Bug 318460

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.2
Qt Version: 4.8.3
Operating System: Linux 3.8.6-030806-generic x86_64
Distribution: Linux Mint 14 Nadia

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

I was experimenting setting up 4 virtual desktops with all a different activity, appearance, layout and applications/widgets. Since I already experienced the "get new widget click crash" -bug too often, i made sure I didn't do that this time... And it  worked. A little bit longer. As I was near completion, I noticed very high RAM usage, especially after adding the globe wallpaper and the homerun file launcher. Then a freeze for a few minutes, followed by 4 black desktops and a bug reporter. Desktops slowly came back to life, but I decided to delete all panels, widgets and desktops. After a restart I noticed one widget still running , but hidden from view. I finally found it outside the borders where a desktop had been before. It was the explore directory widget panel thingy. I deleted it. maybe this helps slightly... hope this gets resolved soon. together with the update time bug... They both annoy me alot... I didn't see a relationship though....

happy hunting!

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 0x7f543f3bf780 (LWP 2423))]

Thread 9 (Thread 0x7f541ea96700 (LWP 2424)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f54388f7cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f54388f7d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f5432fa8e9a in start_thread (arg=0x7f541ea96700) at pthread_create.c:308
#4  0x00007f543ecb1cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f5410b4a700 (LWP 2435)):
#0  0x00007ffff5b17ac7 in ?? ()
#1  0x00007f540c002ce0 in ?? ()
#2  0x00007f543f419a60 in ?? ()
#3  0x0000000200000000 in ?? ()
#4  0x00007f540c002660 in ?? ()
#5  0x00007f5410b49bd0 in ?? ()
#6  0x000000007fffffff in ?? ()
#7  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f5403fff700 (LWP 2437)):
#0  0x00007f54328e5ba5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f54328e5e49 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54328a8066 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54328a8c64 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54328a91e2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5408fa04a6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f54328cc645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f5432fa8e9a in start_thread (arg=0x7f5403fff700) at pthread_create.c:308
#8  0x00007f543ecb1cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f53efed4700 (LWP 2441)):
#0  QElapsedTimer::isMonotonic () at tools/qelapsedtimer_unix.cpp:109
#1  0x00007f543b8a074d in QTimerInfoList::repairTimersIfNeeded (this=0x7f53e8002660) at kernel/qeventdispatcher_unix.cpp:403
#2  0x00007f543b8a07b1 in QTimerInfoList::timerWait (this=0x7f53e8002660, tm=...) at kernel/qeventdispatcher_unix.cpp:451
#3  0x00007f543b89f2fc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f53efed3c04) at kernel/qeventdispatcher_glib.cpp:136
#4  0x00007f543b89f3a5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#5  0x00007f54328a8618 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f54328a8cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f54328a8ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f543b89fc46 in QEventDispatcherGlib::processEvents (this=0x7f53e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#9  0x00007f543b8702ef in QEventLoop::processEvents (this=this@entry=0x7f53efed3dc0, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007f543b870578 in QEventLoop::exec (this=0x7f53efed3dc0, flags=...) at kernel/qeventloop.cpp:204
#11 0x00007f543b771b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#12 0x00007f53f1e115a5 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#13 0x00007f543b774b1c in QThreadPrivate::start (arg=0x4204ea0) at thread/qthread_unix.cpp:338
#14 0x00007f5432fa8e9a in start_thread (arg=0x7f53efed4700) at pthread_create.c:308
#15 0x00007f543ecb1cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f54020d3700 (LWP 2800)):
#0  __pthread_mutex_lock (mutex=0x7f53f8000a60) at pthread_mutex_lock.c:87
#1  0x00007f54328e5e21 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54328a8d6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54328a8ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f543b89fc46 in QEventDispatcherGlib::processEvents (this=0x7f53f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f543b8702ef in QEventLoop::processEvents (this=this@entry=0x7f54020d2dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f543b870578 in QEventLoop::exec (this=0x7f54020d2dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f543b771b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f543b8509df in QInotifyFileSystemWatcherEngine::run (this=0x65a3d00) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f543b774b1c in QThreadPrivate::start (arg=0x65a3d00) at thread/qthread_unix.cpp:338
#10 0x00007f5432fa8e9a in start_thread (arg=0x7f54020d3700) at pthread_create.c:308
#11 0x00007f543ecb1cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f54028d4700 (LWP 2801)):
#0  0x00007f543eca6303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f54328a8d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54328a8ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f543b89fc46 in QEventDispatcherGlib::processEvents (this=0x7f53f4002800, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f543b8702ef in QEventLoop::processEvents (this=this@entry=0x7f54028d3dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f543b870578 in QEventLoop::exec (this=0x7f54028d3dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f543b771b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f543b8509df in QInotifyFileSystemWatcherEngine::run (this=0x1b7eda0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f543b774b1c in QThreadPrivate::start (arg=0x1b7eda0) at thread/qthread_unix.cpp:338
#9  0x00007f5432fa8e9a in start_thread (arg=0x7f54028d4700) at pthread_create.c:308
#10 0x00007f543ecb1cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f53daffd700 (LWP 2813)):
#0  0x00007f54328a6914 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f54328a8597 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54328a8cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54328a8ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f543b89fc46 in QEventDispatcherGlib::processEvents (this=0x7f53cc003000, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f543b8702ef in QEventLoop::processEvents (this=this@entry=0x7f53daffce00, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f543b870578 in QEventLoop::exec (this=0x7f53daffce00, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f543b771b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f543b774b1c in QThreadPrivate::start (arg=0x6dff080) at thread/qthread_unix.cpp:338
#9  0x00007f5432fa8e9a in start_thread (arg=0x7f53daffd700) at pthread_create.c:308
#10 0x00007f543ecb1cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f53dbfff700 (LWP 2814)):
#0  0x00007ffff5b17ac7 in ?? ()
#1  0x00007f54041d9410 in ?? ()
#2  0x00007f540400f7c0 in ?? ()
#3  0x00000002dbffebb0 in ?? ()
#4  0x00007f540400f650 in ?? ()
#5  0x00007f53dbffec00 in ?? ()
#6  0x000000007fffffff in ?? ()
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f543f3bf780 (LWP 2423)):
[KCrash Handler]
#6  0x00007f543d465dd4 in QDeclarativeItem::~QDeclarativeItem (this=0x5b76100, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f541dc1ab01 in ~QDeclarativeElement (this=0x5b76100, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x5b76100, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007f543b886498 in QObject::event (this=0x5b76100, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f543ac18e9c in QApplicationPrivate::notify_helper (this=this@entry=0x17ceaa0, receiver=receiver@entry=0x5b76100, e=e@entry=0x5844ab0) at kernel/qapplication.cpp:4562
#11 0x00007f543ac1d30a in QApplication::notify (this=0x17ae220, receiver=0x5b76100, e=0x5844ab0) at kernel/qapplication.cpp:4423
#12 0x00007f543c52bad6 in KApplication::notify (this=0x17ae220, receiver=0x5b76100, event=0x5844ab0) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f543b87159e in QCoreApplication::notifyInternal (this=0x17ae220, receiver=receiver@entry=0x5b76100, event=event@entry=0x5844ab0) at kernel/qcoreapplication.cpp:915
#14 0x00007f543b875421 in sendEvent (event=0x5844ab0, receiver=0x5b76100) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x17421f0) at kernel/qcoreapplication.cpp:1539
#16 0x00007f543b89fa93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#17 postEventSourceDispatch (s=0x17a5360) at kernel/qeventdispatcher_glib.cpp:279
#18 0x00007f54328a8ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f54328a8de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f54328a8ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f543b89fc26 in QEventDispatcherGlib::processEvents (this=0x1743ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007f543acbdc1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007f543b8702ef in QEventLoop::processEvents (this=this@entry=0x7ffff5ad8480, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f543b870578 in QEventLoop::exec (this=0x7ffff5ad8480, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f543b875738 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#26 0x00007f543efba461 in kdemain (argc=1, argv=0x7ffff5ad8778) at ../../../../plasma/desktop/shell/main.cpp:126
#27 0x00007f543ebdf76d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7ffff5ad8778, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff5ad8768) at libc-start.c:226
#28 0x00000000004006d1 in _start ()

This bug may be a duplicate of or related to bug 302931.

Possible duplicates by query: bug 318418, bug 318375, bug 318265, bug 318174, bug 318008.

Reported using DrKonqi