http://bugs.winehq.org/show_bug.cgi?id=26031
--- Comment #10 from Artem S. Tashkinov t.artem@mailcity.com 2011-10-03 05:58:45 CDT --- (In reply to comment #9)
You can reproduce this bug in an instant - try changing download speed limit while downloading/seeding any torrent - the issue will surface immediately.
And yes, I can reproduce this bug using the latest Wine snapshot.