Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.1
Qt Version: 4.8.3
Operating System: Linux 3.5.0-25-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
I just logged in the machine like usually
Plasma does not appear.
- Custom settings of the application:
Before I shutdown last, I put the panel to autohide.

There is no problem in logging and getting a proper plasma shell if I use my guest account.

The crash can be reproduced every time.

-- 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 0x7fd8d402d780 (LWP 4598))]

Thread 6 (Thread 0x7fd8c4d8a700 (LWP 4599)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd8e109ccd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fd8e109cd09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fd8db74ae9a in start_thread (arg=0x7fd8c4d8a700) at pthread_create.c:308
#4  0x00007fd8e7459cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fd8bbbb3700 (LWP 4600)):
#0  0x00007fd8e744e303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fd8db04bd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd8db04bea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd8e4045c46 in QEventDispatcherGlib::processEvents (this=0x7fd8b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fd8e40162ef in QEventLoop::processEvents (this=this@entry=0x7fd8bbbb2dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd8e4016578 in QEventLoop::exec (this=0x7fd8bbbb2dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fd8e3f17b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fd8e3ff69df in QInotifyFileSystemWatcherEngine::run (this=0x2c93240) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd8e3f1ab1c in QThreadPrivate::start (arg=0x2c93240) at thread/qthread_unix.cpp:338
#9  0x00007fd8db74ae9a in start_thread (arg=0x7fd8bbbb3700) at pthread_create.c:308
#10 0x00007fd8e7459cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fd8b3d97700 (LWP 4603)):
#0  0x00007fd8e744e303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fd8db04bd84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd8db04bea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd8e4045c46 in QEventDispatcherGlib::processEvents (this=0x7fd8a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fd8e40162ef in QEventLoop::processEvents (this=this@entry=0x7fd8b3d96dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd8e4016578 in QEventLoop::exec (this=0x7fd8b3d96dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fd8e3f17b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fd8e3ff69df in QInotifyFileSystemWatcherEngine::run (this=0x2ffe880) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd8e3f1ab1c in QThreadPrivate::start (arg=0x2ffe880) at thread/qthread_unix.cpp:338
#9  0x00007fd8db74ae9a in start_thread (arg=0x7fd8b3d97700) at pthread_create.c:308
#10 0x00007fd8e7459cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd8b147a700 (LWP 4622)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
#1  0x00007fd8e3f1afd7 in wait (time=30000, this=0x24f20e0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x454abb8, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fd8e3f0e57f in QThreadPoolThread::run (this=0x454a4e0) at concurrent/qthreadpool.cpp:141
#4  0x00007fd8e3f1ab1c in QThreadPrivate::start (arg=0x454a4e0) at thread/qthread_unix.cpp:338
#5  0x00007fd8db74ae9a in start_thread (arg=0x7fd8b147a700) at pthread_create.c:308
#6  0x00007fd8e7459cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd8b0c79700 (LWP 4623)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
#1  0x00007fd8e3f1afd7 in wait (time=30000, this=0x24f20e0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x454abb8, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fd8e3f0e57f in QThreadPoolThread::run (this=0x454a9a0) at concurrent/qthreadpool.cpp:141
#4  0x00007fd8e3f1ab1c in QThreadPrivate::start (arg=0x454a9a0) at thread/qthread_unix.cpp:338
#5  0x00007fd8db74ae9a in start_thread (arg=0x7fd8b0c79700) at pthread_create.c:308
#6  0x00007fd8e7459cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd8d402d780 (LWP 4598)):
[KCrash Handler]
#6  0x00007fd8e5c0cdd4 in QDeclarativeItem::~QDeclarativeItem (this=0x4089910, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007fd8e5bd06ee in ~QDeclarativeElement (this=0x4089910, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x4089910, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007fd8e402c498 in QObject::event (this=0x4089910, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007fd8e33bee9c in QApplicationPrivate::notify_helper (this=this@entry=0xb1c270, receiver=receiver@entry=0x4089910, e=e@entry=0x3eb53a0) at kernel/qapplication.cpp:4562
#11 0x00007fd8e33c330a in QApplication::notify (this=0xafab80, receiver=0x4089910, e=0x3eb53a0) at kernel/qapplication.cpp:4423
#12 0x00007fd8e4cd1ad6 in KApplication::notify (this=0xafab80, receiver=0x4089910, event=0x3eb53a0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007fd8e401759e in QCoreApplication::notifyInternal (this=0xafab80, receiver=receiver@entry=0x4089910, event=event@entry=0x3eb53a0) at kernel/qcoreapplication.cpp:915
#14 0x00007fd8e401b421 in sendEvent (event=0x3eb53a0, receiver=0x4089910) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52, data=0xa881f0) at kernel/qcoreapplication.cpp:1539
#16 0x00007fd8e401b6a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52) at kernel/qcoreapplication.cpp:1432
#17 0x00007fd8e401b76f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1194
#18 0x00007fd8e7762721 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#19 0x00007fd8e738776d in __libc_start_main (main=0x4006a0, argc=1, ubp_av=0x7fff9eaadad8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9eaadac8) at libc-start.c:226
#20 0x00000000004006d1 in _start ()

Possible duplicates by query: bug 316547, bug 315561, bug 314924, bug 309662, bug 308111.

Reported using DrKonqi