Reproduced with 3.9.8, but recovered from hang, thanks Martin D. Weinberg

akarollil@akarollil-desktop:~$ uname -a
Linux akarollil-desktop 3.9.8-030908-generic #201307010556 SMP Mon Jul 1 10:04:25 UTC 2013 i686 i686 i686 GNU/Linux

akarollil@akarollil-desktop:~$ cat /var/log/kern.log | grep -a drm
Jul 16 11:36:29 akarollil-desktop kernel: [527805.031515] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
Jul 16 11:36:29 akarollil-desktop kernel: [527805.031519] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
Jul 16 11:48:55 akarollil-desktop kernel: [   32.669425] [drm] Initialized drm 1.1.0 20060810
Jul 16 11:48:55 akarollil-desktop kernel: [   33.088095] [drm] Memory usable by graphics device = 2048M
Jul 16 11:48:55 akarollil-desktop kernel: [   33.088312] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
Jul 16 11:48:55 akarollil-desktop kernel: [   33.088313] [drm] Driver supports precise vblank timestamp query.
Jul 16 11:48:55 akarollil-desktop kernel: [   33.634065] fbcon: inteldrmfb (fb0) is primary device
Jul 16 11:48:55 akarollil-desktop kernel: [   34.104124] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Jul 16 11:48:55 akarollil-desktop kernel: [   34.105796] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Jul 16 11:48:55 akarollil-desktop kernel: [   34.784038] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Jul 16 12:18:53 akarollil-desktop kernel: [   30.028372] [drm] Initialized drm 1.1.0 20060810
Jul 16 12:18:53 akarollil-desktop kernel: [   30.453101] [drm] Memory usable by graphics device = 2048M
Jul 16 12:18:53 akarollil-desktop kernel: [   30.453384] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
Jul 16 12:18:53 akarollil-desktop kernel: [   30.453385] [drm] Driver supports precise vblank timestamp query.
Jul 16 12:18:53 akarollil-desktop kernel: [   30.469099] [drm] Wrong MCH_SSKPD value: 0x16040307
Jul 16 12:18:53 akarollil-desktop kernel: [   30.469101] [drm] This can cause pipe underruns and display issues.
Jul 16 12:18:53 akarollil-desktop kernel: [   30.469102] [drm] Please upgrade your BIOS to fix this.
Jul 16 12:18:53 akarollil-desktop kernel: [   30.549048] fbcon: inteldrmfb (fb0) is primary device
Jul 16 12:18:53 akarollil-desktop kernel: [   31.015247] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Jul 16 12:18:53 akarollil-desktop kernel: [   31.016753] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Jul 16 12:18:53 akarollil-desktop kernel: [   31.798905] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Jul 16 16:17:02 akarollil-desktop kernel: [   32.084239] [drm] Initialized drm 1.1.0 20060810
Jul 16 16:17:02 akarollil-desktop kernel: [   32.433337] [drm] Memory usable by graphics device = 2048M
Jul 16 16:17:02 akarollil-desktop kernel: [   32.433553] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
Jul 16 16:17:02 akarollil-desktop kernel: [   32.433554] [drm] Driver supports precise vblank timestamp query.
Jul 16 16:17:02 akarollil-desktop kernel: [   32.448662] [drm] Wrong MCH_SSKPD value: 0x16040307
Jul 16 16:17:02 akarollil-desktop kernel: [   32.448665] [drm] This can cause pipe underruns and display issues.
Jul 16 16:17:02 akarollil-desktop kernel: [   32.448666] [drm] Please upgrade your BIOS to fix this.
Jul 16 16:17:02 akarollil-desktop kernel: [   32.528289] fbcon: inteldrmfb (fb0) is primary device
Jul 16 16:17:02 akarollil-desktop kernel: [   33.010533] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Jul 16 16:17:02 akarollil-desktop kernel: [   33.011776] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Jul 16 16:17:02 akarollil-desktop kernel: [   33.774141] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Jul 17 15:02:48 akarollil-desktop kernel: [81904.667060] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
Jul 17 15:02:48 akarollil-desktop kernel: [81904.667064] [drm] capturing error event; look for more information in/sys/kernel/debug/dri/0/i915_error_state

Attaching i915_error_state