Emacs crashes on Mac OS X with "Dispatch Thread Hard Limit Reached"
I posted this to another question you asked because it is indeed caused by Emacs 24.3 and related to distnoted acting up. As a solution you can either use a nightly from http://emacsformacosx.com/ or use the patch below to build 24.3 without leaks.

https://gist.github.com/anonymous/8553178