Application: kactivitymanagerd (1.0)
KDE Platform Version: 4.7.95 (4.8 RC1 (4.7.95)
Qt Version: 4.7.4
Operating System: Linux 3.1.6-desktop-0.rc1.1.mga2 x86_64
Distribution: "Mageia Cauldron"

-- Information about the crash:
- What I was doing when the application crashed:
kactivitymanager crashed on startup using a fresh user (no ~/.kde4 folder)

The crash can be reproduced some of the time.

-- Backtrace:
Application: Gestionnaire des activités de KDE (kactivitymanagerd), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0725c31720 (LWP 24279))]

Thread 2 (Thread 0x7f07155d7700 (LWP 24290)):
[KCrash Handler]
#6  QMutex::lock (this=0x8) at thread/qmutex.cpp:151
#7  0x00007f0720889078 in QMutexLocker (m=<optimized out>, this=0x7f07155d65e0) at /usr/lib/qt4/include/QtCore/qmutex.h:102
#8  Soprano::Error::ErrorCache::clearError (this=0x142d4f0) at /usr/src/debug/soprano-2.7.4/soprano/error.cpp:238
#9  0x00007f07208895f8 in Soprano::Error::ErrorCache::setError (this=0x142d4f0, error=...) at /usr/src/debug/soprano-2.7.4/soprano/error.cpp:225
#10 0x00007f072061e8af in Soprano::Client::DBusModel::executeQuery (this=0x142d4e0, query=<optimized out>, language=<optimized out>, userQueryLanguage=<optimized out>) at /usr/src/debug/soprano-2.7.4/client/dbus/dbusmodel.cpp:112
#11 0x00007f0724cc08ab in Nepomuk::MainModel::executeQuery (this=0x142c700, query=..., language=<optimized out>, userQueryLanguage=...) at /usr/src/debug/kdelibs-4.7.95/nepomuk/core/nepomukmainmodel.cpp:212
#12 0x00007f07208976cc in Soprano::FilterModel::executeQuery (this=0x12df0f0, query=<optimized out>, language=<optimized out>, userQueryLanguage=<optimized out>) at /usr/src/debug/soprano-2.7.4/soprano/filtermodel.cpp:164
#13 0x00007f07161f6a2c in ?? () from /usr/lib64/kde4/activitymanager_plugin_nepomuk.so
#14 0x00007f07161f7f38 in ?? () from /usr/lib64/kde4/activitymanager_plugin_nepomuk.so
#15 0x00007f07245f09e5 in QThreadPrivate::start (arg=0x13dd5b0) at thread/qthread_unix.cpp:331
#16 0x00007f072304fb99 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f072333e0cd in clone () from /lib64/libc.so.6
#18 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0725c31720 (LWP 24279)):
#0  0x00007f07233310dd in read () from /lib64/libc.so.6
#1  0x00007f071fb10baf in read (__nbytes=16, __buf=0x7fff06bf8370, __fd=<optimized out>) at /usr/include/bits/unistd.h:45
#2  g_wakeup_acknowledge (wakeup=0x12f3010) at gwakeup.c:212
#3  0x00007f071fad618d in g_main_context_check (context=0x12f3ab0, max_priority=2147483647, fds=0x14630e0, n_fds=5) at gmain.c:2955
#4  0x00007f071fad6666 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x12f3ab0, self=<optimized out>) at gmain.c:3118
#5  g_main_context_iterate (context=0x12f3ab0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3058
#6  0x00007f071fad67f4 in g_main_context_iteration (context=0x12f3ab0, may_block=1) at gmain.c:3182
#7  0x00007f0724701e7f in QEventDispatcherGlib::processEvents (this=0x12c2ec0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#8  0x00007f0723b50f8e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#9  0x00007f07246d6412 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007f07246d660f in QEventLoop::exec (this=0x7fff06bf8520, flags=...) at kernel/qeventloop.cpp:201
#11 0x00007f07246da7d7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#12 0x0000000000405b54 in ?? ()
#13 0x00007f072328532d in __libc_start_main () from /lib64/libc.so.6
#14 0x0000000000405ba9 in _start ()

Possible duplicates by query: bug 281964.

Reported using DrKonqi