Application: plasma-desktop (4.11.11)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.2.0-38-generic i686
Distribution: Ubuntu 14.04.3 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I started the computer, and FIRST the plasma-screen crashed, then Kmail, telling «to much time to get a lock »
- Unusual behavior I noticed:
I didn't ask anything to Kmail, it should NOT retrieve mail when starting.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb773fa40 (LWP 10660))]

Thread 4 (Thread 0xaab53b40 (LWP 10662)):
#0  0x0503af01 in g_thread_self () at /build/buildd/glib2.0-2.40.2/./glib/gthread.c:957
#1  0x05014516 in g_main_context_iteration (context=0xaa2004e0, may_block=1) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3795
#2  0x0796d95f in QEventDispatcherGlib::processEvents (this=0xaa200468, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#3  0x0793c823 in QEventLoop::processEvents (this=this@entry=0xaab53258, flags=...) at kernel/qeventloop.cpp:149
#4  0x0793cb49 in QEventLoop::exec (this=this@entry=0xaab53258, flags=...) at kernel/qeventloop.cpp:204
#5  0x0782923d in QThread::exec (this=this@entry=0xa0ce368) at thread/qthread.cpp:537
#6  0x0791cc44 in QInotifyFileSystemWatcherEngine::run (this=0xa0ce368) at io/qfilesystemwatcher_inotify.cpp:265
#7  0x0782bb6f in QThreadPrivate::start (arg=0xa0ce368) at thread/qthread_unix.cpp:349
#8  0x07bc8f70 in start_thread (arg=0xaab53b40) at pthread_create.c:312
#9  0x001fbbee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 3 (Thread 0xaa140b40 (LWP 10663)):
#0  0x0039f416 in __kernel_vsyscall ()
#1  0x07bccd4b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0x00208dcc in __pthread_cond_wait (cond=0x45848d0 <QTWTF::pageheap_memory+20720>, mutex=0x45848b8 <QTWTF::pageheap_memory+20696>) at forward.c:149
#3  0x04481c92 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=this@entry=0x457f7e0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x04481cdf in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x457f7e0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x07bc8f70 in start_thread (arg=0xaa140b40) at pthread_create.c:312
#6  0x001fbbee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 2 (Thread 0xa65ffb40 (LWP 10667)):
#0  g_ptr_array_set_size (array=0xa6801b98, length=length@entry=0) at /build/buildd/glib2.0-2.40.2/./glib/garray.c:1136
#1  0x050138f4 in g_main_context_prepare (context=context@entry=0xa9d6dd8, priority=priority@entry=0xa65ff148) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3323
#2  0x050142df in g_main_context_iterate (context=context@entry=0xa9d6dd8, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3714
#3  0x05014528 in g_main_context_iteration (context=0xa9d6dd8, may_block=1) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3795
#4  0x0796d95f in QEventDispatcherGlib::processEvents (this=0xa00fd58, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x0793c823 in QEventLoop::processEvents (this=this@entry=0xa65ff258, flags=...) at kernel/qeventloop.cpp:149
#6  0x0793cb49 in QEventLoop::exec (this=this@entry=0xa65ff258, flags=...) at kernel/qeventloop.cpp:204
#7  0x0782923d in QThread::exec (this=this@entry=0xa9c1868) at thread/qthread.cpp:537
#8  0x0791cc44 in QInotifyFileSystemWatcherEngine::run (this=0xa9c1868) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x0782bb6f in QThreadPrivate::start (arg=0xa9c1868) at thread/qthread_unix.cpp:349
#10 0x07bc8f70 in start_thread (arg=0xa65ffb40) at pthread_create.c:312
#11 0x001fbbee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xb773fa40 (LWP 10660)):
[KCrash Handler]
#7  QPainterPrivate::attachPainterPrivate (q=0xbfb08738, pdev=0x0) at painting/qpainter.cpp:245
#8  0x0135428c in QPainter::QPainter (this=0xbfb08738, pd=0x0) at painting/qpainter.cpp:1504
#9  0x014076b0 in QRasterWindowSurface::beginPaint (this=0xbd35000, rgn=...) at painting/qwindowsurface_raster.cpp:152
#10 0x01423d16 in beginPaint (toCleanIsInTopLevelCoordinates=true, returnInfo=0xbfb087c8, windowSurface=0xbd35000, widget=<optimized out>, toClean=..., this=<optimized out>) at painting/qbackingstore.cpp:379
#11 QWidgetBackingStore::sync (this=this@entry=0xbd350d8) at painting/qbackingstore.cpp:1304
#12 0x0142447b in QWidgetBackingStore::sync (this=0xbd350d8, exposedWidget=0xbd2e808, exposedRegion=...) at painting/qbackingstore.cpp:1161
#13 0x0122b09a in QWidgetPrivate::syncBackingStore (this=this@entry=0xbd2e828, region=...) at kernel/qwidget.cpp:1903
#14 0x0125b054 in QETWidget::translatePaintEvent (this=this@entry=0xbd2e808, event=event@entry=0xbfb08bdc) at kernel/qapplication_x11.cpp:5607
#15 0x0126c8ba in QApplication::x11ProcessEvent (this=0x9e2d240, event=event@entry=0xbfb08bdc) at kernel/qapplication_x11.cpp:3649
#16 0x01298554 in x11EventSourceDispatch (s=s@entry=0x9e3c300, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#17 0x050141e3 in g_main_dispatch (context=0x9e3b008, context@entry=0x9e3c300) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3064
#18 g_main_context_dispatch (context=context@entry=0x9e3b008) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3663
#19 0x05014468 in g_main_context_iterate (context=context@entry=0x9e3b008, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3734
#20 0x05014528 in g_main_context_iteration (context=0x9e3b008, may_block=1) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3795
#21 0x0796d93b in QEventDispatcherGlib::processEvents (this=this@entry=0x9e35708, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#22 0x0129860e in QGuiEventDispatcherGlib::processEvents (this=0x9e35708, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x0793c823 in QEventLoop::processEvents (this=this@entry=0xbfb08e98, flags=...) at kernel/qeventloop.cpp:149
#24 0x0793cb49 in QEventLoop::exec (this=this@entry=0xbfb08e98, flags=...) at kernel/qeventloop.cpp:204
#25 0x079428fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#26 0x011e1a24 in QApplication::exec () at kernel/qapplication.cpp:3828
#27 0x00bdbd27 in kdemain (argc=1, argv=0xbfb09034) at ../../../../plasma/desktop/shell/main.cpp:126
#28 0x0804855b in main (argc=1, argv=0xbfb09034) at plasma-desktop_dummy.cpp:3

Reported using DrKonqi