Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-29-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
for the last crash:
i change setting in desktop switcher
i choose single widget for every destop option

-- 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 0x7fbf2d642780 (LWP 1619))]

Thread 4 (Thread 0x7fbf0a718700 (LWP 1620)):
#0  0x00007fbf2cf10b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbf210bf036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbf210bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbf2a0e2426 in QEventDispatcherGlib::processEvents (this=0x7fbf040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fbf2a0b1c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fbf2a0b1ed7 in QEventLoop::exec (this=0x7fbf0a717dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fbf29fb0fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fbf2a0919ff in QInotifyFileSystemWatcherEngine::run (this=0x1e7dc20) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fbf29fb3fcb in QThreadPrivate::start (arg=0x1e7dc20) at thread/qthread_unix.cpp:298
#9  0x00007fbf219c3e9a in start_thread (arg=0x7fbf0a718700) at pthread_create.c:308
#10 0x00007fbf2cf1c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fbee879e700 (LWP 1625)):
#0  0x00007fbf2cf10b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbf210bf036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbf210bf164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbf2a0e2426 in QEventDispatcherGlib::processEvents (this=0x7fbee00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fbf2a0b1c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fbf2a0b1ed7 in QEventLoop::exec (this=0x7fbee879ddd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fbf29fb0fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fbf2a0919ff in QInotifyFileSystemWatcherEngine::run (this=0x246a6c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fbf29fb3fcb in QThreadPrivate::start (arg=0x246a6c0) at thread/qthread_unix.cpp:298
#9  0x00007fbf219c3e9a in start_thread (arg=0x7fbee879e700) at pthread_create.c:308
#10 0x00007fbf2cf1c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbee58c6700 (LWP 1628)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbf26e96222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fbf26e96259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fbf219c3e9a in start_thread (arg=0x7fbee58c6700) at pthread_create.c:308
#4  0x00007fbf2cf1c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbf2d642780 (LWP 1619)):
[KCrash Handler]
#6  0x00007fbf29635199 in QRasterWindowSurface::~QRasterWindowSurface (this=0x649cfa0, __in_chrg=<optimized out>) at painting/qwindowsurface_raster.cpp:117
#7  0x00007fbf29635219 in QRasterWindowSurface::~QRasterWindowSurface (this=0x649cfa0, __in_chrg=<optimized out>) at painting/qwindowsurface_raster.cpp:121
#8  0x00007fbf2964d8de in QWidgetBackingStore::~QWidgetBackingStore (this=0x69dd360, __in_chrg=<optimized out>) at painting/qbackingstore.cpp:909
#9  0x00007fbf2947e3d9 in QWidgetBackingStoreTracker::destroy (this=0x6a35720) at kernel/qwidget.cpp:217
#10 0x00007fbf2947e52e in QWidgetPrivate::deleteExtra (this=0x1ce7a40) at kernel/qwidget.cpp:1830
#11 0x00007fbf2947e75c in QWidgetPrivate::~QWidgetPrivate (this=0x1ce7a40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:357
#12 0x00007fbf2947ea69 in QWidgetPrivate::~QWidgetPrivate (this=0x1ce7a40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:362
#13 0x00007fbf2a0cbbd0 in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#14 ~QScopedPointer (this=0x1d63e48, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#15 QObject::~QObject (this=0x1d63e40, __in_chrg=<optimized out>) at kernel/qobject.cpp:817
#16 0x00007fbf294807dd in QWidget::~QWidget (this=0x1d63e40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1551
#17 0x00007fbf29480a19 in QWidget::~QWidget (this=0x1d63e40, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1700
#18 0x00007fbf29a0a905 in QGlobalStaticDeleter<QWidget>::~QGlobalStaticDeleter (this=0x7fbf29f37038, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qglobal.h:1923
#19 0x00007fbf2ce65921 in __run_exit_handlers (status=0, listp=0x7fbf2d1e0688, run_list_atexit=true) at exit.c:78
#20 0x00007fbf2ce659a5 in __GI_exit (status=<optimized out>) at exit.c:100
#21 0x00007fbf2ce4b774 in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffd1fe5398, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd1fe5388) at libc-start.c:258
#22 0x0000000000400671 in _start ()

Possible duplicates by query: bug 305475, bug 297684, bug 295018, bug 294270, bug 294229.

Reported using DrKonqi