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From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Bjoern Bidar <bjorn.bidar@thaodan.de>
Cc: 56967@debbugs.gnu.org
Subject: bug#56967: 29.0.50; Frequent crashes under Wayland
Date: Mon, 08 Aug 2022 10:40:30 +0800	[thread overview]
Message-ID: <875yj3sbj5.fsf@yahoo.com> (raw)
In-Reply-To: <20004002.VVDfsmh7uS@odin> (Bjoern Bidar's message of "Sun, 07 Aug 2022 17:51:25 +0300")

Bjoern Bidar <bjorn.bidar@thaodan.de> writes:

> I did I had my hole session running, nothing else had that issue.
> I kept the GTK-Demo running nothing happened it ran just fine.

Thanks.

> After a few hours Emacs exited with the same behaviour as explained in the 
> bug.

Do you see the same if you run Emacs as something other a daemon?

> I on the #gtk channel on what do and I got from ebassi that it is ok to just 
> call _exit.
> He says it might be the client behaving wrong:
> <ebassi> Thaodan: It could happen because the client made an invalid request—
> Wayland mandates that the display server closes the connection in that case

We don't make raw Wayland requests anywhere, so it must be a bug in GTK.

> <ebassi> And if you lose the socket then you'
> <ebassi> you'll have to find the new one and reconnect
> <ebassi> Thaodan: Only emacs does that
> <ebassi> Pretty much literally
> <Thaodan> "that"?
> <ebassi> "app may run longer or before the compositor starts"
> <ebassi> Because emacs is really a 1980s teletype app
> <Thaodan> What does that change? calling _exit is not a solution.
> <Thaodan> Lets assume the fault for this happening is emacs, what could cause 
> this?

Outdated information.  The PGTK port of Emacs doesn't do anything close
to that, because GTK doesn't let us.

> <ebassi> Calling exit is perfectly acceptable: the display connection is 
> severed, and that can happen for multiple reasons, including the display 
> server going away
> <ebassi> There's no "the display server is still running, but it closed the 
> socket" mechanism for the toolkit to use

So why not use exit, which lets the atexit handlers run?

> <ebassi> The socket got closed
> <ebassi> The toolkit terminates
> <ebassi> Thaodan: It could happen because the client made an invalid request—
> Wayland mandates that the display server closes the connection in that case
> <ebassi> Or the display server decided to kill the client because it was 
> unresponsive
> <Thaodan> Why should the toolkit/lib call exit isn't there any better 
> mechanism to doing such a thing in glib or gtk for that matter? 
> <Thaodan> It would be better to not need any hacks to prevent gtk from killing 
> apps.
> <ebassi> Thaodan: There is no such mechanism
> <Thaodan> ebassi: OK so what's the idea behind using _exit as a mechanism, 
> doesn't that break any other app that has state so safe too? like for example 
> an office application that wants to safe it's data before going down.
> <ebassi> I already told you
> <ebassi> If the display connection is closed by the server, then there's no 
> safe way to store the data

Store the data that is in Emacs core??  How did these people learn to
write software?





  parent reply	other threads:[~2022-08-08  2:40 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-04  7:36 bug#56967: 29.0.50; Frequent crashes under Wayland Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-04  8:01 ` Eli Zaretskii
     [not found]   ` <3230275.qDoO4GC8Cx@odin>
2022-08-04  8:21     ` Eli Zaretskii
2022-08-04 11:49       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  0:18         ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  0:50           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  6:25             ` Eli Zaretskii
2022-08-05  6:28               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  6:43                 ` Eli Zaretskii
2022-08-05  6:53                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  7:46                     ` Eli Zaretskii
2022-08-05  8:26                       ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  8:38                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  6:56                 ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  6:59                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05 11:40               ` Gregory Heytings
2022-08-05 11:50                 ` Eli Zaretskii
     [not found]             ` <2972937.jrzt3BHeHG@odin>
2022-08-05  6:29               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-07 14:51                 ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-07 15:07                   ` Eli Zaretskii
2022-08-07 15:14                     ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-07 15:44                       ` Eli Zaretskii
2022-08-08  2:42                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-08  2:40                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2022-08-08  6:07                     ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-08  8:56                     ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-08 10:10                       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-13 12:10                       ` Björn Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-13 12:10                       ` Björn Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-13 13:11                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-13 17:06                           ` Björn Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  6:31             ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
     [not found]             ` <2189728.upBv5HjrgE@odin>
2022-08-05  6:31               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
     [not found]             ` <1917872.q2Y8mqo1ke@odin>
2022-08-05  6:35               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  6:55                 ` Bjoern Bidar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-05  7:01                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-11-17 16:02 ` Gavin Massingham
     [not found] <CAH3b6=SPM_Pys81fi-_Eu=VXO8mETqV+s0YFC+8c1huv4dmh9Q@mail.gmail.com>
2022-08-04 18:29 ` Eli Zaretskii
2022-08-05  7:34   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors

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