[Bug 251776] New: PolicyKit segfaults at logout

[Thomas Belvin]

https://bugs.kde.org/show_bug.cgi?id=251776

           Summary: PolicyKit segfaults at logout
           Product: kde
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: thomasbelvin at gmail.com


Application: polkit-kde-authentication-agent-1 (0.1)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35.4-28.fc14.i686 i686
Distribution: "Fedora release 14 (Laughlin)"

-- Information about the crash:
- What I was doing when the application crashed:
Logout for shutdown from Fedora 14 with updates-testing. Segfault crash notice
shows as screen turns black for shutdown.

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 0xb7801780 (LWP 1757))]

Thread 2 (Thread 0xb581eb70 (LWP 1761)):
#0  0x00a4f416 in __kernel_vsyscall ()
#1  0x009be662 in __lll_lock_wait () at
../nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S:142
#2  0x009b94cb in _L_lock_791 () from /lib/libpthread.so.0
#3  0x009b92f1 in __pthread_mutex_lock (mutex=0xcc1784) at
pthread_mutex_lock.c:61
#4  0x00bd77dc in g_datalist_id_set_data_full (datalist=0xb4f02ed0, key_id=53,
data=0x0, destroy_func=0) at gdataset.c:588
#5  0x00d05f88 in g_object_real_dispose (object=0xb4f02ec8) at gobject.c:769
#6  0x00d06263 in g_object_unref (_object=0xb4f02ec8) at gobject.c:2543
#7  0x0069634f in read_with_control_data_free (data=0xb4f03ee8) at
gdbusprivate.c:122
#8  0x00bf1d55 in g_source_callback_unref (cb_data=0xb4f03400) at gmain.c:1152
#9  0x00bf2288 in g_source_destroy_internal (source=0xb4f04800,
context=0x8a088a8, have_lock=1) at gmain.c:931
#10 0x00bf59b5 in g_main_dispatch (context=0x8a088a8) at gmain.c:2144
#11 g_main_context_dispatch (context=0x8a088a8) at gmain.c:2672
#12 0x00bf6148 in g_main_context_iterate (context=0x8a088a8, block=1,
dispatch=1, self=<value optimized out>) at gmain.c:2750
#13 0x00bf681b in g_main_loop_run (loop=0x8a09de8) at gmain.c:2958
#14 0x00696525 in shared_thread_func (data=0x0) at gdbusprivate.c:248
#15 0x00c1f640 in g_thread_create_proxy (data=0x89f1920) at gthread.c:1897
#16 0x009b6f19 in start_thread (arg=0xb581eb70) at pthread_create.c:301
#17 0x0090cebe in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xb7801780 (LWP 1757)):
[KCrash Handler]
#7  0x00bd7958 in g_data_set_internal (datalist=0x8952438, key_id=53, data=0x0,
destroy_func=0) at gdataset.c:319
#8  g_datalist_id_set_data_full (datalist=0x8952438, key_id=53, data=0x0,
destroy_func=0) at gdataset.c:592
#9  0x00d062d5 in g_object_unref (_object=0x8952430) at gobject.c:2567
#10 0x03b124f2 in PolkitQt1::Agent::Listener::~Listener (this=<value optimized
out>, __in_chrg=<value optimized out>) at
/usr/src/debug/polkit-qt-1-0.95.1/agent/polkitqt1-agent-listener.cpp:69
#11 0x0804e973 in PolicyKitListener::~PolicyKitListener (this=0x89cf620,
__in_chrg=<value optimized out>) at
/usr/src/debug/polkit-kde-1-0.95.1/agent/policykitlistener.cpp:42
#12 0x03da54e8 in QObjectPrivate::deleteChildren (this=0x8950788) at
kernel/qobject.cpp:1949
#13 0x03da9dd2 in QObject::~QObject (this=0xbfb497b0, __in_chrg=<value
optimized out>) at kernel/qobject.cpp:945
#14 0x03d94553 in QCoreApplication::~QCoreApplication (this=0xbfb497b0,
__in_chrg=<value optimized out>) at kernel/qcoreapplication.cpp:616
#15 0x0447ad0e in QApplication::~QApplication (this=0xbfb497b0,
__in_chrg=<value optimized out>) at kernel/qapplication.cpp:1031
#16 0x0502539b in KApplication::~KApplication (this=0xbfb497b0,
__in_chrg=<value optimized out>) at
/usr/src/debug/kdelibs-4.5.1/kdeui/kernel/kapplication.cpp:891
#17 0x0502d239 in KUniqueApplication::~KUniqueApplication (this=0xbfb497b0,
__in_chrg=<value optimized out>) at
/usr/src/debug/kdelibs-4.5.1/kdeui/kernel/kuniqueapplication.cpp:350
#18 0x0804f028 in main (argc=) at
/usr/src/debug/polkit-kde-1-0.95.1/agent/main.cpp:41

Reported using DrKonqi

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