Bug 311433

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.2
Operating System: Linux 3.5.0-20-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I just switched to a different activity that was starting, when I decided to see what useful widgets I might add on the activity bar while waiting for the activity to load (resource contrained a bit). Then the plasma desktop crashed and restarted.

It is quite likely that this is the same bug as #311219; #311343 sounded like it could be related, but the backtrace to my limited view looks quite different.

-- 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 0x7facd307a780 (LWP 3539))]

Thread 3 (Thread 0x7facb177c700 (LWP 3546)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faccc34a222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007faccc34a259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007facc6bc6e9a in start_thread (arg=0x7facb177c700) at pthread_create.c:308
#4  0x00007facd296fcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7facb038d700 (LWP 3551)):
#0  0x00007facd2964303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007facc64ca036 in g_main_context_poll (n_fds=1, fds=0x7faca8002bb0, timeout=-1, context=0x7faca80009a0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7faca80009a0, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
#3  g_main_context_iterate (context=0x7faca80009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
#4  0x00007facc64ca164 in g_main_context_iteration (context=0x7faca80009a0, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#5  0x00007faccf598906 in QEventDispatcherGlib::processEvents (this=0x7faca80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007faccf567e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faccf568097 in QEventLoop::exec (this=0x7facb038cdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faccf467057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007faccf547b4f in QInotifyFileSystemWatcherEngine::run (this=0x2268070) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007faccf46a07b in QThreadPrivate::start (arg=0x2268070) at thread/qthread_unix.cpp:307
#11 0x00007facc6bc6e9a in start_thread (arg=0x7facb038d700) at pthread_create.c:308
#12 0x00007facd296fcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7facd307a780 (LWP 3539)):
[KCrash Handler]
#6  0x00007facd119f9ee in QDeclarativeItem::~QDeclarativeItem (this=0x7244bc0, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007facb07e31e1 in ~QDeclarativeElement (this=0x7244bc0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<Plasma::FrameSvgItem>::~QDeclarativeElement (this=0x7244bc0, __in_chrg=<optimized out>) at /usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87
#9  0x00007faccf582958 in QObject::event (this=0x7244bc0, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007facce8ea7b4 in notify_helper (e=0x8567800, receiver=0x7244bc0, this=0x20e6490) at kernel/qapplication.cpp:4556
#11 QApplicationPrivate::notify_helper (this=0x20e6490, receiver=0x7244bc0, e=0x8567800) at kernel/qapplication.cpp:4528
#12 0x00007facce8ef583 in QApplication::notify (this=0x216a000, receiver=0x7244bc0, e=0x8567800) at kernel/qapplication.cpp:4417
#13 0x00007facd024d786 in KApplication::notify (this=0x216a000, receiver=0x7244bc0, event=0x8567800) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007faccf56930c in QCoreApplication::notifyInternal (this=0x216a000, receiver=0x7244bc0, event=0x8567800) at kernel/qcoreapplication.cpp:915
#15 0x00007faccf56d0ea in sendEvent (event=0x8567800, receiver=0x7244bc0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x20a91f0) at kernel/qcoreapplication.cpp:1539
#17 0x00007faccf598473 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007facc64c9d53 in g_main_dispatch (context=0x2183300) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:2539
#20 g_main_context_dispatch (context=0x2183300) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3075
#21 0x00007facc64ca0a0 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x2183300, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3146
#22 g_main_context_iterate (context=0x2183300, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
#23 0x00007facc64ca164 in g_main_context_iteration (context=0x2183300, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#24 0x00007faccf59889f in QEventDispatcherGlib::processEvents (this=0x2187750, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007facce992cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007faccf567e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007faccf568097 in QEventLoop::exec (this=0x7fff2e5bd9d0, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007faccf56d3e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#29 0x00007facd2c76be3 in kdemain (argc=1, argv=0x7fff2e5bddb8) at ../../../../plasma/desktop/shell/main.cpp:120
#30 0x00007facd289d76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff2e5bddb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2e5bdda8) at libc-start.c:226
#31 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 311219, bug 311343.

Possible duplicates by query: bug 311343, bug 311239, bug 311219, bug 310997, bug 310686.

Reported using DrKonqi