[Bug 191412] New: Plasma crashed after starting an application (happened with kdevelop and konqueror on separate occasions)

[Shaun Reich]

https://bugs.kde.org/show_bug.cgi?id=191412

           Summary: Plasma crashed after starting an application (happened
                    with kdevelop and konqueror on separate occasions)
           Product: kde
           Version: unspecified
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: shaun.reich at kdemail.net


Title: Plasma crashed after starting an application (happened with kdevelop and
konqueror on separate occasions)

What I was doing when the application crashed:
I feel that this is reproducable, it has occurred quite a few times to me, but
I have no idea what is doing it. This is recent svn (today's), and has been
going on for some time now.

It usually tends to occur when you do certain tasks. For me, it has occurred
when I follow a link via IRC using konqueror (the client runs konqueror
itself). It has also occurred when I have started an application via the icon
on the desktop (when in Desktop containment mode), i.e. KDevelop4.

Everything is built from trunk...

 -- Application and System information:
Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.71 (KDE 4.2.71 (KDE 4.3 >= 20090428))
Qt Version: 4.5.0
Operating System: Linux 2.6.29-ARCH i686

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Aborted
[Current thread is 0 (LWP 2842)]

Thread 2 (Thread 0xa7de8b90 (LWP 2847)):
#0  0xb80dc424 in __kernel_vsyscall ()
#1  0xb65fcc55 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb6666ed0 in QWaitConditionPrivate::wait (this=0x8e850c0, time=4294967295)
at thread/qwaitcondition_unix.cpp:87
#3  0xb66669cf in QWaitCondition::wait (this=0x8e49020, mutex=0x8e4901c,
time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0xb7a3e2f3 in QHostInfoAgent::run (this=0x8e49010) at
kernel/qhostinfo.cpp:260
#5  0xb66665ab in QThreadPrivate::start (arg=0x8e49010) at
thread/qthread_unix.cpp:189
#6  0xb65f9155 in start_thread () from /lib/libpthread.so.0
#7  0xb6457a5e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb3f87950 (LWP 2842)):
[KCrash Handler]
#6  0xb80dc424 in __kernel_vsyscall ()
#7  0xb63b1790 in raise () from /lib/libc.so.6
#8  0xb63b30c8 in abort () from /lib/libc.so.6
#9  0xb665c4df in qt_message_output (msgType=QtFatalMsg, buf=0x96e7348 "ASSERT:
\"d\" in file /home/shaun/kde/include/ksharedptr.h, line 126") at
global/qglobal.cpp:2006
#10 0xb665c556 in qFatal (msg=0xb67b0514 "ASSERT: \"%s\" in file %s, line %d")
at global/qglobal.cpp:2201
#11 0xb665c995 in qt_assert (assertion=0xa8b819c5 "d", file=0xa8b819a0
"/home/shaun/kde/include/ksharedptr.h", line=126) at global/qglobal.cpp:1777
#12 0xa8b6ab71 in KSharedPtr<TaskManager::Task>::operator-> (this=0xbf9f6c24)
at /home/shaun/kde/include/ksharedptr.h:126
#13 0xa8b777c0 in AbstractTaskItem::timerEvent (this=0x96200e8,
event=0xbf9f71f4) at
/home/shaun/kde/src/kdebase/workspace/plasma/applets/tasks/abstracttaskitem.cpp:399
#14 0xb676f346 in QObject::event (this=0x96200e8, e=0xbf9f71f4) at
kernel/qobject.cpp:1082
#15 0xb7089361 in QGraphicsWidget::event (this=0x96200e8, event=0xbf9f71f4) at
graphicsview/qgraphicswidget.cpp:1317
#16 0xb69db72b in QApplicationPrivate::notify_helper (this=0x885fa40,
receiver=0x96200e8, e=0xbf9f71f4) at kernel/qapplication.cpp:4084
#17 0xb69dbadf in QApplication::notify (this=0x8858930, receiver=0x96200e8,
e=0xbf9f71f4) at kernel/qapplication.cpp:3631
#18 0xb77c3561 in KApplication::notify (this=0x8858930, receiver=0x96200e8,
event=0xbf9f71f4) at
/home/shaun/kde/src/kdelibs/kdeui/kernel/kapplication.cpp:307
#19 0xb675b117 in QCoreApplication::notifyInternal (this=0x8858930,
receiver=0x96200e8, event=0xbf9f71f4) at kernel/qcoreapplication.cpp:598
#20 0xb69d816d in QCoreApplication::sendEvent (receiver=0x96200e8,
event=0xbf9f71f4) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 0xb678d1a9 in QTimerInfoList::activateTimers (this=0x8861cfc) at
kernel/qeventdispatcher_unix.cpp:572
#22 0xb678aaf4 in timerSourceDispatch (source=0x8861cc8) at
kernel/qeventdispatcher_glib.cpp:164
#23 0xb5246718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0xb5249c7b in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#25 0xb5249df8 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0xb6789e26 in QEventDispatcherGlib::processEvents (this=0x885f050, flags={i
= -1080069256}) at kernel/qeventdispatcher_glib.cpp:323
#27 0xb6a88a68 in QGuiEventDispatcherGlib::processEvents (this=0x885f050,
flags={i = -1080069208}) at kernel/qguieventdispatcher_glib.cpp:202
#28 0xb67580fc in QEventLoop::processEvents (this=0xbf9f7430, flags={i =
-1080069136}) at kernel/qeventloop.cpp:149
#29 0xb6758356 in QEventLoop::exec (this=0xbf9f7430, flags={i = -1080069064})
at kernel/qeventloop.cpp:196
#30 0xb675b8ef in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#31 0xb69db444 in QApplication::exec () at kernel/qapplication.cpp:3553
#32 0xb809398a in kdemain (argc=1, argv=0xbf9f75c4) at
/home/shaun/kde/src/kdebase/workspace/plasma/shells/desktop/main.cpp:50
#33 0x08048756 in main (argc=) at
/home/shaun/kde/build/kdebase/workspace/plasma/shells/desktop/plasma-desktop_dummy.cpp:3

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