Bug 412797

Summary:	crashing/instability in many areas in unstable branch, seems to be related to SVGs or image loading. fixed by downgrading qt/kde to extra.
Product:	[Plasma] kwin	Reporter:	Spencer <AmpleSpencer>
Component:	aurorae	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	kde, opensource
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.16.90
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Spencer 2019-10-10 00:20:33 UTC

Application: systemsettings5 (5.16.90)

Qt Version: 5.14.0
Frameworks Version: 5.62.0
Operating System: Linux 5.3.1-arch1-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- Unusual behavior I noticed:
icons missing/offset
kvantum theme broke
lag opening some menus
crash report does not give much info
- Custom settings of the application:
kvantum theme
papirus-dark
breeze-transparent-dark

it seems like svgs are offset and that 
sorry if this is a dupe I have no idea what this would be classified as and im on the unstable branch

The crash does not seem to be reproducible.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6f172e5cc0 (LWP 196523))]

Thread 6 (Thread 0x7f6ee7916700 (LWP 200128)):
#0  0x00007f6f1c23742c in read () at /usr/lib/libc.so.6
#1  0x00007f6f19f959f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6f19fe3a41 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6f19fe5128 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6f19fe5251 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6f1c7f388c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6f1c799f4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f6f1c5c0502 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f6f1b88bef9 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f6f1c5c1676 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f6f1adeb4cf in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f6f1c2462d3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f6efb1ef700 (LWP 196808)):
#0  0x00007f6f19fe38a8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#1  0x00007f6f19fe5128 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6f19fe5251 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6f1c7f388c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f6f1c799f4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6f1c5c0502 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f6f1b88bef9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f6f1c5c1676 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f6f1adeb4cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f6f1c2462d3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f6f028d7700 (LWP 196543)):
#0  0x00007f6f1c23b9ef in poll () at /usr/lib/libc.so.6
#1  0x00007f6f19fe5180 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6f19fe5251 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6f1c7f388c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f6f1c799f4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6f1c5c0502 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f6f1b88bef9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f6f1c5c1676 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f6f1adeb4cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f6f1c2462d3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f6f0ce1a700 (LWP 196540)):
#0  0x00007f6f1c23b9ef in poll () at /usr/lib/libc.so.6
#1  0x00007f6f19fe5180 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6f19fe5251 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6f1c7f388c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f6f1c799f4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f6f1c5c0502 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f6f1b88bef9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f6f1c5c1676 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f6f1adeb4cf in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f6f1c2462d3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f6f1497d700 (LWP 196527)):
#0  0x00007f6f19fdc68f in g_source_ref () at /usr/lib/libglib-2.0.so.0
#1  0x00007f6f19fe36c2 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f6f19fe499b in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#3  0x00007f6f19fe50a6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f6f19fe5251 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f6f1c7f388c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f6f1c799f4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f6f1c5c0502 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f6f1ca42b28 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f6f1c5c1676 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f6f1adeb4cf in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f6f1c2462d3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f6f172e5cc0 (LWP 196523)):
[KCrash Handler]
#6  0x00007f6f1c182f25 in raise () at /usr/lib/libc.so.6
#7  0x00007f6f1c16c897 in abort () at /usr/lib/libc.so.6
#8  0x00007f6f1c1c6258 in __libc_message () at /usr/lib/libc.so.6
#9  0x00007f6f1c1cd77a in  () at /usr/lib/libc.so.6
#10 0x00007f6f1c1cf59d in _int_free () at /usr/lib/libc.so.6
#11 0x00007f6f00b4587c in  () at /usr/lib/qt/qml/org/kde/kwin/decoration/libdecorationplugin.so
#12 0x00007f6f00b43a34 in  () at /usr/lib/qt/qml/org/kde/kwin/decoration/libdecorationplugin.so
#13 0x00007f6f1b84b5e7 in  () at /usr/lib/libQt5Qml.so.5
#14 0x00007f6f1b84cb90 in  () at /usr/lib/libQt5Qml.so.5
#15 0x00007f6f1b84935c in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#16 0x00007f6f1b8232cd in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#17 0x00007f6f1b7cb46e in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#18 0x00007f6f1c7d0a65 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007f6f1b7e6408 in  () at /usr/lib/libQt5Qml.so.5
#20 0x00007f6f1c7d0eee in  () at /usr/lib/libQt5Core.so.5
#21 0x00007f6f1c7cb5d0 in QObject::destroyed(QObject*) () at /usr/lib/libQt5Core.so.5
#22 0x00007f6f1c7cf2b7 in QObject::~QObject() () at /usr/lib/libQt5Core.so.5
#23 0x00007f6ee8251f29 in  () at /usr/lib/qt/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#24 0x00007f6f1c7c8a80 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#25 0x00007f6f1d2c8472 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#26 0x00007f6f1d2d1cf9 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007f6f1c79b3e2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#28 0x00007f6f1c79dc46 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#29 0x00007f6f1c7f4224 in  () at /usr/lib/libQt5Core.so.5
#30 0x00007f6f19fe33fe in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#31 0x00007f6f19fe5211 in  () at /usr/lib/libglib-2.0.so.0
#32 0x00007f6f19fe5251 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#33 0x00007f6f1c7f3870 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#34 0x00007f6f1c799f4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#35 0x00007f6f1c7a1f56 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#36 0x000055ea305e7475 in  ()
#37 0x00007f6f1c16e153 in __libc_start_main () at /usr/lib/libc.so.6
#38 0x000055ea305e74fe in _start ()
[Inferior 1 (process 196523) detached]

Possible duplicates by query: bug 412774, bug 412692, bug 412691, bug 412367, bug 412300.

Reported using DrKonqi

Comment 1 Spencer 2019-10-10 00:27:12 UTC

this was fixed after downgrading qt so it is most likely a qt issue

Comment 2 Mathieu Jobin 2021-01-02 22:55:27 UTC

I have a hardtime believing downgrading Qt helped back then.
but anyway, Qt 5.14.2 is now mainstream on Kubuntu 20.10
I would suggest you try again

Also kvantum are often rarely of a very polished quality.
I am guessing this might be a problem Kvantum

I am closing this, but please do reopen if you can reproduce on a more recent system.