I was editing my indent regexes and I had an unmatched closing parentheses. When I used the reindent command, sublime segfaulted. (ubuntu 10.4)
It was the javascript regex indentation.
The regex in question was:
(?x)
^(.*/)?
\s(}|)|])(^{]{)?
(;,]?\s|.^{]|\s|\s*]);\s]*)$
Related to this, I have had trouble getting sublime to reload the regexes for me. The only way I found was to shutdown sublime, run rm */*cache and restart sublime.