Bug 1102113

Created attachment 900000 [details]
File: backtrace

Created attachment 900001 [details]
File: cgroup

Created attachment 900002 [details]
File: core_backtrace

Created attachment 900003 [details]
File: dso_list

Created attachment 900004 [details]
File: environ

Created attachment 900005 [details]
File: limits

Created attachment 900006 [details]
File: maps

Created attachment 900007 [details]
File: open_fds

Created attachment 900009 [details]
File: proc_pid_status

Created attachment 900010 [details]
File: var_log_messages

Another user experienced a similar problem:

Too easy to produce,just open gnome-font-viewer,scroll down,then it crashes.

reporter:       libreport-2.2.2
backtrace_rating: 4
cmdline:        gnome-font-viewer
crash_function: _gdk_x11_display_error_event
executable:     /usr/bin/gnome-font-viewer
kernel:         3.14.5-200.fc20.x86_64
package:        gnome-font-viewer-3.10.0-1.fc20
reason:         gnome-font-viewer killed by SIGTRAP
runlevel:       N 5
type:           CCpp
uid:            1000

I can't reproduce here. Perhaps the crash only happens with a specific font file. For instance, the original reporter opened gnome-font-viewer with a specific font file called ITCEDSCR.TTF . Can you attach that file or any other that you find to cause a crash?

(In reply to Rui Matos from comment #12)
> I can't reproduce here. Perhaps the crash only happens with a specific font
> file. For instance, the original reporter opened gnome-font-viewer with a
> specific font file called ITCEDSCR.TTF . Can you attach that file or any
> other that you find to cause a crash?

I can't reproduce this either. I rebooted my laptop and tried several times,but it never crashes again. Interestingly at the only time it crashed,it showed fonts instantly,for the rest of my tries it hangs first(app behaves normally,just showing a blank window),and then shows fonts. Actually during the time I'm unable to do anything like 'scroll down'. Maybe that case I've experienced is rare or very hard to reproduce,so if you wanna diagnose this problem in more detail,I'm sorry I may not be able to help more.

try deleting your thumbnails cache before running it. Should be in ~/.cache/thumbnails

(In reply to Rui Matos from comment #14)
> try deleting your thumbnails cache before running it. Should be in
> ~/.cache/thumbnails

Sorry for late response,I've been preparing exams these days. I then tried renaming that folder,but still couldn't reproduce. Well,I recall that the reason why I opened font viewer is that I had just finished installed some fonts as dependency for some texlive-* packages,and I wanted to figure out which one looks enjoyful for Chinese. Or do you think if this may contribute to the problem? Say,a certain font right after installation could have effect on this?

(In reply to 汪明衡 from comment #15)
> Sorry for late response,I've been preparing exams these days. I then tried
> renaming that folder,but still couldn't reproduce. Well,I recall that the
> reason why I opened font viewer is that I had just finished installed some
> fonts as dependency for some texlive-* packages,and I wanted to figure out

Can you post here which packages are those fonts in? Perhaps by looking at your /var/log/yum.log

(In reply to Rui Matos from comment #16)
> Can you post here which packages are those fonts in? Perhaps by looking at
> your /var/log/yum.log

Do these make sense?These are all I've got.

Jun 11 15:54:41 Erased: rhythmbox-3.0.3-1.fc20.x86_64
Jun 11 16:10:23 Installed: latex2html-2012-4.fc20.noarch
Jun 11 16:31:29 Installed: 3:texlive-dejavu-svn31771.2.33-5.fc20.noarch
Jun 11 18:15:15 Installed: rpmrebuild-2.11-1.fc20.noarch
Jun 11 18:20:14 Installed: master-pdf-editor-1.9.25-2.x86_64
Jun 11 19:34:42 Installed: 3:texlive-translations-svn31800.1.1a-5.fc20.noarch
Jun 11 19:34:43 Installed: 3:texlive-pgfopts-svn23320.2.1-5.fc20.noarch
Jun 11 19:34:43 Installed: 3:texlive-idxcmds-svn31557.0.2a-5.fc20.noarch
Jun 11 19:34:44 Installed: 3:texlive-fnpct-svn32474.0.4a-5.fc20.noarch
Jun 11 19:34:45 Installed: 3:texlive-mweights-svn31268.0-5.fc20.noarch
Jun 11 19:34:45 Installed: 3:texlive-xpatch-svn27897.0.2-5.fc20.noarch
Jun 11 19:34:46 Installed: 3:texlive-imakeidx-svn31166.1.3a-5.fc20.noarch
Jun 11 19:34:46 Installed: 3:texlive-eepic-svn15878.1.1e-5.fc20.noarch
Jun 11 19:34:47 Installed: 3:texlive-logreq-svn19640.1.0-5.fc20.noarch
Jun 11 19:34:48 Installed: 3:texlive-biblatex-svn32245.2.8a-5.fc20.noarch
Jun 11 19:34:48 Installed: 3:texlive-kantlipsum-svn27994.0.5-5.fc20.noarch
Jun 11 19:34:49 Installed: 3:texlive-ntheorem-svn27609.1.31-5.fc20.noarch
Jun 11 19:34:50 Installed: 3:texlive-collectbox-svn26557.0-5.fc20.noarch
Jun 11 19:34:50 Installed: 3:texlive-needspace-svn29601.1.3d-5.fc20.noarch
Jun 11 19:34:51 Installed: 3:texlive-fontaxes-svn24880.1.0c-5.fc20.noarch
Jun 11 19:34:55 Installed: 3:texlive-libertine-svn31928.5.3.0-5.fc20.noarch
Jun 11 19:34:56 Installed: 3:texlive-ifoddpage-svn23979.0-5.fc20.noarch
Jun 11 19:34:56 Installed: 3:texlive-adjustbox-svn26555.0-5.fc20.noarch
Jun 11 19:34:57 Installed: 3:texlive-lipsum-svn22098.v1.2-5.fc20.noarch
Jun 11 19:34:58 Installed: 3:texlive-mdframed-svn31075.1.9b-5.fc20.noarch
Jun 11 19:34:59 Installed: 3:texlive-superiors-svn31943.1.03-5.fc20.noarch
Jun 11 19:35:00 Installed: 3:texlive-cnltx-svn32212.0.9-5.fc20.noarch
Jun 11 19:35:00 Installed: 3:texlive-exsheets-svn32363.0.12a-5.fc20.noarch
Jun 11 20:54:49 Installed: 3:texlive-skull-svn25608.0.1-5.fc20.noarch
Jun 11 21:13:39 Installed: 3:texlive-slantsc-svn25007.2.11-5.fc20.noarch
Jun 11 21:13:41 Installed: 3:texlive-droid-svn23912.2.1-5.fc20.noarch

Another user experienced a similar problem:

The error ocurred a few seconds after I started up the viewer. No idea what caused it since it's been working fine since then.

reporter:       libreport-2.2.2
backtrace_rating: 4
cmdline:        gnome-font-viewer
crash_function: _gdk_x11_display_error_event
executable:     /usr/bin/gnome-font-viewer
kernel:         3.14.8-200.fc20.x86_64
package:        gnome-font-viewer-3.10.0-1.fc20
reason:         gnome-font-viewer killed by SIGTRAP
runlevel:       N 5
type:           CCpp
uid:            1000

Happens randomly on startup with no font specified.

Reproduced on both Rawhide and latest code from master

(In reply to Vadim Rutkovsky from comment #19)
> Happens randomly on startup with no font specified.
> 
> Reproduced on both Rawhide and latest code from master

I still can't reproduce here.

Can you provide a stacktrace? Please set the environment variable GDK_SYNCHRONIZE=1 before capturing it since the crash seems to be an X error.

Created attachment 917084 [details]
Stacktrace

(In reply to Rui Matos from comment #20)
> (In reply to Vadim Rutkovsky from comment #19)
> > Happens randomly on startup with no font specified.
> > 
> > Reproduced on both Rawhide and latest code from master
> 
> I still can't reproduce here.
> 
> Can you provide a stacktrace? Please set the environment variable
> GDK_SYNCHRONIZE=1 before capturing it since the crash seems to be an X error.

See attached stacktrace and console output.

I'm running gnome-font-viewer-3.12.0-2.fc21.x86_64, though afaik it should be the same for 3.10 also

Can you try the patch in the upstream bug? I still can't reproduce :-(

*** Bug 1101739 has been marked as a duplicate of this bug. ***

*** Bug 1118951 has been marked as a duplicate of this bug. ***

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