I'm running the Fedora Core 3 test release updated with the latest package from the Fedora Development branch. This version of Fedora contains the latest CVs version of the xorg xservers. (6.7.99.902) . I first discovered this problem when running a program I was doing some hacking on which uses openGL (x.mame.net) . Because I was working on this program I was linking it with ElectricFence (malloc debugger) to catch any bufferoverruns. Now if I leave DRI enabled and run any application with Electricfence linked in, it segfaults. Try for example: export LD_PRELOAD=libefence.so.0.0 cd Mesa-6.0.1/progs/demos/ ./tunnel I can produce a backtrace in gdb if you want. I've tried uopgrading to the latest CVS drm but that doesn't help.
I've also submitted this downstream: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=131175
this sounds like a Mesa driver issue; shifting.
I was unable to reproduce this bug on an up-to-date FC3 system with current X.org CVS and ElectricFence 2.2.2.
I no longer have the system or the card causing the problem, so I believe you, one question, did you try it both with and without "export EF_PROTECT_BELOW=1" set? I think I might have had that set, and that could make the difference. If that also works fine, then I think this is most probably fixed. Also my system was an Athlon, don't know if that makes a difference though.
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