[Bug 967469] [NEW] firefox+unity-2d: runaway CPU usage when hud-service is running

[Steve Langasek]

Public bug reported:

When hud-service is running, my desktop load looks like this:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 8222 vorlon    20   0 1937m 874m  20m R  102 23.3 263:06.78 firefox            
 5148 vorlon    20   0 1146m 449m 7288 S   41 12.0  24:25.24 unity-panel-ser    
 3306 vorlon    20   0  757m 326m 3444 S   21  8.7   0:15.26 hud-service        

If I kill hud-service, after a while firefox settles down and it looks
more like this:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND            
 8222 vorlon    20   0 1927m 872m  21m S   10 23.2 263:59.29 firefox            
 4777 root      20   0  269m  61m  17m S    3  1.7  33:41.11 Xorg               

While the CPU is pegged, the firefox UI is unresponsive.

This seems to be correlated with whether I have a form loaded in one of
my firefox tabs, but I haven't confirmed that definitively yet.

I am using Unity 2D, if that matters.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox 11.0+build1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
BuildID: 20120313141247
Channel: release
CheckboxSubmission: 017452a27eca3c8b498abbfa5ef91db9
CheckboxSystem: ecaaad6fa1e0799a0aa1126bf620f39e
Date: Wed Mar 28 12:40:00 2012
ForcedLayersAccel: False
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=11.0/20120313141247 (Running)
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to precise on 2011-11-08 (141 days ago)
WifiSyslog:
 
dmi.bios.date: 08/23/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET52WW (1.22 )
dmi.board.name: 3249CTO
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:bvr6QET52WW(1.22):bd08/23/2010:svnLENOVO:pn3249CTO:pvrThinkPadX201:rvnLENOVO:rn3249CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 3249CTO
dmi.product.version: ThinkPad X201
dmi.sys.vendor: LENOVO

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


** Tags: amd64 apport-bug precise release-channel

-- 
You received this bug notification because you are a member of Mozilla
Bugs, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/967469

Title:
  firefox+unity-2d: runaway CPU usage when hud-service is running

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/967469/+subscriptions