https://bugs.freedesktop.org/show_bug.cgi?id=32456
--- Comment #3 from Jerome Glisse glisse@freedesktop.org 2010-12-17 14:27:24 PST --- please do the following : make clean CFLAGS="-g3 -O0" ./autogen.sh --enable-debug --enable-gallium-r600 make -j3
And recapture the backtrace with this debug version. Use btfull and attach it here thanks