https://bugs.kde.org/show_bug.cgi?id=463711
Nate Graham <n...@kde.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Resolution|WAITINGFORINFO |---
Keywords| |wayland
Component|Panel |generic-performance
Flags|X11? |
Status|NEEDSINFO |CONFIRMED
--- Comment #8 from Nate Graham <n...@kde.org> ---
I've just started experiencing this myself, I believe. I'm pasting gdb
backtrace of what Plasma was doing when it happened:
#0 __GI___libc_read (nbytes=16384, buf=0x708cfa8, fd=0) at
../sysdeps/unix/sysv/linux/read.c:26
#1 __GI___libc_read (fd=fd@entry=0, buf=buf@entry=0x708cfa8,
nbytes=nbytes@entry=16384)
at ../sysdeps/unix/sysv/linux/read.c:24
#2 0x00007f3f83c2144d in read (__nbytes=16384, __buf=0x708cfa8,
__fd=<optimized out>)
at /usr/include/bits/unistd.h:38
#3 qt_safe_read (maxlen=16384, data=0x708cfa8, fd=<optimized out>)
at
../../include/QtCore/5.15.7/QtCore/private/../../../../../src/corelib/kernel/qcore_unix_p.h:283
#4 QFSFileEnginePrivate::readFdFh(char*, long long)
(this=0x77913d0, data=0x708cfa8 " E\202\a", len=16384) at
io/qfsfileengine.cpp:684
#5 0x00007f3f83bf184e in QFileDevice::readData(char*, long long)
(this=this@entry=0x7ffc08c73fc0, data=0x708cfa8 " E\202\a",
len=len@entry=16384) at io/qfiledevice.cpp:461
#6 0x00007f3f83bf8b95 in QIODevicePrivate::read(char*, long long, bool)
(this=0x48d2d70, data=data@entry=0x7ffc08c73d87 "",
maxSize=maxSize@entry=1, peeking=peeking@entry=false) at io/qiodevice.cpp:1129
#7 0x00007f3f83bf9010 in QIODevice::read(char*, long long)
(this=this@entry=0x7ffc08c73fc0, data=data@entry=0x7ffc08c73d87 "",
maxSize=maxSize@entry=1)
at io/qiodevice.cpp:1053
#8 0x00007f3f83bf9168 in QIODevice::readLineData(char*, long long)
(this=this@entry=0x7ffc08c73fc0, data=data@entry=0x7d5d368 "",
maxSize=maxSize@entry=16384)
at io/qiodevice.cpp:1518
#9 0x00007f3f83bf25be in QFileDevice::readLineData(char*, long long)
(this=0x7ffc08c73fc0, data=0x7d5d368 "", maxlen=16384) at
io/qfiledevice.cpp:438
#10 0x00007f3f83bf9851 in QIODevice::readLine(char*, long long)
(this=this@entry=0x7ffc08c73fc0, data=0x7d5d368 "", maxSize=16384,
maxSize@entry=16385)
at io/qiodevice.cpp:1402
#11 0x00007f3f83bf9bb3 in QIODevice::readLine(long long)
(this=this@entry=0x7ffc08c73fc0, maxSize=2147483621, maxSize@entry=0) at
io/qiodevice.cpp:1475
#12 0x00007f3f849b90af in (anonymous
namespace)::readUntilDesktopEntryGroup(QFile&, QString const&, int&) (file=...,
path=..., lineNr=@0x7ffc08c73f84: 86478990)
at /home/nate/kde/src/kcoreaddons/src/lib/plugin/desktopfileparser.cpp:190
#13 0x00007f3f849bbaf3 in DesktopFileParser::convert(QString const&,
QStringList const&, QJsonObject&, QString*, QStringList const&)
(src=..., serviceTypes=..., json=...,
libraryPath=libraryPath@entry=0x7ffc08c74058, serviceTypesSearchPaths=...) at
/home/nate/kde/src/kcoreaddons/src/lib/plugin/desktopfileparser.cpp:602
#14 0x00007f3f849b000c in KPluginMetaData::loadFromDesktopFile(QString const&,
QStringList const&)
(this=0x7ffc08c740e0, file=..., serviceTypes=...)
at /home/nate/kde/src/kcoreaddons/src/lib/plugin/kpluginmetadata.cpp:249
#15 0x00007f3f849b0200 in KPluginMetaData::fromDesktopFile(QString const&,
QStringList const&)
(file=..., serviceTypes=...)
at /home/nate/kde/src/kcoreaddons/src/lib/plugin/kpluginmetadata.cpp:242
#16 0x00007f3f86762744 in
KPackage::PackagePrivate::createPackageMetadata(QString const&)
(this=0x3a25560, path=<optimized out>) at
/usr/include/qt5/QtCore/qstringbuilder.h:147
#17 0x00007f3f867636ed in KPackage::Package::metadata() const
(this=0x7ffc08c742b0)
at /home/nate/kde/src/kpackage/src/kpackage/package.cpp:224
#18 0x00007f3f8676538a in KPackage::Package::setPath(QString const&)
(this=this@entry=0x7ffc08c742b0, path=...)
at /home/nate/kde/src/kpackage/src/kpackage/package.cpp:560
#19 0x00007f3f2f57e315 in MediaProxy::setSource(QString const&)
(this=0x22a6410, url=<optimized out>)
at
/home/nate/kde/src/plasma-workspace/wallpapers/image/plugin/utils/mediaproxy.cpp:81
#20 0x00007f3f85b0e3ab in QQmlPropertyData::writeProperty(QObject*, void*,
QFlags<QQmlPropertyData::WriteFlag>) const (flags=..., value=0x7ffc08c74318,
target=<optimized out>, this=0x7f3f2816e048)
at
../../include/QtQml/5.15.7/QtQml/private/../../../../../src/qml/qml/qqmlpropertydata_p.h:391
#21 GenericBinding<10>::doStore<QString>(QString, QQmlPropertyData const*,
QFlags<QQmlPropertyData::WriteFlag>) const (flags=..., pd=0x7f3f2816e048,
value=..., this=0x22f9b40) at qml/qqmlbinding.cpp:342
#22 GenericBinding<10>::write(QV4::Value const&, bool,
QFlags<QQmlPropertyData::WriteFlag>)
(this=0x22f9b40, result=..., isUndefined=<optimized out>, flags=...) at
qml/qqmlbinding.cpp:323
#23 0x00007f3f85b0ec46 in
QQmlNonbindingBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&,
QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&)
(this=0x22f9b40, watcher=..., flags=..., scope=<optimized out>) at
qml/qqmlbinding.cpp:258
#24 0x00007f3f85b0c5b4 in
QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>)
(this=0x22f9b40, flags=...) at qml/qqmlbinding.cpp:194
#25 0x00007f3f85ae93ff in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*,
void**)
(endpoint=<optimized out>, a=0x0) at qml/qqmlnotifier.cpp:104
#26 0x00007f3f83cdb900 in doActivate<false>(QObject*, int, void**)
(sender=0x2191660, signal_index=4, argv=0x0) at kernel/qobject.cpp:3811
#27 0x00007f3f83cd6bb7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**)
(sender=sender@entry=0x2191660, m=m@entry=0x7f3f2f58d6c0
<ImageBackend::staticMetaObject>,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at
kernel/qobject.cpp:3979
#28 0x00007f3f2f561ab3 in ImageBackend::imageChanged()
(this=this@entry=0x2191660)
at
/home/nate/kde/build/plasma-workspace/wallpapers/image/plugin/plasma_wallpaper_imageplugin_static_autogen/EWIEGA46WW/moc_imagebackend.cpp:488
#29 0x00007f3f2f5671f7 in ImageBackend::nextSlide() (this=0x2191660)
at
/home/nate/kde/src/plasma-workspace/wallpapers/image/plugin/imagebackend.cpp:458
#30 0x00007f3f83cdbc26 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0x7ffc08c75fe0, r=<optimized out>, this=0x2163dc0)
at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#31 doActivate<false>(QObject*, int, void**) (sender=0x21916d0, signal_index=3,
argv=0x7ffc08c75fe0)
at kernel/qobject.cpp:3919
#32 0x00007f3f83cd6bb7 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**)
(sender=<optimized out>, m=m@entry=0x7f3f83f6d580
<QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0,
argv=argv@entry=0x7ffc08c75fe0) at kernel/qobject.cpp:3979
#33 0x00007f3f83cdefae in QTimer::timeout(QTimer::QPrivateSignal)
(this=<optimized out>, _t1=...)
at .moc/moc_qtimer.cpp:205
#34 0x00007f3f83cd2d55 in QObject::event(QEvent*) (this=0x21916d0,
e=0x7ffc08c76140)
at kernel/qobject.cpp:1369
#35 0x00007f3f84baed12 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x21916d0, e=0x7ffc08c76140) at
kernel/qapplication.cpp:3637
#36 0x00007f3f83ca8278 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x21916d0, event=0x7ffc08c76140) at
kernel/qcoreapplication.cpp:1064
#37 0x00007f3f83cf8711 in QTimerInfoList::activateTimers() (this=0x185eaf0)
at kernel/qtimerinfo_unix.cpp:643
#38 0x00007f3f83cf9034 in timerSourceDispatch (source=<optimized out>)
at kernel/qeventdispatcher_glib.cpp:183
#39 idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized
out>)
at kernel/qeventdispatcher_glib.cpp:230
#40 0x00007f3f82eb0cbf in g_main_dispatch (context=0x7f3f6c005010) at
../glib/gmain.c:3444
#41 g_main_context_dispatch (context=0x7f3f6c005010) at ../glib/gmain.c:4162
#42 0x00007f3f82f06598 in g_main_context_iterate.constprop.0
(context=0x7f3f6c005010, block=1, dispatch=1, self=<optimized out>) at
../glib/gmain.c:4238
#43 0x00007f3f82eadf40 in g_main_context_iteration (context=0x7f3f6c005010,
may_block=1)
at ../glib/gmain.c:4303
#44 0x00007f3f83cf938a in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x185e8b0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#45 0x00007f3f83ca6cca in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffc08c763e0, flags=..., flags@entry=...)
at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#46 0x00007f3f83caed92 in QCoreApplication::exec() ()
at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#47 0x00007f3f8415fbe0 in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1863
#48 0x00007f3f84baec89 in QApplication::exec() () at
kernel/qapplication.cpp:2829
#49 0x0000000000423dd9 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>)
at /home/nate/kde/src/plasma-workspace/shell/main.cpp:235
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