https://bugs.kde.org/show_bug.cgi?id=465441
Bug ID: 465441
Summary: plasmashell leaks memory after each resume (currently
around 23 GB) [with heaptrack]
Classification: Plasma
Product: plasmashell
Version: 5.26.5
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: generic-performance
Assignee: plasma-b...@kde.org
Reporter: szots...@gmail.com
Target Milestone: 1.0
Created attachment 156038
--> https://bugs.kde.org/attachment.cgi?id=156038&action=edit
23 GB leak
Plasmashell, after 3-4 sleep resume cycles, starts leaking memory. In the first
3-4 cycles just some hundred MBs but then after +5 GB, then +15 GB.
Heaptrack shows the following backtrace as one of the culprits:
main in plasmashell
QCoreApplication::exec() in libQt5Core.so.5
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) in libQt5Core.so.5
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) in
libQt5Core.so.5
g_main_context_iteration in libglib-2.0.so.0
g_main_context_iterate in libglib-2.0.so.0
g_main_context_dispatch in libglib-2.0.so.0
g_main_dispatch in libglib-2.0.so.0
postEventSourceDispatch in libQt5Core.so.5
QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) in
libQt5Core.so.5
QCoreApplication::notifyInternal2(QObject*, QEvent*) in libQt5Core.so.5
QApplicationPrivate::notify_helper(QObject*, QEvent*) in libQt5Widgets.so.5
QObject::event(QEvent*) in libQt5Core.so.5
PlasmaDesktopTheme::syncWindow() in org.kde.desktop.so
QMetaObject::Connection QObject::connect<void (QQuickWindow::*)(), void
(PlasmaDesktopTheme::*)()>(QtPrivate::FunctionPointer<void
(QQuickWindow::*)()>::Object const*, void (QQuickWindow::*)(),
QtPrivate::FunctionPointer<void (PlasmaDesktopTheme::*)()>::Object const*, void
(PlasmaDesktopTheme::*)(), Qt::ConnectionType) in org.kde.desktop.so
QObject::connectImpl(QObject const*, void**, QObject const*, void**,
QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject
const*) in libQt5Core.so.5
QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**,
QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject
const*) in libQt5Core.so.5
According to it, the leaking line is plasmadesktoptheme.cpp:231:
if (qw) {
connect(qw, &QQuickWindow::sceneGraphInitialized, this,
&PlasmaDesktopTheme::syncWindow);
}
Heaptrack file:
https://mega.nz/file/lRJFmSCC#olTMN_Kqf8Cv1l2OlKDzZ_lYoQSWkSisL2JGQ_z7j3I
Please, take a look whether you can find other problems, too. Thank you!
Operating System: openSUSE Tumbleweed 20230130
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 6.1.8-1-default (64-bit)
Graphics Platform: X11
Memory: 78.5 GiB of RAM
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