Bug 259748

Please provide a gdb backtrace to hack...

http://www.digikam.org/drupal/contrib

Gilles Caulier

Interesting, does it also crash with other export plugins as well? This most certainly shouldn't happen, nor with export plugins. Can you please provide some predecessing lines from your /var/log/messages? And also the X crash log if possible (located in /var/log/Xorg.0.log.old if you reboot back into gnome, if back to console only, don't use the .old)

Created attachment 55132 [details]
/var/log/message from 21 dec 2010

Created attachment 55133 [details]
Xorg.0.log.old from the crashed session of 21 dec 2010

Hi there,
here are more informations,
for an unknown reason, (maybe installing the -dbg package) 
now digikam/kipi 1.6.0 acts like the 1.2.0,
X crashed complaining about a segfault #11.

See attached files...

I'm currently trying to make a backtrace with gdb but as X is crashing, it's a bit hard.

Created attachment 55152 [details]
Complete backtrace

Okay, so this is a complete backtrace I've made this morning,
including full bt, registers as explained here : https://wiki.ubuntu.com/Backtrace
Hope it will help !

I've also tested other exportation tools, they seem to work fine, at least, launching them do not kills Xorg.

Thanks, Merry christmas/happy new year !

Sound like a Xine plugin crash through phonon KDE component.

Gilles Caulier

Sound like a Xine plugin crash through phonon KDE component.

Gilles Caulier

(In reply to comment #8)
> Sound like a Xine plugin crash through phonon KDE component.

I tried to reinstall

(In reply to comment #8)
> Sound like a Xine plugin crash through phonon KDE component.

I tried to reinstall the xine-phonon, but flickr export still kills Xorg.

Could you please also install phonon-dbg and specify which exact KDE version you are using? We would need a new backtrace with the phonon debugging symbols as well. Also please paste the backtrace in the comment instead of attaching it, else it is not searchable.

Created attachment 55182 [details]
gdb bacttrace, registers, thread bt... with phonon-dbg added

Job done !

I'm using Ubuntu 10.10 with GNOME and standard package (except the ppa for digikam 1.6)

ercete@citrouille:~$ kded4 --version
Qt : 4.7.0
Plate-forme de développement de KDE : 4.5.1 (KDE 4.5.1)
Démon de KDE : $Id: kded.cpp 1156841 2010-07-29 19:59:05Z zander $

Looks like this is the culprit:
Thread 13 (Thread 0x7fffc1414700 (LWP 2424)):
#0  0x00007fffc2448fe6 in ?? () from /usr/lib/xine/plugins/1.28/xineplug_vo_out_xcbxv.so
#1  0x00007fffcc8220a3 in ?? () from /usr/lib/libxine.so.1
#2  0x00007fffccad7b46 in Phonon::Xine::VideoWidgetXT::~VideoWidgetXT (this=0x1a5dcb0, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../xine/videowidget.cpp:241
#3  0x00007fffcca9563f in ~QExplicitlySharedDataPointer (this=<value optimized out>, data=0x0) at /usr/include/qt4/QtCore/qshareddata.h:159
#4  node_destruct (this=<value optimized out>, data=0x0) at /usr/include/qt4/QtCore/qlist.h:418
#5  QList<QExplicitlySharedDataPointer<Phonon::Xine::SharedData> >::free (this=<value optimized out>, data=0x0) at /usr/include/qt4/QtCore/qlist.h:741
#6  0x00007fffcca95a67 in ~QList (this=0x19d5610, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qlist.h:716
#7  Phonon::Xine::KeepReference<0>::~KeepReference (this=0x19d5610, __in_chrg=<value optimized out>) at ../../xine/keepreference.h:45
#8  0x00007ffff10adc08 in QObject::event (this=0x19d5610, e=0x0) at kernel/qobject.cpp:1202
#9  0x00007ffff1cacfdc in QApplicationPrivate::notify_helper (this=0xb09750, receiver=0x19d5610, e=0x19ceff0) at kernel/qapplication.cpp:4396
#10 0x00007ffff1cb2aed in QApplication::notify (this=0x7fffffffd7c0, receiver=0x19d5610, e=0x19ceff0) at kernel/qapplication.cpp:4277
#11 0x00007ffff29ff156 in KApplication::notify (this=0x7fffffffd7c0, receiver=0x19d5610, event=0x19ceff0) at ../../kdeui/kernel/kapplication.cpp:310
#12 0x00007ffff109bcdc in QCoreApplication::notifyInternal (this=0x7fffffffd7c0, receiver=0x19d5610, event=0x19ceff0) at kernel/qcoreapplication.cpp:732
#13 0x00007ffff109ec22 in sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x1f1d200) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#14 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x1f1d200) at kernel/qcoreapplication.cpp:1373
#15 0x00007ffff10c8653 in sendPostedEvents (s=0x1f1e010) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#16 postEventSourceDispatch (s=0x1f1e010) at kernel/qeventdispatcher_glib.cpp:277
#17 0x00007fffec66b342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#18 0x00007fffec66f2a8 in ?? () from /lib/libglib-2.0.so.0
#19 0x00007fffec66f45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#20 0x00007ffff10c8193 in QEventDispatcherGlib::processEvents (this=0x1f1d640, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#21 0x00007ffff109aa02 in QEventLoop::processEvents (this=<value optimized out>, flags=DWARF-2 expression error: DW_OP_reg operations must be used either alone or in conjuction with DW_OP_piece or DW_OP_bit_piece.
) at kernel/qeventloop.cpp:149
#22 0x00007ffff109adec in QEventLoop::exec (this=0x7fffc1413d30, flags=DWARF-2 expression error: DW_OP_reg operations must be used either alone or in conjuction with DW_OP_piece or DW_OP_bit_piece.
) at kernel/qeventloop.cpp:201
#23 0x00007ffff0fa52fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#24 0x00007fffcca972b0 in Phonon::Xine::XineThread::run (this=0x1f1d000) at ../../xine/xinethread.cpp:143
#25 0x00007ffff0fa827e in QThreadPrivate::start (arg=0x1f1d000) at thread/qthread_unix.cpp:266
#26 0x00007ffff0d1d971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#27 0x00007fffef7f092d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#28 0x0000000000000000 in ?? ()

This is a problem upstream with libxine, I strongly suggest you upgrade to latest stable KDE 4.5.4

Problem resolved :
I installed the kubuntu-desktop package in add to my standard ubuntu-desktop. Now digikam and importation dialog boxes works well without crashing Xorg.
I also saw a recent update of Xorg, maybe it is related too.
Anyway, maybe a simple package is missing in the Digikam package ?

Thanks to everyone !
( & happy new year !)

Not reproducible since digiKam use QtAv + ffmpeg to handle video files.