Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-15-generic x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
Fresh Kubuntu install, I've installed one new widget (nvidia bar) and when I try to donload new widgets desktop crashes

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f614e64b7c0 (LWP 2510))]

Thread 4 (Thread 0x7f612dae3700 (LWP 2511)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f61472df06b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f61472df0a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6141996f6e in start_thread (arg=0x7f612dae3700) at pthread_create.c:311
#4  0x00007f614df2c9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f609ebff700 (LWP 2512)):
#0  0x00007fff5cf159cb in clock_gettime ()
#1  0x00007f614df4196d in clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f614aa20757 in do_gettime (frac=0x7f609ebfeb00, sec=0x7f609ebfeaf8) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f614aaf9fe5 in updateCurrentTime (this=0x7f6098002860) at kernel/qeventdispatcher_unix.cpp:354
#5  QTimerInfoList::timerWait (this=0x7f6098002860, tm=...) at kernel/qeventdispatcher_unix.cpp:461
#6  0x00007f614aaf882c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f609ebfebb4) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f614aaf88d5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f614128bd4d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f614128c5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f614128c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f614aaf8a76 in QEventDispatcherGlib::processEvents (this=0x7f60980008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f614aaca5ef in QEventLoop::processEvents (this=this@entry=0x7f609ebfed70, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f614aaca8e5 in QEventLoop::exec (this=this@entry=0x7f609ebfed70, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f614a9c988f in QThread::exec (this=this@entry=0x1ec6fe0) at thread/qthread.cpp:542
#15 0x00007f614aaabd13 in QInotifyFileSystemWatcherEngine::run (this=0x1ec6fe0) at io/qfilesystemwatcher_inotify.cpp:265
#16 0x00007f614a9cbf2f in QThreadPrivate::start (arg=0x1ec6fe0) at thread/qthread_unix.cpp:338
#17 0x00007f6141996f6e in start_thread (arg=0x7f609ebff700) at pthread_create.c:311
#18 0x00007f614df2c9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f6097327700 (LWP 2513)):
#0  0x00007f614df1ff7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f614128c6a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f614128c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f614aaf8a76 in QEventDispatcherGlib::processEvents (this=0x7f60900008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f614aaca5ef in QEventLoop::processEvents (this=this@entry=0x7f6097326d70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f614aaca8e5 in QEventLoop::exec (this=this@entry=0x7f6097326d70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f614a9c988f in QThread::exec (this=this@entry=0x2b45480) at thread/qthread.cpp:542
#7  0x00007f614aaabd13 in QInotifyFileSystemWatcherEngine::run (this=0x2b45480) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f614a9cbf2f in QThreadPrivate::start (arg=0x2b45480) at thread/qthread_unix.cpp:338
#9  0x00007f6141996f6e in start_thread (arg=0x7f6097327700) at pthread_create.c:311
#10 0x00007f614df2c9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f614e64b7c0 (LWP 2510)):
[KCrash Handler]
#6  0x00007f614c6c7334 in QDeclarativeItem::~QDeclarativeItem (this=0x4aaca60, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f612cbabaa1 in ~QDeclarativeElement (this=0x4aaca60, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x4aaca60, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f614aae3e08 in QObject::event (this=0x4aaca60, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f6149e68dfc in QApplicationPrivate::notify_helper (this=this@entry=0x1dfc9d0, receiver=receiver@entry=0x4aaca60, e=e@entry=0x45ea400) at kernel/qapplication.cpp:4567
#11 0x00007f6149e6f470 in QApplication::notify (this=this@entry=0x1da4ee0, receiver=receiver@entry=0x4aaca60, e=e@entry=0x45ea400) at kernel/qapplication.cpp:4353
#12 0x00007f614b78fa6a in KApplication::notify (this=0x1da4ee0, receiver=0x4aaca60, event=0x45ea400) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f614aacb8bd in QCoreApplication::notifyInternal (this=0x1da4ee0, receiver=receiver@entry=0x4aaca60, event=event@entry=0x45ea400) at kernel/qcoreapplication.cpp:946
#14 0x00007f614aacee1f in sendEvent (event=0x45ea400, receiver=0x4aaca60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1ce71f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f614aacf2c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f614aaf9073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x1dfd580) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f614128c3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f614128c708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f614128c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f614aaf8a55 in QEventDispatcherGlib::processEvents (this=0x1df6c20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f6149f0a9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f614aaca5ef in QEventLoop::processEvents (this=this@entry=0x7fff5ced3a10, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f614aaca8e5 in QEventLoop::exec (this=this@entry=0x7fff5ced3a10, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f614aacfe5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#27 0x00007f6149e6734c in QApplication::exec () at kernel/qapplication.cpp:3828
#28 0x00007f614e23627c in kdemain (argc=1, argv=0x7fff5ced3c68) at ../../../../plasma/desktop/shell/main.cpp:126
#29 0x00007f614de53de5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff5ced3c68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5ced3c58) at libc-start.c:260
#30 0x000000000040070e in _start ()

Possible duplicates by query: bug 330436, bug 330409, bug 330377, bug 330175, bug 329915.

Reported using DrKonqi