Application: plasma-desktop (0.4) KDE Platform Version: 4.6.2 (4.6.2) Qt Version: 4.7.2 Operating System: Linux 2.6.38-11-generic-pae i686 Distribution: Ubuntu 11.04 -- Information about the crash: - What I was doing when the application crashed: Plasma often crashes at certain instances. These include: 1. When my wallpaper is set to "slideshow" and it changes. 2. When I open the plasma dashboard - Custom settings of the application: 1. Desktop wallpaper set to slideshow The crash can be reproduced some of the time. -- Backtrace: Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault [KCrash Handler] #7 0xb35e6942 in ?? () from /usr/lib/i386-linux-gnu/libfontconfig.so.1 #8 0xb35e6cee in FcStrCmpIgnoreCase () from /usr/lib/i386-linux-gnu/libfontconfig.so.1 #9 0xb35d3610 in ?? () from /usr/lib/i386-linux-gnu/libfontconfig.so.1 #10 0xb35d4382 in FcConfigSubstituteWithPat () from /usr/lib/i386-linux-gnu/libfontconfig.so.1 #11 0xb35d48e7 in FcConfigSubstitute () from /usr/lib/i386-linux-gnu/libfontconfig.so.1 #12 0xb5e3d1b9 in tryPatternLoad (p=<value optimized out>, screen=0, request=..., script=0, matchedPattern=0xbfccbbe4) at text/qfontdatabase_x11.cpp:1602 #13 0xb5e459bd in loadFc (d=0x8ea1ae0, script=0) at text/qfontdatabase_x11.cpp:1709 #14 QFontDatabase::load (d=0x8ea1ae0, script=0) at text/qfontdatabase_x11.cpp:1960 #15 0xb5e2172f in QFontPrivate::engineForScript (this=0x8ea1ae0, script=0) at text/qfont.cpp:270 #16 0xb5e5a14a in QTextEngine::fontEngine (this=0x8ea0d58, si=..., ascent=0x8ea1ab8, descent=0x8ea1ab4, leading=0x8ea1abc) at text/qtextengine.cpp:1802 #17 0xb5e5aafc in QTextEngine::shapeTextWithHarfbuzz (this=0x8ea0d58, item=0) at text/qtextengine.cpp:1135 #18 0xb5e5bad5 in QTextEngine::shapeText (this=0x8ea0d58, item=0) at text/qtextengine.cpp:874 #19 0xb5e5bf14 in QTextEngine::shape (this=0x8ea0d58, item=0) at text/qtextengine.cpp:1381 #20 0xb5e66fea in QTextLine::layout_helper (this=0xbfccc940, maxGlyphs=2147483647) at text/qtextlayout.cpp:1836 #21 0xb5e67eb3 in QTextLine::setLineWidth (this=0xbfccc940, width=<value optimized out>) at text/qtextlayout.cpp:1624 #22 0xb5ea6cfa in QTextDocumentLayoutPrivate::layoutBlock (this=0x8e9ee28, bl=..., blockPosition=0, blockFormat=..., layoutStruct=0xbfcccd70, layoutFrom=0, layoutTo=2147483647, previousBlockFormat=0x0) at text/qtextdocumentlayout.cpp:2600 #23 0xb5eafc1a in QTextDocumentLayoutPrivate::layoutFlow (this=0x8e9ee28, it=..., layoutStruct=0xbfcccd70, layoutFrom=0, layoutTo=2147483647, width=...) at text/qtextdocumentlayout.cpp:2404 #24 0xb5eade8d in QTextDocumentLayoutPrivate::layoutFrame (this=0x8e9ee28, f=0x8e50190, layoutFrom=0, layoutTo=2147483647, frameWidth=..., frameHeight=..., parentY=...) at text/qtextdocumentlayout.cpp:2145 #25 0xb5eae960 in QTextDocumentLayoutPrivate::layoutFrame (this=0x8e9ee28, f=0x8e50190, layoutFrom=0, layoutTo=2147483647, parentY=...) at text/qtextdocumentlayout.cpp:2051 #26 0xb5eb1bc7 in QTextDocumentLayout::doLayout (this=0x8ed8598, from=0, oldLength=0, length=2147483647) at text/qtextdocumentlayout.cpp:2914 #27 0xb5eb2083 in QTextDocumentLayoutPrivate::ensureLayoutedByPosition (this=0x8e9ee28, position=1000) at text/qtextdocumentlayout.cpp:3076 #28 0xb5eb27d2 in QTextDocumentLayoutPrivate::layoutStep (this=0x8e9ee28) at text/qtextdocumentlayout.cpp:3082 #29 0xb5eb33b8 in QTextDocumentLayout::documentChanged (this=0x8ed8598, from=0, oldLength=0, length=11) at text/qtextdocumentlayout.cpp:2874 #30 0xb5e8c051 in QTextDocumentPrivate::finishEdit (this=0x8e9f0a8) at text/qtextdocument_p.cpp:1218 #31 0xb5e7d9c1 in QTextDocument::setHtml (this=0x8e3fe18, html=...) at text/qtextdocument.cpp:1201 #32 0xb6039922 in QLabelPrivate::ensureTextPopulated (this=0x8e9d4a8) at widgets/qlabel.cpp:1540 #33 0xb6039a90 in QLabelPrivate::ensureTextLayouted (this=0x8e9d4a8) at widgets/qlabel.cpp:1574 #34 0xb6039eee in QLabelPrivate::sizeForWidth (this=0x8e9d4a8, w=-1) at widgets/qlabel.cpp:652 #35 0xb603a5d9 in QLabel::minimumSizeHint (this=0x8e9d490) at widgets/qlabel.cpp:899 #36 0xb6243fbd in QGraphicsProxyWidget::sizeHint (this=0x8e44d28, which=Qt::MinimumSize, constraint=...) at graphicsview/qgraphicsproxywidget.cpp:1439 #37 0xb74cc0b5 in Plasma::Label::sizeHint (this=0x8e44d28, which=Qt::MinimumSize, constraint=...) at ../../plasma/widgets/label.cpp:339 #38 0xb6241d5e in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x8e9d370, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175 #39 0xb6242634 in QGraphicsLayoutItem::effectiveSizeHint (this=0x8e44d38, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:818 #40 0xb6283963 in QGraphicsWidget::setGeometry (this=0x8e44d28, rect=...) at graphicsview/qgraphicswidget.cpp:356 #41 0xb6244294 in QGraphicsProxyWidget::setGeometry (this=0x8e44d28, rect=...) at graphicsview/qgraphicsproxywidget.cpp:771 #42 0xb6281b01 in QGraphicsWidget::resize (this=0x8e44d28, size=...) at graphicsview/qgraphicswidget.cpp:309 #43 0xb6284713 in QGraphicsWidget::updateGeometry (this=0x8e44d28) at graphicsview/qgraphicswidget.cpp:1063 #44 0xb62422a2 in QGraphicsLayoutItem::setSizePolicy (this=0x8e44d38, policy=...) at graphicsview/qgraphicslayoutitem.cpp:466 #45 0xb5c3ba09 in QWidget::setSizePolicy (this=0x8e9d490, policy=...) at kernel/qwidget.cpp:9768 #46 0xb603859b in QLabelPrivate::updateLabel (this=0x8e9d4a8) at widgets/qlabel.cpp:1194 #47 0xb74cd1c1 in Plasma::Label::setText (this=0x8e44d28, text=...) at ../../plasma/widgets/label.cpp:115 #48 0xafe88704 in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so #49 0xafe89d8c in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so #50 0xafe81299 in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so #51 0xb743b4ea in Plasma::PopupAppletPrivate::popupConstraintsEvent (this=0x8ee7d18, constraints=...) at ../../plasma/popupapplet.cpp:247 #52 0xb73dd452 in Plasma::Applet::flushPendingConstraintsEvents (this=0x8eb1538) at ../../plasma/applet.cpp:1341 #53 0xb011af10 in SystemTray::PlasmoidTask::createWidget (this=0x8e4ce30, host=0x8bb9660) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtask.cpp:104 #54 0xb0111e6f in SystemTray::Task::widget (this=0x8e4ce30, host=0x8bb9660, createIfNecessary=true) at ../../../../../plasma/generic/applets/systemtray/core/task.cpp:78 #55 0xb012f2cb in SystemTray::TaskArea::addWidgetForTask (this=0x8bbe480, task=0x8e4ce30) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:257 #56 0xb01304de in SystemTray::TaskArea::addTask (this=0x8bbe480, task=0x8e4ce30) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:221 #57 0xb013085f in SystemTray::TaskArea::qt_metacall (this=0x8bbe480, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfcce0c8) at ./taskarea.moc:89 #58 0xb66966ba in QMetaObject::metacall (object=0x8bbe480, cl=QMetaObject::InvokeMetaMethod, idx=22, argv=0xbfcce0c8) at kernel/qmetaobject.cpp:237 #59 0xb66a64ff in QMetaObject::activate (sender=0x8b2afc0, m=0xb0137028, local_signal_index=0, argv=0xbfcce0c8) at kernel/qobject.cpp:3287 #60 0xb0110c13 in SystemTray::Manager::taskAdded (this=0x8b2afc0, _t1=0x8e4ce30) at ./manager.moc:99 #61 0xb0110e1f in SystemTray::Manager::addTask (this=0x8b2afc0, task=0x8e4ce30) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87 #62 0xb011100f in SystemTray::Manager::qt_metacall (this=0x8b2afc0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbfcce258) at ./manager.moc:86 #63 0xb66966ba in QMetaObject::metacall (object=0x8b2afc0, cl=QMetaObject::InvokeMetaMethod, idx=7, argv=0xbfcce258) at kernel/qmetaobject.cpp:237 #64 0xb66a64ff in QMetaObject::activate (sender=0x8b24ee8, m=0xb0137084, local_signal_index=0, argv=0xbfcce258) at kernel/qobject.cpp:3287 #65 0xb0111793 in SystemTray::Protocol::taskCreated (this=0x8b24ee8, _t1=0x8e4ce30) at ./protocol.moc:91 #66 0xb011950b in SystemTray::PlasmoidProtocol::addApplet (this=0x8b24ee8, appletName=..., id=3, parent=0x8bb9660) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:114 #67 0xb0119eee in SystemTray::PlasmoidProtocol::loadFromConfig (this=0x8b24ee8, parent=0x8bb9660) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:83 #68 0xb011096a in SystemTray::Manager::loadApplets (this=0x8b2afc0, parent=0x8bb9660) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:105 #69 0xb0125f57 in SystemTray::Applet::configChanged (this=0x8bb9660) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:207 #70 0xb0121d61 in SystemTray::Applet::init (this=0x8bb9660) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:162 #71 0xb73f08ce in Plasma::ContainmentPrivate::initApplets (this=0x8a9ee58) at ../../plasma/containment.cpp:463 #72 0xb740484b in Plasma::CoronaPrivate::importLayout (this=0x899e178, conf=..., mergeConfig=false) at ../../plasma/corona.cpp:1035 #73 0xb74054ec in Plasma::Corona::loadLayout (this=0x8a3ef80, configName=...) at ../../plasma/corona.cpp:278 #74 0xb74055be in Plasma::Corona::initializeLayout (this=0x8a3ef80, configName=...) at ../../plasma/corona.cpp:181 #75 0xb778b1b7 in PlasmaApp::corona (this=0x8993268) at ../../../../plasma/desktop/shell/plasmaapp.cpp:797 #76 0xb778b4fb in PlasmaApp::setupDesktop (this=0x8993268) at ../../../../plasma/desktop/shell/plasmaapp.cpp:299 #77 0xb778ce42 in PlasmaApp::qt_metacall (this=0x8993268, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x8a1deb0) at ./plasmaapp.moc:155 #78 0xb66966ba in QMetaObject::metacall (object=0x8993268, cl=QMetaObject::InvokeMetaMethod, idx=45, argv=0x8a1deb0) at kernel/qmetaobject.cpp:237 #79 0xb66a0e16 in QMetaCallEvent::placeMetaCall (this=0x8a2c268, object=0x8993268) at kernel/qobject.cpp:535 #80 0xb66a53b7 in QObject::event (this=0x8993268, e=0x8a2c268) at kernel/qobject.cpp:1226 #81 0xb66906ab in QCoreApplication::event (this=0x8993268, e=0x8a2c268) at kernel/qcoreapplication.cpp:1560 #82 0xb5beb23f in QApplication::event (this=0x8993268, e=0x8a2c268) at kernel/qapplication.cpp:2503 #83 0xb5be8d24 in QApplicationPrivate::notify_helper (this=0x89a1e60, receiver=0x8993268, e=0x8a2c268) at kernel/qapplication.cpp:4462 #84 0xb5bed8ce in QApplication::notify (this=0x8993268, receiver=0x8993268, e=0x8a2c268) at kernel/qapplication.cpp:3862 #85 0xb6c973ca in KApplication::notify (this=0x8993268, receiver=0x8993268, event=0x8a2c268) at ../../kdeui/kernel/kapplication.cpp:311 #86 0xb66900bb in QCoreApplication::notifyInternal (this=0x8993268, receiver=0x8993268, event=0x8a2c268) at kernel/qcoreapplication.cpp:731 #87 0xb6693c79 in sendEvent (receiver=0x0, event_type=0, data=0x8942f50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215 #88 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8942f50) at kernel/qcoreapplication.cpp:1372 #89 0xb6693e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265 #90 0xb66bd3c4 in sendPostedEvents (s=0x89a2a38) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220 #91 postEventSourceDispatch (s=0x89a2a38) at kernel/qeventdispatcher_glib.cpp:277 #92 0xb363baa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 #93 0xb363c270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #94 0xb363c524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #95 0xb66bd53c in QEventDispatcherGlib::processEvents (this=0x8942aa8, flags=...) at kernel/qeventdispatcher_glib.cpp:422 #96 0xb5c9f1e5 in QGuiEventDispatcherGlib::processEvents (this=0x8942aa8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204 #97 0xb668f289 in QEventLoop::processEvents (this=0xbfccf264, flags=...) at kernel/qeventloop.cpp:149 #98 0xb668f522 in QEventLoop::exec (this=0xbfccf264, flags=...) at kernel/qeventloop.cpp:201 #99 0xb6693ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008 #100 0xb5be68e7 in QApplication::exec () at kernel/qapplication.cpp:3736 #101 0xb77705a5 in kdemain (argc=1, argv=0xbfccf474) at ../../../../plasma/desktop/shell/main.cpp:118 #102 0x080485cb in main (argc=1, argv=0xbfccf474) at plasma-desktop_dummy.cpp:3 Reported using DrKonqi
[Comment from a bug report cleaner] The crash seems to be related to loading some fonts via Qt/fontconfig (for the NetworkManager widget in this case). May be you are using some non-default font which has some problem or your whole font installation has some kind of issue Regards
Thanks for checking! I hadn't made any modifications to the fonts, this happened even after I did clean re-installs of Kubuntu 11.04 32-bit. However, Kubuntu 11.04 64-bit seems to work perfectly fine with very rare plasma crashes. Let me know if I can provide more information to help.
*** Bug 283688 has been marked as a duplicate of this bug. ***
Can you check if removing/renaming the file ".fonts.conf" helps? If yes, you probably need to report the bug to fontconfig developers.
I recommend installing 4.8.0 from the kubuntu-ppa backports PPA. It might fix the crash, among other things.
Seemed like a upstream bug that should be solved in qt 4.8. Closing as such.