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Re: Feature request: debug-quit

From: Dave Abrahams
Subject: Re: Feature request: debug-quit
Date: Mon, 12 Nov 2012 13:05:38 -0500
User-agent: Gnus/5.130006 (Ma Gnus v0.6) Emacs/24.2 (darwin)

on Sun Nov 04 2012, Bastien <bzg-AT-gnu.org> wrote:

> Hi Dave,
> Dave Abrahams <address@hidden> writes:
>> on Sun Nov 04 2012, Stefan Monnier <monnier-AT-IRO.UMontreal.CA> wrote:
>>>> When Emacs gets hung, and I didn't know it was going to hang, so I
>>>> didn't turn on debug-on-quit, it would be great to have a keystroke that
>>>> would drop me straight into the debugger.  As it is, these things can be
>>>> almost impossible to diagnose.
>>> One possibility is to use `debug-on-event'.
>>> It's not a keystroke, tho.
>> M-x apropos doesn't know what `debug-on-event' is, and neither do I
> This is what I have:
> ,----[ C-h v debug-on-event RET ]
> | Enter debugger on this event.  When Emacs
> | receives the special event specified by this variable, it will try to
> | break into the debugger as soon as possible instead of processing the
> | event normally through `special-event-map'.
> | 
> | Currently, the only supported values for this
> | variable are `sigusr1' and `sigusr2'.
> `----
> What version of Emacs are you using?

24.2.2, and that variable is now known to my Emacs, thanks.

Dave Abrahams
BoostPro Computing                  Software Development        Training
http://www.boostpro.com             Clang/LLVM/EDG Compilers  C++  Boost

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