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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=54226#c59">Comment # 59</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=54226">bug 54226</a>
from <span class="vcard"><a class="email" href="mailto:mikhail.v.gavrilov@gmail.com" title="mikhail.v.gavrilov@gmail.com">mikhail.v.gavrilov@gmail.com</a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=76261" name="attach_76261" title="i915_error_state (kernel 3.8.2 Fedora) with path (write mbox regs twice on snb, v2)">attachment 76261</a> <a href="attachment.cgi?id=76261&action=edit" title="i915_error_state (kernel 3.8.2 Fedora) with path (write mbox regs twice on snb, v2)">[details]</a></span>
i915_error_state (kernel 3.8.2 Fedora) with path (write mbox regs twice on snb,
v2)
"write mbox regs twice on snb, v2" patch also not solve problem.
[ 1399.270341] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU
hung
[ 1399.270345] [drm] capturing error event; look for more information in
/debug/dri/0/i915_error_state
[ 1399.277331] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for
forcewake old ack to clear.</pre>
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