Bug#366830: libgl1-mesa-dri: segfault in r300_dri in _tnl_RenderClippedLine

[Michel Dänzer]

On Thu, 2007-03-01 at 22:45 +0100, Jan Hudec wrote:
> On Wed, Feb 28, 2007 at 19:59:32 +0100, Brice Goglin wrote:
> > Can you reproduce this segfault with current Xorg/Etch? If so, could you
> > try libgl1-mesa-dri 6.5.2-3 (currently in experimental)?
> 
> Hm, switching from fglrx back to radeon proved quite hard (requires
> unisntalling fglrx-driver, which is not all that obvious).
> 
> Anyway, it does not crash now, but it does not work either. I get around
> 1/12th frame per second (yes, that's right -- one frame every 12 seconds or
> so).
> 
> The glxinfo says I do have direct rendering, glxgears make over 2700 fps and
> crack-attack also seems to run fine, so I'd assume the culprit is some
> feature used by fgfs particularly. Fgfs gave following warnings on console:
> 
> *********************************WARN_ONCE*********************************
> File r300_render.c function r300Fallback line 428
> Software fallback:ctx->Line.SmoothFlag
> ***************************************************************************
> Try R300_SPAN_DISABLE_LOCKING env var if this hangs.
> *********************************WARN_ONCE*********************************
> File r300_render.c function r300Fallback line 426
> Software fallback:ctx->Line.StippleFlag
> ***************************************************************************
> 
> Running with R300_SPAN_DISABLE_LOCKING=1 didn't help.

Yeah, it didn't quite hang. :)

Try enabling the disable_lowimpact_fallback option in driconf
(~/.drirc).


-- 
Earthling Michel Dänzer           |          http://tungstengraphics.com
Libre software enthusiast         |          Debian, X and DRI developer