubuntu2
+  libcgmanager0 0.24-0ubuntu7.5
+  libcomerr2 1.42.9-3ubuntu1.3
+  libdb5.3 5.3.28-3ubuntu3
+  libdbus-1-3 1.6.18-0ubuntu4.3
+  libdebconfclient0 0.187ubuntu1
+  libdevmapper1.02.1 2:1.02.77-6ubuntu2
+  libdrm2 2.4.64-1~ubuntu14.04.1
+  libexpat1 2.1.0-4ubuntu1.1
+  libfreetype6 2.5.2-1ubuntu2.5
+  libfuse2 2.9.2-4ubuntu4.14.04.1
+  libgcc1 1:4.9.3-0ubuntu4
+  libgpm2 1.20.4-6.1
+  libjson-c2 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
+  libjson0 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
+  libklibc 2.0.3-0ubuntu1
+  libkmod2 15-0ubuntu6
+  liblocale-gettext-perl 1.05-7build3
+  liblzma5 5.1.1alpha+20120614-2ubuntu2
+  libmount1 2.20.1-5.1ubuntu20.7
+  libncurses5 5.9+20140118-1ubuntu1
+  libncursesw5 5.9+20140118-1ubuntu1
+  libnih-dbus1 1.0.3-4ubuntu25
+  libnih1 1.0.3-4ubuntu25
+  libpam-modules 1.1.8-1ubuntu2.2
+  libpam-modules-bin 1.1.8-1ubuntu2.2
+  libpam-runtime 1.1.8-1ubuntu2.2
+  libpam-systemd 204-5ubuntu20.18
+  libpam0g 1.1.8-1ubuntu2.2
+  libpcre3 1:8.31-2ubuntu2.2
+  libplymouth2 0.8.8-0ubuntu17.1
+  libpng12-0 1.2.50-1ubuntu2.14.04.2
+  libprocps3 1:3.3.9-1ubuntu2.2
+  libselinux1 2.2.2-1ubuntu0.1
+  libsemanage-common 2.2-1
+  libsemanage1 2.2-1
+  libsepol1 2.2-1ubuntu0.1
+  libslang2 2.2.4-15ubuntu1
+  libss2 1.42.9-3ubuntu1.3
+  libstdc++6 4.8.4-2ubuntu1~14.04.1
+  libsystemd-daemon0 204-5ubuntu20.18
+  libsystemd-login0 204-5ubuntu20.18
+  libtext-charwidth-perl 0.04-7build3
+  libtext-iconv-perl 1.7-5build2
+  libtext-wrapi18n-perl 0.06-7
+  libtinfo5 5.9+20140118-1ubuntu1
+  libudev1 204-5ubuntu20.18
+  libustr-1.0-1 1.0.4-3ubuntu2
+  libuuid1 2.20.1-5.1ubuntu20.7
+  libxtables10 1.4.21-1ubuntu1
+  lsb-base 4.1+Debian11ubuntu6
+  makedev 2.3.1-93ubuntu1
+  module-init-tools 15-0ubuntu6
+  mount 2.20.1-5.1ubuntu20.7
+  mountall 2.53
+  multiarch-support 2.19-0ubuntu6.7
+  netbase 5.2
+  os-prober 1.63ubuntu1.1
+  passwd 1:4.1.5.1-1ubuntu9.2
+  perl-base 5.18.2-2ubuntu1.1
+  plymouth 0.8.8-0ubuntu17.1
+  plymouth-theme-ubuntu-text 0.8.8-0ubuntu17.1
+  procps 1:3.3.9-1ubuntu2.2
+  psmisc 22.20-1ubuntu2
+  sensible-utils 0.0.9
+  systemd-services 204-5ubuntu20.18
+  sysv-rc 2.88dsf-41ubuntu6.3
+  sysvinit-utils 2.88dsf-41ubuntu6.3
+  tar 1.27.1-1
+  tzdata 2016c-0ubuntu0.14.04
+  ucf 3.0027+nmu1
+  udev 204-5ubuntu20.18
+  upstart 1.12.1-0ubuntu4.2
+  util-linux 2.20.1-5.1ubuntu20.7
+  uuid-runtime 2.20.1-5.1ubuntu20.7
+  zlib1g 1:1.2.8.dfsg-1ubuntu1
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2015-10-19 (169 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.16.0-69.89~14.04.1-generic 3.16.7-ckt25
  Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
  UpgradeStatus: No upgrade log present (probably fresh install)
  _MarkForUpload: True

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1566726

Title:
  System freeze after update to 3.16.0-69-generic [NULL pointer
  reference in radeon_fence_ref]

Status in linux-lts-utopic package in Ubuntu:
  New

Bug description:
  So far I've seen this happen on 2 systems today. On one only X froze, the other one panicked.
  Booting into 3.16.0-67 is the workaround for now

  ProblemType: KernelOops
  Annotation: Your system might become unstable now and might need to be restarted.
  Date: Wed Apr  6 09:57:21 2016
  Failure: oops
  OopsText:
   BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
   IP: [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
   PGD 0
   Oops: 0002 [#1] SMP
   Modules linked in: xt_nat xt_tcpudp veth xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs arc4 md4 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm bnep bluetooth 6lowpan_iphc nls_utf8 cifs binfmt_misc fscache snd_hda_codec_via snd_hda_codec_generic radeon snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep joydev snd_pcm snd_seq_midi ttm snd_seq_midi_event drm_kms_helper drm snd_rawmidi snd_seq i2c_algo_bit snd_seq_device kvm snd_timer snd ppdev serio_raw soundcore shpchp lp edac_core edac_mce_amd i2c_nforce2 mac_hid parport_pc asus_atk0110 k10temp parport hid_cherry hid_generic usbhid pata_acpi hid psmouse sata_nv forcedeth pata_amd
   CPU: 1 PID: 1543 Comm: Xorg Tainted: G           OE 3.16.0-69-generic #89~14.04.1-Ubuntu
   Hardware name: System manufacturer System Product Name/M4N68T-M-V2, BIOS 0501    08/03/2010
   task: ffff8800b9b45bb0 ti: ffff8800b9e28000 task.ti: ffff8800b9e28000
   RIP: 0010:[<ffffffffc03b23ed>]  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
   RSP: 0018:ffff8800b9e2bad0  EFLAGS: 00010286
   RAX: 0000000000000000 RBX: ffff880035cf55f8 RCX: ffff880035cf4000
   RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
   RBP: ffff8800b9e2bbd0 R08: ffff880035cf4d08 R09: ffff880035cf4000
   R10: 0000000000000000 R11: ffff8800b9e2bde8 R12: ffff880035cf5550
   R13: ffff8800b9e2bba8 R14: ffff8800b9e2bb78 R15: 0000000000000020
   FS:  00007f6e2ab398c0(0000) GS:ffff8801bfc40000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 0000000000000008 CR3: 00000000b8192000 CR4: 00000000000007e0
   Stack:
    ffffffffc0414ad4 ffff8800b9b45bb0 ffff8800b9b45bb0 ffff880035cf4000
    ffff8800b9e2bca8 0000edc0b9e2bb90 0000000000000000 0020000000000100
    000000000004a8e0 ffff8800b9e2bb78 0000000000000000 0000000000000000
   Call Trace:
    [<ffffffffc0414ad4>] ? radeon_sa_bo_new+0x2b4/0x4f0 [radeon]
    [<ffffffff8118fc68>] ? insert_pfn.isra.61+0x48/0xa0
    [<ffffffffc03c7f43>] radeon_ib_get+0x33/0xe0 [radeon]
    [<ffffffffc03ca67b>] radeon_cs_ioctl+0x14b/0x770 [radeon]
    [<ffffffffc02be9ec>] drm_ioctl+0x1ec/0x660 [drm]
    [<ffffffff8105bfbc>] ? __do_page_fault+0x20c/0x560
    [<ffffffffc039604b>] radeon_drm_ioctl+0x4b/0x80 [radeon]
    [<ffffffff811e8d80>] do_vfs_ioctl+0x2e0/0x4c0
    [<ffffffff811e8fe1>] SyS_ioctl+0x81/0xa0
    [<ffffffff8177258d>] system_call_fastpath+0x1a/0x1f
   Code: dc 48 8b 3b 89 c1 44 89 e2 48 c7 c6 70 66 4a c0 31 c0 e8 d7 75 10 c1 eb c2 0f 1f 44 00 00 66 66 66 66 90 48 89 f8 ba 01 00 00 00 <f0> 0f c1 57 08 83 c2 01 83 fa 01 7e 01 c3 80 3d 5e 8b 11 00 00
   RIP  [<ffffffffc03b23ed>] radeon_fence_ref+0xd/0x50 [radeon]
    RSP <ffff8800b9e2bad0>
   CR2: 0000000000000008
   ---[ end trace 4dfa7ee83f5a67e2 ]---

  Package: linux-image-3.16.0-69-generic 3.16.0-69.89~14.04.1
  SourcePackage: linux
  Tags: kernel-oops
  Uname: Linux 3.16.0-69-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  Dependencies:
   adduser 3.113+nmu3ubuntu3
   apt-utils 1.0.1ubuntu2.11
   base-passwd 3.5.33
   busybox-initramfs 1:1.21.0-1ubuntu1
   coreutils 8.21-1ubuntu5.4
   cpio 2.11+dfsg-1ubuntu1.2
   dbus 1.6.18-0ubuntu4.3
   debconf 1.5.51ubuntu2
   debconf-i18n 1.5.51ubuntu2
   debianutils 4.4
   dmsetup 2:1.02.77-6ubuntu2
   dpkg 1.17.5ubuntu5.5
   e2fslibs 1.42.9-3ubuntu1.3
   e2fsprogs 1.42.9-3ubuntu1.3
   findutils 4.4.2-7
   gcc-4.8-base 4.8.4-2ubuntu1~14.04.1
   gcc-4.9-base 4.9.3-0ubuntu4
   gettext-base 0.18.3.1-1ubuntu3
   grub-common 2.02~beta2-9ubuntu1.7
   grub-gfxpayload-lists 0.6
   grub-pc 2.02~beta2-9ubuntu1.7
   grub-pc-bin 2.02~beta2-9ubuntu1.7
   grub2-common 2.02~beta2-9ubuntu1.7
   ifupdown 0.7.47.2ubuntu4.4
   initramfs-tools 0.103ubuntu4.3
   initramfs-tools-bin 0.103ubuntu4.3
   initscripts 2.88dsf-41ubuntu6.3
   insserv 1.14.0-5ubuntu2
   iproute2 3.12.0-2ubuntu1
   isc-dhcp-client 4.2.4-7ubuntu12.4
   isc-dhcp-common 4.2.4-7ubuntu12.4
   klibc-utils 2.0.3-0ubuntu1
   kmod 15-0ubuntu6
   libacl1 2.2.52-1
   libapparmor1 2.8.95~2430-0ubuntu5.3
   libapt-inst1.5 1.0.1ubuntu2.11
   libapt-pkg4.12 1.0.1ubuntu2.11
   libasprintf0c2 0.18.3.1-1ubuntu3
   libattr1 1:2.4.47-1ubuntu1
   libaudit-common 1:2.3.2-2ubuntu1
   libaudit1 1:2.3.2-2ubuntu1
   libblkid1 2.20.1-5.1ubuntu20.7
   libbz2-1.0 1.0.6-5
   libc6 2.19-0ubuntu6.7
   libcap2 1:2.24-0ubuntu2
   libcgmanager0 0.24-0ubuntu7.5
   libcomerr2 1.42.9-3ubuntu1.3
   libdb5.3 5.3.28-3ubuntu3
   libdbus-1-3 1.6.18-0ubuntu4.3
   libdebconfclient0 0.187ubuntu1
   libdevmapper1.02.1 2:1.02.77-6ubuntu2
   libdrm2 2.4.64-1~ubuntu14.04.1
   libexpat1 2.1.0-4ubuntu1.1
   libfreetype6 2.5.2-1ubuntu2.5
   libfuse2 2.9.2-4ubuntu4.14.04.1
   libgcc1 1:4.9.3-0ubuntu4
   libgpm2 1.20.4-6.1
   libjson-c2 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
   libjson0 0.11-4+deb.sury.org~trusty+2 [origin: LP-PPA-ondrej-php5-5.6]
   libklibc 2.0.3-0ubuntu1
   libkmod2 15-0ubuntu6
   liblocale-gettext-perl 1.05-7build3
   liblzma5 5.1.1alpha+20120614-2ubuntu2
   libmount1 2.20.1-5.1ubuntu20.7
   libncurses5 5.9+20140118-1ubuntu1
   libncursesw5 5.9+20140118-1ubuntu1
   libnih-dbus1 1.0.3-4ubuntu25
   libnih1 1.0.3-4ubuntu25
   libpam-modules 1.1.8-1ubuntu2.2
   libpam-modules-bin 1.1.8-1ubuntu2.2
   libpam-runtime 1.1.8-1ubuntu2.2
   libpam-systemd 204-5ubuntu20.18
   libpam0g 1.1.8-1ubuntu2.2
   libpcre3 1:8.31-2ubuntu2.2
   libplymouth2 0.8.8-0ubuntu17.1
   libpng12-0 1.2.50-1ubuntu2.14.04.2
   libprocps3 1:3.3.9-1ubuntu2.2
   libselinux1 2.2.2-1ubuntu0.1
   libsemanage-common 2.2-1
   libsemanage1 2.2-1
   libsepol1 2.2-1ubuntu0.1
   libslang2 2.2.4-15ubuntu1
   libss2 1.42.9-3ubuntu1.3
   libstdc++6 4.8.4-2ubuntu1~14.04.1
   libsystemd-daemon0 204-5ubuntu20.18
   libsystemd-login0 204-5ubuntu20.18
   libtext-charwidth-perl 0.04-7build3
   libtext-iconv-perl 1.7-5build2
   libtext-wrapi18n-perl 0.06-7
   libtinfo5 5.9+20140118-1ubuntu1
   libudev1 204-5ubuntu20.18
   libustr-1.0-1 1.0.4-3ubuntu2
   libuuid1 2.20.1-5.1ubuntu20.7
   libxtables10 1.4.21-1ubuntu1
   lsb-base 4.1+Debian11ubuntu6
   makedev 2.3.1-93ubuntu1
   module-init-tools 15-0ubuntu6
   mount 2.20.1-5.1ubuntu20.7
   mountall 2.53
   multiarch-support 2.19-0ubuntu6.7
   netbase 5.2
   os-prober 1.63ubuntu1.1
   passwd 1:4.1.5.1-1ubuntu9.2
   perl-base 5.18.2-2ubuntu1.1
   plymouth 0.8.8-0ubuntu17.1
   plymouth-theme-ubuntu-text 0.8.8-0ubuntu17.1
   procps 1:3.3.9-1ubuntu2.2
   psmisc 22.20-1ubuntu2
   sensible-utils 0.0.9
   systemd-services 204-5ubuntu20.18
   sysv-rc 2.88dsf-41ubuntu6.3
   sysvinit-utils 2.88dsf-41ubuntu6.3
   tar 1.27.1-1
   tzdata 2016c-0ubuntu0.14.04
   ucf 3.0027+nmu1
   udev 204-5ubuntu20.18
   upstart 1.12.1-0ubuntu4.2
   util-linux 2.20.1-5.1ubuntu20.7
   uuid-runtime 2.20.1-5.1ubuntu20.7
   zlib1g 1:1.2.8.dfsg-1ubuntu1
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2015-10-19 (169 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.16.0-69.89~14.04.1-generic 3.16.7-ckt25
  Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
  UpgradeStatus: No upgrade log present (probably fresh install)
  _MarkForUpload: True

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