Created attachment 115168 [details]
Crashdump saved at /sys/class/drm/card0/error

Overview: Used a website with OpenGL, GPU hangs

Steps to reproduce: 1) Open http://inear.se/lathe/ in Iceweasel
2) Play around on this webpage

Actual Results: Browser crashes, warning about hanging GPU appears in Kernel Ring Buffer:
[50774.872342] [drm] stuck on render ring
[50774.873005] [drm] GPU HANG: ecode 0:0x85ff7c02, in iceweasel [1808], reason: Ring hung, action: reset
[50774.873007] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[50774.873008] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[50774.873009] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[50774.873010] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[50774.873012] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[50776.873995] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[50809.865326] [drm] stuck on render ring
[50809.865955] [drm] GPU HANG: ecode 0:0x85ff6c3a, in chromium [17323], reason: Ring hung, action: reset
[50811.867040] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[50876.944888] [drm] stuck on render ring
[50876.945531] [drm] GPU HANG: ecode 0:0x85ff7c1a, in iceweasel [1808], reason: Ring hung, action: reset
[50878.946563] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[50886.953176] [drm] stuck on render ring
[50886.953837] [drm] GPU HANG: ecode 0:0x85ff7c02, in iceweasel [1808], reason: Ring hung, action: reset
[50887.217700] Chrome_ChildThr[15839]: segfault at 0 ip 00007f06389c8289 sp 00007f06301e6450 error 6 in libmozalloc.so[7f06389c7000+2000]
[50888.954887] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off

Expected Results: Actions on the website.

Additional Information: Using Version 2.4.58-2 of libdrm-intel1:amd64 on Debian Jessie, GPU crash dump attached.