http://bugs.freedesktop.org/show_bug.cgi?id=15203





--- Comment #5 from Jerome Glisse <[EMAIL PROTECTED]>  2008-03-27 07:39:36 PST 
---
(In reply to comment #4)
> Created an attachment (id=15493)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=15493) [details]
> mesa patch
> 
> This patch makes the lockup gone. I have absolutely no clue why. I just knew
> RADEON_DEBUG=sync fixes the lockup. So I peppered the source with
> radeonWaitForIdle until I found this hack
> 

This means that this lockup is due to sync problem. My wild guess is that we
write a register that shouldn't be written before a flush (like changing vertex
program
while there is still fragment being rendered with old vertex program). I think
we could apply the patch you point to as temporary fix.


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