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[Bug 1546985] Re: BUG: unable to handle kernel paging request at ffff87ffb88dbf18

 

When this "NULL pointer deference" issue happens, the system still can be reached via SSH.
Please see the log file for dmesg output

** Attachment added: "kernel.log"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1546985/+attachment/4575478/+files/kernel.log

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https://bugs.launchpad.net/bugs/1546985

Title:
   BUG: unable to handle kernel paging request at ffff87ffb88dbf18

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Precise:
  New

Bug description:
  CID: 201011-6701

  Potential kernel regression found on this system while testing with 3.2.0-99-generic #139
  It will hang after the suspend/gpu_lockup_after_suspend test case

  Step:
  1. Install the system with satellite provisioning, with --proposed and the sru toolset
  2. Let it run for the SRU tests, or reproduce it manually with "plainbox run -i 'suspend/gpu_lockup_after_suspend'"

  The error message will pop up
   BUG: unable to handle kernel paging request at ffff87ffb88dbf18
  (This can be found in kern.log)

  Another type of error message is:
   BUG: unable to handle kernel NULL pointer dereference at 0000000000000033
  (This can't be found in kern.log)

  Please see the attachment for screenshots

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-99-generic 3.2.0-99.139
  ProcVersionSignature: Ubuntu 3.2.0-99.139-generic 3.2.76
  Uname: Linux 3.2.0-99-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.14
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1767 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf0420000 irq 44'
     Mixer name	: 'Intel IbexPeak HDMI'
     Components	: 'HDA:10ec0662,103c304b,00100101 HDA:80862804,103c304b,00100000'
     Controls      : 30
     Simple ctrls  : 13
  CurrentDmesg:
   [   25.233981] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
   [   35.533182] eth0: no IPv6 routers present
  Date: Thu Feb 18 06:18:23 2016
  HibernationDevice: RESUME=UUID=e3ead356-ab02-4971-ad9c-7eba91da86e7
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-99-generic root=UUID=f52105b5-6ded-4d73-95ce-582d2bb3d82c ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-99-generic N/A
   linux-backports-modules-3.2.0-99-generic  N/A
   linux-firmware                            1.79.18
  RfKill:
   
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/19/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 786H1 v01.07
  dmi.board.name: 304Bh
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr786H1v01.07:bd10/19/2010:svnHewlett-Packard:pn:pvr:rvnHewlett-Packard:rn304Bh:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.sys.vendor: Hewlett-Packard

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