Bug 303945

Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.90 (4.8.90)
Qt Version: 4.8.2
Operating System: Linux 3.5.0-5-generic i686
Distribution: Ubuntu quantal (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
unlock widgets --> right-click on the desktop --> add widgets --> get new widgets --> download new plasma widgets --> crash

The crash can be reproduced some of the time.

-- 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 0xb1af0740 (LWP 2158))]

Thread 5 (Thread 0xad291b40 (LWP 2183)):
#0  0xb7799424 in __kernel_vsyscall ()
#1  0xb291696b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0xb76493dc in __pthread_cond_wait (cond=0xb3a4e670, mutex=0xb3a4e658) at forward.c:139
#3  0xb393c15d in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb393c18f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2912d4c in start_thread (arg=0xad291b40) at pthread_create.c:308
#6  0xb763bace in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0xa7072b40 (LWP 2211)):
#0  0xb5fc9563 in QThreadData::current () at thread/qthread_unix.cpp:203
#1  0xb610d52f in postEventSourcePrepare (s=0xa6700da8, timeout=0xa70720ac) at kernel/qeventdispatcher_glib.cpp:256
#2  0xb2808a3a in g_main_context_prepare (context=context@entry=0xa67004e0, priority=priority@entry=0xa7072118) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:2962
#3  0xb280910f in g_main_context_iterate (context=context@entry=0xa67004e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3246
#4  0xb2809371 in g_main_context_iteration (context=0xa67004e0, may_block=1) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3327
#5  0xb610dc7f in QEventDispatcherGlib::processEvents (this=0xa6700468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb60da45c in QEventLoop::processEvents (this=this@entry=0xa7072248, flags=...) at kernel/qeventloop.cpp:149
#7  0xb60da751 in QEventLoop::exec (this=0xa7072248, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5fc75cc in QThread::exec (this=0x88987a8) at thread/qthread.cpp:501
#9  0xb60b8c3d in QInotifyFileSystemWatcherEngine::run (this=0x88987a8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5fca970 in QThreadPrivate::start (arg=0x88987a8) at thread/qthread_unix.cpp:307
#11 0xb2912d4c in start_thread (arg=0xa7072b40) at pthread_create.c:308
#12 0xb763bace in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xa5ce9b40 (LWP 2213)):
#0  0xb2ae4dcd in __GI_clock_gettime (clock_id=1, tp=0xa5ce8f98) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb6028ec5 in do_gettime (frac=0xa5ce8f90, sec=0xa5ce8f88) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb610e64e in QTimerInfoList::updateCurrentTime (this=0xa6102074) at kernel/qeventdispatcher_unix.cpp:343
#4  0x7fffffff in ?? ()
#5  0xb610e9da in QTimerInfoList::timerWait (this=0xa6102074, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x7fffffff in ?? ()

Thread 2 (Thread 0xa3dffb40 (LWP 2215)):
#0  0xb7799424 in __kernel_vsyscall ()
#1  0xb762d380 in __GI___poll (fds=fds@entry=0xa3402298, nfds=nfds@entry=3, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb28179bb in g_poll (fds=0xa3402298, nfds=3, timeout=-1) at /build/buildd/glib2.0-2.33.6/./glib/gpoll.c:132
#3  0xb2809210 in g_main_context_poll (n_fds=3, fds=0xa3402298, timeout=<optimized out>, context=0xa3e08388, priority=<optimized out>) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3560
#4  g_main_context_iterate (context=0xa3e08388, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3261
#5  0xb28096eb in g_main_loop_run (loop=0xa3e08350) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3460
#6  0xa604911a in gdbus_shared_thread_func (user_data=0xa3e08370) at /build/buildd/glib2.0-2.33.6/./gio/gdbusprivate.c:277
#7  0xb282db33 in g_thread_proxy (data=0xa3e031b0) at /build/buildd/glib2.0-2.33.6/./glib/gthread.c:801
#8  0xb2912d4c in start_thread (arg=0xa3dffb40) at pthread_create.c:308
#9  0xb763bace in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb1af0740 (LWP 2158)):
[KCrash Handler]
#7  0x00690063 in ?? ()
#8  0xb6ca0521 in QDeclarativeItem::~QDeclarativeItem (this=0xae23850, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#9  0xa64c7570 in Plasma::FrameSvgItem::~FrameSvgItem (this=0xae23850, __in_chrg=<optimized out>) at ../../../../plasma/declarativeimports/core/framesvgitem.cpp:67
#10 0xa64b8fe0 in ~QDeclarativeElement (this=0xae23850, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#11 QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0xae23850, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#12 0xb60ef973 in qDeleteInEventHandler (o=o@entry=0xae23850) at kernel/qobject.cpp:4277
#13 0xb60f2100 in QObject::event (this=0xae23850, e=0xacd7ff0) at kernel/qobject.cpp:1176
#14 0xb6c9a9f4 in QDeclarativeItem::event (this=0xae23850, ev=0xacd7ff0) at graphicsitems/qdeclarativeitem.cpp:3746
#15 0xb55cc2cc in QApplicationPrivate::notify_helper (this=0x8429218, receiver=0xae23850, e=0xacd7ff0) at kernel/qapplication.cpp:4556
#16 0xb55d0cdf in QApplication::notify (this=0xacd7ff0, receiver=0xae23850, e=0xacd7ff0) at kernel/qapplication.cpp:3938
#17 0xb67697d1 in KApplication::notify (this=0x84248b8, receiver=0xae23850, event=0xacd7ff0) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb60db97e in QCoreApplication::notifyInternal (this=0x84248b8, receiver=0xae23850, event=0xacd7ff0) at kernel/qcoreapplication.cpp:915
#19 0xb60dfb6d in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x83ce130) at kernel/qcoreapplication.cpp:1539
#21 0xb60dfdfc in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#22 0xb610dae4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#23 postEventSourceDispatch (s=s@entry=0x8434790) at kernel/qeventdispatcher_glib.cpp:279
#24 0xb2808ef3 in g_main_dispatch (context=0x8429130) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:2691
#25 g_main_context_dispatch (context=context@entry=0x8429130) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3195
#26 0xb2809290 in g_main_context_iterate (context=context@entry=0x8429130, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3266
#27 0xb2809371 in g_main_context_iteration (context=0x8429130, may_block=1) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3327
#28 0xb610dc61 in QEventDispatcherGlib::processEvents (this=0x83ceeb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#29 0xb56828da in QGuiEventDispatcherGlib::processEvents (this=0x83ceeb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0xb60da45c in QEventLoop::processEvents (this=this@entry=0xbf7ff3e8, flags=...) at kernel/qeventloop.cpp:149
#31 0xb60da751 in QEventLoop::exec (this=0xbf7ff3e8, flags=...) at kernel/qeventloop.cpp:204
#32 0xb60dfeaa in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#33 0xb55c9ef4 in QApplication::exec () at kernel/qapplication.cpp:3817
#34 0xb7755f83 in kdemain (argc=1, argv=0xbf7ff5a4) at ../../../../plasma/desktop/shell/main.cpp:120
#35 0x0804855b in main (argc=1, argv=0xbf7ff5a4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 303112, bug 302931.

Reported using DrKonqi