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[LAva <1414349@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

My laptop has a kernel problem with the Ubuntu 14.10 live disk.

The Kernel reports constantly about a NULL pointer reference.

Sometimes the X-server and the Unity desktop is started, but the UI freezes constantly for a few seconds. 
It often ends with a complete freeze of the computer.

Other times the computer freezes before the desktop was loaded.

This bug report was created with the information of the Ubuntu 14.10
32bit live disk, but I also encountered the same problem with the Ubuntu
14.10 64bit live disk.

I think it could be the radeon driver for my ATI Mobility Radeon HD
5650.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-23-generic 3.16.0-23.31
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic i686
ApportVersion: 2.14.7-0ubuntu8
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ubuntu     4055 F.... pulseaudio
CasperVersion: 1.345
Date: Sat Jan 24 19:28:36 2015
LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release i386 (20141022.1)
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- BOOT_IMAGE=/casper/vmlinuz
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-23-generic N/A
 linux-backports-modules-3.16.0-23-generic  N/A
 linux-firmware                             1.138
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/16/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.25
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM41_CP
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.25:bd03/16/2011:svnAcer:pn:pvrV1.25:rvnAcer:rnJM41_CP:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.version: V1.25
dmi.sys.vendor: Acer

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: apport-bug i386 utopic

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1414349

Title:
  Kernel Oops - unable to handle kernel NULL pointer dereference at
  00000004; EIP is at drm_mm_remove_node+0x51/0xf0 [drm]

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  My laptop has a kernel problem with the Ubuntu 14.10 live disk.

  The Kernel reports constantly about a NULL pointer reference.

  Sometimes the X-server and the Unity desktop is started, but the UI freezes constantly for a few seconds. 
  It often ends with a complete freeze of the computer.

  Other times the computer freezes before the desktop was loaded.

  This bug report was created with the information of the Ubuntu 14.10
  32bit live disk, but I also encountered the same problem with the
  Ubuntu 14.10 64bit live disk.

  I think it could be the radeon driver for my ATI Mobility Radeon HD
  5650.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-23-generic 3.16.0-23.31
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic i686
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     4055 F.... pulseaudio
  CasperVersion: 1.345
  Date: Sat Jan 24 19:28:36 2015
  LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release i386 (20141022.1)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- BOOT_IMAGE=/casper/vmlinuz
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-23-generic N/A
   linux-backports-modules-3.16.0-23-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/16/2011
  dmi.bios.vendor: INSYDE
  dmi.bios.version: V1.25
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: JM41_CP
  dmi.board.vendor: Acer
  dmi.board.version: Base Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvrV1.25:bd03/16/2011:svnAcer:pn:pvrV1.25:rvnAcer:rnJM41_CP:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.version: V1.25
  dmi.sys.vendor: Acer

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