From: "Jan Djärv" <jan.h.d@swipnet.se>
To: Christoph Ruegge <chrueg@gmail.com>
Cc: "18375@debbugs.gnu.org" <18375@debbugs.gnu.org>
Subject: bug#18375: 24.4.50; Emacs hangs X session manager logout in certain cases
Date: Wed, 3 Sep 2014 20:40:43 +0200 [thread overview]
Message-ID: <49A5C6F0-15EF-4F3E-B89D-C98311C3632D@swipnet.se> (raw)
In-Reply-To: <CAOB5ahs2w9yQuN=Gscr+06dzCpvua0UO06guREzgSV=wA_Gw0g@mail.gmail.com>
Hi.
3 sep 2014 kl. 11:53 skrev Christoph Ruegge <chrueg@gmail.com>:
> They
> also give applications the opportunity to query the user about unsaved
> changes and such things. Now Emacs does not do that, but it's fairly
> simple to do implement using `emacs-save-session-functions'.
> Additionally, the only reason for me to log out is usually to restart
> the computer, so Emacs will get killed anyway. Having the opportunity
> to query about potential data loss may be useful.
Save state is part of the session protocol. But as daemon is supposed to survive the session, there is no saving of state needed when the session dies.
> That being said, I realize that my patch is rather intrusive and that
> the more minimal solution of the daemon not using the SM at all is
> better, especially since the daemon _can_ survive losing the X
> connection (maybe in case of an X crash), which would lead to
> unexpected behaviour in the next session. So one simply has to rely on
> something like auto-save to prevent data loss.
>
> Still, there's a corner case of the same bug occuring in non-daemon
> mode, since it's technically possible to close the first terminal
> after using e.g. "emacsclient -t", though that is likely a rather rare
> situation.
The tests I done shows that the SM connection is not closed properly, ever.
So it is a bug. On the other hand, X style session management is kind of deprecated.
You can see this in Fedora 20, where the whole desktop dies when emacsclient -c starts a new frame for a daemon outside the session. I guess it looses it when a process outside the session attach to the session (or something like that).
I will fix the bug, and disable SM for daemon.
As for exposing SM to lisp, that might not be a bad idea, but it would be better to implement and expose the newer d-bus based SM than the old X based SM. The latter will probably go away within a couple of years. Gnome only has a compability layer for it on top of the d-bus SM.
Jan D.
next prev parent reply other threads:[~2014-09-03 18:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-31 11:56 bug#18375: 24.4.50; Emacs hangs X session manager logout in certain cases Christoph Ruegge
2014-09-01 11:40 ` Christoph Ruegge
2014-09-01 16:54 ` Christoph Ruegge
2014-09-02 18:25 ` Stefan Monnier
2014-09-02 20:56 ` Jan D.
2014-09-03 0:06 ` Stefan Monnier
2014-09-03 5:02 ` Jan Djärv
2014-09-03 9:53 ` Christoph Ruegge
2014-09-03 18:40 ` Jan Djärv [this message]
2014-09-03 18:51 ` Christoph Ruegge
2014-09-04 5:40 ` Jan Djärv
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49A5C6F0-15EF-4F3E-B89D-C98311C3632D@swipnet.se \
--to=jan.h.d@swipnet.se \
--cc=18375@debbugs.gnu.org \
--cc=chrueg@gmail.com \
/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 external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.