Forwarding this bug from Ubuntu reporter Barath.N.K:
http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/736134

[Problem]
Lockup on g41; it appears the driver attempts to reset the driver but fails for some reason.

[Original Description]
My ubuntu not  booting up......

[   27.168009] eth0: no IPv6 routers present
[   49.459409] render error detected, EIR: 0x00000010
[   49.459414]   IPEIR: 0x00000000
[   49.459415]   IPEHR: 0x00000000
[   49.459416]   INSTDONE: 0xfffffffe
[   49.459418]   INSTPS: 0x0001e000
[   49.459419]   INSTDONE1: 0xffffffff
[   49.459420]   ACTHD: 0x00000008
[   49.459422] page table error
[   49.459423]   PGTBL_ER: 0x00000002
[   49.459425] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic i686
Architecture: i386
Chipset: g41
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Wed Mar 16 19:32:03 2011
DistUpgraded: Log time: 2011-03-15 20:29:46.187641
DistroCodename: natty
DistroVariant: ubuntu
DumpSignature: (EIR: 0x00000010 ESR: 0x00000010 PGTBL_ER: 0x00000002 IPEHR: 0x01000000)
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
GraphicsCard:
Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e32] (rev 03) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device [8086:d613]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic root=UUID=e14f7d20-e2f1-4786-a809-a0306f82cdc3 ro single
ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic root=UUID=e14f7d20-e2f1-4786-a809-a0306f82cdc3 ro single
RelatedPackageVersions:
xserver-xorg             1:7.6~3ubuntu11
libdrm2                  2.4.23-1ubuntu3
xserver-xorg-video-intel 2:2.14.0-4ubuntu2
Renderer: Unknown
SourcePackage: xserver-xorg-video-intel
Title: [g41] GPU lockup (EIR: 0x00000010 ESR: 0x00000010 PGTBL_ER: 0x00000002 IPEHR: 0x01000000)
UpgradeStatus: Upgraded to natty on 2011-03-16 (0 days ago)
UserGroups:

dmi.bios.date: 01/08/2009
dmi.bios.vendor: Intel Corp.
dmi.bios.version: RQG4110H.86A.0009.2009.0108.1005
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DG41RQ
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE54511-203
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrRQG4110H.86A.0009.2009.0108.1005:bd01/08/2009:svn:pn:pvr:rvnIntelCorporation:rnDG41RQ:rvrAAE54511-203:cvn:ct3:cvr:
version.compiz: compiz 1:0.9.4-0ubuntu4
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu5