Application: kactivitymanagerd (1.0)
KDE Platform Version: 4.7.95 (4.8 RC1 (4.7.95)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

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

The machine had just started up and I was logging in.  When I open the activity manager now, i see my activities, but with no names.  I am able to switch back and forth

-- Backtrace:
Application: KDE Activity Manager (kactivitymanagerd), signal: Segmentation fault
__lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
[Current thread is 1 (Thread 0x7fb220928780 (LWP 1810))]

Thread 2 (Thread 0x7fb211562700 (LWP 1872)):
[KCrash Handler]
#6  malloc_consolidate (av=0x7fb20c000020) at malloc.c:5153
#7  0x00007fb21df15dff in malloc_consolidate (av=0x7fb20c000020) at malloc.c:5115
#8  _int_malloc (av=0x7fb20c000020, bytes=17179869112) at malloc.c:4373
#9  0x00007fb21df18902 in __GI___libc_malloc (bytes=17179869112) at malloc.c:3675
#10 0x00007fb21e2f54cd in operator new(unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007fb21e2f55e9 in operator new[](unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007fb21f2c25e7 in QHashData::detach_helper2 (this=0x7fb20c0037b0, node_duplicate=0x7fb21b8ef360, node_delete=0x7fb21b8ef1c0, nodeSize=40, nodeAlign=8) at tools/qhash.cpp:217
#13 0x00007fb21b8ee488 in Soprano::Error::ErrorCache::clearError() const () from /usr/lib/libsoprano.so.4
#14 0x00007fb21b8ee9e8 in Soprano::Error::ErrorCache::setError(Soprano::Error::Error const&) const () from /usr/lib/libsoprano.so.4
#15 0x00007fb21b68685c in Soprano::Client::DBusModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib/libsopranoclient.so.1
#16 0x00007fb21f98e1a2 in Nepomuk::MainModel::executeQuery (this=0x146eae0, query=..., language=Soprano::Query::QueryLanguageSparql, userQueryLanguage=...) at ../../nepomuk/core/nepomukmainmodel.cpp:212
#17 0x00007fb21b8fdbd7 in Soprano::FilterModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib/libsoprano.so.4
#18 0x00007fb21156a03c in ?? () from /usr/lib/kde4/activitymanager_plugin_nepomuk.so
#19 0x00007fb211570dd8 in ?? () from /usr/lib/kde4/activitymanager_plugin_nepomuk.so
#20 0x00007fb21f2a6d05 in QThreadPrivate::start (arg=0x153fb50) at thread/qthread_unix.cpp:331
#21 0x00007fb21d2fcefc in start_thread (arg=0x7fb211562700) at pthread_create.c:304
#22 0x00007fb21df7d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#23 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb220928780 (LWP 1810)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007fb21df1a9df in _L_lock_10501 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fb21df18d71 in __GI___libc_free (mem=0x7fb20c000020) at malloc.c:3736
#3  0x00007fb21f39152e in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1323620) at kernel/qcoreapplication.cpp:1444
#4  0x00007fb21f3b8a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#5  postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#6  0x00007fb21a931a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fb21a932258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fb21a932429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fb21f3b8ed6 in QEventDispatcherGlib::processEvents (this=0x1324ce0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#10 0x00007fb21e7e607e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#11 0x00007fb21f38ccf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007fb21f38cef7 in QEventLoop::exec (this=0x7fff480dae70, flags=...) at kernel/qeventloop.cpp:201
#13 0x00007fb21f391789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#14 0x0000000000405a14 in ?? ()
#15 0x00007fb21debd30d in __libc_start_main (main=0x405880, argc=1, ubp_av=0x7fff480db0d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff480db0c8) at libc-start.c:226
#16 0x0000000000405a69 in _start ()

Possible duplicates by query: bug 289054, bug 284552, bug 233226, bug 228536, bug 228085.

Reported using DrKonqi