Application: krdc (4.4.2 (KDE 4.4.2))
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
it crash upon disconnecting from a short MAC vnc session, which no other intensive application is running on Ubuntu 10.4 with latest patch from yesterday (8.19.2010).

KRDC was uninstall and reinstall 3 hours ago due to another issue that cause it to hang and consume 100% CPU cycle when trying to connect to another MAC OS X but got refused before any login (observable by user) was initiated.  Kill process was needed to kill it off.


 -- Backtrace:
Application: KRDC (krdc), signal: Segmentation fault
__lll_lock_wait_private ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
[Current thread is 1 (Thread 0x7f4cebcc1760 (LWP 2932))]

Thread 2 (Thread 0x7f4cd3226710 (LWP 2933)):
[KCrash Handler]
#5  malloc_consolidate (av=0x7f4ce895ee40) at malloc.c:5134
#6  0x00007f4ce865a460 in _int_free (av=0x7f4ce895ee40, p=0x280fdf0) at malloc.c:5015
#7  0x00007f4ce865de53 in *__GI___libc_free (mem=<value optimized out>) at malloc.c:3738
#8  0x00007f4cd6d40433 in VncClientThread::run (this=0x26c6a40) at ../../../krdc/vnc/vncclientthread.cpp:308
#9  0x00007f4ce8cf0775 in QThreadPrivate::start (arg=0x26c6a40) at thread/qthread_unix.cpp:248
#10 0x00007f4ce6b549ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007f4ce86c66fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f4cebcc1760 (LWP 2932)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f4ce865f3ac in _L_lock_12430 () from /lib/libc.so.6
#2  0x00007f4ce865de48 in *__GI___libc_free (mem=0x7f4ce895ee40) at malloc.c:3736
#3  0x00007f4ce97b63f2 in QHash<QWidget*, QHashDummyValue>::deleteNode (this=0x26c69e0, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qhash.h:507
#4  QHash<QWidget*, QHashDummyValue>::remove (this=0x26c69e0, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qhash.h:790
#5  QSet<QWidget*>::remove (this=0x26c69e0, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qset.h:84
#6  ~QWidget (this=0x26c69e0, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1481
#7  0x00007f4cd6d43347 in ~VncView (this=0x26c69e0, __in_chrg=<value optimized out>) at ../../../krdc/vnc/vncview.cpp:97
#8  0x00007f4ce8df3a5c in QObjectPrivate::deleteChildren (this=0x28025b0) at kernel/qobject.cpp:1986
#9  0x00007f4ce97b57e5 in ~QWidget (this=0x28099c0, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#10 0x00007f4ce8df3a5c in QObjectPrivate::deleteChildren (this=0x2802300) at kernel/qobject.cpp:1986
#11 0x00007f4ce97b62d5 in ~QWidget (this=0x27a0870, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#12 0x00000000004268b8 in ~RemoteViewScrollArea (this=0x7f4ce895ee40, __in_chrg=<value optimized out>) at ../../krdc/mainwindow.h:173
#13 0x00007f4ce8df4d6d in QObject::event (this=0x27a0870, e=0x2576130) at kernel/qobject.cpp:1231
#14 0x00007f4ce97aebdf in QWidget::event (this=0x27a0870, event=0x2576130) at kernel/qwidget.cpp:8455
#15 0x00007f4ce9b564e6 in QFrame::event (this=0x27a0870, e=0x2576130) at widgets/qframe.cpp:557
#16 0x00007f4ce9be18ab in QAbstractScrollArea::event (this=0x27a0870, e=0x2576130) at widgets/qabstractscrollarea.cpp:989
#17 0x00007f4ce975922c in QApplicationPrivate::notify_helper (this=0x20dbf10, receiver=0x27a0870, e=0x2576130) at kernel/qapplication.cpp:4300
#18 0x00007f4ce975f6fb in QApplication::notify (this=0x7fff154e74d0, receiver=0x27a0870, e=0x2576130) at kernel/qapplication.cpp:4183
#19 0x00007f4cea464526 in KApplication::notify (this=0x7fff154e74d0, receiver=0x27a0870, event=0x2576130) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00007f4ce8de506c in QCoreApplication::notifyInternal (this=0x7fff154e74d0, receiver=0x27a0870, event=0x2576130) at kernel/qcoreapplication.cpp:704
#21 0x00007f4ce8de77e7 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x20c4860) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x20c4860) at kernel/qcoreapplication.cpp:1345
#23 0x00007f4ce8e0e9d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#24 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#25 0x00007f4ce4aad8c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#26 0x00007f4ce4ab1748 in ?? () from /lib/libglib-2.0.so.0
#27 0x00007f4ce4ab18fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#28 0x00007f4ce8e0e513 in QEventDispatcherGlib::processEvents (this=0x20c3fb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#29 0x00007f4ce980946e in QGuiEventDispatcherGlib::processEvents (this=0x7f4ce895ee40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007f4ce8de3992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#31 0x00007f4ce8de3d6c in QEventLoop::exec (this=0x7fff154e7410, flags=) at kernel/qeventloop.cpp:201
#32 0x00007f4ce8de7aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#33 0x00000000004277cb in main (argc=<value optimized out>, argv=<value optimized out>) at ../../krdc/main.cpp:103

Possible duplicates by query: bug 218378.

Reported using DrKonqi