Re: diagnosing emacs hangs

[Uday S Reddy]

Emacs "hangs" means that, when you type C-g and it doesn't respond.  Is that 
what you mean?  That kind of thing almost never happens in my experience.  You 
will need to investigate the circumstances that cause the hanging and file a 
detailed bug report.

If it does respond to C-g, then you are in luck.  Set the variable 
debug-on-quit to t ahead of time.  When type C-g, it produces a backtrace of 
all the functions it was trying to run when it went into a hang.  You should 
investigate it or post the backtrace here if you need further help.

Cheers,
Uday



On 6/22/2010 2:18 AM, Matt Price wrote:
> Hi all,
>
> I'm now using emacs for almost everything and of course that's great,
> except that it is essentially a single-threaded OS that currently
> HANGS with some frequency (100% CPU usgte that will continue for hours
> if you let it go.  I think this probably has something to do with
> wanderlust or possibly org-mode (and/or misconfigurations i've made to
> both of these); but at present i cna't be sure since i have no idea
> how to diagnose these hangs.  Can someone give me some general
> directions on how to proceed with the diagnosis, and if you have them,
> some pointers on how you fixed a similar problem that you used to
> have?  Right now it's very frustrating -- I find myself losing
> substantial amounts of work when I kill emacs&  maybe more
> importantly, i'm constantly losing my train of thought.
>
> This is all under Ubuntu Lucid with emacs-snapshot 20090909,
> wanderlust=wl-beta 2.15.9+0.20100303, org-mode 6.34c (some of htese
> are debian sid packages).
>
> Thanks much in advance,
>
> matt