Version: (using Devel) Installed from: Compiled sources Compiler: GCC-4.2.3 OS: Linux As the title said, I tried to add the Device Notifier applet to the panel. I dragged it from the desktop to the panel, and the whole plasma crashed. Backtrace: Application: Plasma Workspace (plasma), signal SIGSEGV Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1". [Thread debugging using libthread_db enabled] [New Thread 0xb4cf1740 (LWP 24034)] [New Thread 0xafb92b90 (LWP 24779)] [New Thread 0xb05a7b90 (LWP 24690)] [New Thread 0xb1830b90 (LWP 24060)] [New Thread 0xb24a9b90 (LWP 24041)] [New Thread 0xb4597b90 (LWP 24038)] [KCrash handler] #6 0x00000010 in ?? () #7 0xb7e16ca2 in Plasma::Applet::flushPendingConstraintsEvents ( this=0x81af538) at /home/loacoon/Documents/Downloads/SVN/KDE4/KDE/kdebase/workspace/libs/plasma/applet.cpp:766 #8 0xb7e16d0b in Plasma::Applet::timerEvent (this=0x81af538, event=0xbffea808) at /home/loacoon/Documents/Downloads/SVN/KDE4/KDE/kdebase/workspace/libs/plasma/applet.cpp:1323 #9 0xb66f6d7a in QObject::event () from /usr/lib/libQtCore.so.4 #10 0xb62d531f in QGraphicsWidget::event () from /usr/lib/libQtGui.so.4 #11 0xb5d28bac in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #12 0xb5d2d739 in QApplication::notify () from /usr/lib/libQtGui.so.4 #13 0xb6f67fbb in KApplication::notify (this=0x805e318, receiver=0x81af538, event=0xbffea808) at /home/loacoon/Documents/Downloads/SVN/KDE4/KDE/kdelibs/kdeui/kernel/kapplication.cpp:311 #14 0xb66e6899 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #15 0xb6714281 in ?? () from /usr/lib/libQtCore.so.4 #16 0xb6711b20 in ?? () from /usr/lib/libQtCore.so.4 #17 0xb4e24978 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #18 0xb4e27bce in ?? () from /usr/lib/libglib-2.0.so.0 #19 0x0807ac98 in ?? () #20 0x00000000 in ?? () #0 0xffffe410 in __kernel_vsyscall ()
I can reproduce this with KDE 4.1 Beta1.
can this still reproduced with beta2?
Compiled from SVN today. This is still happening.
Still reproducible, but with a completely different backtrace: Application: Plasma Workspace (plasma), signal SIGSEGV Using host libthread_db library "/lib/libthread_db.so.1". [Thread debugging using libthread_db enabled] [New Thread 0xb5802b60 (LWP 10070)] [New Thread 0xb2896b90 (LWP 10144)] [New Thread 0xb3097b90 (LWP 10075)] [New Thread 0xb3ee6b90 (LWP 10073)] [KCrash handler] #6 0xb63098dd in QGraphicsLayoutItem::sizePolicy (this=0x80bbe58) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayoutitem.cpp:332 #7 0xb6317a4b in QGridLayoutItem::sizePolicy (this=0x83139d8, orientation=Qt::Horizontal) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:531 #8 0xb631863c in QGridLayoutItem::stretchFactor (this=0x83139d8, orientation=Qt::Horizontal) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:512 #9 0xb6318ed8 in QGridLayoutEngine::fillRowData (this=0x80baf8c, rowData=0x80baff0, styleInfo=@0xbf80b2c0, orientation=Qt::Horizontal) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:1265 #10 0xb631aaf7 in QGridLayoutEngine::ensureColumnAndRowData (this=0x80baf8c, styleInfo=@0xbf80b2c0) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:1417 #11 0xb631b288 in QGridLayoutEngine::sizeHint (this=0x80baf8c, styleInfo=@0xbf80b2c0, which=Qt::MaximumSize) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:1011 #12 0xb630b5b9 in QGraphicsLinearLayout::sizeHint (this=0x83d3cc0, which=Qt::MaximumSize, constraint=@0x80baf0c) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslinearlayout.cpp:506 #13 0xb630a12b in QGraphicsLayoutItemPrivate::effectiveSizeHints ( this=0x80baea0, constraint=@0x80bb114) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayoutitem.cpp:151 #14 0xb630a35f in QGraphicsLayoutItem::effectiveSizeHint (this=0x83d3cc0, which=Qt::MaximumSize, constraint=@0x80bb114) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayoutitem.cpp:697 #15 0xb630d371 in QGraphicsWidget::sizeHint (this=0x8459258, which=Qt::MaximumSize, constraint=@0x80bb114) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicswidget.cpp:581 #16 0xb7e5a005 in Plasma::Applet::sizeHint (this=0x8459258, which=Qt::MaximumSize, constraint=@0x80bb114) at /home/bram/KDE/kdebase/workspace/libs/plasma/applet.cpp:1412 #17 0xb630a12b in QGraphicsLayoutItemPrivate::effectiveSizeHints ( this=0x80bb0a8, constraint=@0xbf80b688) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayoutitem.cpp:151 #18 0xb630a35f in QGraphicsLayoutItem::effectiveSizeHint (this=0x8459268, which=Qt::PreferredSize, constraint=@0xbf80b688) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayoutitem.cpp:697 #19 0xb6317a16 in QGridLayoutItem::sizeHint (this=0x849ac98, which=Qt::PreferredSize, constraint=@0xbf80b688) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:543 #20 0xb63180d3 in QGridLayoutItem::box (this=0x849ac98, orientation=Qt::Horizontal, constraint=-1) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:554 #21 0xb6319015 in QGridLayoutEngine::fillRowData (this=0x8214a24, rowData=0x8214a88, styleInfo=@0xbf80bc2c, orientation=Qt::Horizontal) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:1285 #22 0xb631aaf7 in QGridLayoutEngine::ensureColumnAndRowData (this=0x8214a24, styleInfo=@0xbf80bc2c) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:1417 #23 0xb631ac06 in QGridLayoutEngine::ensureGeometries (this=0x8214a24, styleInfo=@0xbf80bc2c, size=@0xbf80bb50) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:1432 #24 0xb631b081 in QGridLayoutEngine::setGeometries (this=0x8214a24, styleInfo=@0xbf80bc2c, contentsGeometry=@0xbf80bbe0) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgridlayoutengine.cpp:961 #25 0xb630b7a1 in QGraphicsLinearLayout::setGeometry (this=0x8164380, rect=@0xbf80bc78) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslinearlayout.cpp:489 #26 0xb63084a4 in QGraphicsLayout::activate (this=0x8164380) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayout.cpp:252 #27 0xb6308565 in QGraphicsLayout::widgetEvent (this=0x8164380, e=0x82c2998) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicslayout.cpp:315 #28 0xb630c735 in QGraphicsWidget::event (this=0x820ab28, event=0x82c2998) at /home/bram/KDE/qt-copy/src/gui/graphicsview/qgraphicswidget.cpp:1153 #29 0xb5c6e175 in QApplicationPrivate::notify_helper (this=0x8073ee8, receiver=0x820ab28, e=0x82c2998) at /home/bram/KDE/qt-copy/src/gui/kernel/qapplication.cpp:3772 #30 0xb5c6e48b in QApplication::notify (this=0x80560e0, receiver=0x820ab28, e=0x82c2998) at /home/bram/KDE/qt-copy/src/gui/kernel/qapplication.cpp:3366 #31 0xb6dda346 in KApplication::notify (this=0x80560e0, receiver=0x820ab28, event=0x82c2998) at /home/bram/KDE/kdelibs/kdeui/kernel/kapplication.cpp:311 #32 0xb673e991 in QCoreApplication::notifyInternal (this=0x80560e0, receiver=0x820ab28, event=0x82c2998) at /home/bram/KDE/qt-copy/src/corelib/kernel/qcoreapplication.cpp:587 #33 0xb6742e1d in QCoreApplication::sendEvent (receiver=0x820ab28, event=0x82c2998) at ../../include/QtCore/../../../../qt-copy/src/corelib/kernel/qcoreapplication.h:215 #34 0xb673ef28 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x804c148) at /home/bram/KDE/qt-copy/src/corelib/kernel/qcoreapplication.cpp:1198 #35 0xb673f19b in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at /home/bram/KDE/qt-copy/src/corelib/kernel/qcoreapplication.cpp:1091 #36 0xb67744a2 in QCoreApplication::sendPostedEvents () at ../../include/QtCore/../../../../qt-copy/src/corelib/kernel/qcoreapplication.h:220 #37 0xb6773399 in postEventSourceDispatch (s=0x80760a8) at /home/bram/KDE/qt-copy/src/corelib/kernel/qeventdispatcher_glib.cpp:211 #38 0xb583dccd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #39 0xb5840ee3 in ?? () from /usr/lib/libglib-2.0.so.0 #40 0x08076020 in ?? () #41 0x00000000 in ?? () #0 0xb7fb4410 in __kernel_vsyscall ()
What Qt are you using? 4.4.0 from you distro, or qt-copy?
Debian's QT 4.4.0.
SVN commit 828920 by aseigo: remove the proxy from the layout before we delete it as otherwise we get caught in a relayouting with a deleted item BUG:162826 M +4 -5 devicenotifier.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=828920