http://bugs.winehq.org/show_bug.cgi?id=15963
--- Comment #6 from NVS notveryserious@gmail.com 2009-05-19 17:49:21 --- ==> Original bug report has a poor summary/title.
It is too vague. It encourages people who are not familiar with their issue or do not spend the needed time researching to simply jump on board with an unrelated topic that may be better served elsewhere. There is also a lack of information by the original bug poster. When did he crash: while playing the map or while in the game lobby?
==> The ORIGINAL (http://bugs.winehq.org/show_bug.cgi?id=15963#c0) bug report is related to fatal errors WHILE playing a custom map (DotA).
There are many things that can seem to cause fatal errors in Warcraft III (ATI cards, the addition of Warden, etc.). A number of things could cause the ORIGINAL particular bug report: however, there is a lack of information.
Most likely it happened while playing the map and is related to the execution of poor JASS code inside custom maps. This is known to be a cause for fatal errors on ALL operating systems (look at http://www.wc3c.net/showthread.php?t=80693 for known bugs in JASS). Also, it is possible it could be specific to just running via Wine; some fatal errors exist for Mac, but not Windows, for example.
==> In regards to the original bug report...
There was a bug in DotA regarding abilities/items that caused fatal errors (see changelog for DotA v6.59: http://www.getdota.com/changelogs/index/33). Once that was fixed my RARE fatal errors (when not using -ah) disappeared almost entirely. I still have what seems like a 50/50 chance (or more) to get a fatal error when -ah mode is enabled. But like I said, probably poor JASS coding.
Could my hunch be wrong in regards to the ORIGINAL bug report? Possibly.