kernel-packages team mailing list archive

[Dario Bertero <anrvrx@xxxxxxxxx>]

apport information

** Attachment added: "WifiSyslog.txt"
   https://bugs.launchpad.net/bugs/1507338/+attachment/4499646/+files/WifiSyslog.txt

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1507338

Title:
  System freeze with long strings of NUL characters (^@) in the logs

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Experienced a system freeze. It was not possible to use the keyboard
  or the touchpad, it was possible to move the cursor using an USB mouse
  attached, but clicking had no effect. The strange thing is that at the
  time of the freeze /var/log/syslog and /var/log/kern.log displayed
  long strings of NUL bytes (^@).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: unity-services 7.3.2+15.10.20151016-0ubuntu1
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CurrentDesktop: Unity
  Date: Mon Oct 19 00:29:25 2015
  ExecutablePath: /usr/lib/unity/unity-panel-service
  InstallationDate: Installed on 2015-08-22 (57 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  ProcEnviron:
   PATH=(custom, no user)
   SHELL=/bin/bash
   LANG=en_HK.UTF-8
   LANGUAGE=en_HK:en
   XDG_RUNTIME_DIR=<set>
  SourcePackage: unity
  UpgradeStatus: Upgraded to wily on 2015-10-16 (2 days ago)
  --- 
  ApportVersion: 2.19.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  brtdra     1818 F.... pulseaudio
   /dev/snd/controlC0:  brtdra     1818 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.10
  HibernationDevice: RESUME=UUID=7c657863-dc0e-432f-9b9d-9bc4395cdf1c
  InstallationDate: Installed on 2015-08-22 (57 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: LENOVO 20CMCTO1WW
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=da47e804-2239-47b1-a6d1-493ccca12588 ro noprompt persistent quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  Tags:  wily
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.2.0-16-generic x86_64
  UpgradeStatus: Upgraded to wily on 2015-10-16 (2 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/19/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET36W (1.15 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CMCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0K11826 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvrSDK0K11826WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CMCTO1WW
  dmi.product.version: ThinkPad X250
  dmi.sys.vendor: LENOVO

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