Regression?

[Sebastian Sauer]

> (backtrace attached)

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Application: Plasma Workspace (plasma), signal SIGSEGV
Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 47143686455712 (LWP 20225)]
[New Thread 1082149200 (LWP 20230)]
[KCrash handler]
#5  0x0000000000000031 in ?? ()
#6  0x00002ae0757a39c1 in Plasma::Containment::setFormFactor (this=0x81e160, 
    formFactor=Plasma::Vertical)
    at /home/kde4/svn/_src/KDE/kdebase/workspace/libs/plasma/containment.cpp:334
#7  0x00002aaaabf98d17 in Panel::constraintsUpdated (this=0x81e160, 
    constraints=@0x7fff3581a910)
    at /home/kde4/svn/_src/KDE/kdebase/workspace/plasma/containments/panel/panel.cpp:138
#8  0x00002ae07577cc00 in Plasma::Applet::flushUpdatedConstraints (
    this=0x81e160)
    at /home/kde4/svn/_src/KDE/kdebase/workspace/libs/plasma/applet.cpp:735
#9  0x00002ae07577e187 in Plasma::Applet::qt_metacall (this=0x81e160, 
    _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fff3581ab10)
    at /home/kde4/svn/_build/kdebase/workspace/libs/plasma/applet.moc:108
#10 0x00002ae0757a3d73 in Plasma::Containment::qt_metacall (this=0x81e160, 
    _c=QMetaObject::InvokeMetaMethod, _id=15, _a=0x7fff3581ab10)
    at /home/kde4/svn/_build/kdebase/workspace/libs/plasma/containment.moc:86
#11 0x00002aaaabf988cf in Panel::qt_metacall (this=0x81e160, 
    _c=QMetaObject::InvokeMetaMethod, _id=15, _a=0x7fff3581ab10)
    at /home/kde4/svn/_build/kdebase/workspace/plasma/containments/panel/panel.moc:64
#12 0x00002ae0794e63e2 in QMetaObject::activate (sender=0xc36310, 
    from_signal_index=4, to_signal_index=4, argv=0x0)
    at kernel/qobject.cpp:3078
#13 0x00002ae0794e682d in QMetaObject::activate (sender=0xc36310, 
    m=0x2ae0797a3f20, local_signal_index=0, argv=0x0)
    at kernel/qobject.cpp:3140
#14 0x00002ae0794f1126 in QSingleShotTimer::timeout (this=0xc36310)
    at .moc/debug-shared/qtimer.moc:73
#15 0x00002ae0794f1167 in QSingleShotTimer::timerEvent (this=0xc36310)
    at kernel/qtimer.cpp:296
#16 0x00002ae0794e6fa2 in QObject::event (this=0xc36310, e=0x7fff3581b7e0)
    at kernel/qobject.cpp:1086
#17 0x00002ae07a0560e1 in QApplicationPrivate::notify_helper (this=0x6413b0, 
    receiver=0xc36310, e=0x7fff3581b7e0) at kernel/qapplication.cpp:3556
#18 0x00002ae07a056400 in QApplication::notify (this=0x623f40, 
    receiver=0xc36310, e=0x7fff3581b7e0) at kernel/qapplication.cpp:3115
#19 0x00002ae07679519e in KApplication::notify (this=0x623f40, 
    receiver=0xc36310, event=0x7fff3581b7e0)
    at /home/kde4/svn/_src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:311
#20 0x00002ae0794d54d6 in QCoreApplication::notifyInternal (this=0x623f40, 
    receiver=0xc36310, event=0x7fff3581b7e0) at kernel/qcoreapplication.cpp:530
#21 0x00002ae0794d86fd in QCoreApplication::sendEvent (receiver=0xc36310, 
    event=0x7fff3581b7e0)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:200
#22 0x00002ae0795003b7 in QTimerInfoList::activateTimers (this=0x644e40)
    at kernel/qeventdispatcher_unix.cpp:554
#23 0x00002ae0794fd283 in timerSourceDispatch (source=0x644de0)
    at kernel/qeventdispatcher_glib.cpp:155
#24 0x00002ae07d350fd3 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#25 0x00002ae07d3542dd in ?? () from /usr/lib/libglib-2.0.so.0
#26 0x00002ae07d35480e in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#27 0x00002ae0794fcbc2 in QEventDispatcherGlib::processEvents (this=0x640d20, 
    flags=@0x7fff3581ba00) at kernel/qeventdispatcher_glib.cpp:338
#28 0x00002ae07a0e595f in QGuiEventDispatcherGlib::processEvents (
    this=0x640d20, flags=@0x7fff3581ba50)
    at kernel/qguieventdispatcher_glib.cpp:191
#29 0x00002ae0794d27c1 in QEventLoop::processEvents (this=0x7fff3581bb00, 
    flags=@0x7fff3581bac0) at kernel/qeventloop.cpp:140
#30 0x00002ae0794d2916 in QEventLoop::exec (this=0x7fff3581bb00, 
    flags=@0x7fff3581bb20) at kernel/qeventloop.cpp:182
#31 0x00002ae0794d5c8c in QCoreApplication::exec ()
    at kernel/qcoreapplication.cpp:759
#32 0x00002ae07a055cb8 in QApplication::exec () at kernel/qapplication.cpp:3053
#33 0x00002ae0754b6a64 in kdemain (argc=1, argv=0x7fff3581be78)
    at /home/kde4/svn/_src/KDE/kdebase/workspace/plasma/plasma/main.cpp:54
#34 0x0000000000400913 in main (argc=1, argv=0x7fff3581be78)
    at /home/kde4/svn/_build/kdebase/workspace/plasma/plasma/plasma-qgv_dummy.cpp:3
#0  0x00002ae07bcdf2e1 in nanosleep () from /lib64/libc.so.6