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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Using SB shader optimization caused segfault in Serious Sam 3: BFE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66349#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Using SB shader optimization caused segfault in Serious Sam 3: BFE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66349">bug 66349</a>
from <span class="vcard"><a class="email" href="mailto:thomas.lindroth@gmail.com" title="Thomas Lindroth <thomas.lindroth@gmail.com>"> <span class="fn">Thomas Lindroth</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=82148" name="attach_82148" title="valgrind output">attachment 82148</a> <a href="attachment.cgi?id=82148&action=edit" title="valgrind output">[details]</a></span>
valgrind output
<a href="https://dl.dropboxusercontent.com/s/ynibt38hhdlyu1r/DungeonDefenders-x86.trace.bz2">https://dl.dropboxusercontent.com/s/ynibt38hhdlyu1r/DungeonDefenders-x86.trace.bz2</a>
Maybe you'll have better luck with this trace of dungeon defenders. I've never
gotten it to play back right. It will crash with or without sb,
LIBGL_ALWAYS_SOFTWARE and both 32 & 64-bit. The 32-bit drivers in my chroot are
git but my 64-bit drivers are stable versions meaning mesa-9.1.3,
libdrm-2.4.44, xf86-video-ati-7.1.0 and xorg-server-1.13.4. Most of the time it
will segfault in a call to glDrawRangeElements but sometimes it will spam "The
kernel rejected CS" before segfaulting.
I attached a valgrind output. Running valgrind on the 32-bit binaries was
impossible because valgrind doesn't support AVX instructions in 32-bit code so
the output is from the 64-bit version. The stuff in my 32-bit chroot was not
involved in any way so the problem is probably unrelated to that.
I use gcc-4.6.3 and compile with these flags "-O2 -march=native -pipe"</pre>
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