[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=376990

aux...@gmail.com changed:

   What|Removed |Added

 CC||aux...@gmail.com

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

Tristan Miller  changed:

   What|Removed |Added

   See Also||https://bugs.kde.org/show_b
   ||ug.cgi?id=384540

--- Comment #14 from Tristan Miller  ---
(In reply to Albert Astals Cid from comment #13)
> Defenitely not an okular bug, i guess a Plasma bug makes sense since you say
> that you can only reproduce this inside a Plasma session.

OK, reported as Bug 384540.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #13 from Albert Astals Cid  ---
Defenitely not an okular bug, i guess a Plasma bug makes sense since you say
that you can only reproduce this inside a Plasma session.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #12 from Tristan Miller  ---
(In reply to Luigi Toscano from comment #11)
> If you can reproduce with even demo/simple Qt5 applications, and maybe from
> an environment which is not Plasma, this may be a bug or a quirk in Qt; you
> may try to report it to Qt.

I can reproduce the problem reported by jap...@linux01.gwdg.de (i.e., KDE
applications launched from Emacs crash when their pull-down menus are
activated).  The problem occurs only when running Plasma, and only with KDE
applications.  (That is, the problem does not occur with other desktop
environments, such as LXQt, and the problem does not occur with non-KDE Qt
applications, such as Clementine and Skype 4.3.0.37.)

Given this, where would be the best place to report this bug?

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Luigi Toscano]

https://bugs.kde.org/show_bug.cgi?id=376990

Luigi Toscano  changed:

   What|Removed |Added

 CC||luigi.tosc...@tiscali.it

--- Comment #11 from Luigi Toscano  ---
(In reply to jappel from comment #10)
> When opening an xterm from emacs instead of the viewer I find that a lot of
> qt programs crash deterministically if called from within this xterm
> (konsole, kruler, /usr/lib64/qt5/examples/gui/openglwindow/openglwindow). It
> turns out the guilty part is that emacs defines the environment variable
> XLIB_SKIP_ARGB_VISUALS, i.e. if I call 
> XLIB_SKIP_ARGB_VISUALS='' okular then okular crashes as soon as i open the
> file menu no matter the actual value of the environment variable.

If you can reproduce with even demo/simple Qt5 applications, and maybe from an
environment which is not Plasma, this may be a bug or a quirk in Qt; you may
try to report it to Qt.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=376990

jap...@linux01.gwdg.de changed:

   What|Removed |Added

 CC||jap...@linux01.gwdg.de

--- Comment #10 from jap...@linux01.gwdg.de ---
When opening an xterm from emacs instead of the viewer I find that a lot of qt
programs crash deterministically if called from within this xterm (konsole,
kruler, /usr/lib64/qt5/examples/gui/openglwindow/openglwindow). It turns out
the guilty part is that emacs defines the environment variable
XLIB_SKIP_ARGB_VISUALS, i.e. if I call 
XLIB_SKIP_ARGB_VISUALS='' okular then okular crashes as soon as i open the file
menu no matter the actual value of the environment variable.

Workaround: call the viewer with  
'(("Okular"
   ("env -u XLIB_SKIP_ARGB_VISUALS okular --unique file:%o"
(mode-io-correlate "#src:%n%a"))
   "okular"))
by setting TeX-view-program-list in AucTeX accordingly

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

Tristan Miller  changed:

   What|Removed |Added

 Status|NEEDSINFO   |RESOLVED
 Resolution|WAITINGFORINFO  |WORKSFORME

--- Comment #9 from Tristan Miller  ---
No longer reproducible for me.  I'm currently running Okular 1.1.2 with Qt
5.9.1.  I'm assuming I should mark this as RESOLVED/WORKSFORME.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #8 from Tristan Miller  ---
Downstream bug report: https://bugzilla.novell.com/show_bug.cgi?id=1028126

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=376990

Albert Astals Cid  changed:

   What|Removed |Added

 Resolution|--- |WAITINGFORINFO
 Status|UNCONFIRMED |NEEDSINFO

--- Comment #7 from Albert Astals Cid  ---
I'm sorry but your crash is deep down in Qt, nothing special that okular is
doing, just trying to show a tooltip.

So it's either a bug in Qt or in your driver.

https://github.com/qt/qtbase/commit/8d9c42e36217e14efa69974c2cdc8d90f465a959
*may* be the fix for this crash, if you know how to ask the opensuse people to
integrate that in their build it may be a good idea.

I'm going to set this as needs info, because with the info we have it very much
looks like not our problem.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #6 from Tristan Miller  ---
I'm running Qt 5.7.1 on openSUSE Tumbleweed.  I'm using the official binary
packages, not compiled from sources.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #5 from Albert Astals Cid  ---
Which Qt version are you running? Is it self compiled? If not which
distribution are you running?

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #4 from Tristan Miller  ---
Created attachment 104377
  --> https://bugs.kde.org/attachment.cgi?id=104377=edit
Yet another crash log.  This one doesn't have the strange null characters.

I attach another crash log, this one without the strange null characters.

Let me know if there's any further information you need.

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

--- Comment #3 from Tristan Miller  ---
Created attachment 104368
  --> https://bugs.kde.org/attachment.cgi?id=104368=edit
Another valgrind log, this time with more debugging symbols

Attached is another log of running the following via emacs:

/usr/bin/valgrind /usr/bin/okular --page 1 miller2017semeval.pdf
>&/tmp/okular.log

This time I had more debugging packages installed.  I see the log contains a
lot of null characters, following by what looks like some SQL statement.  This
looks very strange to me.  Maybe valgrind itself crashed?

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=376990

Albert Astals Cid  changed:

   What|Removed |Added

 CC||aa...@kde.org

--- Comment #2 from Albert Astals Cid  ---
Whatever provides the debug symbols for
/usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so

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[okular] [Bug 376990] Okular randomly crashes when launched from Emacs

[Tristan Miller]

https://bugs.kde.org/show_bug.cgi?id=376990

Tristan Miller  changed:

   What|Removed |Added

   See Also||https://bugs.kde.org/show_b
   ||ug.cgi?id=346264

--- Comment #1 from Tristan Miller  ---
Possibly related to Bug 346264.  Let me know if you want me to install any
other debug packages and I'll post some more logs.

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