GNU bug report logs - #9462
24.0.50; Initial point in debugger

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Glenn Morris <rgm <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#9462: closed (24.0.50; Initial point in debugger)
Date: Tue, 13 Sep 2011 21:09:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Tue, 13 Sep 2011 17:04:22 -0400
with message-id <l5zki8m9wp.fsf <at> fencepost.gnu.org>
and subject line Re: bug#9462: 24.0.50; Initial point in debugger
has caused the debbugs.gnu.org bug report #9462,
regarding 24.0.50; Initial point in debugger
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
9462: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9462
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Helmut Eller <eller.helmut <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50; Initial point in debugger
Date: Thu, 08 Sep 2011 11:03:33 +0200

When entering the debugger, point is placed at seemingly random
positions.  E.g. executing this file

(progn
  (defun foo (n)
    (cond ((zerop n) (debug))
	  (t (foo (1- n)))))
  (foo 100))

with emacs -Q -l foo.el opens a *Backtrace* buffer but the cursor is
somewhere near the end of the buffer.  When debugging other code, it's
often somewhere in the middle sometimes at the beginning.

In the old days, point was consistently placed at the first line of the
backtrace (top-of-stack).  That was more useful: it was easier to see
the error message; using d was more convenient as the first line is
almost always the most interesting one.




In GNU Emacs 24.0.50.4 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2011-09-05 on ix
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  '--enable-asserts' '--enable-checking' '--with-gif=no' '--with-gnutls=no' 'CFLAGS=-g3 -O0''

[Message part 3 (message/rfc822, inline)]

From: Glenn Morris <rgm <at> gnu.org>
To: 9462-done <at> debbugs.gnu.org
Subject: Re: bug#9462: 24.0.50; Initial point in debugger
Date: Tue, 13 Sep 2011 17:04:22 -0400

Version: 24.1

Helmut Eller wrote:

> -  (debugger-make-xrefs))
> +  (save-excursion
> +    (debugger-make-xrefs)))

Thanks for the diagnosis, I installed a similar fix.

This looks like more fallout from "save-excursion + set-buffer ->
with-current-buffer".

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.