Application: plasma-desktop (4.11.5)
KDE Platform Version: 4.11.5
Qt Version: 4.8.4
Operating System: Linux 3.11.0-19-generic x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:

Switch from 1 activity to another.
I have 4 activities.  Apps running:
  - chromium
  - skype
  - chrome
  - Dropbox
  - virt-manager.py ("Virtual Machine Manager").


Hardware:
  Video Card:
  00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

  Motherboard: P8H67-M PRO

The crash can be reproduced sometimes.

-- 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 0x7f394d7e87c0 (LWP 6004))]

Thread 4 (Thread 0x7f392b4e7700 (LWP 6005)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f394648f06b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f394648f0a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3940b46f6e in start_thread (arg=0x7f392b4e7700) at pthread_create.c:311
#4  0x00007f394d0db9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f389f8e9700 (LWP 6009)):
#0  0x00007f394d0cef7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f394043c6a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f394043c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3949ca8a76 in QEventDispatcherGlib::processEvents (this=0x7f38980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f3949c7a5ef in QEventLoop::processEvents (this=this@entry=0x7f389f8e8d70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3949c7a8e5 in QEventLoop::exec (this=this@entry=0x7f389f8e8d70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3949b7988f in QThread::exec (this=this@entry=0x18d1160) at thread/qthread.cpp:542
#7  0x00007f3949c5bd13 in QInotifyFileSystemWatcherEngine::run (this=0x18d1160) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f3949b7bf2f in QThreadPrivate::start (arg=0x18d1160) at thread/qthread_unix.cpp:338
#9  0x00007f3940b46f6e in start_thread (arg=0x7f389f8e9700) at pthread_create.c:311
#10 0x00007f394d0db9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f389e457700 (LWP 6010)):
#0  0x00007f394047c0ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f394047c3c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f394043c299 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f394043c708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f394043c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3949ca8a76 in QEventDispatcherGlib::processEvents (this=0x7f38900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f3949c7a5ef in QEventLoop::processEvents (this=this@entry=0x7f389e456d70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f3949c7a8e5 in QEventLoop::exec (this=this@entry=0x7f389e456d70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f3949b7988f in QThread::exec (this=this@entry=0x1a4f8b0) at thread/qthread.cpp:542
#9  0x00007f3949c5bd13 in QInotifyFileSystemWatcherEngine::run (this=0x1a4f8b0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f3949b7bf2f in QThreadPrivate::start (arg=0x1a4f8b0) at thread/qthread_unix.cpp:338
#11 0x00007f3940b46f6e in start_thread (arg=0x7f389e457700) at pthread_create.c:311
#12 0x00007f394d0db9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f394d7e87c0 (LWP 6004)):
[KCrash Handler]
#6  0x00007f394b877334 in QDeclarativeItem::~QDeclarativeItem (this=0x5c774d0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f38aa558aa1 in ~QDeclarativeElement (this=0x5c774d0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x5c774d0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f3949c93e08 in QObject::event (this=0x5c774d0, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f3949018dfc in QApplicationPrivate::notify_helper (this=this@entry=0x1896050, receiver=receiver@entry=0x5c774d0, e=e@entry=0x3a546d0) at kernel/qapplication.cpp:4567
#11 0x00007f394901f470 in QApplication::notify (this=this@entry=0x1884f30, receiver=receiver@entry=0x5c774d0, e=e@entry=0x3a546d0) at kernel/qapplication.cpp:4353
#12 0x00007f394a93fa6a in KApplication::notify (this=0x1884f30, receiver=0x5c774d0, event=0x3a546d0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f3949c7b8bd in QCoreApplication::notifyInternal (this=0x1884f30, receiver=receiver@entry=0x5c774d0, event=event@entry=0x3a546d0) at kernel/qcoreapplication.cpp:946
#14 0x00007f3949c7ee1f in sendEvent (event=0x3a546d0, receiver=0x5c774d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x18071f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f3949c7f2c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f3949ca9073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x188d400) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f394043c3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f394043c708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f394043c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3949ca8a55 in QEventDispatcherGlib::processEvents (this=0x1808ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f39490ba9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f3949c7a5ef in QEventLoop::processEvents (this=this@entry=0x7fff9f9139d0, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f3949c7a8e5 in QEventLoop::exec (this=this@entry=0x7fff9f9139d0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f3949c7fe5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#27 0x00007f394901734c in QApplication::exec () at kernel/qapplication.cpp:3828
#28 0x00007f394d3e564c in kdemain (argc=1, argv=0x7fff9f913c28) at ../../../../plasma/desktop/shell/main.cpp:126
#29 0x00007f394d002de5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff9f913c28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9f913c18) at libc-start.c:260
#30 0x000000000040070e in _start ()

Possible duplicates by query: bug 332961, bug 332929, bug 332277, bug 332092, bug 331300.

Reported using DrKonqi