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Re: edebug doesn't always work


From: Joe Corneli
Subject: Re: edebug doesn't always work
Date: Thu, 11 Aug 2005 17:10:05 -0500

       I know, but I'm currently pretty clueless about where the problem is
       coming from.  Currently I can only describe it as a "random failure".

   Can you make it fail over and over once it starts failing?

Typically I can't make it work again after that point at all.  At
least, not consistently.  I think it might have brought it back to
life on one or two occasions, by killing buffers and reopening the
file, or by moving the function I was hoping to debug to *scratch* and
then debugging it there.  But these techniques don't seem to work all
the time; last time, I just had to restart Emacs.

       Should I edebug `edebug-defun'?

   It seems risky to use edebug to debug itself.
   I would suggest using lower-level techniques.

If the problem starts up again and I have an image in which edebug has
failed in the manner I've described, perhaps there are investigations
I can run on that image?

I'll note that perhaps a couple of weeks ago I was getting errors
about null variables or functions (I can't remember which) that
prevented me from using edebug entirely - until I provided trivial
definitions for the items in question.  I don't remember what they
were (and I didn't make a report then, sorry!), but it has been fixed
in the version of Emacs I'm using now.  Perhaps whatever changes
introduced - or fixed - these older errors are partly responsible for
the current behavior.




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