http://bugs.winehq.org/show_bug.cgi?id=11188
--- Comment #119 from Andrey Turkin andrey.turkin@gmail.com 2009-01-24 13:05:33 --- I was able to reproduce this error with WC3 demo and current git, I just had to play a little to get a second level. This bug is caused by race condition, it means that it only occurs sometime in more or less random manner, when threads execute in specific order in time.