Application: nepomukserver (0.2)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
OS Summary:
Distribution: Ubuntu + KUbuntu 11.10
Kernel: 3.0.0-15-generic #25-Ubuntu SMP Mon Jan 2 17:44:42 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
	(but the problem there was before too)

Nepomukserver crashes on every logon on KDE Plasma. No error if I logon on Gnome (Unity). If I try to start it manually, then everytime nepomukserver crashes again with the same error.
I tried to remove my custom kde settings from my home folder (.kde/share/apps/nepomukserver and akonadi), but nothing to do.
I tried to start it by terminal and this is the error message:

KCrash: Application 'nepomukserver' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit
sock_file=<home-folder>/.kde/socket-<my-host-name>/kdeinit4__0
NepomukServer(3504): Communication problem with  "NepomukServer" , it probably crashed. 
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Message did not receive a reply (timeout by message bus)" "

The crash can be reproduced every time.

-- Backtrace:
Application: Server di Nepomuk (nepomukserver), signal: Segmentation fault
[KCrash Handler]
#6  0x00007f85818436ca in XInternAtom () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007f857c511dfd in DBusConnection::getAccessibilityBusAddress() const () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#8  0x00007f857c511eb6 in DBusConnection::connectDBus() () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#9  0x00007f857c51227c in DBusConnection::DBusConnection() () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#10 0x00007f857c4f60ff in QSpiAccessibleBridge::QSpiAccessibleBridge() () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#11 0x00007f857c511ae7 in QSpiAccessibleBridgePlugin::create(QString const&) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#12 0x00007f858297c018 in QAccessible::initialize () at accessible/qaccessible_unix.cpp:76
#13 0x00007f858297c145 in QAccessible::setRootObject (o=0x7fffbab15a90) at accessible/qaccessible_unix.cpp:118
#14 0x00007f8582474383 in QApplication::exec () at kernel/qapplication.cpp:3758
#15 0x00007f8584552989 in kdemain (argc=1, argv=<optimized out>) at ../../../nepomuk/server/main.cpp:114
#16 0x00007f85841c630d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffbab15cd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbab15cc8) at libc-start.c:226
#17 0x0000000000400671 in _start ()

Possible duplicates by query: bug 289405, bug 288661, bug 288656, bug 288250, bug 287485.

Reported using DrKonqi