[Bug 28712] winhttp/notification.ok: invalid read in check_notification

http://bugs.winehq.org/show_bug.cgi?id=28712

--- Comment #2 from Dan Kegel  2011-10-14 08:30:22 CDT ---
Looks like it's because the Sleep(2000) is insufficient when
running under valgrind.  
If I comment out the part before the sleep, the error goes away.
If I comment out the part after the sleep, the error goes away.
If I change it to Sleep(20000), the error goes away.

Is there a more reliable way to wait for the entry to be evicted from the
cache?

This isn't quite a valgrind-only issue; the same race condition could happen
on a system that is slow or busy for other reasons.