Application: kactivitymanagerd (1.0)
KDE Platform Version: 4.8.1 (4.8.1) (Compiled from sources)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-21-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

The screen was locked, and it was waiting for me to enter a password.  10 minutes passes and the laptop (ASUS N53SN) tries to go to Sleep.  It hard freezes during this operation and nothing other than holding the power button and powering off and powering back on works.

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Activity Manager (kactivitymanagerd), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3ef7e7c780 (LWP 1636))]

Thread 2 (Thread 0x7f3ee6ec7700 (LWP 1639)):
[KCrash Handler]
#6  QString (other=..., this=0x7f3ee6ec6570) at ../../include/QtCore/../../src/corelib/tools/qstring.h:725
#7  QDBusAbstractInterface::interface (this=0x7f3ee00042b0) at qdbusabstractinterface.cpp:375
#8  0x00007f3ef2ab55da in ?? () from /usr/lib/libsopranoclient.so.1
#9  0x00007f3ef2ac0fd4 in Soprano::Client::DBusModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib/libsopranoclient.so.1
#10 0x00007f3ef6ec41bc in Nepomuk::MainModel::executeQuery (this=0x1a7dc70, query=..., language=Soprano::Query::QueryLanguageSparql, userQueryLanguage=...) at ../../nepomuk/core/nepomukmainmodel.cpp:212
#11 0x00007f3ee6ecf20c in ?? () from /usr/lib/kde4/activitymanager_plugin_nepomuk.so
#12 0x00007f3ee6ed5f58 in ?? () from /usr/lib/kde4/activitymanager_plugin_nepomuk.so
#13 0x00007f3ef67a0fcb in QThreadPrivate::start (arg=0x1ab54d0) at thread/qthread_unix.cpp:298
#14 0x00007f3ef47efe9a in start_thread (arg=0x7f3ee6ec7700) at pthread_create.c:308
#15 0x00007f3ef548c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3ef7e7c780 (LWP 1636)):
#0  0x00007f3ef547f0bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f3ef1fae89f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3ef1f73abd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3ef1f73f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3ef1f74124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3ef68cf3bf in QEventDispatcherGlib::processEvents (this=0x1902780, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007f3ef5ccad6e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#7  0x00007f3ef689ec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f3ef689eed7 in QEventLoop::exec (this=0x7fff22494d70, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f3ef68a3f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#10 0x00000000004059d4 in ?? ()
#11 0x00007f3ef53bb76d in __libc_start_main (main=0x405840, argc=1, ubp_av=0x7fff22494fd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff22494fc8) at libc-start.c:226
#12 0x0000000000405a29 in _start ()

This bug may be a duplicate of or related to bug 290234.

Possible duplicates by query: bug 297051, bug 294730, bug 293376.

Reported using DrKonqi