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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - swrast/radeonsi: Supertuxkart 0.8.1 (32bit) xserver segfault"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78604#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - swrast/radeonsi: Supertuxkart 0.8.1 (32bit) xserver segfault"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78604">bug 78604</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=78604#c13">comment #13</a>)
<span class="quote">> I tried to exclude some cases and this clearly happens only when micro_imsb
> case is there :). So i guess this math logic util_last_bit_signed is wrong
> and causes it:
>
> <a href="http://cgit.freedesktop.org/mesa/mesa/commit/">http://cgit.freedesktop.org/mesa/mesa/commit/</a>
> ?id=ab4927f3e04918fd8a53c2d91be4dfc65fe9782d</span >
Put a print in that code. It should never get called. Nothing can even generate
the MSB tgsi opcode without forcing ARB_gpu_shader5 to be enabled. If it's
getting called, that means that there is memory corruption going on.
In case it's not clear, my commit is not at fault. It just moves some code
around and makes the memory corruption that's going on due to mismatched
libgcc's go from unnoticed to noticed.</pre>
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