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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Rendering sometimes halts in waiting for back buffers with dri3 & xwayland"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81139#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Rendering sometimes halts in waiting for back buffers with dri3 & xwayland"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81139">bug 81139</a>
from <span class="vcard"><a class="email" href="mailto:stu_dby@126.com" title="Boyan Ding <stu_dby@126.com>"> <span class="fn">Boyan Ding</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=81139#c9">comment #9</a>)
<span class="quote">> If never present_fake_queue_vblank is called with a msc too low (already
> passed), then perhaps it's going to wait forever. My guess is that for an
> unknown reason, this function is called with a past msc.</span >
I can observe the target_msc changes drastically when running glxgears, when
traced at present_pixmap. In the apps that works okay, target_msc only
increases by one.</pre>
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