[Bug 695375] Re: ubuntu crashes when unplugging power cable after unplugging network cable

[Launchpad Bug Tracker]

*** This bug is a duplicate of bug 414541 ***
    https://bugs.launchpad.net/bugs/414541

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: udev (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/695375

Title:
  ubuntu crashes when unplugging power cable after unplugging network
  cable

Status in “udev” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: acpi

  Steps to reproduce:
  1 - Make sure laptop/netbook is connected to power
  2 - Boot Ubuntu
  3 - Connect to a network using network cable
  4 - Unplug network cable (physically disconnect from laptop/netbook)
  5 - Unplug power cable

  Result:
  Ubuntu crashes/hangs/freezes.
  Laptop needs to be shut down by force.

  Notes:
  - This crash only happens if at some point a network cable is connected to the computer.
  - It's possible to have either the network cable or the power cable unplugged (also alternatively) various times without issue, but if at some point both are disconnected Ubuntu crashes.
  - This issue has been reported previously for previous versions of Ubuntu, I was however unable to retrieve any original bug report. If I remember correctly the bug report was closed because starting from 9,04 (I think) the issue disappeared miraculously. However it's now back (I believe since 10.04)
  - Tested on HP Mini 1020LA

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: acpi (not installed)
  ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
  Uname: Linux 2.6.35-24-generic i686
  NonfreeKernelModules: wl
  Architecture: i386
  Date: Wed Dec 29 14:16:20 2010
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  SourcePackage: acpi
  --- 
  Architecture: i386
  DistroRelease: Ubuntu 10.10
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  MachineType: Hewlett-Packard HP Mini
  NonfreeKernelModules: wl
  Package: udev 162-2.2
  PackageArchitecture: i386
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-24-generic root=UUID=4954ddd8-7164-4533-b2c4-713e133c4ee9 ro quiet splash
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
  Tags: maverick
  Uname: Linux 2.6.35-24-generic i686
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 09/26/2008
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 361A0 Ver. F.02
  dmi.board.name: 361A
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 02.0C
  dmi.chassis.asset.tag: CNU8445GYT
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr361A0Ver.F.02:bd09/26/2008:svnHewlett-Packard:pnHPMini:pvrF.02:rvnHewlett-Packard:rn361A:rvrKBCVersion02.0C:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP Mini
  dmi.product.version: F.02
  dmi.sys.vendor: Hewlett-Packard

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