Bug 326860

Application: plasma-desktop (4.11.2)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic x86_64
Distribution: Ubuntu 13.10

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

Occasionally Plasma crashes when logging out, there appears to be nothing unusual up to that point.

The crash can be reproduced sometimes.

-- 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 0x7f9a2f8077c0 (LWP 2447))]

Thread 4 (Thread 0x7f9a0f838700 (LWP 2449)):
#0  0x00007f9a2f0c785d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9a2f0c7701 in __sleep (seconds=0) at ../sysdeps/unix/sysv/linux/sleep.c:137
#2  0x00007f9a284b3022 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f9a284b30a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#4  0x00007f9a22b6df6e in start_thread (arg=0x7f9a0f838700) at pthread_create.c:311
#5  0x00007f9a2f1009cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f9983a3f700 (LWP 2453)):
#0  0x00007fff78bd2a2f in clock_gettime ()
#1  0x00007f9a2f11596d in clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f9a2bbf4757 in do_gettime (frac=0x7f9983a3eb70, sec=0x7f9983a3eb68) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f9a2bccf5eb in updateCurrentTime (this=0x7f997c001178) at kernel/qeventdispatcher_unix.cpp:354
#5  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f997c000910, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:186
#6  0x00007f9a2bccfd02 in QEventDispatcherUNIX::processEvents (this=0x7f997c0008f0, flags=...) at kernel/qeventdispatcher_unix.cpp:937
#7  0x00007f9a2bc9e5ef in QEventLoop::processEvents (this=this@entry=0x7f9983a3ed70, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f9a2bc9e8e5 in QEventLoop::exec (this=this@entry=0x7f9983a3ed70, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f9a2bb9d88f in QThread::exec (this=this@entry=0x1c57a50) at thread/qthread.cpp:542
#10 0x00007f9a2bc7fd13 in QInotifyFileSystemWatcherEngine::run (this=0x1c57a50) at io/qfilesystemwatcher_inotify.cpp:265
#11 0x00007f9a2bb9ff2f in QThreadPrivate::start (arg=0x1c57a50) at thread/qthread_unix.cpp:338
#12 0x00007f9a22b6df6e in start_thread (arg=0x7f9983a3f700) at pthread_create.c:311
#13 0x00007f9a2f1009cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f997bfff700 (LWP 2454)):
#0  0x00007fff78bd2a2f in clock_gettime ()
#1  0x00007f9a2f11596d in clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f9a2bbf4757 in do_gettime (frac=0x7f997bffeb70, sec=0x7f997bffeb68) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f9a2bccf5eb in updateCurrentTime (this=0x7f9974001178) at kernel/qeventdispatcher_unix.cpp:354
#5  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f9974000910, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:186
#6  0x00007f9a2bccfd02 in QEventDispatcherUNIX::processEvents (this=0x7f99740008f0, flags=...) at kernel/qeventdispatcher_unix.cpp:937
#7  0x00007f9a2bc9e5ef in QEventLoop::processEvents (this=this@entry=0x7f997bffed70, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f9a2bc9e8e5 in QEventLoop::exec (this=this@entry=0x7f997bffed70, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f9a2bb9d88f in QThread::exec (this=this@entry=0x1cdbb60) at thread/qthread.cpp:542
#10 0x00007f9a2bc7fd13 in QInotifyFileSystemWatcherEngine::run (this=0x1cdbb60) at io/qfilesystemwatcher_inotify.cpp:265
#11 0x00007f9a2bb9ff2f in QThreadPrivate::start (arg=0x1cdbb60) at thread/qthread_unix.cpp:338
#12 0x00007f9a22b6df6e in start_thread (arg=0x7f997bfff700) at pthread_create.c:311
#13 0x00007f9a2f1009cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f9a2f8077c0 (LWP 2447)):
[KCrash Handler]
#6  0x0000000000000071 in ?? ()
#7  0x00007f9a2d89b337 in QDeclarativeItem::~QDeclarativeItem (this=0x3bd6ed0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#8  0x00007f9a2d862e96 in ~QDeclarativeElement (this=0x3bd6ed0, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x3bd6ed0, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#10 0x00007f9a2bcb7e08 in QObject::event (this=0x3bd6ed0, e=<optimized out>) at kernel/qobject.cpp:1175
#11 0x00007f9a2b03cdfc in QApplicationPrivate::notify_helper (this=this@entry=0xf3de80, receiver=receiver@entry=0x3bd6ed0, e=e@entry=0x4695530) at kernel/qapplication.cpp:4567
#12 0x00007f9a2b043470 in QApplication::notify (this=this@entry=0xf2c150, receiver=receiver@entry=0x3bd6ed0, e=e@entry=0x4695530) at kernel/qapplication.cpp:4353
#13 0x00007f9a2c963a6a in KApplication::notify (this=0xf2c150, receiver=0x3bd6ed0, event=0x4695530) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007f9a2bc9f8bd in QCoreApplication::notifyInternal (this=0xf2c150, receiver=receiver@entry=0x3bd6ed0, event=event@entry=0x4695530) at kernel/qcoreapplication.cpp:946
#15 0x00007f9a2bca2e1f in sendEvent (event=0x4695530, receiver=0x3bd6ed0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52, data=0xea81f0) at kernel/qcoreapplication.cpp:1570
#17 0x00007f9a2bca32c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=52) at kernel/qcoreapplication.cpp:1463
#18 0x00007f9a2bca3e92 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#19 0x00007f9a2b03b34c in QApplication::exec () at kernel/qapplication.cpp:3828
#20 0x00007f9a2f40a27c in kdemain (argc=1, argv=0x7fff78a7bb58) at ../../../../plasma/desktop/shell/main.cpp:126
#21 0x00007f9a2f027de5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fff78a7bb58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff78a7bb48) at libc-start.c:260
#22 0x000000000040070e in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 325998, bug 324687.

Possible duplicates by query: bug 325998, bug 325820, bug 325456, bug 324687, bug 324431.

Reported using DrKonqi