exa_965_state used when in XAA mode

[Wang Zhenyu]

On 2007.04.27 09:30:33 +0000, Keith Packard wrote:
> On Fri, 2007-04-27 at 12:34 +0100, Barry Scott wrote:
> > Hi,
> > I'm still working on rotate and get this crash from the attached x.conf 
> > after starting
> > up Xorg and then starting an xterm.
> > 
> > pI830->exa_965_state is 0 as useEXA is FALSE.
> > Why does the i830_xaa_composite call i965_prepare_composite that only 
> > works for EXA?
> 
> The rotation code is supposed to be able to use the exa composite
> handler in these special cases; looks like that's not quite working on
> 965 though.

We can fix the G965 render state mem allocation, but I saw the same crash
as in exa accel case when rotation, current workaround is to disable DRI.
I'm still debugging on this, it looks like DRI smashing the ring buffer somehow.
And on 915 if I drag the glxgears window, it will also crash server...