From: Michael Welsh Duggan <mwd@md5i.com>
To: martin rudalics <rudalics@gmx.at>
Cc: Michael Welsh Duggan <mwd@md5i.com>,
"schwab@linux-m68k.org" <schwab@linux-m68k.org>,
"47244@debbugs.gnu.org" <47244@debbugs.gnu.org>,
Michael Welsh Duggan <mwd@cert.org>
Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs
Date: Wed, 07 Apr 2021 08:42:59 -0400 [thread overview]
Message-ID: <8735w2p8oc.fsf@md5i.com> (raw)
In-Reply-To: <233daa4b-ca64-955f-2612-49a0503b1938@gmx.at> (martin rudalics's message of "Wed, 7 Apr 2021 11:00:36 +0200")
martin rudalics <rudalics@gmx.at> writes:
>> Just a shot in the dark here. The only way I can think of this
>> occurring (Vwindow_list being too small), is that something modified
>> Vwindow_list when we don't expect it to be modified. I looked through
>> all the uses of Vwindow_list and window_list(), and they all look
>> kosher. The only modification seems to be setting Vwindow_list to nil.
>> But window_list() does call into lisp (nconc2, which calls Fnconc) when
>> constructing Vwindow_list, and it uses Vwindow_list as a temporary in
>> the process. Is it possible that during that call something happens
>> asynchronously (via gc?) that calls something that sets Vwindow_list
>> to nil again, while Vwindow_list is being constructed?
>
> Improbable but I attached some code that could detect such an
> incidence. Put a breakpoint at the
>
> Vwindow_list = window_list_2;
>
> line.
>
>> I don't think
>> so, off hand, but I'm grasping at straws.
>
> I also added a variable called `window-list-lengths' which records the
> last 20 or so last changes in the number of windows seen by window_list.
> Maybe you can detect some strange 2 ~> 6 or 6 ~> 2 change while running
> Gnus. I'm still not sure whether your daemon setup could be involved
> somehow.
I can run with this, but I am uncertain how I should be using it. What
should I be trapping on and looking at? I'm guessing the same process
as I used before, but we get another variable we can look at in the
process?
--
Michael Welsh Duggan
(md5i@md5i.com)
next prev parent reply other threads:[~2021-04-07 12:42 UTC|newest]
Thread overview: 160+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-18 15:39 bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs Michael Welsh Duggan
2021-03-18 15:42 ` Michael Welsh Duggan
2021-03-18 15:49 ` Michael Welsh Duggan
2021-03-18 16:02 ` Andreas Schwab
2021-03-18 16:02 ` Eli Zaretskii
2021-03-18 16:27 ` Michael Welsh Duggan
2021-03-18 16:45 ` Eli Zaretskii
2021-03-18 16:54 ` Michael Welsh Duggan
2021-03-18 18:41 ` Eli Zaretskii
2021-03-18 18:54 ` Michael Welsh Duggan
2021-03-18 19:16 ` Eli Zaretskii
2021-03-18 19:24 ` Michael Welsh Duggan
2021-03-18 19:51 ` Eli Zaretskii
2021-03-18 20:13 ` Andreas Schwab
2021-03-18 20:27 ` Eli Zaretskii
2021-03-19 1:50 ` Michael Welsh Duggan
2021-03-19 6:47 ` Eli Zaretskii
2021-03-19 13:37 ` Michael Welsh Duggan
2021-03-19 13:41 ` Michael Welsh Duggan
2021-03-19 13:51 ` Eli Zaretskii
2021-03-19 13:49 ` Eli Zaretskii
2021-03-19 14:18 ` Michael Welsh Duggan
2021-03-19 14:21 ` Michael Welsh Duggan
2021-03-19 15:00 ` Eli Zaretskii
2021-03-19 15:14 ` Michael Welsh Duggan
2021-03-23 14:18 ` Michael Welsh Duggan
2021-03-23 15:02 ` Eli Zaretskii
2021-03-23 15:08 ` Michael Welsh Duggan
2021-03-23 16:42 ` Eli Zaretskii
2021-03-23 15:23 ` martin rudalics
2021-03-23 15:53 ` Michael Welsh Duggan
2021-03-23 16:45 ` Eli Zaretskii
2021-03-24 6:53 ` martin rudalics
2021-03-24 14:14 ` Michael Welsh Duggan
2021-03-24 16:09 ` martin rudalics
2021-03-25 2:19 ` Michael Welsh Duggan
2021-03-25 6:25 ` Eli Zaretskii
2021-03-29 14:06 ` Michael Welsh Duggan
2021-03-29 14:28 ` Eli Zaretskii
2021-03-29 14:39 ` Michael Welsh Duggan
2021-03-29 15:02 ` Eli Zaretskii
2021-03-29 15:07 ` Eli Zaretskii
2021-03-29 15:21 ` Michael Welsh Duggan
2021-03-29 15:26 ` Michael Welsh Duggan
2021-03-29 15:27 ` Eli Zaretskii
2021-03-29 15:33 ` Michael Welsh Duggan
2021-03-29 15:34 ` Michael Welsh Duggan
2021-03-29 15:41 ` Eli Zaretskii
2021-03-29 16:23 ` Michael Welsh Duggan
2021-03-29 15:21 ` Eli Zaretskii
2021-03-29 16:05 ` martin rudalics
2021-03-29 16:26 ` Michael Welsh Duggan
2021-03-29 17:33 ` martin rudalics
2021-03-29 19:12 ` Michael Welsh Duggan
2021-03-30 7:30 ` martin rudalics
2021-03-30 13:39 ` Michael Welsh Duggan
2021-03-30 14:36 ` martin rudalics
2021-03-30 14:51 ` Michael Welsh Duggan
2021-03-30 15:05 ` martin rudalics
2021-03-30 14:13 ` Michael Welsh Duggan
2021-03-30 14:36 ` martin rudalics
2021-03-30 14:48 ` Eli Zaretskii
2021-03-30 15:05 ` martin rudalics
2021-03-30 15:13 ` Eli Zaretskii
2021-03-30 16:52 ` martin rudalics
2021-03-30 17:05 ` Eli Zaretskii
2021-03-31 6:41 ` martin rudalics
2021-03-31 7:09 ` Eli Zaretskii
2021-03-30 15:03 ` Michael Welsh Duggan
2021-03-30 16:52 ` martin rudalics
2021-03-31 13:23 ` Michael Welsh Duggan
2021-03-31 13:53 ` Michael Welsh Duggan
2021-03-31 14:01 ` Eli Zaretskii
2021-03-31 14:32 ` martin rudalics
2021-03-31 14:48 ` Michael Welsh Duggan
2021-03-31 15:49 ` martin rudalics
2021-03-31 17:01 ` Michael Welsh Duggan
2021-03-31 18:41 ` martin rudalics
2021-03-31 19:14 ` Michael Welsh Duggan
2021-03-31 19:18 ` Michael Welsh Duggan
2021-04-01 7:14 ` martin rudalics
2021-04-01 7:45 ` Eli Zaretskii
2021-04-01 13:20 ` Michael Welsh Duggan
2021-04-01 13:22 ` Eli Zaretskii
2021-04-01 13:54 ` Michael Welsh Duggan
2021-04-01 14:56 ` martin rudalics
2021-04-01 18:30 ` Michael Welsh Duggan
2021-04-01 19:31 ` Michael Welsh Duggan
2021-04-02 6:48 ` martin rudalics
2021-04-05 18:15 ` Michael Welsh Duggan
2021-04-05 18:45 ` martin rudalics
2021-04-05 19:57 ` Michael Welsh Duggan
2021-04-05 20:39 ` martin rudalics
2021-04-05 20:56 ` Michael Welsh Duggan
2021-04-06 8:10 ` martin rudalics
2021-04-06 14:40 ` Michael Welsh Duggan
2021-04-06 16:12 ` martin rudalics
2021-04-06 16:48 ` Michael Welsh Duggan
2021-04-06 17:00 ` martin rudalics
2021-04-06 17:24 ` Michael Welsh Duggan
2021-04-07 2:22 ` Michael Welsh Duggan
2021-04-07 7:52 ` Andreas Schwab
2021-04-07 9:00 ` martin rudalics
2021-04-07 12:42 ` Michael Welsh Duggan [this message]
2021-04-07 13:35 ` martin rudalics
2021-04-07 15:29 ` Michael Welsh Duggan
2021-04-07 16:16 ` martin rudalics
2021-04-07 17:37 ` Michael Welsh Duggan
2021-04-07 17:55 ` Michael Welsh Duggan
2021-04-07 18:31 ` Michael Welsh Duggan
2021-04-07 19:25 ` Michael Welsh Duggan
2021-04-07 20:25 ` martin rudalics
2021-04-07 20:32 ` Michael Welsh Duggan
2021-04-08 6:59 ` martin rudalics
2021-04-08 10:47 ` Gregory Heytings
2021-04-08 11:39 ` Eli Zaretskii
2021-04-08 12:06 ` Andreas Schwab
2021-04-08 12:29 ` Eli Zaretskii
2021-04-08 12:43 ` Gregory Heytings
2021-04-08 12:59 ` Eli Zaretskii
2021-04-08 16:20 ` Gregory Heytings
2021-04-08 12:03 ` martin rudalics
2021-04-08 12:24 ` Gregory Heytings
2021-04-08 13:39 ` Michael Welsh Duggan
2021-04-08 14:35 ` Michael Welsh Duggan
2021-04-08 15:08 ` Eli Zaretskii
2021-04-08 15:24 ` Andreas Schwab
2021-04-08 15:21 ` Michael Welsh Duggan
2021-04-08 15:33 ` Michael Welsh Duggan
2021-04-08 15:48 ` martin rudalics
2021-04-08 16:01 ` Michael Welsh Duggan
2021-04-08 16:14 ` martin rudalics
2021-04-08 16:35 ` Eli Zaretskii
2021-04-08 16:42 ` Michael Welsh Duggan
2021-04-08 15:58 ` Eli Zaretskii
2021-04-08 16:05 ` Michael Welsh Duggan
2021-04-08 16:28 ` Eli Zaretskii
2021-04-08 16:37 ` Michael Welsh Duggan
2021-04-08 16:49 ` Eli Zaretskii
2021-04-08 17:15 ` Michael Welsh Duggan
2021-04-08 17:11 ` Michael Welsh Duggan
2021-04-08 17:46 ` Eli Zaretskii
2021-04-08 17:51 ` Michael Welsh Duggan
2021-04-08 18:52 ` martin rudalics
2021-04-09 20:59 ` Michael Welsh Duggan
2021-04-10 7:15 ` martin rudalics
2021-04-10 14:53 ` Michael Welsh Duggan
2021-04-10 18:57 ` martin rudalics
2021-04-17 8:01 ` martin rudalics
2021-04-20 14:03 ` Michael Welsh Duggan
2021-04-07 19:40 ` Eli Zaretskii
2021-04-07 18:48 ` martin rudalics
2021-04-07 18:53 ` Michael Welsh Duggan
2021-04-07 20:25 ` martin rudalics
2021-04-07 9:00 ` martin rudalics
2021-03-19 8:15 ` martin rudalics
2021-03-19 8:19 ` Eli Zaretskii
2021-03-19 9:18 ` martin rudalics
2021-03-19 9:37 ` martin rudalics
2021-03-19 11:55 ` Eli Zaretskii
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=8735w2p8oc.fsf@md5i.com \
--to=mwd@md5i.com \
--cc=47244@debbugs.gnu.org \
--cc=mwd@cert.org \
--cc=rudalics@gmx.at \
--cc=schwab@linux-m68k.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).