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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT][GDG] igt@gem_mmap_gtt@basic-small-bo-tiledx - fail - Failed assertion: memcmp(ptr , tiled_pattern, PAGE_SIZE) == 0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102575#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT][GDG] igt@gem_mmap_gtt@basic-small-bo-tiledx - fail - Failed assertion: memcmp(ptr , tiled_pattern, PAGE_SIZE) == 0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102575">bug 102575</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>That basically depends on whether the failure pattern is universal (any gtt
write/read) like on gdg or specific to this test. At the present time, it is
quite clear that we have a number of errata with gdg's CPU that we are not
taking into account (that being adding noclflush fixed quite a few issues by
itself is telling). I don't think it is very likely that gm45 with a Core2 is
going to be exactly the same issues as a Pentium4.</pre>
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