GNU bug report logs - #20875
24.4; gtk assertion failed when setting font via menu

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Adam Connor <adamc55 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.4; Error reported when setting font
Date: Mon, 22 Jun 2015 15:04:18 -0500

[Message part 1 (text/plain, inline)]

From: Adam Connor <adam <at> localhost.localdomain>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.4; Error reported when setting font
--text follows this line--

Emacs did NOT crash. However, I noticed I get
      emacs _gtk_style_cascade_set_parent: assertion 'parent->parent ==
NULL' failedemacs set default font
if I set the font to Droid Sans Mono Regular (12 point) in the menu dialog.

Doubt this helps but this is in stock debian 8.1 running in virtualbox.



In GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.5)
 of 2015-03-07 on trouble, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11604000
System Description:    Debian GNU/Linux 8.1 (jessie)

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/emacs24:/etc/emacs:/usr/local/share/emacs/24.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.4/site-lisp:/usr/share/emacs/site-lisp
 --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/emacs24:/etc/emacs:/usr/local/share/emacs/24.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.4/site-lisp:/usr/share/emacs/site-lisp
 --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars
 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat
 -Werror=format-security -Wall' CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-z,relro'

Important settings:
  value of $LANG: en_US.utf8
  locale-coding-system: utf-8

Major mode: Emacs-Lisp

Minor modes in effect:
  my-keys-minor-mode: t
  tabbar-mwheel-mode: t
  tabbar-mode: t
  global-nlinum-mode: t
  nlinum-mode: t
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Recent input:
<down-mouse-1> <mouse-movement> <mouse-1> M-x r e p
o r t - e m a c s - b u g <return>

Recent messages:
Directory name in buffer names (uniquify) disabled globally
I guess we don't have pype-utils available.
I guess we don't have virtualenv-utils available.
inform.c has auto save data; consider M-x recover-this-file
Setting up indent for shell type sh
Indentation variables are now local.
Indentation setup for shell type sh
Wrote /home/adam/.emacs.d/.emacs.desktop.lock
Desktop: 2 frames, 4 buffers restored.
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
/home/adam/.emacs.d/elpa/dash-2.10.0/dash hides ~/.emacs.d/lib/dash
~/.emacs.d/lib/tabbar-master/revive hides ~/.emacs.d/lib/revive
/usr/share/emacs/24.4/site-lisp/debian-startup hides
/usr/share/emacs/site-lisp/debian-startup
~/.emacs.d/lib/indent hides /usr/share/emacs/24.4/lisp/indent
/usr/share/emacs24/site-lisp/dictionaries-common/flyspell hides
/usr/share/emacs/24.4/lisp/textmodes/flyspell
/usr/share/emacs24/site-lisp/dictionaries-common/ispell hides
/usr/share/emacs/24.4/lisp/textmodes/ispell
/usr/share/emacs/site-lisp/rst hides
/usr/share/emacs/24.4/lisp/textmodes/rst

Features:
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cl-lib info easymenu s file-utils package epg-config misterioso-theme
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menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
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Memory information:
((conses 16 277053 20368)
 (symbols 48 34401 0)
 (miscs 40 300 232)
 (strings 32 60247 7767)
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 (intervals 56 541 64)
 (buffers 960 15)
 (heap 1024 64384 1201))

[Message part 2 (text/html, inline)]

Message #10 received at 20875 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Adam Connor <adamc55 <at> gmail.com>
Cc: 20875 <at> debbugs.gnu.org
Subject: Re: bug#20875: 24.4; Error reported when setting font
Date: Wed, 09 Oct 2019 05:50:11 +0200

Adam Connor <adamc55 <at> gmail.com> writes:

> Emacs did NOT crash. However, I noticed I get
>       emacs _gtk_style_cascade_set_parent: assertion 'parent->parent == NULL'
> failedemacs set default font
> if I set the font to Droid Sans Mono Regular (12 point) in the menu dialog.
>
> Doubt this helps but this is in stock debian 8.1 running in virtualbox.

(I'm going through old Emacs bug reports that unfortunately got no
response at the time.)

I've seen similar warnings myself, but I wonder whether they are
internal Gtk warnings that we can do something about or not?

Does anybody know?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #13 received at 20875 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Adam Connor <adamc55 <at> gmail.com>, 20875 <at> debbugs.gnu.org
Subject: Re: bug#20875: 24.4; Error reported when setting font
Date: Wed, 19 Aug 2020 13:15:45 -0400

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Adam Connor <adamc55 <at> gmail.com> writes:
>
>> Emacs did NOT crash. However, I noticed I get
>>       emacs _gtk_style_cascade_set_parent: assertion 'parent->parent == NULL'
>> failedemacs set default font
>> if I set the font to Droid Sans Mono Regular (12 point) in the menu dialog.
>>
>> Doubt this helps but this is in stock debian 8.1 running in virtualbox.
>
> (I'm going through old Emacs bug reports that unfortunately got no
> response at the time.)
>
> I've seen similar warnings myself, but I wonder whether they are
> internal Gtk warnings that we can do something about or not?
>
> Does anybody know?

From searching online for this error message, it seems like we might be
setting the parent twice somewhere:

https://mail.gnome.org/archives/gtk-app-devel-list/2000-September/msg00001.html

But grepping for "cascade_set_parent" in our src directory yields no
matches, not that I'm sure that helps much.

In any case, I tried setting the font to "Droid Sans" from the menu in a
GTK build, but I didn't see any warnings.  Is anyone still seing this?

Best regards,
Stefan Kangas

Message #16 received at 20875 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: Adam Connor <adamc55 <at> gmail.com>, 20875 <at> debbugs.gnu.org
Subject: Re: bug#20875: 24.4; Error reported when setting font
Date: Thu, 20 Aug 2020 14:45:37 +0200

Stefan Kangas <stefan <at> marxist.se> writes:

> In any case, I tried setting the font to "Droid Sans" from the menu in a
> GTK build, but I didn't see any warnings.  Is anyone still seing this?

I don't think I've seen a warning like that in quite a while, and they
used to happen semi-regularly in the bad old days.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #21 received at 20875-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Adam Connor <adamc55 <at> gmail.com>, 20875-done <at> debbugs.gnu.org
Subject: Re: bug#20875: 24.4; Error reported when setting font
Date: Thu, 20 Aug 2020 07:20:18 -0700

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> I don't think I've seen a warning like that in quite a while, and they
> used to happen semi-regularly in the bad old days.

OK, I guess this has been resolved then and I'm therefore closing this
now.  If anyone is still seeing this, please reply to this email (use
"Reply to all" in your email client) and we can reopen the bug report.

Best regards,
Stefan Kangas

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