From: Robert Klemme <bob.news@...>
Date: 2005-01-01T20:26:41+09:00
Subject: Re: Getting a thread-dump


"Matt Mower" <matt.mower@gmail.com> schrieb im Newsbeitrag 
news:d56373190501010242a927b6b@mail.gmail.com...
> Hi folks,
>
> Is there a way I can get the Ruby interpreter to dump a stack trace
> for all running threads?  I have some code hang during I/O and I want
> to see the callstack when it does.
>
> On Windows the Java interpreter will do something like this when you
> hit ctrl+break.  I'm using the 1.8.2-final one-click installer on
> Windows XP.

I don't know such a thing (you're probably thinking of JVM's Ctrl-C). 
However, there are some options: One thing you could do is set 
Thread.abort_on_exception = true - maybe your thread dies silently from an 
uncaught exception.  Or you wrap all threads in "begin ... rescue Exception 
=> e; puts e.backtrace end" if you have access to the code.

Third option would be to trace execution via set_trace_func and record calls 
and returns in a file (or to console if that doesn't clutter too much).  But 
this is likely to be slow unless you can narrow it down to a certain class 
or instance.

Kind regards

    robert