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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb] TearFree now triggers stuck semaphores (due to Eliminate the synchronous wait from inside TearFree)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70764#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb] TearFree now triggers stuck semaphores (due to Eliminate the synchronous wait from inside TearFree)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70764">bug 70764</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>Ok, try this simpler one instead:
diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index 7fcade6..5c04d78 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -4299,7 +4299,7 @@ static bool wait_for_shadow(struct sna *sna, struct
sna_pixmap *priv, unsigned f
damage = sna->mode.shadow_damage;
sna->mode.shadow_damage = NULL;
- while (sna->mode.shadow_flip && sna_mode_has_pending_events(sna))
+ while (sna->mode.shadow_flip && sna_mode_wait_for_event(sna))
sna_mode_wakeup(sna);
if (sna->mode.shadow_flip) {</pre>
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