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bug#14038: 24.2; emacs24-x crashed with SIGSEGV in style_changed_cb()


From: Petr Hracek
Subject: bug#14038: 24.2; emacs24-x crashed with SIGSEGV in style_changed_cb()
Date: Tue, 26 Mar 2013 12:42:04 +0100
User-agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130311 Thunderbird/17.0.4

Hello,

we have similar case in Fedora 18
https://bugzilla.redhat.com/show_bug.cgi?id=922519

Description of problem:
I closed emacs with reboot purposes, but I am newbie, I don't know how to deal 
with emacs client and server together and I have not found proper guide, so It 
should be somtehing that related. Being Emacs-server still working at 
background probably receives the closing order as a kill signal. It's all what 
I know, by now...
If so what should I do?
Thanks.

Version-Release number of selected component:
emacs-24.2-6.fc18

Additional info:
backtrace_rating: 4
cmdline:        emacs --daemon
crash_function: style_changed_cb
executable:     /usr/bin/emacs-24.2
kernel:         3.8.2-206.fc18.i686
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 style_changed_cb at /usr/src/debug/emacs-24.2/src/gtkutil.c:1053
 #1 g_cclosure_marshal_VOID__PARAM at gmarshal.c:1042
 #7 g_object_notify_by_spec_internal at gobject.c:1135
 #8 g_object_notify at gobject.c:1177
 #9 _gtk_settings_handle_event at gtksettings.c:2595
 #10 gtk_main_do_event at gtkmain.c:1496
 #11 _gdk_event_emit at gdkevents.c:69
 #16 g_main_context_iteration at gmain.c:3351
 #17 gtk_main_iteration at gtkmain.c:1264
 #18 XTread_socket at /usr/src/debug/emacs-24.2/src/xterm.c:7187


Best regards
Petr

On 03/23/2013 08:48 AM, Walter Garcia-Fontes wrote:
This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgement at that address.

Please write in English if possible, as the Emacs maintainers
usually do not have translators for other languages.

Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':

Emacs 24.2 just crashes spontaneously without doing anything special.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
     `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
/usr/share/emacs/24.2/etc/DEBUG.

Please see:
https://bugs.launchpad.net/ubuntu/+source/emacs24/+bug/1028286

for a stacktrace of this crash.

In GNU Emacs 24.2.1 (x86_64-pc-linux-gnu, GTK+ Version 3.6.4)
  of 2013-03-05 on lamiak, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11303000
Configured using:
  `configure '--build' 'x86_64-linux-gnu' '--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/24.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.2/site-lisp:/usr/share/emacs/site-lisp'
  '--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
  '--with-x-toolkit=gtk3' '--with-toolkit-scroll-bars'
  'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
  --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
  'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'
  'CPPFLAGS=-D_FORTIFY_SOURCE=2''

Important settings:
   value of $LC_ALL: nil
   value of $LC_COLLATE: nil
   value of $LC_CTYPE: nil
   value of $LC_MESSAGES: nil
   value of $LC_MONETARY: en_US.UTF-8
   value of $LC_NUMERIC: en_US.UTF-8
   value of $LC_TIME: en_US.UTF-8
   value of $LANG: en_US.UTF-8
   value of $XMODIFIERS: nil
   locale-coding-system: utf-8-unix
   default enable-multibyte-characters: t

Major mode: Octave

Minor modes in effect:
   show-paren-mode: t
   tooltip-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
   auto-composition-mode: t
   auto-encryption-mode: t
   auto-compression-mode: t
   line-number-mode: t
   transient-mark-mode: t

Recent input:
C-h C-c C-x b <return> C-x C-p C-g C-x C-g C-j C-n
C-n C-h C-p C-n C-n C-v C-v C-v C-v C-v C-v C-v C-x
b <return> <escape> x r e p o <tab> r <tab> e m <tab>
<backspace> <backspace> <backspace> <backspace> u <tab>
<return>

Recent messages:
Restarting server
When done with a buffer, type C-x #
Note: file is write protected
View mode: type C-h for help, h for commands, q to quit.
Quit
Note: file is write protected
View mode: type C-h for help, h for commands, q to quit.
Auto-saving...done
Making completion list...
scroll-up-command: End of buffer

Load-path shadows:




--
S pozdravem / Best regards

Petr Hracek

Red Hat Czech s.r.o.
BaseOS Core Services Brno

Email: address@hidden
Web: www.cz.redhat.com






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