kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

William Anderson, this bug report is being closed due to your last
comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/925309/comments/11
regarding this being fixed with an update. For future reference you can
manage the status of your own bugs by clicking on the current status in
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box. You can learn more about bug statuses at
https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time
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future bugs you may find.

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

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https://bugs.launchpad.net/bugs/925309

Title:
  unkillable process consuming 100% cpu time

Status in “linux” package in Ubuntu:
  Invalid

Bug description:
  creating disk images with either VirtualBox or qemu-img causes the
  process to stop responding and consume 100% of the cpu of one core of
  the dual core processor. Kill -9 does not effect the process. the only
  way to stop it is to reboot the computer. i also encountered this with
  transmission at one point as well.

  on my system, to reproduce this, simply run the command:
  $ qemu-img create -f raw Ubuntu-11.04-desktop.img 5G

  this is supposed to create a five gigabyte raw disk image that i can
  install a copy of Ubuntu under qemu.

  also happens every time i try to create a disk image in VirtualBox.
  Start VirtualBox, and create a new virtual machine. give it a name,
  select the OS and version, memory size, virtual hard disk, create new
  disk. this starts the "virtual disk creation wizard', i choose the VDI
  image type, and elect to have all of the disk space allocated by
  checking fixed size. next choose the location and size. lastly, a
  summary is displayed, clicking on create causes a status dialog to pop
  up and VirtualBox starts to make the disk. shortly, the VBoxSVC
  process appears and after a time, consumes 100% cpu time.

  this bug is likely related to bug 913787 at
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/913787 . like
  Sampo, my home directory is encrypted. however, his dd command does
  not reproduce the bug for me.

  in my case, this issue seemed to apear after upgrading the kernel to
  3.0.0-15-generic, however while VirtualBox worked with 3.0.0-14 and
  older, this problem occures with qemu-img in 3.0.0-14 and -13 as well.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: qemu-kvm 0.14.1+noroms-0ubuntu6.2
  ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
  Uname: Linux 3.0.0-15-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Thu Feb  2 00:19:02 2012
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/qemu-img
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID        PID  PPID  C    SZ   RSS PSR STIME TTY          TIME CMD
  MachineType: LENOVO 2958
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.UTF-8
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-15-generic root=UUID=a6551c5d-43b4-4962-b132-0ddf59cb55ac ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
  SourcePackage: qemu-kvm
  UpgradeStatus: Upgraded to oneiric on 2012-01-14 (18 days ago)
  dmi.bios.date: 05/05/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 18CN45WW(V2.54)
  dmi.board.name: NITU1
  dmi.board.vendor: LENOVO
  dmi.board.version: REFERENCE
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnLENOVO:bvr18CN45WW(V2.54):bd05/05/2010:svnLENOVO:pn2958:pvrLenovoG550:rvnLENOVO:rnNITU1:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A:
  dmi.product.name: 2958
  dmi.product.version: Lenovo G550
  dmi.sys.vendor: LENOVO

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