http://bugs.freedesktop.org/show_bug.cgi?id=16812





--- Comment #2 from Olivier Valentin <[EMAIL PROTECTED]>  2008-07-24 04:47:48 
PST ---
I located the failing condition in shared-core/mach64_dma.c:1652, from what I
understand, the code waits up to 1 second to acquire a free message structure
from a ring. But in my case this sometimes fails.

Then I tried to give a true value to MACH64_EXTRA_CHECKING in
shared-core/mach64_drv.h, and since then, I was unable to make it freeze again.
Which looks quite insane since this flag is intended to detect problems and
when it detects one, at least prints a message. But there is no message !
So this sounds like it fixes by "adding a delay" or by side effects !


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