GNU bug report logs - #8789
23.3; debug backtrace buffer changes window on step-through

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From: martin rudalics <rudalics <at> gmx.at>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 'Michael Heerdegen' <michael_heerdegen <at> web.de>, 8789 <at> debbugs.gnu.org
Subject: bug#8789: 23.3; debug backtrace buffer changes window on step-through
Date: Tue, 18 Sep 2012 09:10:55 +0200

> 1. OK, I was not aware of that option; thanks.  Please document it.  (I do not
> see it in either the Emacs manual or the Elisp manual.)

It's not yet documented.

> 2. I tried each of the values listed in the doc string.  None of them had any
> effect at all.  Same broken behavior, always: the frame is deleted, then
> re-created with the default size and position (i.e., ignoring its previous size
> and position).  That re-creation takes perhaps 0.5 sec or 1 sec, which means
> that it is visually quite distracting, besides the fact that the size and
> position prevent using the debugger efffectively (really, prevent using it at
> all).
>
> I am using the regular Emacs debugger, not `edebug'.  E.g., I am using
> `debug-on-entry' etc.  Dunno whether that is pertinent.  The doc says nothing
> about `edebug', in any case.

I checked in a fix for this in revision 110085.  Please try it.

> 3. Wrt the new option's defcustom: If the documented four possible values are
> the only possible values, then the defcustom should be rewritten so that the
> user can choose (and can only choose) by using the Value Menu.  S?he should not
> have to or be allowed to enter a quoted symbol name in a text edit field.
>
> If the documented possible values are not the only possible values, then the doc
> string should be updated to mention what other possible values there are and
> what they do.
>
> This (#3) is a bug.  Do you want me to file a separate bug report for it?

I checked in a fix for this in the same revision.

Thanks, martin

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