Application: polkit-kde-authentication-agent-1 (0.99.0)
KDE Platform Version: 4.7.00 (4.7.0) (Compiled from sources)
Qt Version: 4.7.3
Operating System: Linux 2.6.39-pf3 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
This crash sometimes happens when logging out of KDE. blabla

The crash can be reproduced some of the time.

-- Backtrace:
Application: PolicyKit1-KDE (polkit-kde-authentication-agent-1), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f05d3fda760 (LWP 4892))]

Thread 3 (Thread 0x7f05c4b16700 (LWP 4896)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
#1  0x00007f05cf61c541 in _L_lock_1006 () from /lib64/libpthread.so.0
#2  0x00007f05cf61c35a in __pthread_mutex_lock (mutex=0xd8f2b8) at pthread_mutex_lock.c:61
#3  0x00007f05ceea0492 in g_main_context_poll (n_fds=3, fds=0xdd9c70, timeout=-1, context=0xd8f2b0, priority=<optimized out>) at gmain.c:3400
#4  g_main_context_iterate (context=0xd8f2b0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3087
#5  0x00007f05ceea0dd2 in g_main_loop_run (loop=0xd8f290) at gmain.c:3300
#6  0x00007f05ce996484 in gdbus_shared_thread_func (data=<optimized out>) at gdbusprivate.c:276
#7  0x00007f05ceec76e6 in g_thread_create_proxy (data=0xd8f3a0) at gthread.c:1955
#8  0x00007f05cf619d4c in start_thread (arg=0x7f05c4b16700) at pthread_create.c:301
#9  0x00007f05d1523c6d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f05c3a39700 (LWP 20436)):
#0  0x00007f05d1530b40 in pthread_mutex_unlock (mutex=0xd8f2b8) at forward.c:184
#1  0x00007f05ceea1e80 in child_watch_helper_thread (data=<optimized out>) at gmain.c:4329
#2  0x00007f05ceec76e6 in g_thread_create_proxy (data=0xe68770) at gthread.c:1955
#3  0x00007f05cf619d4c in start_thread (arg=0x7f05c3a39700) at pthread_create.c:301
#4  0x00007f05d1523c6d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f05d3fda760 (LWP 4892)):
[KCrash Handler]
#6  g_type_check_instance_is_a (type_instance=0xf33580, iface_type=<optimized out>) at gtype.c:3952
#7  0x00007f05cec1a12b in g_object_unref (_object=0xf33580) at gobject.c:2668
#8  0x00007f05ce4c31ab in polkit_agent_session_get_property (object=0xdb0760, prop_id=14354272, value=0xdb0760, pspec=0x1) at polkitagentsession.c:170
#9  0x00007f05d3355b54 in PolkitQt1::Agent::Session::~Session (this=0xe89bc0, __in_chrg=<optimized out>) at /usr/src/debug/sys-auth/polkit-qt-0.99.0/polkit-qt-1-0.99.0/agent/polkitqt1-agent-session.cpp:77
#10 0x00007f05d3355b99 in PolkitQt1::Agent::Session::~Session (this=0xe6b740, __in_chrg=<optimized out>) at /usr/src/debug/sys-auth/polkit-qt-0.99.0/polkit-qt-1-0.99.0/agent/polkitqt1-agent-session.cpp:78
#11 0x00007f05d28d4168 in QObject::event (this=0xe6b740, e=<optimized out>) at kernel/qobject.cpp:1200
#12 0x00007f05d1ca8b74 in QApplicationPrivate::notify_helper (this=0xc6e150, receiver=0xe6b740, e=0xe89bc0) at kernel/qapplication.cpp:4462
#13 0x00007f05d1cad6fa in QApplication::notify (this=<optimized out>, receiver=0xe6b740, e=0xe89bc0) at kernel/qapplication.cpp:4341
#14 0x00007f05d39cf836 in KApplication::notify (this=0xf33580, receiver=0x14, event=0x69746e6568747540) at /usr/src/debug/kde-base/kdelibs-4.7.0-r1/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:289
#15 0x00007f05cf173e60 in ?? () from /usr/lib64/libglib-2.0.so.0
#16 0x0000000000000001 in ?? ()
#17 0x00007f05d1530b00 in ?? () at forward.c:178 from /lib64/libc.so.6
#18 0x0000000000c4aa01 in ?? ()
#19 0x00007fff4de2d9a0 in ?? ()
#20 0x0000000000c4a890 in ?? ()
#21 0x0000000000e6b740 in ?? ()
#22 0x00007fff4de2d8e0 in ?? ()
#23 0x0000000000e89bc0 in ?? ()
#24 0x00007f05d28bff5b in QCoreApplication::notifyInternal (this=0x7fff4de2d8e0, receiver=0xe6b740, event=0xe89bc0) at kernel/qcoreapplication.cpp:731
#25 0x00007f05d28c3714 in sendEvent (event=0xe89bc0, receiver=0xe6b740) at ../../src/corelib/kernel/qcoreapplication.h:215
#26 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0xc4a890) at kernel/qcoreapplication.cpp:1372
#27 0x00007f05d28c3a0f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1015
#28 0x000000000040b5ed in main (argc=1, argv=0x7fff4de2db28) at /usr/src/debug/sys-auth/polkit-kde-agent-0.99.0/polkit-kde-agent-1-0.99.0/main.cpp:44

Reported using DrKonqi