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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [gm45 regression] [drm:init_ring_common]: *ERROR* render ring initialization failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76554#c87">Comment # 87</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [gm45 regression] [drm:init_ring_common]: *ERROR* render ring initialization failed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76554">bug 76554</a>
from <span class="vcard"><a class="email" href="mailto:jikos@jikos.cz" title="Jiri Kosina <jikos@jikos.cz>"> <span class="fn">Jiri Kosina</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=76554#c85">comment #85</a>)
<span class="quote">> The intel_ring_setup_status_page() does a posting read anyway, so it is not
> an ordering issue. So this is back in the magic read territory, can you try
> with a msleep(10) instead of the read just to confirm that it is the read
> doing the trick and not an extra delay?</span >
With msleep() used instead of the register read, the problem triggers fully
reliably again; i.e. the "magic read" really does some trick, although it's not
a complete cure.</pre>
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