* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
@ 2019-06-10 18:31 Johan Pretorius
2019-06-13 15:59 ` Glenn Morris
0 siblings, 1 reply; 10+ messages in thread
From: Johan Pretorius @ 2019-06-10 18:31 UTC (permalink / raw)
To: 36160
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Hi there,
1. Open Emacs
2. Open some file in a buffer (C-x C-f)
3. Edit the buffer, DON'T save it to file
4. Shutdown computer (e.g. Ubuntu shutdown)
5. Start it back up again
6. Open the same file again
7. Look for the change you made... it's not there
The file is not saved during OS shutdown, nor is there any complaint
from Emacs in this situation. It is about to lose data... It should
complain!
Regards,
Johan
In GNU Emacs 25.2.1 (x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
of 2017-09-22, modified by Debian built on lgw01-amd64-050
Windowing system distributor 'The X.Org Foundation', version 11.0.12001000
System Description: Ubuntu 18.04.2 LTS
Configured using:
'configure --build x86_64-linux-gnu --prefix=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --with-pop=yes
--enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.2/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --build x86_64-linux-gnu
--prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --with-pop=yes
--enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.2/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --with-x=yes --with-x-toolkit=lucid
--with-toolkit-scroll-bars --without-gsettings 'CFLAGS=-g -O2
-fdebug-prefix-map=/build/emacs25-jYekUr/emacs25-25.2+1=.
-fstack-protector-strong
-Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro''
Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS NOTIFY ACL
LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS LUCID X11
Important settings:
value of $LANG: en_ZA.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
Major mode: Org
Minor modes in effect:
org-indent-mode: t
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
auto-fill-function: org-auto-fill-function
transient-mark-mode: t
Recent messages:
Mark set
Saving file /home/johan/.emacs...
Wrote /home/johan/.emacs
(("d" "Daily Planning Agenda + Next Actions" ((agenda "" ...) (todo
"WAITING") (todo "STARTED") (todo "TODO"))) ("h" tags "@home") ("w" tags
"@work") ("o" tags "@onlinebanking") ("e" tags "@errands"))
Press key for agenda command: [2 times]
[a-z..]:Set [SPC]:clear
TODO state changed to DONE
Note stored
Mark set
Auto-saving...done
Load-path shadows:
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Features:
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Memory information:
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^ permalink raw reply [flat|nested] 10+ messages in thread* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-10 18:31 bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS Johan Pretorius
@ 2019-06-13 15:59 ` Glenn Morris
2019-06-13 16:56 ` Lars Ingebrigtsen
0 siblings, 1 reply; 10+ messages in thread
From: Glenn Morris @ 2019-06-13 15:59 UTC (permalink / raw)
To: Johan Pretorius; +Cc: 36160
Johan Pretorius wrote:
> 3. Edit the buffer, DON'T save it to file
> 4. Shutdown computer (e.g. Ubuntu shutdown)
> 5. Start it back up again
> 6. Open the same file again
> 7. Look for the change you made... it's not there
>
> The file is not saved during OS shutdown, nor is there any complaint
> from Emacs in this situation. It is about to lose data... It should
> complain!
Does any editor complain in such a situation?
It would mean a user process could block a shutdown, which seems unlikely.
Anyway, this is the kind of thing auto-save files are for.
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-13 15:59 ` Glenn Morris
@ 2019-06-13 16:56 ` Lars Ingebrigtsen
2019-06-13 17:36 ` Glenn Morris
0 siblings, 1 reply; 10+ messages in thread
From: Lars Ingebrigtsen @ 2019-06-13 16:56 UTC (permalink / raw)
To: Glenn Morris; +Cc: 36160, Johan Pretorius
Glenn Morris <rgm@gnu.org> writes:
> Does any editor complain in such a situation?
> It would mean a user process could block a shutdown, which seems unlikely.
I've got an Apple machine at work, and when I try to reboot it, there
are frequently user processes that stop the process. It's really
annoying.
So it's available on some systems...
I don't think Emacs wants to do that, but it could, like, listen to dbus
messages about being shut down and try to autosave some buffers, for
instance... Perhaps?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-13 16:56 ` Lars Ingebrigtsen
@ 2019-06-13 17:36 ` Glenn Morris
2019-06-13 18:56 ` Glenn Morris
2019-06-13 19:24 ` Eli Zaretskii
0 siblings, 2 replies; 10+ messages in thread
From: Glenn Morris @ 2019-06-13 17:36 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: 36160, Johan Pretorius
Lars Ingebrigtsen wrote:
> but it could, like, listen to dbus messages about being shut down and
> try to autosave some buffers, for instance... Perhaps?
Shutdown sends SIGTERM, so Emacs could (auto)save on receipt of that
signal (if it doesn't already do so?).
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-13 17:36 ` Glenn Morris
@ 2019-06-13 18:56 ` Glenn Morris
2019-06-13 19:24 ` Eli Zaretskii
1 sibling, 0 replies; 10+ messages in thread
From: Glenn Morris @ 2019-06-13 18:56 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: 36160, Johan Pretorius
Glenn Morris wrote:
> Shutdown sends SIGTERM, so Emacs could (auto)save on receipt of that
> signal (if it doesn't already do so?).
And SIGTERM triggers kill-emacs, which runs kill-emacs-hook, so if you
want some (unprompted) saving, you could do it with that hook.
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-13 17:36 ` Glenn Morris
2019-06-13 18:56 ` Glenn Morris
@ 2019-06-13 19:24 ` Eli Zaretskii
2019-06-13 19:38 ` Glenn Morris
1 sibling, 1 reply; 10+ messages in thread
From: Eli Zaretskii @ 2019-06-13 19:24 UTC (permalink / raw)
To: Glenn Morris; +Cc: 36160, larsi, pretoriusjf
> From: Glenn Morris <rgm@gnu.org>
> Date: Thu, 13 Jun 2019 13:36:21 -0400
> Cc: 36160@debbugs.gnu.org, Johan Pretorius <pretoriusjf@gmail.com>
>
> Shutdown sends SIGTERM, so Emacs could (auto)save on receipt of that
> signal (if it doesn't already do so?).
AFAIU, we don't: we just call kill-emacs.
But how to distinguish SIGTERM due to system shutdown and SIGTERM when
the user triggers the signal?
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-13 19:24 ` Eli Zaretskii
@ 2019-06-13 19:38 ` Glenn Morris
2020-08-26 0:46 ` Stefan Kangas
0 siblings, 1 reply; 10+ messages in thread
From: Glenn Morris @ 2019-06-13 19:38 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 36160, larsi, pretoriusjf
Eli Zaretskii wrote:
> But how to distinguish SIGTERM due to system shutdown and SIGTERM when
> the user triggers the signal?
I don't think one can, or should.
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2019-06-13 19:38 ` Glenn Morris
@ 2020-08-26 0:46 ` Stefan Kangas
2020-08-26 6:14 ` Eli Zaretskii
0 siblings, 1 reply; 10+ messages in thread
From: Stefan Kangas @ 2020-08-26 0:46 UTC (permalink / raw)
To: Glenn Morris; +Cc: 36160, larsi, pretoriusjf
Glenn Morris <rgm@gnu.org> writes:
> Eli Zaretskii wrote:
>
>> But how to distinguish SIGTERM due to system shutdown and SIGTERM when
>> the user triggers the signal?
>
> I don't think one can, or should.
Is this therefore a wontfix? We already have auto-save files, as Glenn
pointed out.
(FWIW, It seems to me that we would need a solution for this on a
GNU/Linux level before we can do something in Emacs. And AFAIK there is
no way for a user level program to halt a system halt.)
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS
2020-08-26 0:46 ` Stefan Kangas
@ 2020-08-26 6:14 ` Eli Zaretskii
2020-08-27 6:16 ` Stefan Kangas
0 siblings, 1 reply; 10+ messages in thread
From: Eli Zaretskii @ 2020-08-26 6:14 UTC (permalink / raw)
To: Stefan Kangas; +Cc: rgm, larsi, pretoriusjf, 36160
> From: Stefan Kangas <stefan@marxist.se>
> Date: Tue, 25 Aug 2020 17:46:44 -0700
> Cc: Eli Zaretskii <eliz@gnu.org>, 36160@debbugs.gnu.org, larsi@gnus.org,
> pretoriusjf@gmail.com
>
> Glenn Morris <rgm@gnu.org> writes:
>
> > Eli Zaretskii wrote:
> >
> >> But how to distinguish SIGTERM due to system shutdown and SIGTERM when
> >> the user triggers the signal?
> >
> > I don't think one can, or should.
>
> Is this therefore a wontfix?
I guess so.
> (FWIW, It seems to me that we would need a solution for this on a
> GNU/Linux level before we can do something in Emacs. And AFAIK there is
> no way for a user level program to halt a system halt.)
I think we support the session management protocol for this, see
xsmfns.c.
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2020-08-27 6:16 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-06-10 18:31 bug#36160: 25.2; Emacs does not ask to save modified files when shutting down OS Johan Pretorius
2019-06-13 15:59 ` Glenn Morris
2019-06-13 16:56 ` Lars Ingebrigtsen
2019-06-13 17:36 ` Glenn Morris
2019-06-13 18:56 ` Glenn Morris
2019-06-13 19:24 ` Eli Zaretskii
2019-06-13 19:38 ` Glenn Morris
2020-08-26 0:46 ` Stefan Kangas
2020-08-26 6:14 ` Eli Zaretskii
2020-08-27 6:16 ` Stefan Kangas
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