[Bug 161915] removing a widget from panel plus afterwards calling "Add Widgets" causes plasma to crash and locks X

[Eike Hein]

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http://bugs.kde.org/show_bug.cgi?id=161915         




------- Additional Comments From hein kde org  2008-05-10 19:43 -------
This was previously reported by mail on panel-devel as well. Here's a backtrace from Sebastian Kuegler:

Application: Plasma Workspace (plasma), signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0xb573b720 (LWP 30139)]
[New Thread 0xb3020b90 (LWP 30141)]
[New Thread 0xb3e08b90 (LWP 30140)]
[KCrash handler]
#6  0xb6499c05 in QGraphicsLayoutItem::sizePolicy (this=0x821b718)
    at graphicsview/qgraphicslayoutitem.cpp:332
#7  0xb64a7463 in QGridLayoutItem::sizePolicy (this=0x82b5c48, 
    orientation=Qt::Horizontal) at graphicsview/qgridlayoutengine.cpp:531
#8  0xb64a7fd6 in QGridLayoutItem::stretchFactor (this=0x82b5c48, 
    orientation=Qt::Horizontal) at graphicsview/qgridlayoutengine.cpp:512
#9  0xb64a876b in QGridLayoutEngine::fillRowData (this=0x816be64, 
    rowData=0x816bec8, styleInfo= 0xbf8ca05c, orientation=Qt::Horizontal)
    at graphicsview/qgridlayoutengine.cpp:1265
#10 0xb64aa508 in QGridLayoutEngine::ensureColumnAndRowData (this=0x816be64, 
    styleInfo= 0xbf8ca05c) at graphicsview/qgridlayoutengine.cpp:1417
#11 0xb64aa6a2 in QGridLayoutEngine::ensureGeometries (this=0x816be64, 
    styleInfo= 0xbf8ca05c, size= 0xbf8c9fb8)
    at graphicsview/qgridlayoutengine.cpp:1432
#12 0xb64aab2d in QGridLayoutEngine::setGeometries (this=0x816be64, 
    styleInfo= 0xbf8ca05c, contentsGeometry= 0xbf8ca038)
    at graphicsview/qgridlayoutengine.cpp:961
#13 0xb649bc9e in QGraphicsLinearLayout::setGeometry (this=0x8280230, 
    rect= 0xbf8ca0d8) at graphicsview/qgraphicslinearlayout.cpp:489
#14 0xb64988b5 in QGraphicsLayout::activate (this=0x8280230)
    at graphicsview/qgraphicslayout.cpp:251
#15 0xb6498977 in QGraphicsLayout::widgetEvent (this=0x8280230, e=0x83dac30)
    at graphicsview/qgraphicslayout.cpp:314
#16 0xb649cd46 in QGraphicsWidget::event (this=0x817a168, event=0x83dac30)
    at graphicsview/qgraphicswidget.cpp:1153
#17 0xb5eb290d in QApplicationPrivate::notify_helper (this=0x807a7f0, 
    receiver=0x817a168, e=0x83dac30) at kernel/qapplication.cpp:3766
#18 0xb5eb2bf3 in QApplication::notify (this=0x807c770, receiver=0x817a168, 
    e=0x83dac30) at kernel/qapplication.cpp:3360
#19 0xb79ea8f1 in KApplication::notify (this=0x807c770, receiver=0x817a168, 
    event=0x83dac30)
    at /data/kdedev/kde/src/kdelibs/kdeui/kernel/kapplication.cpp:311
#20 0xb6b5363a in QCoreApplication::notifyInternal (this=0x807c770, 
    receiver=0x817a168, event=0x83dac30) at kernel/qcoreapplication.cpp:583
#21 0xb709520b in QCoreApplication::sendEvent (receiver=0x817a168, 
    event=0x83dac30)
    at ../../../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 0xb6b53b52 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, 
    event_type=0, data=0x804aec0) at kernel/qcoreapplication.cpp:1195
#23 0xb6b53d03 in QCoreApplication::sendPostedEvents (receiver=0x0, 
    event_type=0) at kernel/qcoreapplication.cpp:1091
#24 0xb6b84552 in QCoreApplication::sendPostedEvents ()
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#25 0xb6b83763 in postEventSourceDispatch (s=0x807c940)
    at kernel/qeventdispatcher_glib.cpp:211
#26 0xb5875bf8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb5878e5e in ?? () from /usr/lib/libglib-2.0.so.0
#28 0x0807c8b8 in ?? ()
#29 0x00000000 in ?? ()
#0  0xffffe410 in __kernel_vsyscall ()