Application: digikam (2.6.0-beta2) KDE Platform Version: 4.7.4 (4.7.4) Qt Version: 4.8.0 Operating System: Linux 3.2.7-1.fc16.x86_64 x86_64 Distribution (Platform): Fedora RPMs -- Information about the crash: - What I was doing when the application crashed: I just started digikam According to the trace, the crash is related to the notification window. I may add that I am quite "frenetic" with my desktop (Gnome 3), and the crash seems to occur when I start digikam, then immediately do something else. If I wait for digikam to start, then for the task that scan new items to finish properly, nothing bad happens. The crash can be reproduced some of the time. -- Backtrace: Application: digiKam (digikam), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7f25b91b8a40 (LWP 3660))] Thread 5 (Thread 0x7f25a985f700 (LWP 3695)): #0 0x000000389b80bae5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000038ac07c07b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4 #2 0x00000000005d1d10 in Digikam::ScanController::run (this=0x2cb15e0) at /home/goulou/digikam/digikam-sc/core/digikam/database/scancontroller.cpp:647 #3 0x00000038ac07bb6b in ?? () from /usr/lib64/libQtCore.so.4 #4 0x000000389b807d90 in start_thread () from /lib64/libpthread.so.0 #5 0x000000389b4f0f5d in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7f25a905e700 (LWP 3696)): #0 0x000000389b80af9d in pthread_mutex_unlock () from /lib64/libpthread.so.0 #1 0x000000389d444465 in g_main_context_query () from /lib64/libglib-2.0.so.0 #2 0x000000389d444eda in ?? () from /lib64/libglib-2.0.so.0 #3 0x000000389d44549c in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #4 0x00000038ac1a7dc6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #5 0x00000038ac178182 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #6 0x00000038ac1783d7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #7 0x00000038ac078b27 in QThread::exec() () from /usr/lib64/libQtCore.so.4 #8 0x00000038ac157e7f in ?? () from /usr/lib64/libQtCore.so.4 #9 0x00000038ac07bb6b in ?? () from /usr/lib64/libQtCore.so.4 #10 0x000000389b807d90 in start_thread () from /lib64/libpthread.so.0 #11 0x000000389b4f0f5d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7f25a885d700 (LWP 3728)): #0 0x000000389b80bae5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000038ac07c07b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4 #2 0x00007f25b995e499 in Digikam::ParkingThread::run (this=0x2eda180) at /home/goulou/digikam/digikam-sc/core/libs/threads/threadmanager.cpp:119 #3 0x00000038ac07bb6b in ?? () from /usr/lib64/libQtCore.so.4 #4 0x000000389b807d90 in start_thread () from /lib64/libpthread.so.0 #5 0x000000389b4f0f5d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7f258bbe0700 (LWP 3764)): #0 0x000000389b80be4f in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000038ac07bfdf in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4 #2 0x00000038ac06f5af in ?? () from /usr/lib64/libQtCore.so.4 #3 0x00000038ac07bb6b in ?? () from /usr/lib64/libQtCore.so.4 #4 0x000000389b807d90 in start_thread () from /lib64/libpthread.so.0 #5 0x000000389b4f0f5d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f25b91b8a40 (LWP 3660)): [KCrash Handler] #6 0x00000038aec0e008 in QWidget::pos() const () from /usr/lib64/libQtGui.so.4 #7 0x00007f25b997c7e2 in showNotification (icon=..., text=..., caption=..., this=0x7c1d690) at /home/goulou/digikam/digikam-sc/core/libs/widgets/common/knotificationwrapper.cpp:62 #8 Digikam::KNotificationWrapper (eventId=..., message=..., parent=0x0, windowTitle=..., pixmap=<optimized out>) at /home/goulou/digikam/digikam-sc/core/libs/widgets/common/knotificationwrapper.cpp:101 #9 0x000000000051d0c9 in Digikam::MaintenanceTool::slotDone (this=0x3d64a70) at /home/goulou/digikam/digikam-sc/core/utilities/maintenance/maintenancetool.cpp:87 #10 0x00000038ac191f16 in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4 #11 0x00000038aebc9994 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4 #12 0x00000038aebce813 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4 #13 0x00000038b3050766 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5 #14 0x00000038ac17904c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4 #15 0x00000038ac17cada in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4 #16 0x00000038ac1a7933 in ?? () from /usr/lib64/libQtCore.so.4 #17 0x000000389d444acd in g_main_context_dispatch () from /lib64/libglib-2.0.so.0 #18 0x000000389d4452c8 in ?? () from /lib64/libglib-2.0.so.0 #19 0x000000389d44549c in g_main_context_iteration () from /lib64/libglib-2.0.so.0 #20 0x00000038ac1a7d5f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #21 0x00000038aec6c66e in ?? () from /usr/lib64/libQtGui.so.4 #22 0x00000038ac178182 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #23 0x00000038ac1783d7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #24 0x00000038ac17cdd5 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4 #25 0x000000000048d7ab in main (argc=5, argv=<optimized out>) at /home/goulou/digikam/digikam-sc/core/digikam/main/main.cpp:232 Reported using DrKonqi
Gnome or KDE desktop ? It crash in Qt4... There is a packaging problem on your computer ? Gilles Caulier
Sorry, the automatic bug report tool did not include all the usual stuff : -OS : fedora 16 (fully updated) -Desktop : Gnome 3 -digikam : built from source (latest git as of yesterday evening) As You suggest, I'm actually not sure this bug is relative to digikam, and I don't use many other Qt-based software, so I can't say for the others.
Git commit cd6c2eb59770eb3f1379ece36fabddb5aef13620 by Marcel Wiesweg. Committed on 01/03/2012 at 22:17. Pushed by mwiesweg into branch 'master'. Do not crash if null parent is given to notification wrapper This can happen at startup. We could use the desktop window then, but I believe putting a notifier just somewhere is more wrong than right, better skip it then. M +2 -1 NEWS M +4 -0 libs/widgets/common/knotificationwrapper.cpp http://commits.kde.org/digikam/cd6c2eb59770eb3f1379ece36fabddb5aef13620