From: Richard Stallman <rms@gnu.org>
To: monnier@IRO.UMontreal.CA
Cc: 15688@debbugs.gnu.org
Subject: bug#15688: 24.3.50; clear-temporary-overlay-map
Date: Tue, 04 Mar 2014 16:55:18 -0500 [thread overview]
Message-ID: <E1WKxJ0-0000rZ-BL@fencepost.gnu.org> (raw)
In-Reply-To: <83a9ejbdpt.fsf@gnu.org> (message from Eli Zaretskii on Sun, 26 Jan 2014 05:53:50 +0200)
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I got more information about this bug. The crash occurs when
mark_stack calls mark_memory. pp is pointing at a stack slot
in Fgarbage_collect. As far as I can tell by looking at the code
of Fgarbage_collect with x/i, that slot is never actually used -- it
contains junk left over from previous function calls.
I am surprised this unoptimized compilation makes a stack slot that is
not actually used. Maybe it is used in some unobvious way. It is
16(sp).
This suggests that the problem cannot be fixed by trying to prevent a
pointer to clear-temporary-map from being found and marked.
I wrote a change in the Lisp code to fix this problem,
then ran without it to get more info about the problem.
I think I should install that fix soon, but I can hold
off longer if you want. Please respond.
--
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
Use Ekiga or an ordinary phone call.
next prev parent reply other threads:[~2014-03-04 21:55 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-23 0:09 bug#15688: 24.3.50; clear-temporary-overlay-map Richard Stallman
2013-10-23 12:40 ` Stefan Monnier
2013-10-24 1:47 ` Richard Stallman
2013-10-24 3:45 ` Stefan Monnier
2013-10-24 17:17 ` Richard Stallman
2013-11-28 4:40 ` Stefan Monnier
2013-11-28 19:05 ` Richard Stallman
2013-11-28 20:17 ` Eli Zaretskii
2014-01-23 17:42 ` Stefan Monnier
2014-01-23 23:09 ` Richard Stallman
2014-01-24 3:23 ` Dmitry Antipov
2014-01-24 14:55 ` Richard Stallman
2014-01-24 15:20 ` Eli Zaretskii
2014-01-25 13:26 ` Richard Stallman
2014-01-25 14:23 ` Eli Zaretskii
2014-01-24 14:55 ` Richard Stallman
2014-01-24 15:24 ` Eli Zaretskii
2014-01-24 16:10 ` Andreas Schwab
2014-01-24 18:22 ` Eli Zaretskii
2014-01-25 13:26 ` Richard Stallman
2014-01-25 14:25 ` Eli Zaretskii
2014-01-25 23:01 ` Richard Stallman
2014-01-26 3:53 ` Eli Zaretskii
2014-01-26 9:11 ` Andreas Schwab
2014-01-26 16:24 ` Eli Zaretskii
2014-01-26 20:05 ` Richard Stallman
2014-01-26 20:18 ` Eli Zaretskii
2014-03-04 21:55 ` Richard Stallman [this message]
2014-03-07 18:39 ` Richard Stallman
2014-03-07 22:34 ` Stefan Monnier
2014-03-08 7:37 ` Richard Stallman
2014-01-24 3:28 ` Stefan Monnier
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