Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
just logged in,  started chromium and thunderbird, logged off

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f86453bc7c0 (LWP 3519))]

Thread 4 (Thread 0x7f861fe8c700 (LWP 3535)):
#0  0x00007f8639d38034 in __pthread_mutex_lock (mutex=0x20befd8) at pthread_mutex_lock.c:61
#1  0x00007f8639227e5d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8639228dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8639229429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8641e8ff3e in QEventDispatcherGlib::processEvents (this=0x20be630, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f8641e63cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f8641e63ef7 in QEventLoop::exec (this=0x7f861fe8bcd0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f8641d7b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f8641e46cbf in QInotifyFileSystemWatcherEngine::run (this=0x20bcfb0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f8641d7dd05 in QThreadPrivate::start (arg=0x20bcfb0) at thread/qthread_unix.cpp:331
#10 0x00007f863654256c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007f8639d35efc in start_thread (arg=0x7f861fe8c700) at pthread_create.c:304
#12 0x00007f8644caa89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f861d632700 (LWP 3537)):
#0  0x00007f8644c9e773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8639228f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8639229429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8641e8ff3e in QEventDispatcherGlib::processEvents (this=0x23cda80, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f8641e63cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8641e63ef7 in QEventLoop::exec (this=0x7f861d631cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f8641d7b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f8641e46cbf in QInotifyFileSystemWatcherEngine::run (this=0x23cce50) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f8641d7dd05 in QThreadPrivate::start (arg=0x23cce50) at thread/qthread_unix.cpp:331
#9  0x00007f863654256c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f8639d35efc in start_thread (arg=0x7f861d632700) at pthread_create.c:304
#11 0x00007f8644caa89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8615dfc700 (LWP 3558)):
#0  0x00007f8644c9e773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8639228f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8639229792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f86168da516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f863924e2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f863654256c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f8639d35efc in start_thread (arg=0x7f8615dfc700) at pthread_create.c:304
#7  0x00007f8644caa89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f86453bc7c0 (LWP 3519)):
[KCrash Handler]
#6  0x00007f8641407c09 in QRasterWindowSurface::~QRasterWindowSurface (this=0x27fc090, __in_chrg=<optimized out>) at painting/qwindowsurface_raster.cpp:110
#7  0x00007f8641407c89 in QRasterWindowSurface::~QRasterWindowSurface (this=0x27fc090, __in_chrg=<optimized out>) at painting/qwindowsurface_raster.cpp:114
#8  0x00007f864142126e in QWidgetBackingStore::~QWidgetBackingStore (this=0x27fb400, __in_chrg=<optimized out>) at painting/qbackingstore.cpp:883
#9  0x00007f864125ea29 in QWidgetBackingStoreTracker::destroy (this=0x27fc280) at kernel/qwidget.cpp:210
#10 0x00007f864125eb7e in QWidgetPrivate::deleteExtra (this=0x1e08190) at kernel/qwidget.cpp:1796
#11 0x00007f864125edac in QWidgetPrivate::~QWidgetPrivate (this=0x1e08190, __in_chrg=<optimized out>) at kernel/qwidget.cpp:341
#12 0x00007f864125f0b9 in QWidgetPrivate::~QWidgetPrivate (this=0x1e08190, __in_chrg=<optimized out>) at kernel/qwidget.cpp:346
#13 0x00007f8641e7c39b in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#14 ~QScopedPointer (this=0x1e46888, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#15 QObject::~QObject (this=0x1e46880, __in_chrg=<optimized out>) at kernel/qobject.cpp:818
#16 0x00007f8641261162 in QWidget::~QWidget (this=0x1e46880, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1528
#17 0x00007f8641261379 in QWidget::~QWidget (this=0x1e46880, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1671
#18 0x00007f86417cbc55 in QGlobalStaticDeleter<QWidget>::~QGlobalStaticDeleter (this=<optimized out>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qglobal.h:1825
#19 0x00007f8644c04821 in __run_exit_handlers (status=0, listp=0x7f8644f615a8, run_list_atexit=true) at exit.c:78
#20 0x00007f8644c048a5 in __GI_exit (status=<optimized out>) at exit.c:100
#21 0x00007f8644bea314 in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff18b53cc8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff18b53cb8) at libc-start.c:258
#22 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 261539.

Possible duplicates by query: bug 290007, bug 289825, bug 288670, bug 288669, bug 288190.

Reported using DrKonqi