Bug 312284

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-21-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
right click and the panel and choose Panel Options Add Widgets...
Then I clicked on Activities and the crash happened.

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/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f176276e780 (LWP 8033))]

Thread 4 (Thread 0x7f1757f55700 (LWP 8034)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f176f7fecd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f176f7fed09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f1769e97e9a in start_thread (arg=0x7f1757f55700) at pthread_create.c:308
#4  0x00007f1775b04cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f174ff8f700 (LWP 8035)):
#0  0x00007fff06bff827 in clock_gettime ()
#1  0x00007f176b68615d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f17726d29c4 in do_gettime (frac=0x7f174ff8eb28, sec=0x7f174ff8eb20) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f17727a841d in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f1748002860) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f17727a8763 in QTimerInfoList::timerWait (this=0x7f1748002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007f17727a72cc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f174ff8ec14) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f17727a7375 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f1769798618 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f1769798cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f1769798ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f17727a7c16 in QEventDispatcherGlib::processEvents (this=0x7f17480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007f17727782bf in QEventLoop::processEvents (this=this@entry=0x7f174ff8edd0, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f1772778548 in QEventLoop::exec (this=0x7f174ff8edd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007f1772679b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007f17727589af in QInotifyFileSystemWatcherEngine::run (this=0x16a0e90) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f177267caec in QThreadPrivate::start (arg=0x16a0e90) at thread/qthread_unix.cpp:338
#17 0x00007f1769e97e9a in start_thread (arg=0x7f174ff8f700) at pthread_create.c:308
#18 0x00007f1775b04cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f174e9aa700 (LWP 8036)):
#0  0x00007f17697d5e40 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1769798672 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1769798cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1769798ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f17727a7c16 in QEventDispatcherGlib::processEvents (this=0x7f17400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f17727782bf in QEventLoop::processEvents (this=this@entry=0x7f174e9a9dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f1772778548 in QEventLoop::exec (this=0x7f174e9a9dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f1772679b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f17727589af in QInotifyFileSystemWatcherEngine::run (this=0x18085b0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f177267caec in QThreadPrivate::start (arg=0x18085b0) at thread/qthread_unix.cpp:338
#10 0x00007f1769e97e9a in start_thread (arg=0x7f174e9aa700) at pthread_create.c:308
#11 0x00007f1775b04cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f176276e780 (LWP 8033)):
[KCrash Handler]
#6  0x00007f177436cdd4 in QDeclarativeItem::~QDeclarativeItem (this=0x2b32ee0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f1757029311 in ~QDeclarativeElement (this=0x2b32ee0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x2b32ee0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f177278e468 in QObject::event (this=0x2b32ee0, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f1771b20e9c in QApplicationPrivate::notify_helper (this=this@entry=0xc4f950, receiver=receiver@entry=0x2b32ee0, e=e@entry=0xe59000) at kernel/qapplication.cpp:4562
#11 0x00007f1771b2530a in QApplication::notify (this=0xc3a1b0, receiver=0x2b32ee0, e=0xe59000) at kernel/qapplication.cpp:4423
#12 0x00007f17734321d6 in KApplication::notify (this=0xc3a1b0, receiver=0x2b32ee0, event=0xe59000) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f177277956e in QCoreApplication::notifyInternal (this=0xc3a1b0, receiver=receiver@entry=0x2b32ee0, event=event@entry=0xe59000) at kernel/qcoreapplication.cpp:915
#14 0x00007f177277d3f1 in sendEvent (event=0xe59000, receiver=0x2b32ee0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xbd81f0) at kernel/qcoreapplication.cpp:1539
#16 0x00007f17727a7a63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#17 postEventSourceDispatch (s=0xc57400) at kernel/qeventdispatcher_glib.cpp:279
#18 0x00007f1769798ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f1769798de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f1769798ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f17727a7bf6 in QEventDispatcherGlib::processEvents (this=0xbd9ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007f1771bc5c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007f17727782bf in QEventLoop::processEvents (this=this@entry=0x7fff06b995e0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f1772778548 in QEventLoop::exec (this=0x7fff06b995e0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f177277d708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#26 0x00007f1775e0b035 in kdemain (argc=1, argv=0x7fff06b998d8) at ../../../../plasma/desktop/shell/main.cpp:120
#27 0x00007f1775a3276d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fff06b998d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff06b998c8) at libc-start.c:226
#28 0x00000000004006d1 in _start ()

This bug may be a duplicate of or related to bug 312005.

Possible duplicates by query: bug 312095, bug 312005, bug 311654, bug 311625, bug 311476.

Reported using DrKonqi