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Old 24th August 2012
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jggimi jggimi is offline
More noise than signal
 
Join Date: May 2008
Location: USA
Posts: 6,231
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There is the possibility that a fix is available with -current today, and will be part of 5.2-release, expected on or about 1 November 2012.

You could test this by installing or upgrading a -current snapshot. Be sure to back up your system, upgrades are one-way, you will not be able to downgrade.
Code:
revision 1.121
date: 2012/05/21 20:14:18;  author: kettenis;  state: Exp;  lines: +4 -1
Always clear out the inactive list and make sure everything is unbound in
i915_gem_idle().  If we don't do that we end up with stale entries on the
inactive list which will panic the kernel the next time we use the list.

Fixes restarting X on Sandy Bridge.
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