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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bisected ivb] Small black box corruption in firefox"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68410#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [bisected ivb] Small black box corruption in firefox"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68410">bug 68410</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>My suspicion is that this is a missing render flush, since that is all the
effect the patch should have had (use existing render operations more often).
I've just pushed a patch to expose a debug variable in src/sna/gen7_render.c,
if you can please recompile the DDX with this little change:
diff --git a/src/sna/gen7_render.c b/src/sna/gen7_render.c
index ff2ddb7..244bf17 100644
--- a/src/sna/gen7_render.c
+++ b/src/sna/gen7_render.c
@@ -45,7 +45,7 @@
#include "gen4_source.h"
#include "gen4_vertex.h"
-#define ALWAYS_FLUSH 0
+#define ALWAYS_FLUSH 1
#define NO_COMPOSITE 0
#define NO_COMPOSITE_SPANS 0
that should test the simple flushing theory. (There are more complicated
flushing theories! ;-)</pre>
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