Fixing krunner's threading
Thiago Macieira
thiago at kde.org
Wed Mar 3 11:13:50 GMT 2010
Em Terça-feira 02 Março 2010, às 15:49:18, Thiago Macieira escreveu:
> I'm actually raising the bar here.
>
> I'm turning on QT_FATAL_WARNINGS by default in Qt debug builds (starting
> with Qt 4.7).
After suggesting this to Qt developers, the overwhelming reaction was against
it.
So there will be no QT_FATAL_WARNINGS enabled by default in Qt.
But, as promised, here are the stack traces of the Plasma warnings (the
krunner ones are known: the use of KIO outside the main thread).
(kdelibs r1098145, kdebase r1098199)
-------------- Message: --------------
QDBusObjectPath: invalid path ""
Partial backtrace:
#3 0xb6118058 in QDBusObjectPath::check (this=0xbfffe4ec) at
/home/tmacieir/src/troll/qt-4.7/src/dbus/qdbusextratypes.cpp:50
#4 0xb71cb638 in QDBusObjectPath::operator= (this=0xbfffe4ec, _path=...)
at
/home/tmacieir/obj/troll/qt-4.6/include/QtDBus/../../../../../src/troll/qt-4.6/src/dbus/qdbusextratypes.h:92
#5 0xb71ccd60 in QDBusReply<QDBusObjectPath>::operator= (this=0xbfffe4dc,
reply=...)
at
/home/tmacieir/obj/troll/qt-4.6/include/QtDBus/../../../../../src/troll/qt-4.6/src/dbus/qdbusreply.h:75
#6 0xb71cca24 in QDBusReply<QDBusObjectPath>::operator= (this=0xbfffe4dc,
pcall=...)
at
/home/tmacieir/obj/troll/qt-4.6/include/QtDBus/../../../../../src/troll/qt-4.6/src/dbus/qdbusreply.h:87
#7 0xb71cc47c in QDBusReply<QDBusObjectPath>::QDBusReply (this=0xbfffe4dc,
reply=...)
at
/home/tmacieir/obj/troll/qt-4.6/include/QtDBus/../../../../../src/troll/qt-4.6/src/dbus/qdbusreply.h:91
#8 0xb722cda9 in getComponent (componentUnique=...) at
/home/tmacieir/src/kde4/KDE/kdelibs/kdeui/shortcuts/kglobalaccel.cpp:60
Reason: in the frame 8 above, we have:
60 QDBusReply<QDBusObjectPath> reply =
kglobalaccel.getComponent(componentUnique);
But the getComponent call returns a QString, not a QDBusObjectPath.
-------------- Message: --------------
Object::connect: No such slot SystemTray::Manager::checkIdle() in
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/systemtray/core/manager.cpp:70
Partial backtrace:
#4 0xb5f67e72 in QObject::connect (sender=0x84ebc10, signal=0xa6cdbd81
"timeout()", receiver=0x84c57a8, method=0x84c3b08 "checkIdle()",
type=AutoConnection) at
/home/tmacieir/src/troll/qt-4.7/src/corelib/kernel/qobject.cpp:2579
#5 0xa6cb3d0e in SystemTray::Manager::Manager (this=0x84c57a8)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/systemtray/core/manager.cpp:70
#6 0xa6cce19c in SystemTray::Applet::Applet (this=0x84f6448, parent=0x0,
arguments=...)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/systemtray/ui/applet.cpp:81
#7 0xa6cd2609 in KPluginFactory::createInstance<SystemTray::Applet, QObject>
(parentWidget=0x0, parent=0x0, args=...)
at /home/tmacieir/KDE4-4.6/include/kpluginfactory.h:461
#8 0xb6fb2fe1 in KPluginFactory::create (this=0x8495690, iface=0xb7d7ede0
"Plasma::Applet", parentWidget=0x0, parent=0x0, args=..., keyword=
...) at
/home/tmacieir/src/kde4/KDE/kdelibs/kdecore/util/kpluginfactory.cpp:191
#9 0xb7bdbb4a in KPluginFactory::create<Plasma::Applet> (this=0x8495690,
parentWidget=0x0, parent=0x0, keyword=..., args=...)
at /home/tmacieir/src/kde4/KDE/kdelibs/kdecore/util/kpluginfactory.h:515
-------------- Message: --------------
QGraphicsLinearLayout::removeAt: invalid index 0
Partial backtrace:
#3 0xb6a1a996 in QGraphicsLinearLayout::removeAt (this=0x849f5b8, index=0)
at
/home/tmacieir/src/troll/qt-4.7/src/gui/graphicsview/qgraphicslinearlayout.cpp:330
#4 0xb7c388ab in Plasma::PopupAppletPrivate::popupConstraintsEvent
(this=0x8172000, constraints=...)
at /home/tmacieir/src/kde4/KDE/kdelibs/plasma/popupapplet.cpp:223
#5 0xb7bcb195 in Plasma::Applet::flushPendingConstraintsEvents
(this=0x831ec60)
at /home/tmacieir/src/kde4/KDE/kdelibs/plasma/applet.cpp:1252
#6 0xb7bfd408 in Plasma::Corona::loadLayout (this=0x8085cc8, configName=...)
at /home/tmacieir/src/kde4/KDE/kdelibs/plasma/corona.cpp:498
#7 0xb7bfc8d3 in Plasma::Corona::initializeLayout (this=0x8085cc8,
configName=...)
at /home/tmacieir/src/kde4/KDE/kdelibs/plasma/corona.cpp:340
#8 0xb7fc2f97 in PlasmaApp::corona (this=0x8081e08) at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/desktop/shell/plasmaapp.cpp:674
#9 0xb7fc5309 in PlasmaApp::setupDesktop (this=0x8081e08)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/desktop/shell/plasmaapp.cpp:276
#10 0xb7fc56c5 in PlasmaApp::qt_metacall (this=0x8081e08, _c=InvokeMetaMethod,
_id=10, _a=0xbfffddc0)
at
/home/tmacieir/obj/kde4/KDE/kdebase/workspace/plasma/desktop/shell/plasmaapp.moc:136
#11 0xb5f54c82 in QMetaObject::metacall (object=0x8081e08,
cl=InvokeMetaMethod, idx=37, argv=0xbfffddc0)
at /home/tmacieir/src/troll/qt-4.7/src/corelib/kernel/qmetaobject.cpp:237
#12 0xb5f699c8 in QMetaObject::activate (sender=0x8261610, m=0xb60b6360,
local_signal_index=0, argv=0x0)
at /home/tmacieir/src/troll/qt-4.7/src/corelib/kernel/qobject.cpp:3299
#13 0xb5f72c71 in QSingleShotTimer::timeout (this=0x8261610) at .moc/debug-
shared/qtimer.moc:82
Code:
222 if (icon && !icon->icon().isNull() && lay) {
223 lay->removeAt(0);
224 }
-------------- Message: (Qt 4.7 debug) --------------
QGraphicsLayout::addChildLayoutItem: Plasma::IconWidget "" in wrong parent;
moved to correct parent
Partial backtrace:
#2 0xb6a17f76 in QGraphicsLayoutPrivate::addChildLayoutItem (this=0x890bd38,
layoutItem=0x89a2eb8)
at
/home/tmacieir/src/troll/qt-4.7/src/gui/graphicsview/qgraphicslayout_p.cpp:170
#3 0xb6a1a6dc in QGraphicsLinearLayout::insertItem (this=0x88fd1d8, index=-1,
item=0x89a2eb8)
at
/home/tmacieir/src/troll/qt-4.7/src/gui/graphicsview/qgraphicslinearlayout.cpp:279
#4 0xb7bd68e1 in QGraphicsLinearLayout::addItem (this=0x88fd1d8,
item=0x89a2eb8)
at
/home/tmacieir/obj/troll/qt-4.6/include/QtGui/../../../../../src/troll/qt-4.6/src/gui/graphicsview/qgraphicslinearlayout.h:68
#5 0xb7c2bbfb in Plasma::ExtenderItemPrivate::updateToolBox (this=0x890b630)
at
/home/tmacieir/src/kde4/KDE/kdelibs/plasma/extenders/extenderitem.cpp:780
#6 0xb7c29be4 in Plasma::ExtenderItem::addAction (this=0x8993478, name=...,
action=0x89b0da0)
at
/home/tmacieir/src/kde4/KDE/kdelibs/plasma/extenders/extenderitem.cpp:404
#7 0xb7c25a12 in Plasma::ExtenderGroup::ExtenderGroup (this=0x8993478,
parent=0x898e178, groupId=0)
at
/home/tmacieir/src/kde4/KDE/kdelibs/plasma/extenders/extendergroup.cpp:52
#8 0xb101fa4d in Notifications::createJobGroups (this=0x89b2de8)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/notifications/ui/notifications.cpp:386
#9 0xb1020dca in Notifications::configChanged (this=0x89b2de8)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/notifications/ui/notifications.cpp:142
#10 0xb102110d in Notifications::init (this=0x89b2de8)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/notifications/ui/notifications.cpp:126
#11 0xa6cc166b in SystemTray::PlasmoidTask::createWidget (this=0x84fa530,
host=0x84f6448)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtask.cpp:123
The item in question is a Plasma::IconWidget, created in
plasma/extenders/extenderitem.cpp:774 as such:
774 IconWidget *icon = new IconWidget(q);
Where q is a Plasma::ExtenderGroup. The new parent is a QGraphicsWidget.
Neither object have names.
-------------- Message: (just a debug, but happens too often) --------------
plasma-desktop(23156)/plasma TaskManager::GroupManagerPrivate::removeTask:
invalid item
Partial backtrace:
#7 0xa6e3595f in TaskManager::GroupManagerPrivate::removeTask
(this=0x80e5768, task=...)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/libs/taskmanager/groupmanager.cpp:314
#8 0xa6e36415 in TaskManager::GroupManagerPrivate::actuallyReloadTasks
(this=0x80e5768)
at
/home/tmacieir/src/kde4/KDE/kdebase/workspace/libs/taskmanager/groupmanager.cpp:178
#9 0xa6e36ae6 in TaskManager::GroupManager::qt_metacall (this=0x80f27e8,
_c=InvokeMetaMethod, _id=11, _a=0xbfffddc0)
at
/home/tmacieir/obj/kde4/KDE/kdebase/workspace/libs/taskmanager/groupmanager.moc:106
#10 0xb5f54c82 in QMetaObject::metacall (object=0x80f27e8,
cl=InvokeMetaMethod, idx=15, argv=0xbfffddc0)
at /home/tmacieir/src/troll/qt-4.7/src/corelib/kernel/qmetaobject.cpp:237
#11 0xb5f699c8 in QMetaObject::activate (sender=0x80e57a0, m=0xb60b7764,
local_signal_index=0, argv=0x0)
at /home/tmacieir/src/troll/qt-4.7/src/corelib/kernel/qobject.cpp:3299
#12 0xb5fcc21b in QTimer::timeout (this=0x80e57a0) at
/home/tmacieir/obj/troll/qt-4.7/src/corelib/.moc/debug-
shared/moc_qtimer.cpp:134
The 'item' variable is 0 at frame 7.
The task in question is a Konqueror window I have open. There's nothing
special about it.
--
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
Senior Product Manager - Nokia, Qt Development Frameworks
PGP/GPG: 0x6EF45358; fingerprint:
E067 918B B660 DBD1 105C 966C 33F5 F005 6EF4 5358
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