Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

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

just at the startup of the KDE desktop, while loading the session, suddenly the plasma craches... and then restart correctly by itself with no problem. Thus I was not doing much. Might be something with my session but really not sure. My distro is an updated one since hardy.

The crash can be reproduced every time.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc19fc8d7c0 (LWP 2436))]

Thread 4 (Thread 0x7fc18191a700 (LWP 2437)):
#0  0x00007fc19f59af03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc193f7d104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc193f7d639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc19c7a9446 in QEventDispatcherGlib::processEvents (this=0x1236df0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc19c77d882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc19c77dabc in QEventLoop::exec (this=0x7fc181919cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fc19c694924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fc19c75fc2f in QInotifyFileSystemWatcherEngine::run (this=0x128bfc0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc19c697175 in QThreadPrivate::start (arg=0x128bfc0) at thread/qthread_unix.cpp:320
#9  0x00007fc192002853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fc194880d8c in start_thread (arg=0x7fc18191a700) at pthread_create.c:304
#11 0x00007fc19f5a804d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc175461700 (LWP 2466)):
#0  0x00007fc19f59af03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc193f7d104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc193f7d639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc19c7a9446 in QEventDispatcherGlib::processEvents (this=0x7fc17c0056d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc19c77d882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc19c77dabc in QEventLoop::exec (this=0x7fc175460cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fc19c694924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fc19c75fc2f in QInotifyFileSystemWatcherEngine::run (this=0x12d5020) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc19c697175 in QThreadPrivate::start (arg=0x12d5020) at thread/qthread_unix.cpp:320
#9  0x00007fc192002853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fc194880d8c in start_thread (arg=0x7fc175461700) at pthread_create.c:304
#11 0x00007fc19f5a804d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc16e37d700 (LWP 2472)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc199bf62a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fc199f0f180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fc199bf62d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fc199f1d254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fc192002853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007fc194880d8c in start_thread (arg=0x7fc16e37d700) at pthread_create.c:304
#5  0x00007fc19f5a804d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc19fc8d7c0 (LWP 2436)):
[KCrash Handler]
#6  0x00007fc19c128224 in QGraphicsLayoutItem::isLayout (this=0x22a7f10) at graphicsview/qgraphicslayoutitem.cpp:868
#7  0x00007fc19c127182 in QGraphicsLayoutPrivate::activateRecursive (this=0xd0b340, item=0x22a7f10) at graphicsview/qgraphicslayout_p.cpp:181
#8  0x00007fc19c1271c0 in QGraphicsLayoutPrivate::activateRecursive (this=0xd0b340, item=0xd58b50) at graphicsview/qgraphicslayout_p.cpp:189
#9  0x00007fc19c126cab in QGraphicsLayout::activate (this=0xd58b50) at graphicsview/qgraphicslayout.cpp:261
#10 0x00007fc19c126d69 in QGraphicsLayout::widgetEvent (this=0xd58b50, e=<value optimized out>) at graphicsview/qgraphicslayout.cpp:372
#11 0x00007fc19c164a8a in QGraphicsWidget::event (this=0xdd5130, event=0x1fe5bf0) at graphicsview/qgraphicswidget.cpp:1347
#12 0x00007fc19bb3f9e4 in QApplicationPrivate::notify_helper (this=0xad7d30, receiver=0xdd5130, e=0x1fe5bf0) at kernel/qapplication.cpp:4462
#13 0x00007fc19bb443aa in QApplication::notify (this=<value optimized out>, receiver=0xdd5130, e=0x1fe5bf0) at kernel/qapplication.cpp:4341
#14 0x00007fc19d436866 in KApplication::notify (this=0xac1350, receiver=0xdd5130, event=0x1fe5bf0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007fc19c77e49c in QCoreApplication::notifyInternal (this=0xac1350, receiver=0xdd5130, event=0x1fe5bf0) at kernel/qcoreapplication.cpp:731
#16 0x00007fc19c781c25 in sendEvent (receiver=0x0, event_type=0, data=0xa0eb60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xa0eb60) at kernel/qcoreapplication.cpp:1372
#18 0x00007fc19c7a9253 in sendPostedEvents (s=0xad39c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#19 postEventSourceDispatch (s=0xad39c0) at kernel/qeventdispatcher_glib.cpp:277
#20 0x00007fc193f7cbcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fc193f7d3a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fc193f7d639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fc19c7a93ef in QEventDispatcherGlib::processEvents (this=0xa0e340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#24 0x00007fc19bbe6dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007fc19c77d882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007fc19c77dabc in QEventLoop::exec (this=0x7fff84f6aad0, flags=...) at kernel/qeventloop.cpp:201
#27 0x00007fc19c781ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#28 0x00007fc19f894897 in kdemain (argc=1, argv=0x7fff84f6ae98) at ../../../../plasma/desktop/shell/main.cpp:118
#29 0x00007fc19f4e0eff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fff84f6ae98, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff84f6ae88) at libc-start.c:226
#30 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 273965.

Possible duplicates by query: bug 273965, bug 271899, bug 271864, bug 271148, bug 269347.

Reported using DrKonqi