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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - r600g causes KWin crashes with kernel 3.8"
href="https://bugs.freedesktop.org/show_bug.cgi?id=61182#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - r600g causes KWin crashes with kernel 3.8"
href="https://bugs.freedesktop.org/show_bug.cgi?id=61182">bug 61182</a>
from <span class="vcard"><a class="email" href="mailto:agd5f@yahoo.com" title="Alex Deucher <agd5f@yahoo.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>I think these are actually several bugs at play here.
1. CPU only has a 256 MB window into vram. If the window is full due to
fragmentation or other mapped buffers, we fail. Does disabling hyperz help?
set env var R600_HYPERZ=0 (mesa 9.1 or older), or R600_DEBUG=nohyperz (mesa
git).
2. running out of GPU accessible memory when migrating buffers. Does setting
radeon.gartsize=1024 on the kernel command line in grub help?</pre>
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