# Ruby Extensions, Threads and stack to0 deep

**URL:** <https://www.ruby-forum.com/t/ruby-extensions-threads-and-stack-to0-deep/134253>\
**Category:** Ruby\
**Created:** [April 9, 2008, 9:51am UTC](https://www.ruby-forum.com/t/ruby-extensions-threads-and-stack-to0-deep/134253 "2008-04-09T09:51:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![barjunk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/3ec8ea/32.png) [@barjunk](https://www.ruby-forum.com/u/barjunk)\
**Post date:** [April 9, 2008, 9:51am UTC](https://www.ruby-forum.com/t/ruby-extensions-threads-and-stack-to0-deep/134253/1 "2008-04-09T09:51:24Z")

</div>

I have a library (milter) that calls back into ruby, but on a  
different thread than I called into the library on. How can I make  
this work?

Thanks.

Here is a current program run:

[http://rafb.net/p/0z8Lkh10.html](http://rafb.net/p/0z8Lkh10.html)

Mike B.