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[florin <994920@xxxxxxxxxxxxxxxxxx>]

Sorry, I now use Ubuntu 13.10. This bug is old school, not active in
newer kernels :) Thanks!

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https://bugs.launchpad.net/bugs/994920

Title:
  Disable network / Enable network makes system hang up for a while

Status in The Linux Kernel:
  Incomplete
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  This is like many others, a very old bug and it is still unsolved,
  although it is very easy to reproduce it. I am a young linux user, but
  I could see it in Natty, Oneiric and now I tested it in Precise, both
  with the standard kernel and the latest RC.

  uname -a
  Linux florin-Satellite-C650 3.4.0-030400rc5-generic #201205011817 SMP Tue May 1 22:18:19 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

  How to reproduce it:
  1. Click the Network icon on top bar
  2. Go to Disable network and press it
  See the system hangs up for half a minute or more. Nothing moves, not even the mouse pointer.

  
  Exactly the same when you Enable Network from that place.
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  florin     1787 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd6400000 irq 43'
     Mixer name	: 'Conexant CX20585'
     Components	: 'HDA:14f15069,1179fde2,00100302'
     Controls      : 8
     Simple ctrls  : 5
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=7352ae09-637f-484f-9d39-2164fed542cc
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 004: ID 10f1:1a2a Importek
  MachineType: TOSHIBA Satellite C650
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=783a052b-6e04-40de-8285-da77271a129f ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  StagingDrivers: mei
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  dmi.bios.date: 03/16/2011
  dmi.bios.vendor: INSYDE
  dmi.bios.version: 1.90
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Portable PC
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvr1.90:bd03/16/2011:svnTOSHIBA:pnSatelliteC650:pvrPSC14E-00400MG5:rvnTOSHIBA:rnPortablePC:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: Satellite C650
  dmi.product.version: PSC14E-00400MG5
  dmi.sys.vendor: TOSHIBA

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