I suggest to close this ticket until it's confirmed to be present in
precise or later.

** Changed in: thunderbird (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/928252

Title:
  thunderbird hang/100% cpu on start

Status in “thunderbird” package in Ubuntu:
  Invalid

Bug description:
  Sorry if this ends up being a duplicate of any other bug, but I
  searched through all similar issues and none seems to match the
  problem that occurs on my system.

  Sometimes when I start thunderbird (via unity launcher) it hangs
  consuming 100% cpu. The thunderbird window is visible then but
  completely empty. The menus are already there but not filled with any
  menu items. This lasts endless as far as I could see.

  If I look for the thunderbird processes there are actually two
  "thunderbird-bin", one being the child of the other one:

  oliver   31023     1  1 14:39 ?        00:00:04 
/usr/lib/thunderbird-9.0/thunderbird-bin
  oliver   31025 31023 98 14:39 ?        00:05:52 
/usr/lib/thunderbird-9.0/thunderbird-bin

  If I kill the dependent process (31025 in this example) thunderbird
  suddenly starts as expected and the CPU traffic is gone.

  The same sometimes happens with firefox, sometimes even while this is
  already running ok. I sometimes can trigger this behaviour by clicking
  an internet link in some other application (Gwibber for example),
  which will let an existing firefox open another tab. After that there
  are multiple processes of "firefox", the original one and the one that
  wants to open the clicked link. The new tab actually opens and loads
  the URL correctly, but the separate process remains consuming 100%
  cpu.

  If I then stop and start firefox again I have the same "empty window
  hang" like on thunderbird.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: thunderbird 9.0+build2-0ubuntu0.11.10.1
  ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
  Uname: Linux 3.0.0-15-generic x86_64
  NonfreeKernelModules: fglrx
  AddonCompatCheckDisabled: False
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  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:  oliver     2184 F.... pulseaudio
  BuildID: 20111229095251
  CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfc220000 irq 48'
     Mixer name : 'Conexant CX20561 (Hermosa)'
     Components : 'HDA:14f15051,17aa2100,00100000 
HDA:14f12c06,17aa2122,00100000'
     Controls      : 16
     Simple ctrls  : 8
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
7VHT16WW-1.06'
     Mixer name : 'ThinkPad EC 7VHT16WW-1.06'
     Components : ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Channel: release
  Date: Tue Feb  7 14:40:10 2012
  EcryptfsInUse: Yes
  ForcedLayersAccel: False
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  IpRoute:
   default via 10.1.1.1 dev eth0  proto static
   10.1.1.0/24 dev eth0  proto kernel  scope link  src 10.1.1.197  metric 1
   169.254.0.0/16 dev eth0  scope link  metric 1000
  ProcEnviron:
   PATH=(custom, user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=9.0/20111229095251 (Running)
  RunningIncompatibleAddons: False
  SourcePackage: thunderbird
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/26/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6FET82WW (3.12 )
  dmi.board.name: 20827SG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr6FET82WW(3.12):bd11/26/2009:svnLENOVO:pn20827SG:pvrThinkPadT500:rvnLENOVO:rn20827SG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20827SG
  dmi.product.version: ThinkPad T500
  dmi.sys.vendor: LENOVO

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