Public bug reported:
I'm a developer, so I often run two IDEs, have music playing (either
flash or via rhythmbox), 15 or 20 chromium tabs open, postgres running,
and one or two java webapps running. As you can imagine, this can create
high load. Once I hit "99% load" (as indicated by the CPU monitor
screenlet, at least), my system effectively freezes up; the mouse stops
moving (it becomes laggy anywhere over 95%), music stops playing, the
hard disks stop spinning/seeking (at least audibly), windows dim
(showing that they're inactive), and my PC effectively becomes a brick.
I've waited 10 or 15 minutes under these circumstances with nothing
resurrecting itself; the only reliable way to recover is to sysrq eub
(which always works, so this is not a kernel lock of some sort).
Just to preempt a possible response, I don't think "do less" is an
acceptable answer here. I have a quad core PC with 4GB of RAM and a
512MB GPU; it's not the most recent machine ever, but it's not shabby
either. (I also experience the same issue on my dual core laptop with
SSDs.) It's the 21st century; I shouldn't be experiencing freezeup by
pushing my computer to the max; if this isn't a bug (which it may well
be), then it should be a high priority feature to make process
management better on the desktop. The UI should always take priority on
desktop installs.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7.1
ProcVersionSignature: Ubuntu 3.0.0-15.26-generic-pae 3.0.13
Uname: Linux 3.0.0-15-generic-pae i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX x86 Kernel Module 280.13 Wed Jul 27 16:55:43 PDT
2011
GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
.tmp.unity.support.test.0:
ApportVersion: 1.23-0ubuntu4
Architecture: i386
CompizPlugins:
[core,bailer,detection,composite,opengl,decor,compiztoolbox,imgpng,resize,place,regex,snap,grid,move,mousepoll,vpswitch,gnomecompat,session,animation,unitymtgrabhandles,expo,wall,fade,ezoom,scale,workarounds,switcher]
CompositorRunning: compiz
Date: Fri Feb 3 08:12:26 2012
DistUpgraded: Log time: 2011-10-15 08:14:39.895118
DistroCodename: oneiric
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
nVidia Corporation G92 [GeForce 8800 GT] [10de:0611] (rev a2) (prog-if 00 [VGA
controller])
Subsystem: eVga.com. Corp. Device [3842:c800]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
JockeyStatus:
xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled,
Not in use)
xorg:nvidia_173_updates - NVIDIA accelerated graphics driver (post-release
updates) (Proprietary, Disabled, Not in use)
xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary,
Enabled, In use)
xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release
updates) (Proprietary, Disabled, Not in use)
MachineType: System manufacturer System Product Name
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-15-generic-pae
root=UUID=ae823574-8ab0-4e39-8f17-afc96a359d1f ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to oneiric on 2011-10-15 (110 days ago)
dmi.bios.date: 03/17/2008
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: ASUS P5N-E SLI ACPI BIOS Revision 1002
dmi.board.name: P5N-E SLI
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.XX
dmi.chassis.asset.tag: 123456789000
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnPhoenixTechnologies,LTD:bvrASUSP5N-ESLIACPIBIOSRevision1002:bd03/17/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5N-ESLI:rvr1.XX:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20110411+8378443-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug compiz-0.9 i386 oneiric ubuntu
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https://bugs.launchpad.net/bugs/926042
Title:
Graphical environment becomes laggy and then freezes under high load
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