Application: polkit-kde-authentication-agent-1 (0.99.0)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I just finished working and closed my applications. Firefox, VUE, and Thunderbird. I was (am) connected to internet with an UMTS-Stick and an update from KDE was run during my last session. I also ran a remote desktop session to a Windows machine. 
As far as I can say, all applications terminated properly before I pressed shutdown.
This problem happens from time to time, but I cannot repeat it. (And frankly I did not try to repeat it, as it is a crash on shutdown, I'm not wanting to reboot 20 times and try to figure out how to reproduce the crash...)

The crash can be reproduced some of the time.

-- Backtrace:
Application: PolicyKit1-KDE (polkit-kde-authentication-agent-1), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77af760 (LWP 1707))]

Thread 4 (Thread 0xb68b0b70 (LWP 1753)):
#0  0x00fc5416 in __kernel_vsyscall ()
#1  0x00d5e40e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0573334b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x05724896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x05724f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x01bbbcea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x0574b5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x0789cd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x00d6d0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xb5f56b70 (LWP 1937)):
#0  0x00fc5416 in __kernel_vsyscall ()
#1  0x00d36586 in nanosleep () from /lib/i386-linux-gnu/libc.so.6
#2  0x0574eabe in g_usleep () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0572078e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0574b5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0789cd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x00d6d0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xb4857b70 (LWP 1938)):
#0  0x0789eddb in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00d7af14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0x05722eda in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x0572456d in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x05724c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x00b8eb37 in QEventDispatcherGlib::processEvents (this=0x85a8fe0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00b5f1dd in QEventLoop::processEvents (this=0xb4857260, flags=...) at kernel/qeventloop.cpp:149
#7  0x00b5f421 in QEventLoop::exec (this=0xb4857260, flags=...) at kernel/qeventloop.cpp:201
#8  0x00a6290b in QThread::exec (this=0x85d9df0) at thread/qthread.cpp:498
#9  0x00b3fe2d in QInotifyFileSystemWatcherEngine::run (this=0x85d9df0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00a657b3 in QThreadPrivate::start (arg=0x85d9df0) at thread/qthread_unix.cpp:331
#11 0x0789cd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x00d6d0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb77af760 (LWP 1707)):
[KCrash Handler]
#7  0x02c9bba0 in g_type_check_instance_is_a () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#8  0x02c79525 in g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#9  0x002cda22 in ?? () from /usr/lib/libpolkit-agent-1.so.0
#10 0x02c7968a in g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#11 0x00112e9e in PolkitQt1::Agent::Session::Private::~Private() () from /usr/lib/libpolkit-qt-agent-1.so.1
#12 0x00112ee4 in PolkitQt1::Agent::Session::~Session() () from /usr/lib/libpolkit-qt-agent-1.so.1
#13 0x00112f42 in PolkitQt1::Agent::Session::~Session() () from /usr/lib/libpolkit-qt-agent-1.so.1
#14 0x00b735f3 in qDeleteInEventHandler (o=0x85ccd00) at kernel/qobject.cpp:3986
#15 0x00b78b80 in QObject::event (this=0x85ccd00, e=0x84165c0) at kernel/qobject.cpp:1200
#16 0x0111dd54 in notify_helper (e=0x84165c0, receiver=0x85ccd00, this=0x83357f0) at kernel/qapplication.cpp:4486
#17 QApplicationPrivate::notify_helper (this=0x83357f0, receiver=0x85ccd00, e=0x84165c0) at kernel/qapplication.cpp:4458
#18 0x01123103 in QApplication::notify (this=0x84165c0, receiver=0x85ccd00, e=0x84165c0) at kernel/qapplication.cpp:3886
#19 0x004df681 in KApplication::notify (this=0xbfca2abc, receiver=0x85ccd00, event=0x84165c0) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00b6019e in QCoreApplication::notifyInternal (this=0xbfca2abc, receiver=0x85ccd00, event=0x84165c0) at kernel/qcoreapplication.cpp:787
#21 0x00b63f93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x8312ca8) at kernel/qcoreapplication.cpp:1428
#23 0x00b640ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1321
#24 0x00b641d3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#25 0x0111b8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#26 0x0804e6b5 in ?? ()
#27 0x00cb4113 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#28 0x0804e711 in _start ()

This bug may be a duplicate of or related to bug 258916.

Possible duplicates by query: bug 287790, bug 286214, bug 285946, bug 285335, bug 285318.

Reported using DrKonqi