[Bug 54226] [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54226

--- Comment #31 from Daniel Vetter <daniel at ffwll.ch> ---
Created attachment 73560
  --> https://bugs.freedesktop.org/attachment.cgi?id=73560&action=edit
write mbox regs twice on snb

Another piece of magic which might help. Please test this patch and the one
from Chris ("Read back semaphore mboxes after update") separately and report
back whether anything changes.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130124/fcdfc2ea/attachment.html>