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[Bug 880803] [NEW] xml parser error makes firefox crashing

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Public bug reported:

Hello,

I was debugging some xml files when I found that, each time there are a parse error, the interface turns freezing and the CPU used by firefox is  above 100% (typically 101%).
Then the only thing it seems I can do is kill the process then restart it. I actually tried to close the tab, then open e new one but the interface is just like freezing due to the CPU usage level; and the problem actually does remain for the URL that caused the "crash", even (all right) if I fixed the xml problem before reloading.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 7.0.1+build1+nobinonly-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: wl
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  unomadh    1671 F.... pulseaudio
BuildID: 20111008085652
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xb4400000 irq 43'
   Mixer name	: 'Intel IbexPeak HDMI'
   Components	: 'HDA:111d7605,103c146a,00100402 HDA:80862804,80860101,00100000'
   Controls      : 18
   Simple ctrls  : 10
Channel: release
Date: Mon Oct 24 13:29:14 2011
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
IpRoute:
 default via 192.168.98.254 dev eth0  proto static 
 169.254.0.0/16 dev eth0  scope link  metric 1000 
 192.168.98.0/24 dev eth0  proto kernel  scope link  src 192.168.98.10  metric 1
ProcEnviron:
 LANGUAGE=fr:en
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 LC_MESSAGES=fr_FR.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=7.0.1/20111008085652
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to oneiric on 2011-10-19 (5 days ago)
dmi.bios.date: 07/08/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.11
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 146A
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 58.1F
dmi.chassis.asset.tag: CNU03800G7
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.11:bd07/08/2010:svnHewlett-Packard:pnHPPaviliondm4NotebookPC:pvr058B110000242B10000020100:rvnHewlett-Packard:rn146A:rvr58.1F:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion dm4 Notebook PC
dmi.product.version: 058B110000242B10000020100
dmi.sys.vendor: Hewlett-Packard

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oneiric running-unity

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https://bugs.launchpad.net/bugs/880803

Title:
  xml parser error makes firefox crashing

Status in “firefox” package in Ubuntu:
  New

Bug description:
  Hello,

  I was debugging some xml files when I found that, each time there are a parse error, the interface turns freezing and the CPU used by firefox is  above 100% (typically 101%).
  Then the only thing it seems I can do is kill the process then restart it. I actually tried to close the tab, then open e new one but the interface is just like freezing due to the CPU usage level; and the problem actually does remain for the URL that caused the "crash", even (all right) if I fixed the xml problem before reloading.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: firefox 7.0.1+build1+nobinonly-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: wl
  AddonCompatCheckDisabled: False
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  unomadh    1671 F.... pulseaudio
  BuildID: 20111008085652
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xb4400000 irq 43'
     Mixer name	: 'Intel IbexPeak HDMI'
     Components	: 'HDA:111d7605,103c146a,00100402 HDA:80862804,80860101,00100000'
     Controls      : 18
     Simple ctrls  : 10
  Channel: release
  Date: Mon Oct 24 13:29:14 2011
  ForcedLayersAccel: False
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  IpRoute:
   default via 192.168.98.254 dev eth0  proto static 
   169.254.0.0/16 dev eth0  scope link  metric 1000 
   192.168.98.0/24 dev eth0  proto kernel  scope link  src 192.168.98.10  metric 1
  ProcEnviron:
   LANGUAGE=fr:en
   PATH=(custom, no user)
   LANG=fr_FR.UTF-8
   LC_MESSAGES=fr_FR.UTF-8
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=7.0.1/20111008085652
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  UpgradeStatus: Upgraded to oneiric on 2011-10-19 (5 days ago)
  dmi.bios.date: 07/08/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.11
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 146A
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 58.1F
  dmi.chassis.asset.tag: CNU03800G7
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.11:bd07/08/2010:svnHewlett-Packard:pnHPPaviliondm4NotebookPC:pvr058B110000242B10000020100:rvnHewlett-Packard:rn146A:rvr58.1F:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion dm4 Notebook PC
  dmi.product.version: 058B110000242B10000020100
  dmi.sys.vendor: Hewlett-Packard

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