From: ruby-lang@...
Date: 2005-10-07T04:56:07+09:00
Subject: Q: How to get backtrace of another thread?

How do I get a backtrace of another (possibly running) Thread?

I want to get an idea of what is blocking in other threads, and
therefore want to periodically dump a list of threads with their
backtraces to get a feeling what they're up to.

Ideas which did not work:

- begin
    otherThread.raise("Gotcha!")
  rescue RuntimeError
    <do an eval in the otherThread (but how?)>
    otherThread.resume
  end
  ...raises the exception in otherThread, not the calling thread.

- Kernel.set_trace_func() .
  ...doesn't seem to keep track of Threads(?).
  ...doesn't say on which function it is blocking.

Regards,
Rutger.

-- 
Rutger Nijlunsing ----------------------------------------------------
never attribute to a conspiracy which can be explained by incompetence
----------------------------------------------------------------------