Comment 22 for bug 946899

Read somewhere that this bug was fixed, so checked out CHANGES in the new kernel builds, Chris Wilson and Daniel Vetter among others are working with a lot of fixes for this driver. Hoping it was fixed somewhere among all those contributions, my system and logs related to the drm:i915_hangcheck_hung ERROR is printed below. However, upgrading reduced the *rate* of the error, but came back today. When working with Blender or Eclipse, programs using a lot of memory, system suddenly freeze. The mouse cursor is still movable, but the rest is frozen.

uname -a:
Linux robtu 3.8.0-030800rc7-generic #201302081635 SMP Fri Feb 8 21:57:43 UTC 2013 i686 i686 i686 GNU/Linux

syslog:
Feb 21 23:34:41 robtu kernel: [233139.352461] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung

kern.log:
Feb 21 23:34:41 robtu kernel: [233139.352461] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
Feb 21 23:34:41 robtu kernel: [233139.352468] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state

cat /debug/dri/0/i915_error_state:
no error state collected

dmesg:
[ 16.946953] i915 0000:00:02.0: setting latency timer to 64
[ 16.947317] i915 0000:00:02.0: irq 42 for MSI/MSI-X
[ 17.934259] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 17.934261] i915 0000:00:02.0: registered panic notifier
[ 18.234714] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0

lspci:
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

lshw:
             description: VGA compatible controller
             product: 2nd Generation Core Processor Family Integrated Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 09
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:42 memory:c0000000-c03fffff memory:b0000000-bfffffff ioport:2000(size=64)

BTW, this guy has claimed he has fixed the problem, anyone with "kernelpowers" here want to take a look?
http://www.quineloop.com/2012/05/26/intel-i915-gpu-hung-linux.html