https://dl.dropboxusercontent.com/s/tv67mgkhsx3g0gk/Sam3.trace.bz2
https://dl.dropboxusercontent.com/s/1ib2y83c1sluboy/Sam3.trim.trace.bz2
Here is the trace and the trimmed version in case someone wants to figure out
what went wrong with it.

Full trace segfault at call 479626 in frame 940.

The segfaulting mesa was built as
./configure --prefix=/usr --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu
--mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share
--sysconfdir=/etc --localstatedir=/var/lib --disable-silent-rules
--disable-dependency-tracking --enable-dri --enable-glx --enable-shared-glapi
--enable-texture-float --disable-debug --enable-egl --disable-gbm
--disable-gles1 --disable-gles2 --enable-glx-tls --disable-osmesa --enable-asm
--disable-xa --disable-xorg --with-dri-drivers=
--with-gallium-drivers=,swrast,r600 PYTHON2=/usr/bin/python2.7
--with-egl-platforms=x11 --enable-gallium-egl --enable-gallium-llvm
--disable-openvg --disable-r600-llvm-compiler --disable-vdpau --disable-xvmc