policy-kit-1 KDE crash on shutdown/logout

[Robert Simmons]

Binary package hint: polkit-kde-1

This is a crash that is difficult to reproduce, but happens periodically.

I am using Kubuntu 11.04 and KDE 4.6.4 and the version of polkit-kde-1 is 0.99.0-0ubuntu3

Sometimes when I shutdown or logout, policy kit crashes. It is not clear what causes it, because I am doing something different before shutdown/logout each time. However, there are many, many people who have reported the same crash. For more in-depth info and reams of backtrace, see KDE bug 258916.

Here is the most recent backtrace:

Application: PolicyKit1-KDE (polkit-kde-authentication-agent-1), signal: Segmentation fault
[Current thread is 1 (Thread 0xb788caf0 (LWP 1770))]

Thread 4 (Thread 0xb58afb70 (LWP 1792)):
#0 __pthread_mutex_lock (mutex=0x984bcdc) at pthread_mutex_lock.c:125
#1 0x00764616 in pthread_mutex_lock (mutex=0x984bcdc) at forward.c:182
#2 0x06c4933d in g_main_context_query () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3 0x06c49e8c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4 0x06c4a92b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5 0x01f8b304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6 0x06c732df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7 0x01a9de99 in start_thread (arg=0xb58afb70) at pthread_create.c:304
#8 0x0075673e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xb4f08b70 (LWP 4667)):
#0 0x00ba5416 in __kernel_vsyscall ()
#1 0x01aa50b9 in __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:142
#2 0x01aa054b in _L_lock_791 () from /lib/i386-linux-gnu/libpthread.so.0
#3 0x01aa0371 in __pthread_mutex_lock (mutex=0x984bcdc) at pthread_mutex_lock.c:61
#4 0x00764616 in pthread_mutex_lock (mutex=0x984bcdc) at forward.c:182
#5 0x06c4b851 in g_main_context_wakeup () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6 0x06c4b9e1 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7 0x06c732df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8 0x01a9de99 in start_thread (arg=0xb4f08b70) at pthread_create.c:304
#9 0x0075673e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xb38aab70 (LWP 4668)):
#0 0x00ba5416 in __kernel_vsyscall ()
#1 0x00747f76 in __poll (fds=0x9b6dec8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2 0x06c5a84b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3 0x06c4a1af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4 0x06c4a524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5 0x00d28577 in QEventDispatcherGlib::processEvents (this=0x9891748, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6 0x00cfa289 in QEventLoop::processEvents (this=0xb38aa240, flags=...) at kernel/qeventloop.cpp:149
#7 0x00cfa522 in QEventLoop::exec (this=0xb38aa240, flags=...) at kernel/qeventloop.cpp:201
#8 0x00c042a0 in QThread::exec (this=0x9b7caf8) at thread/qthread.cpp:492
#9 0x00cdbfdb in QInotifyFileSystemWatcherEngine::run (this=0x9b7caf8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00c06da2 in QThreadPrivate::start (arg=0x9b7caf8) at thread/qthread_unix.cpp:320
#11 0x01a9de99 in start_thread (arg=0xb38aab70) at pthread_create.c:304
#12 0x0075673e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb788caf0 (LWP 1770)):
[KCrash Handler]
#7 0x06de7998 in g_type_check_instance_is_a () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#8 0x06dc27fc in g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#9 0x00a9aa4f in ?? () from /usr/lib/libpolkit-agent-1.so.0
#10 0x06dc298c in g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#11 0x0067cbb0 in PolkitQt1::Agent::Session::Private::~Private() () from /usr/lib/libpolkit-qt-agent-1.so.1
#12 0x0067cbf4 in PolkitQt1::Agent::Session::~Session() () from /usr/lib/libpolkit-qt-agent-1.so.1
#13 0x0067cc52 in PolkitQt1::Agent::Session::~Session() () from /usr/lib/libpolkit-qt-agent-1.so.1
#14 0x00d0dbc5 in qDeleteInEventHandler (o=0x9ca5280) at kernel/qobject.cpp:3995
#15 0x00d103e8 in QObject::event (this=0x9ca5280, e=0x9bd5780) at kernel/qobject.cpp:1209
#16 0x00f96d24 in QApplicationPrivate::notify_helper (this=0x9787550, receiver=0x9ca5280, e=0x9bd5780) at kernel/qapplication.cpp:4462
#17 0x00f9b8ce in QApplication::notify (this=0xbfcc7b8c, receiver=0x9ca5280, e=0x9bd5780) at kernel/qapplication.cpp:3862
#18 0x002f236a in KApplication::notify (this=0xbfcc7b8c, receiver=0x9ca5280, event=0x9bd5780) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x00cfb0bb in QCoreApplication::notifyInternal (this=0xbfcc7b8c, receiver=0x9ca5280, event=0x9bd5780) at kernel/qcoreapplication.cpp:731
#20 0x00cfec79 in sendEvent (receiver=0x0, event_type=52, data=0x974e6d8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x974e6d8) at kernel/qcoreapplication.cpp:1372
#22 0x00cfee0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1265
#23 0x00cfef16 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1015
#24 0x00f948e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#25 0x08050951 in _start ()