From: Eli Zaretskii <eliz@gnu.org>
To: Alan Mackenzie <acm@muc.de>
Cc: dancol@dancol.org, emacs-devel@gnu.org
Subject: Re: Help please! To track down GC trying to free an already freed object.
Date: Wed, 03 Apr 2019 13:12:12 +0300 [thread overview]
Message-ID: <83ftqze6tf.fsf@gnu.org> (raw)
In-Reply-To: <20190403100113.GA11372@ACM> (message from Alan Mackenzie on Wed, 3 Apr 2019 10:01:13 +0000)
> Date: Wed, 3 Apr 2019 10:01:13 +0000
> Cc: dancol@dancol.org, emacs-devel@gnu.org
> From: Alan Mackenzie <acm@muc.de>
>
> The problem I think I'm up against is that the symbol-with-pos object is
> not being marked at a particular garbage_collect_1, and thus gets freed
> prematurely.
>
> I intend to get the hex values of the Lisp_Objects which constitute the
> list in which the symbol-with-pos is embedded and search for these in
> last_marked. Putting a conditional breakpoint on Fcons slows down Emacs
> somewhat. ;-)
GDB has memory-search commands, see the node "Searching Memory" in the
GDB manual. Maybe this can help.
next prev parent reply other threads:[~2019-04-03 10:12 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-02 11:25 Help please! To track down GC trying to free an already freed object Alan Mackenzie
2019-04-02 15:04 ` Eli Zaretskii
2019-04-02 20:42 ` Alan Mackenzie
2019-04-03 4:43 ` Eli Zaretskii
2019-04-04 18:57 ` Alan Mackenzie
2019-04-02 19:09 ` Daniel Colascione
2019-04-02 19:21 ` Eli Zaretskii
2019-04-02 20:46 ` Alan Mackenzie
2019-04-02 21:03 ` Daniel Colascione
2019-04-03 4:39 ` Eli Zaretskii
2019-04-03 10:01 ` Alan Mackenzie
2019-04-03 10:12 ` Eli Zaretskii [this message]
2019-04-03 15:23 ` Paul Eggert
2019-04-02 20:24 ` Alan Mackenzie
2019-04-02 20:33 ` Daniel Colascione
2019-04-02 21:00 ` Alan Mackenzie
2019-04-05 4:49 ` Alex
2019-04-05 8:26 ` Alan Mackenzie
2019-04-05 17:05 ` Comparing symbol-with-position using eq (was: Help please! To track down GC trying to free an already freed object.) Alex
2019-04-05 18:21 ` Comparing symbol-with-position using eq Alan Mackenzie
2019-04-05 20:18 ` Daniel Colascione
2019-04-05 21:54 ` Alan Mackenzie
2019-04-05 22:50 ` Paul Eggert
2019-04-06 12:23 ` Clément Pit-Claudel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=83ftqze6tf.fsf@gnu.org \
--to=eliz@gnu.org \
--cc=acm@muc.de \
--cc=dancol@dancol.org \
--cc=emacs-devel@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).