[q35] GPU lockup (PGTBL_ER: 0x00000002 ESR: 0x00000010)

[SiscoGarcia]

I've upgraded Ubuntu 11.04 and when restarted it has crashed.

From GPU dump:
ACTHD: 0xffffffff
EIR: 0x00000000
EMR: 0xfffffffd
ESR: 0x00000010
PGTBL_ER: 0x00000002
IPEHR: 0x00000000
IPEIR: 0x00000000
INSTDONE: 0x7dffffc0
    busy: Framebuffer Compression

From dmesg:
[ 14.026947] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 14.026954] i915 0000:00:02.0: setting latency timer to 64
[ 14.039382] mtrr: type mismatch for d0000000,10000000 old: write-back new: write-combining
[ 14.039385] [drm] MTRR allocation failed. Graphics performance may suffer.
[ 14.040101] i915 0000:00:02.0: irq 43 for MSI/MSI-X
[ 14.040107] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 14.040109] [drm] Driver supports precise vblank timestamp query.
[ 14.048049] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 14.048456] [drm] initialized overlay support
[ 14.051890] render error detected, EIR: 0x00000010
[ 14.051893] page table error
[ 14.051895] PGTBL_ER: 0x00000002
[ 14.051897] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking
[ 14.051909] render error detected, EIR: 0x00000010
[ 14.051911] page table error
[ 14.051912] PGTBL_ER: 0x00000002
[ 14.140469] checking generic (d0000000 300000) vs hw (d0000000 10000000)
[ 14.140473] fb: conflicting fb hw usage inteldrmfb vs VESA VGA - removing generic driver
[ 14.140493] Console: switching to colour dummy device 80x25
[ 14.141214] Console: switching to colour frame buffer device 180x56
[ 14.141221] fb0: inteldrmfb frame buffer device
[ 14.141223] drm: registered panic notifier
[ 14.141665] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-intel 2:2.14.0-1ubuntu6
ProcVersionSignature: Ubuntu 2.6.38-2.29-generic 2.6.38-rc3
Uname: Linux 2.6.38-2-generic i686
Architecture: i386
Chipset: q35
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900 1400x1050 1280x1024 1280x1024 1440x900 1280x960 1152x921 1280x800 1152x864 1280x720 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
 edid-base64: AP///////wAhNAhgIw0AACkQAQMIKRp46rVlpFhJmSQRUFS/74CVD4GAgUCBwIEPcZCQTwEBxCKgoFCEGjAwIDYAmgERAAAeAAAA/ABYOTFXIEQtc3ViCiAgAAAA/QA4TB9UEAAKICAgICAgAAAA/wBYOTFXQzYwTDAzMzYzAG8=
Date: Mon Feb 7 10:55:26 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DumpSignature: aa9dd4a2 (PGTBL_ER: 0x00000002)
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
GraphicsCard:
 Subsystem: Dell OptiPlex 755 [1028:0211]
   Subsystem: Dell OptiPlex 755 [1028:0211]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110202)
InterpreterPath: /usr/bin/python2.7
MachineType: Dell Inc. OptiPlex 755
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-2-generic root=UUID=eaab1957-85b9-43ea-a6ff-20417190c637 ro quiet splash vt.handoff=7
ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-2-generic root=UUID=eaab1957-85b9-43ea-a6ff-20417190c637 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.6~3ubuntu3
 libdrm2 2.4.23-1ubuntu3
 xserver-xorg-video-intel 2:2.14.0-1ubuntu6
SourcePackage: xserver-xorg-video-intel
Title: [q35] GPU lockup aa9dd4a2 (PGTBL_ER: 0x00000002)
UserGroups:

dmi.bios.date: 08/04/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0PU052
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd08/04/2008:svnDellInc.:pnOptiPlex755:pvr:rvnDellInc.:rn0PU052:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 755
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.2.1+glibmainloop4-0ubuntu9
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

[Bryce Harrington (bryce)]

Did the system actually lock up on you requiring a power cycle? Or did it display this error dialog but you didn't notice anything wrong?

It looks from the logs like it locked up but then automatically recovered itself. (Which I think is a bug we already know of.)

[SiscoGarcia (sisco)]

I'm not in front of that machine at the moment, but I think the error was displayed for some times (4 or 5) and then the machine worked usually.

In fact, I didn't notice anything wrong.