Bug 325820

Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.8.0-26-generic i686
Distribution: Linux Mint 15 Olivia

-- Information about the crash:
- What I was doing when the application crashed:  Added a panel to the top of the screen, immediately removed the same panel. Crash bug report poped up, desktop window reset.....blinked;update window popped up.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1178740 (LWP 1776))]

Thread 6 (Thread 0xae7c1b40 (LWP 1778)):
#0  0xb77b2424 in __kernel_vsyscall ()
#1  0xb203284b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb766bd7c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb302e0ad in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb302e0df in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb202ed78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb765e3de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 5 (Thread 0xa8414b40 (LWP 1779)):
#0  0xb77b2424 in __kernel_vsyscall ()
#1  0xb76718e2 in clock_gettime () from /lib/i386-linux-gnu/libc.so.6
#2  0xb5f740d5 in do_gettime (frac=0xa8413f60, sec=0xa8413f58) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0xb605b80e in QTimerInfoList::updateCurrentTime (this=this@entry=0xa7b02074) at kernel/qeventdispatcher_unix.cpp:354
#5  0xb605bb9a in QTimerInfoList::timerWait (this=0xa7b02074, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0xb605a373 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa841408c) at kernel/qeventdispatcher_glib.cpp:136
#7  0xb605a40d in timerSourcePrepare (source=0xa7b02040, timeout=0xa841408c) at kernel/qeventdispatcher_glib.cpp:169
#8  0xb1f1ed21 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb1f1f5cf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb1f1f831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb605ac3f in QEventDispatcherGlib::processEvents (this=0xa7b00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0xb60273ec in QEventLoop::processEvents (this=this@entry=0xa8414228, flags=...) at kernel/qeventloop.cpp:149
#13 0xb60276e1 in QEventLoop::exec (this=this@entry=0xa8414228, flags=...) at kernel/qeventloop.cpp:204
#14 0xb5f12fec in QThread::exec (this=this@entry=0x868de28) at thread/qthread.cpp:542
#15 0xb6006f2d in QInotifyFileSystemWatcherEngine::run (this=0x868de28) at io/qfilesystemwatcher_inotify.cpp:256
#16 0xb5f15b18 in QThreadPrivate::start (arg=0x868de28) at thread/qthread_unix.cpp:338
#17 0xb202ed78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#18 0xb765e3de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xa6735b40 (LWP 1781)):
#0  0xb77b2424 in __kernel_vsyscall ()
#1  0xb764cc9b in read () from /lib/i386-linux-gnu/libc.so.6
#2  0xb1f61d4e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1f1f1e3 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1f1f662 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb1f1fc2b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xa734ebca in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#7  0xb1f44fc3 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb202ed78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0xb765e3de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa55feb40 (LWP 1784)):
#0  0xb2030cef in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb766bf84 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb1f62d30 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1f1f121 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1f1f662 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb1f1f831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb605ac3f in QEventDispatcherGlib::processEvents (this=0xa5e040c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb60273ec in QEventLoop::processEvents (this=this@entry=0xa55fe228, flags=...) at kernel/qeventloop.cpp:149
#8  0xb60276e1 in QEventLoop::exec (this=this@entry=0xa55fe228, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5f12fec in QThread::exec (this=this@entry=0x8979bc8) at thread/qthread.cpp:542
#10 0xb6006f2d in QInotifyFileSystemWatcherEngine::run (this=0x8979bc8) at io/qfilesystemwatcher_inotify.cpp:256
#11 0xb5f15b18 in QThreadPrivate::start (arg=0x8979bc8) at thread/qthread_unix.cpp:338
#12 0xb202ed78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb765e3de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa3866b40 (LWP 1788)):
#0  0xb77b2424 in __kernel_vsyscall ()
#1  0xb764edcb in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb1f2e2db in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1f1f6d0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1f1f831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb605ac3f in QEventDispatcherGlib::processEvents (this=0xa7108910, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb60273ec in QEventLoop::processEvents (this=this@entry=0xa3866238, flags=...) at kernel/qeventloop.cpp:149
#7  0xb60276e1 in QEventLoop::exec (this=this@entry=0xa3866238, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5f12fec in QThread::exec (this=0x8e2b590) at thread/qthread.cpp:542
#9  0xa3b5d402 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#10 0xb5f15b18 in QThreadPrivate::start (arg=0x8e2b590) at thread/qthread_unix.cpp:338
#11 0xb202ed78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb765e3de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1178740 (LWP 1776)):
[KCrash Handler]
#7  0xb6bf81be in QDeclarativeItem::~QDeclarativeItem (this=0x9dab288, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0xb6bb7cd4 in ~QDeclarativeElement (this=0x9dab288, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x9dab288, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#10 0xb603c873 in qDeleteInEventHandler (o=o@entry=0x9dab288) at kernel/qobject.cpp:4269
#11 0xb60444b0 in QObject::event (this=this@entry=0x9dab288, e=e@entry=0x9d07ca0) at kernel/qobject.cpp:1175
#12 0xb6bfb494 in QDeclarativeItem::event (this=0x9dab288, ev=0x9d07ca0) at graphicsitems/qdeclarativeitem.cpp:3748
#13 0xb5516c7c in QApplicationPrivate::notify_helper (this=0x8228d00, receiver=0x9dab288, e=0x9d07ca0) at kernel/qapplication.cpp:4567
#14 0xb5519b94 in QApplication::notify (this=0x9d07ca0, receiver=0x9dab288, e=0x9d07ca0) at kernel/qapplication.cpp:3949
#15 0xb66c2491 in KApplication::notify (this=0x821b020, receiver=0x9dab288, event=0x9d07ca0) at ../../kdeui/kernel/kapplication.cpp:311
#16 0xb602890e in QCoreApplication::notifyInternal (this=0x821b020, receiver=0x9dab288, event=0x9d07ca0) at kernel/qcoreapplication.cpp:946
#17 0xb602c721 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x81c9130) at kernel/qcoreapplication.cpp:1570
#19 0xb602ca8c in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#20 0xb605aaa4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#21 postEventSourceDispatch (s=0x8229280) at kernel/qeventdispatcher_glib.cpp:279
#22 0xb1f1f3b3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb1f1f750 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb1f1f831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb605ac21 in QEventDispatcherGlib::processEvents (this=this@entry=0x81c9ea8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#26 0xb55cda0a in QGuiEventDispatcherGlib::processEvents (this=0x81c9ea8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0xb60273ec in QEventLoop::processEvents (this=this@entry=0xbfd420b8, flags=...) at kernel/qeventloop.cpp:149
#28 0xb60276e1 in QEventLoop::exec (this=this@entry=0xbfd420b8, flags=...) at kernel/qeventloop.cpp:204
#29 0xb602d3fa in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#30 0xb5514fc4 in QApplication::exec () at kernel/qapplication.cpp:3828
#31 0xb776be32 in kdemain (argc=1, argv=0xbfd42274) at ../../../../plasma/desktop/shell/main.cpp:126
#32 0x0804855b in main (argc=1, argv=0xbfd42274) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 300393.

Possible duplicates by query: bug 325456, bug 324687, bug 324431, bug 324286, bug 323776.

Reported using DrKonqi