http://bugs.winehq.org/show_bug.cgi?id=21424
--- Comment #11 from Austin English austinenglish@gmail.com 2010-09-21 20:46:12 CDT --- Workaround seems to be simply rm -rf $HOME and restart cygwin. For me on the second time, bash.exe still got a stackdump (well, it made a file named bash.exe.stackdump), but I can run commands and not get tons of errors.