http://bugs.winehq.org/show_bug.cgi?id=31442
--- Comment #26 from voidcastr voidcastr@gmail.com 2012-10-03 03:54:14 CDT --- Actually, I don't know exactly for what I should look in the backtrace... I'm not even sure that it contains what we're looking for.
There are so many threads running, and at least one apparently blocks (like waiting forever for some lock) or crashes... but I don't know how to identify either of these scenarios due to not really being familiar with wine's detailed call structure.
All I can tell from the initial observations is that the thread in question (whichever it might be) is not likely to be trapped in some infinity loop because CPU usage basically lowers to almost 0% when the freeze occurs.
In case we are facing a (dead)lock scenario here, and not simply a crashed thread, we won't find anything in the backtrace either, will we? At least it would be quite difficult to see.