Application: polkit-kde-authentication-agent-1 (0.99.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic-pae i686
Distribution: Ubuntu 11.04

-- Information about the crash:
I was attempting to kill processes scanimage & scanbuttond from the system activity window.  I was asked for a password, and a crash occurred when I entered mine.

-- Backtrace:
Application: PolicyKit1-KDE (polkit-kde-authentication-agent-1), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5852af0 (LWP 2617))]

Thread 4 (Thread 0xb2cf6b70 (LWP 2658)):
#0  0xb5ad6374 in __pthread_mutex_lock (mutex=0x86d70f4) at pthread_mutex_lock.c:62
#1  0xb626e616 in pthread_mutex_lock (mutex=0x86d70f4) at forward.c:182
#2  0xb5cc4e3f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5cc5e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb5cc692b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5bf1304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb5cef2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb5ad3e99 in start_thread (arg=0xb2cf6b70) at pthread_create.c:304
#8  0xb626073e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xb11f9b70 (LWP 3940)):
#0  0xb77c0832 in ?? () from /lib/ld-linux.so.2
#1  0xb6251f76 in __poll (fds=0x8a5b9c8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb5cd684b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5cc61af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb5cc6524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb6fdd577 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0xb6faf289 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#7  0xb6faf522 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#8  0xb6eb92a0 in QThread::exec() () from /usr/lib/libQtCore.so.4
#9  0xb6f90fdb in ?? () from /usr/lib/libQtCore.so.4
#10 0xb6ebbda2 in ?? () from /usr/lib/libQtCore.so.4
#11 0xb5ad3e99 in start_thread (arg=0xb11f9b70) at pthread_create.c:304
#12 0xb626073e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xb09f8b70 (LWP 3942)):
#0  0xb77c0832 in ?? () from /lib/ld-linux.so.2
#1  0xb5adb0b9 in __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:142
#2  0xb5ad654b in _L_lock_791 () from /lib/i386-linux-gnu/libpthread.so.0
#3  0xb5ad6371 in __pthread_mutex_lock (mutex=0x86d70f4) at pthread_mutex_lock.c:61
#4  0xb626e616 in pthread_mutex_lock (mutex=0x86d70f4) at forward.c:182
#5  0xb5cc7851 in g_main_context_wakeup () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb5cc79e1 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb5cef2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb5ad3e99 in start_thread (arg=0xb09f8b70) at pthread_create.c:304
#9  0xb626073e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb5852af0 (LWP 2617)):
[KCrash Handler]
#7  0xb5c70998 in g_type_check_instance_is_a () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#8  0xb5c4b7fc in g_object_unref () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
#9  0xb73f1d5b in PolkitQt1::Identity::~Identity() () from /usr/lib/libpolkit-qt-core-1.so.1
#10 0x0804ec89 in node_destruct (data=0x865d890, this=<value optimized out>) at /usr/include/qt4/QtCore/qlist.h:418
#11 QList<PolkitQt1::Identity>::free (data=0x865d890, this=<value optimized out>) at /usr/include/qt4/QtCore/qlist.h:742
#12 0x080500eb in operator= (this=0x8706f80, actionId=..., message=..., iconName=..., details=..., cookie=..., identities=..., result=0x874e948) at /usr/include/qt4/QtCore/qlist.h:430
#13 PolicyKitListener::initiateAuthentication (this=0x8706f80, actionId=..., message=..., iconName=..., details=..., cookie=..., identities=..., result=0x874e948) at /build/buildd/polkit-kde-1-0.99.0/policykitlistener.cpp:80
#14 0xb73dd37c in PolkitQt1::Agent::ListenerAdapter::polkit_qt_listener_initiate_authentication(_PolkitAgentListener*, char const*, char const*, char const*, _PolkitDetails*, char const*, _GList*, _GCancellable*, _GSimpleAsyncResult*) () from /usr/lib/libpolkit-qt-agent-1.so.1
#15 0xb73de552 in ?? () from /usr/lib/libpolkit-qt-agent-1.so.1
#16 0xb5b34a85 in polkit_agent_listener_initiate_authentication () from /usr/lib/libpolkit-agent-1.so.0
#17 0xb5b34ce7 in ?? () from /usr/lib/libpolkit-agent-1.so.0
#18 0xb5be15b2 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#19 0xb5cc1311 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#20 0xb5cc5aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#21 0xb5cc6270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb5cc6524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb6fdd53c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#24 0xb65be775 in ?? () from /usr/lib/libQtGui.so.4
#25 0xb6faf289 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#26 0xb6faf522 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#27 0xb6fb3ecc in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#28 0xb65088e7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#29 0x08050951 in main (argc=7077888, argv=0x11) at /build/buildd/polkit-kde-1-0.99.0/main.cpp:44

This bug may be a duplicate of or related to bug 274204.

Possible duplicates by query: bug 274204.

Reported using DrKonqi