Comment 9 for bug 419264

Forwarding this bug from Ubuntu:
https://bugs.edge.launchpad.net/ubuntu/+bug/419264

[Problem]
Compiz locks up system using 100% cpu and preventing mouse or keyboard input until it is killed when running with recent git snapshots of libdrm and mesa. Downgrading to mesa 7.5 and libdrm 2.4.12 the issue goes away.

[Original Report]
compiz eats 100% of the CPU even after restarting ! only kill -9 is able to close th crazy compiz process.

ProblemType: Bug
Architecture: i386
CompizPlugins: [core,ccp,dbus,place,mousepoll,gnomecompat,move,resize,decoration,png,svg,imgjpeg,text,neg,video,wall,snap,animation,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,extrawm,fade,session,shift,wobbly]
Date: Wed Aug 26 17:47:57 2009
DistroRelease: Ubuntu 9.10
MachineType: LENOVO 8933Y16
Package: compiz 1:0.8.2-0ubuntu16
PackageArchitecture: all
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-7-generic root=UUID=8920ca3c-8a9b-4b68-893c-1fec8a7cf652 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-7.27-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu2
 libdrm2 2.4.12+git20090801.45078630-0ubuntu1
 xserver-xorg-video-intel 2:2.8.0-0ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu6
SourcePackage: compiz
Uname: Linux 2.6.31-7-generic i686
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 06/28/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7OET24WW (1.03 )
dmi.board.name: 8933Y16
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:bvr7OET24WW(1.03):bd06/28/2007:svnLENOVO:pn8933Y16:pvrThinkPadR61/R61i:rvnLENOVO:rn8933Y16:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 8933Y16
dmi.product.version: ThinkPad R61/R61i
dmi.sys.vendor: LENOVO
system: distro = Ubuntu, architecture = i686, kernel = 2.6.31-7-generic