Peter Zubaj wrote:
Hi,
First patch helped lot (but there are still lockups).
Second - no diffrence with or without.
Peter Zubaj
Nicolai Haehnle wrote:
Same here. All the lockups happen, it just takes them longer.
Boris Peterbarg
Hi everybody,
I once again tripped upon an R300 lockup (possibly the same one that
everybody's been talking about) and spent the last one and half days
chasing it down.
It turns out that writing the vertex buffer age to scratch registers
(the ones that are written back to main memory) during a 3D sequence
is a bad idea. Apparently, this confuses the memory controller so much
that some part of the engine locks up hard.
The attached patch.out-of-loop-dispatch-age fixes this, at least for me.
The attached patch.remove-userspace-pacifiers removes additional
unnecessary emission of the pacifier sequence from the userspace
driver. Userspace isn't supposed to emit this sequence anyway.
Could everybody please test whether a) the first patch really does fix
the lockups people are seeing and
b) whether combining both the first and the second patch causes any
regressions.
If everything's fine with these patches, I'm going to commit them in a
few days or so.
cu,
Nicolai
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