SOLVED Plasma 6 crashes

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

[Administrator note: this post, and the first 3 responses, were originally attached to the unrelated topic Plasma 6 upgrade blocked, should I mask it?. -Hu]

i have tried to install plasma 6 two times, compilation and installation completed successfully both times, but on reboot kwin segfaults, plasmashell segfaults, never has been able to login into kde with wayland or X. I used a hardened profile. I never could undestand and fix the segfaults.

At last I masked plasma 6 and went back to plasma 5.
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asturm · Developer Joined: 05 Apr 2007 Posts: 9271

No logs?

Hu · Administrator Joined: 06 Mar 2007 Posts: 22649

That sounds like a different problem entirely. This thread was about users unable to satisfy Portage's dependency resolver. tranquilcool's problem is that the applications built successfully, but did not work. tranquilcool: are you looking to solve this problem or only to report that you are dissatisfied with your experience with Plasma 6? If you want to solve the problem, I will move these posts to a separate thread.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

Hu · Administrator Joined: 06 Mar 2007 Posts: 22649

Split as offered. However, as asturm noted, you have not provided anything we could use to help you, so there is currently no way to make progress on solving this.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

asturm · Developer Joined: 05 Apr 2007 Posts: 9271

It's okay until Plasma 5 will be dropped from Portage.

Maybe you want to at least supply your emerge --info for a quick check?

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

emerge --info

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

[uninstall ] kde-plasma/plasma-meta-5.27.11-r1:5::gentoo USE="bluetooth browser-integration crash-handler crypt cups desktop-portal display-manager elogind gtk kwallet legacy-systray networkmanager pulseaudio sddm smart wallpapers -accessibility -colord -discover (-firewall) -flatpak -grub -handbook -plymouth -sdk -systemd -thunderbolt"
[blocks b ] kde-plasma/plasma-meta:5 ("kde-plasma/plasma-meta:5" is soft blocking kde-plasma/plasma-meta-6.1.1)
[blocks B ] kde-frameworks/kio:5[-kf6compat(-)] ("kde-frameworks/kio:5[-kf6compat(-)]" is soft blocking kde-apps/kio-extras-24.05.1)
[blocks B ] kde-frameworks/kwallet:5[-kf6compat(-)] ("kde-frameworks/kwallet:5[-kf6compat(-)]" is soft blocking kde-frameworks/kwallet-6.3.0)
[blocks B ] kde-frameworks/kglobalaccel:5[-kf6compat(-)] ("kde-frameworks/kglobalaccel:5[-kf6compat(-)]" is soft blocking kde-plasma/kglobalacceld-6.1.1)
[blocks B ] kde-frameworks/kguiaddons:5[-kf6compat(-)] ("kde-frameworks/kguiaddons:5[-kf6compat(-)]" is soft blocking kde-frameworks/kguiaddons-6.3.0)
[blocks B ] kde-apps/kdegraphics-mobipocket:5 ("kde-apps/kdegraphics-mobipocket:5" is soft blocking kde-apps/kdegraphics-mobipocket-24.05.1)

this is the relevant, I suppose, part of the blocks that I resolved before installing plasma 6.
now kwin crash is on xwayland/xwaylandvideobrid, after which plasmashell segfaults on kspashqml

any help is appreciated. thank you.
_________________
this is a strange strange world.

sam_ · Developer Joined: 14 Aug 2020 Posts: 1961

Could you try get some error output from logs / output when running plasmashell in the terminal?

We can hopefully help you then attach gdb.

FWIW, I've not heard of any other crashes, even on eccentric setups, so while I fully believe you're having issues, it does mean will need your help to get to the bottom of it.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

Helmering · n00b Joined: 13 Dec 2011 Posts: 68 Location: Italy

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).
Jun 28 20:27:31 wild kernel: QQuickPixmapRea[3862]: segfault at 0 ip 0000000000000000 sp 00007f27d3ffe518 error 14 in ksplashqml[55b681bd4000+5000] likely on CPU 3 (core 3, socket 1)
Jun 28 20:27:31 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:27:33 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:27:33 wild last message buffered 4 times
Jun 28 20:27:34 wild org_kde_powerdevil: Initializing libddcutil. ddcutil version: 2.1.4, shared library: /usr/lib64/libddcutil.so.5.1.2
Jun 28 20:27:34 wild org_kde_powerdevil: Options passed from client:
Jun 28 20:27:34 wild org_kde_powerdevil: Applying combined options:
Jun 28 20:27:34 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:27:34 wild last message buffered 4 times
Jun 28 20:27:34 wild org_kde_powerdevil: Library initialization complete.
Jun 28 20:27:34 wild org.kde.powerdevil.discretegpuhelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:27:34 wild org.kde.powerdevil.chargethresholdhelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:27:34 wild org.kde.powerdevil.backlighthelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:27:36 wild kernel: plasmashell[4211]: segfault at 0 ip 0000000000000000 sp 00007ffc3d939c88 error 14 in plasmashell[55af048ad000+2b000] likely on CPU 2 (core 2, socket 1)
Jun 28 20:27:36 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:27:41 wild kernel: [drm] PCIE gen 3 link speeds already enabled
Jun 28 20:27:41 wild kernel: amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).

this is what I ge with plasma-X11
_________________
this is a strange strange world.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

[drm] PCIE gen 3 link speeds already enabled
Jun 28 20:27:19 wild kernel: amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).
Jun 28 20:27:31 wild kernel: QQuickPixmapRea[3862]: segfault at 0 ip 0000000000000000 sp 00007f27d3ffe518 error 14 in ksplashqml[55b681bd4000+5000] likely on CPU 3 (core 3, socket 1)
Jun 28 20:27:31 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:27:33 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:27:33 wild last message buffered 4 times
Jun 28 20:29:23 wild org_kde_powerdevil: Initializing libddcutil. ddcutil version: 2.1.4, shared library: /usr/lib64/libddcutil.so.5.1.2
Jun 28 20:29:23 wild org_kde_powerdevil: Options passed from client:
Jun 28 20:29:23 wild org_kde_powerdevil: Applying combined options:
Jun 28 20:29:23 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:29:23 wild last message buffered 4 times
Jun 28 20:29:24 wild org_kde_powerdevil: Library initialization complete.
Jun 28 20:29:24 wild org.kde.powerdevil.discretegpuhelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:29:24 wild org.kde.powerdevil.chargethresholdhelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:29:24 wild org.kde.powerdevil.backlighthelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:29:24 wild kernel: [drm] PCIE gen 3 link speeds already enabled
Jun 28 20:29:24 wild kernel: amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).
Jun 28 20:29:26 wild kernel: plasmashell[5071]: segfault at 0 ip 0000000000000000 sp 00007ffef17c6888 error 14 in plasmashell[5649801c6000+2b000] likely on CPU 2 (core 2, socket 1)
Jun 28 20:29:26 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:29:37 wild kernel: [drm] PCIE gen 3 link speeds already enabled
Jun 28 20:29:37 wild kernel: amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).
Jun 28 20:29:52 wild org_kde_powerdevil: libddcutil terminating.
Jun 28 20:29:52 wild kernel: [drm] PCIE gen 3 link speeds already enabled
Jun 28 20:29:52 wild kernel: amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).
Jun 28 20:29:54 wild kernel: lockdown_is_locked_down: 5 callbacks suppressed
Jun 28 20:29:54 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:29:54 wild last message buffered 2 times
Jun 28 20:30:05 wild kernel: [drm] PCIE gen 3 link speeds already enabled
Jun 28 20:30:05 wild kernel: amdgpu 0000:03:00.0: amdgpu: PCIE GART of 256M enabled (table at 0x000000F400000000).
Jun 28 20:30:08 wild kernel: QQuickPixmapRea[5624]: segfault at 0 ip 0000000000000000 sp 00007ff282ffc518 error 14 in ksplashqml[564db8c84000+5000] likely on CPU 1 (core 1, socket 1)
Jun 28 20:30:08 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:30:09 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:30:09 wild last message buffered 4 times
Jun 28 20:30:09 wild org_kde_powerdevil: Initializing libddcutil. ddcutil version: 2.1.4, shared library: /usr/lib64/libddcutil.so.5.1.2
Jun 28 20:30:09 wild org_kde_powerdevil: Options passed from client:
Jun 28 20:30:09 wild org_kde_powerdevil: Applying combined options:
Jun 28 20:30:09 wild kernel: xwaylandvideobr[5728]: segfault at 0 ip 0000000000000000 sp 00007ffc5315cff8 error 14 in xwaylandvideobridge[5639325a6000+8000] likely on CPU 1 (core 1, socket 1)
Jun 28 20:30:09 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:30:09 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:30:09 wild last message buffered 4 times
Jun 28 20:30:09 wild org_kde_powerdevil: Library initialization complete.
Jun 28 20:30:09 wild org.kde.powerdevil.discretegpuhelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:30:09 wild org.kde.powerdevil.chargethresholdhelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:30:09 wild org.kde.powerdevil.backlighthelper: Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8. Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead. If this causes problems, reconfigure your locale. See the locale(1) manual for more information.
Jun 28 20:30:11 wild kernel: plasmashell[6052]: segfault at 0 ip 0000000000000000 sp 00007ffceaca46f8 error 14 in plasmashell[557833f8f000+2b000] likely on CPU 2 (core 2, socket 1)
Jun 28 20:30:11 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:30:13 wild kernel: kwin_wayland[5515]: segfault at 0 ip 0000000000000000 sp 00007ffe90c028d8 error 14 in kwin_wayland[560f036c8000+4b000] likely on CPU 1 (core 1, socket 1)
Jun 28 20:30:13 wild kernel: Code: Unable to access opcode bytes at 0xffffffffffffffd6.
Jun 28 20:30:16 wild kernel: lockdown_is_locked_down: 5 callbacks suppressed
Jun 28 20:30:16 wild kernel: Lockdown: elogind-daemon: hibernation is restricted; see man kernel_lockdown.7
Jun 28 20:30:16 wild last message buffered 2 times

And this with wayland!
now I'm thinking; could it be this? "Code: Unable to access opcode bytes at 0xffffffffffffffd6"
_________________
this is a strange strange world.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

gdb plasmashell:

qt.qpa.xcb: Could not connect to display
qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin.
qta.qpa.plugin: could not load the Qt platform xcb in "" even though it is found.
this application failed to start because no Qt platform could be initialized. Reinstalling the application may fix this problem.
Available plugins are vkkhrdisplay, vnc, linuxfb, xcb, offscreen, minimal, wayland-egl, wayland.

well, just can't seem to solve this problem. took hours to install. is it driving me crazy!
_________________
this is a strange strange world.

Hu · Administrator Joined: 06 Mar 2007 Posts: 22649

Plasmashell is jumping to a null pointer, probably as a result of an improperly initialized function pointer. A stack backtrace at the time of the crash might be useful, but first you need to find how to trigger the crash under gdb.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

1] + 6492 killed plasmashell
Starting program: /usr/bin/plasmashell
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffee8dd6c0 (LWP 6597)]
[New Thread 0x7fffee0dc6c0 (LWP 6598)]
[New Thread 0x7fffec8bd6c0 (LWP 6599)]
[New Thread 0x7fffe7fff6c0 (LWP 6600)]
[New Thread 0x7fffe77fe6c0 (LWP 6601)]
[New Thread 0x7fffe6fe96c0 (LWP 6602)]
[New Thread 0x7fffe67e86c0 (LWP 6603)]
[New Thread 0x7fffe5fe76c0 (LWP 6604)]
[New Thread 0x7fffe50856c0 (LWP 6605)]
[New Thread 0x7fffca7b06c0 (LWP 6606)]
[New Thread 0x7fffc9faf6c0 (LWP 6607)]
[New Thread 0x7fffc97ae6c0 (LWP 6608)]
[New Thread 0x7fffc8fad6c0 (LWP 6609)]
[New Thread 0x7fffbc9cf6c0 (LWP 6610)]
[New Thread 0x7fffa7fff6c0 (LWP 6611)]
[New Thread 0x7fffa77fe6c0 (LWP 6612)]
[New Thread 0x7fffa6ffd6c0 (LWP 6613)]
[New Thread 0x7fffa67fc6c0 (LWP 6614)]
[New Thread 0x7fffa5ffb6c0 (LWP 6615)]
[New Thread 0x7fffa57fa6c0 (LWP 6616)]
[Thread 0x7fffa57fa6c0 (LWP 6616) exited]
[Thread 0x7fffa5ffb6c0 (LWP 6615) exited]
[Thread 0x7fffa67fc6c0 (LWP 6614) exited]
Couldn't start kglobalaccel from org.kde.kglobalaccel.service: QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name org.kde.kglobalaccel was not provided by any .service files")
[New Thread 0x7fffa67fc6c0 (LWP 6617)]
[New Thread 0x7fffa5ffb6c0 (LWP 6618)]
[New Thread 0x7fffa57fa6c0 (LWP 6619)]
[Thread 0x7fffa57fa6c0 (LWP 6619) exited]
[Thread 0x7fffa5ffb6c0 (LWP 6618) exited]
[Thread 0x7fffa67fc6c0 (LWP 6617) exited]
[New Thread 0x7fffa67fc6c0 (LWP 6620)]
kf.kirigami.platform: Failed to find a Kirigami platform plugin for style "Fusion"

Thread 1 "plasmashell" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()

This is what I get. can't fine the org.kde.kglobalaccel.service
cat: /usr/share/dbus-1/services/org.kde.kglobalaccel.service: No such file or directory
_________________
this is a strange strange world.

sam_ · Developer Joined: 14 Aug 2020 Posts: 1961

Please run the "bt" command in gdb when you're at that prompt to get the full bt.

We may need you to build plasmashell and some of kde-*/* and dev-qt/* with debug symbols (https://wiki.gentoo.org/wiki/Debugging). I appreciate your patience here.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007fde7a2fd480 in poll () from /lib64/libc.so.6
(gdb) bt
#0 0x00007fde7a2fd480 in poll () at /lib64/libc.so.6
#1 0x00007fde7d426e40 in ??? () at /usr/lib64/libKF6Crash.so.6
#2 0x00007fde7d4277a8 in KCrash::defaultCrashHandler(int) () at /usr/lib64/libKF6Crash.so.6
#3 0x00007fde7a24cbf0 in <signal handler called> () at /lib64/libc.so.6
#4 0x0000000000000000 in ??? ()
#5 0x00007fde7c8fd9a4 in ??? () at /usr/lib64/libKF6Svg.so.6
#6 0x00007fde7c8fe180 in ??? () at /usr/lib64/libKF6Svg.so.6
#7 0x00007fde7c8fd1f7 in ??? () at /usr/lib64/libKF6Svg.so.6
#8 0x00007fde7c900996 in KSvg::FrameSvg::mask() const () at /usr/lib64/libKF6Svg.so.6
#9 0x00007fde1da7cbc4 in ??? () at /usr/lib64/qt6/qml/org/kde/ksvg/libcorebindingsplugin.so
#10 0x00007fde1da7f0cf in ??? () at /usr/lib64/qt6/qml/org/kde/ksvg/libcorebindingsplugin.so
#11 0x00007fde7a9e5458 in QMetaProperty::read(QObject const*) const () at /usr/lib64/libQt6Core.so.6
#12 0x00007fde7a95c848 in QObject::property(char const*) const () at /usr/lib64/libQt6Core.so.6
#13 0x00007fde7d5387f8 in ??? () at /usr/lib64/libPlasmaQuick.so.6
#14 0x00007fde7d510ea6 in ??? () at /usr/lib64/libPlasmaQuick.so.6
#15 0x00007fde7b99f02a in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib64/libQt6Qml.so.6
#16 0x00007fde7ba560db in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) ()
at /usr/lib64/libQt6Qml.so.6
#17 0x00007fde7ba8b820 in QQmlComponentPrivate::completeCreate() () at /usr/lib64/libQt6Qml.so.6
#18 0x00007fde7d52fc7a in PlasmaQuick::SharedQmlEngine::completeInitialization(QHash<QString, QVariant> const&) () at /usr/lib64/libPlasmaQuick.so.6
#19 0x00007fde7d52fd97 in ??? () at /usr/lib64/libPlasmaQuick.so.6
#20 0x00007fde7d531f78 in PlasmaQuick::QuickViewSharedEngine::setSource(QUrl const&) () at /usr/lib64/libPlasmaQuick.so.6
#21 0x000055da50b2646a in ??? ()
#22 0x000055da50b46a99 in ??? ()
#23 0x000055da50b5b8a1 in ??? ()
#24 0x00007fde7d2306f5 in Plasma::Corona::loadLayout(QString const&) () at /usr/lib64/libPlasma.so.6
#25 0x000055da50b5c418 in ??? ()
#26 0x00007fde7a9c5214 in ??? () at /usr/lib64/libQt6Core.so.6
#27 0x00007fde7c7270e5 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) ()
at /usr/lib64/libPlasmaActivities.so.6
#28 0x00007fde7a9c5214 in ??? () at /usr/lib64/libQt6Core.so.6
#29 0x00007fde7c7444b1 in ??? () at /usr/lib64/libPlasmaActivities.so.6
#30 0x00007fde7c74ad59 in ??? () at /usr/lib64/libPlasmaActivities.so.6
#31 0x00007fde7a9c5538 in ??? () at /usr/lib64/libQt6Core.so.6
#32 0x00007fde7acefcb3 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () at /usr/lib64/libQt6DBus.so.6
#33 0x00007fde7a959774 in QObject::event(QEvent*) () at /usr/lib64/libQt6Core.so.6
#34 0x00007fde7cf94ed5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt6Widgets.so.6
--Type <RET> for more, q to quit, c to continue without paging--c
#35 0x00007fde7a9de440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt6Core.so.6
#36 0x00007fde7aa09d4b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt6Core.so.6
#37 0x00007fde7a761b7f in ??? () at /usr/lib64/libQt6Core.so.6
#38 0x00007fde78fae3ba in ??? () at /usr/lib64/libglib-2.0.so.0
#39 0x00007fde78fb1678 in ??? () at /usr/lib64/libglib-2.0.so.0
#40 0x00007fde78fb1e38 in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#41 0x00007fde7a75fd0d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt6Core.so.6
#42 0x00007fde7aa105ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt6Core.so.6
#43 0x00007fde7aa109d5 in QCoreApplication::exec() () at /usr/lib64/libQt6Core.so.6
#44 0x000055da50b07bd2 in ??? ()
#45 0x00007fde7a23724e in ??? () at /lib64/libc.so.6
#46 0x00007fde7a237309 in __libc_start_main () at /lib64/libc.so.6
#47 0x000055da50b07c85 in ??? ()
_________________
this is a strange strange world.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

sam_ · Developer Joined: 14 Aug 2020 Posts: 1961

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

hread 1 "plasmashell" received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ??? ()
#1 0x00007ffff70849a4 in ??? () at /usr/lib64/libKF6Svg.so.6
#2 0x00007ffff7085180 in ??? () at /usr/lib64/libKF6Svg.so.6
#3 0x00007ffff70841f7 in ??? () at /usr/lib64/libKF6Svg.so.6
#4 0x00007ffff7087996 in KSvg::FrameSvg::mask() const ()
at /usr/lib64/libKF6Svg.so.6
#5 0x00007fffa43d4bc4 in ??? ()
at /usr/lib64/qt6/qml/org/kde/ksvg/libcorebindingsplugin.so
#6 0x00007fffa43d70cf in ??? ()
at /usr/lib64/qt6/qml/org/kde/ksvg/libcorebindingsplugin.so
#7 0x00007ffff51a0458 in QMetaProperty::read(QObject const*) const ()
at /usr/lib64/libQt6Core.so.6
#8 0x00007ffff5117848 in QObject::property(char const*) const ()
at /usr/lib64/libQt6Core.so.6
#9 0x00007ffff7c9f7f8 in ??? () at /usr/lib64/libPlasmaQuick.so.6
#10 0x00007ffff7c77ea6 in ??? () at /usr/lib64/libPlasmaQuick.so.6
#11 0x00007ffff614702a in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () at /usr/lib64/libQt6Qml.so.6
#12 0x00007ffff61fe0db in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () at /usr/lib64/libQt6Qml.so.6
#13 0x00007ffff6233820 in QQmlComponentPrivate::completeCreate() ()
at /usr/lib64/libQt6Qml.so.6
#14 0x00007ffff7c96c7a in PlasmaQuick::SharedQmlEngine::completeInitialization(Q--Type <RET> for more, q to quit, c to continue without paging--
Hash<QString, QVariant> const&) () at /usr/lib64/libPlasmaQuick.so.6
#15 0x00007ffff7c96d97 in ??? () at /usr/lib64/libPlasmaQuick.so.6
#16 0x00007ffff7c98f78 in PlasmaQuick::QuickViewSharedEngine::setSource(QUrl const&) () at /usr/lib64/libPlasmaQuick.so.6
#17 0x00005555555a746a in ??? ()
#18 0x00005555555c7a99 in ??? ()
#19 0x00005555555de521 in ??? ()
#20 0x00007ffff5180214 in ??? () at /usr/lib64/libQt6Core.so.6
#21 0x00007ffff6ebb0e5 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) () at /usr/lib64/libPlasmaActivities.so.6
#22 0x00007ffff5180214 in ??? () at /usr/lib64/libQt6Core.so.6
#23 0x00007ffff6ed84b1 in ??? () at /usr/lib64/libPlasmaActivities.so.6
#24 0x00007ffff6eded59 in ??? () at /usr/lib64/libPlasmaActivities.so.6
#25 0x00007ffff5180538 in ??? () at /usr/lib64/libQt6Core.so.6
#26 0x00007ffff54a7cb3 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () at /usr/lib64/libQt6DBus.so.6
#27 0x00007ffff5114774 in QObject::event(QEvent*) ()
at /usr/lib64/libQt6Core.so.6
#28 0x00007ffff7716ed5 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib64/libQt6Widgets.so.6
#29 0x00007ffff5199440 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib64/libQt6Core.so.6
#30 0x00007ffff51c4d4b in QCoreApplicationPrivate::sendPostedEvents(QObject*, in--Type <RET> for more, q to quit, c to continue without paging--
t, QThreadData*) () at /usr/lib64/libQt6Core.so.6
#31 0x00007ffff4f1cb7f in ??? () at /usr/lib64/libQt6Core.so.6
#32 0x00007ffff37d23ba in ??? () at /usr/lib64/libglib-2.0.so.0
#33 0x00007ffff37d5678 in ??? () at /usr/lib64/libglib-2.0.so.0
#34 0x00007ffff37d5e38 in g_main_context_iteration ()
at /usr/lib64/libglib-2.0.so.0
#35 0x00007ffff4f1ad0d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt6Core.so.6
#36 0x00007ffff51cb5ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt6Core.so.6
#37 0x00007ffff51cb9d5 in QCoreApplication::exec() ()
at /usr/lib64/libQt6Core.so.6
#38 0x0000555555588bd2 in ??? ()
#39 0x00007ffff49f824e in ??? () at /lib64/libc.so.6
#40 0x00007ffff49f8309 in __libc_start_main () at /lib64/libc.so.6
#41 0x0000555555588c85 in ??? ()

of course you meant dev-qt/qtbase:6, not qtcore

I have reinstalled most of the kde-plasma and dev-qt packages, but I still can't get it solved.
I wonder all the success stories I read about plasma 6! I just can't get it done, I am no IT guy and this makes it even harder to fix it.
now am reinstalling with debug symbols. will report back. Thanks.
_________________
this is a strange strange world.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246

hread 1 "plasmashell" received signal SIGSTOP, Stopped (signal).
0x00007ffff4abe480 in poll () from /lib64/libc.so.6
(gdb) bt
#0 0x00007ffff4abe480 in poll () at /lib64/libc.so.6
#1 0x00007ffff7b98e40 in ??? () at /usr/lib64/libKF6Crash.so.6
#2 0x00007ffff7b997a8 in KCrash::defaultCrashHandler(int) ()
at /usr/lib64/libKF6Crash.so.6
#3 0x00007ffff4a0dbf0 in <signal handler called> () at /lib64/libc.so.6
#4 0x0000000000000000 in ??? ()
#5 0x00007ffff70849a4 in KSvg::FrameSvgPrivate::generateFrameBackground
(this=this@entry=0x5555561c3e20, frame=...)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1/src/ksvg/framesvg.cpp:613
#6 0x00007ffff7085180 in KSvg::FrameSvgPrivate::generateBackground
(this=this@entry=0x5555561c3e20, frame=...)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1/src/ksvg/framesvg.cpp:541
#7 0x00007ffff70841f7 in KSvg::FrameSvgPrivate::generateBackground
(this=0x5555561c3e20, frame=...)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1/src/ksvg/framesvg.cpp:480
#8 KSvg::FrameSvgPrivate::alphaMask (this=0x5555561c3e20)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1/src/ksvg/framesvg.cpp:480
#9 0x00007ffff7087996 in KSvg::FrameSvg::mask (this=0x5555561c32f0)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1/src/ksvg/framesvg.cpp--Type <RET> for more, q to quit, c to continue without paging--
:342
#10 0x00007fff9c42fbc4 in KSvg::FrameSvgItem::mask (this=0x555555c77340)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1/src/declarativeimports/framesvgitem.cpp:500
#11 KSvg::FrameSvgItem::qt_static_metacall
(_o=0x555555c77340, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1_build/src/declarativeimports/corebindingsplugin_autogen/include/moc_framesvgitem.cpp:486
#12 0x00007fff9c4320cf in KSvg::FrameSvgItem::qt_metacall
(this=0x555555c77340, _c=QMetaObject::ReadProperty, _id=9, _a=0x7fffffffc2b0)
at /usr/src/debug/kde-frameworks/ksvg-6.3.1/ksvg-6.3.1_build/src/declarativeimports/corebindingsplugin_autogen/include/moc_framesvgitem.cpp:538
#13 0x00007ffff51a0458 in QMetaProperty::read
(this=this@entry=0x7fffffffc3b0, object=object@entry=0x555555c77340)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qmetaobject.cpp:3734
#14 0x00007ffff5117848 in QObject::property
(this=0x555555c77340, name=<optimized out>,
name@entry=0x7ffff7cc8c5a "mask")
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4316
--Type <RET> for more, q to quit, c to continue without paging--
#15 0x00007ffff7c9f7f8 in PlasmaQuick::DialogBackground::mask
(this=<optimized out>)
at /usr/src/debug/kde-plasma/libplasma-6.1.1/libplasma-6.1.1/src/plasmaquick/private/dialogbackground_p.cpp:59
#16 0x00007ffff7c77ea6 in PlasmaQuick::DialogPrivate::updateTheme
(this=0x5555561c0320)
at /usr/src/debug/kde-plasma/libplasma-6.1.1/libplasma-6.1.1/src/plasmaquick/dialog.cpp:245
#17 0x00007ffff614702a in QQmlObjectCreator::finalize
(this=0x555555cbd9f0, interrupt=...)
at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/qml/qml/qqmlobjectcreator.cpp:1567
#18 0x00007ffff61fe0db in QQmlComponentPrivate::complete
(enginePriv=0x7fffd0006410, state=state@entry=0x5555560ab808)
at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/qml/qml/qqmlcomponent.cpp:1172
#19 0x00007ffff6233820 in QQmlComponentPrivate::completeCreate
(this=<optimized out>)
at /usr/src/debug/dev-qt/qtdeclarative-6.7.2/qtdeclarative-everywhere-src-6.7.2/src/qml/qml/qqmlcomponent.cpp:1277
#20 0x00007ffff7c96c7a in PlasmaQuick::SharedQmlEngine::completeInitialization
(this=0x7fffe000b3f0, initialProperties=<optimized out>)
at /usr/src/debug/kde-plasma/libplasma-6.1.1/libplasma-6.1.1/src/plasmaquick--Type <RET> for more, q to quit, c to continue without paging--
/sharedqmlengine.cpp:239
#21 0x00007ffff7c96d97 in PlasmaQuick::SharedQmlEnginePrivate::scheduleExecutionEnd (this=0x5555561f5000) at /usr/include/qt6/QtCore/qhash.h:836
#22 0x00007ffff7c98f78 in PlasmaQuick::QuickViewSharedEngine::setSource
(this=0x55555610ef60, url=...)
at /usr/src/debug/kde-plasma/libplasma-6.1.1/libplasma-6.1.1/src/plasmaquick/quickviewsharedengine.cpp:214
#23 PlasmaQuick::QuickViewSharedEngine::setSource
(this=this@entry=0x55555610ef60, url=...)
at /usr/src/debug/kde-plasma/libplasma-6.1.1/libplasma-6.1.1/src/plasmaquick/quickviewsharedengine.cpp:208
#24 0x00005555555a746a in DesktopView::DesktopView
(this=this@entry=0x55555610ef60, corona=corona@entry=0x5555558e2f10, targetScreen=targetScreen@entry=0x5555556cf9c0)
at /usr/src/debug/kde-plasma/plasma-workspace-6.1.1/plasma-workspace-6.1.1/shell/desktopview.cpp:65
#25 0x00005555555c7a99 in ShellCorona::addOutput
(this=0x5555558e2f10, screen=0x5555556cf9c0)
at /usr/src/debug/kde-plasma/plasma-workspace-6.1.1/plasma-workspace-6.1.1/shell/shellcorona.cpp:1397
#26 0x00005555555de521 in ShellCorona::load (this=<optimized out>)
at /usr/src/debug/kde-plasma/plasma-workspace-6.1.1/plasma-workspace-6.1.1/shell/shellcorona.cpp:834
--Type <RET> for more, q to quit, c to continue without paging--
#27 0x00007ffff5180214 in QtPrivate::QSlotObjectBase::call
(this=0x555555e74d50, r=<optimized out>, a=0x7fffffffcca0)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobjectdefs_impl.h:469
#28 doActivate<false>
(sender=0x555555d81a00, signal_index=4, argv=0x7fffffffcca0)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4086
#29 0x00007ffff6ebb0e5 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) () at /usr/lib64/libPlasmaActivities.so.6
#30 0x00007ffff5180214 in QtPrivate::QSlotObjectBase::call
(this=0x555555d9cfa0, r=<optimized out>, a=0x7fffffffcf60)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobjectdefs_impl.h:469
#31 doActivate<false>
(sender=0x555555cb7f50, signal_index=11, argv=0x7fffffffcf60)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4086
#32 0x00007ffff6ed84b1 in ??? () at /usr/lib64/libPlasmaActivities.so.6
#33 0x00007ffff6eded59 in ??? () at /usr/lib64/libPlasmaActivities.so.6
#34 0x00007ffff5180538 in doActivate<false>
(sender=0x555555d9c970, signal_index=3, argv=0x7fffffffd1f0)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/coreli--Type <RET> for more, q to quit, c to continue without paging--
b/kernel/qobject.cpp:4098
#35 0x00007ffff51383a7 in QMetaObject::activate
(sender=<optimized out>, m=m@entry=0x7ffff554c560 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffffffd1f0)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:4146
#36 0x00007ffff54a7cb3 in QDBusPendingCallWatcher::finished
(this=<optimized out>, _t1=<optimized out>)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2_build/src/dbus/DBus_autogen/include/moc_qdbuspendingcall.cpp:160
#37 0x00007ffff5114774 in QObject::event
(this=0x555555d9c970, e=0x555555d81d50)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qobject.cpp:1452
#38 0x00007ffff7716ed5 in QApplicationPrivate::notify_helper
(this=<optimized out>, receiver=0x555555d9c970, e=0x555555d81d50)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:3287
#39 0x00007ffff5199440 in QCoreApplication::notifyInternal2
(receiver=0x555555d9c970, event=0x555555d81d50)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1142
--Type <RET> for more, q to quit, c to continue without paging--
#40 0x00007ffff51994ed in QCoreApplication::sendEvent
(receiver=<optimized out>, event=<optimized out>)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1583
#41 0x00007ffff51c4d4b in QCoreApplicationPrivate::sendPostedEvents
(receiver=0x0, event_type=0, data=0x555555663ba0)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1940
#42 0x00007ffff51c4fbc in QCoreApplication::sendPostedEvents
(receiver=<optimized out>, event_type=<optimized out>)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qcoreapplication.cpp:1797
#43 0x00007ffff4f1cb7f in postEventSourceDispatch (s=0x5555556c1520)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:244
#44 0x00007ffff37d23ba in ??? () at /usr/lib64/libglib-2.0.so.0
#45 0x00007ffff37d5678 in ??? () at /usr/lib64/libglib-2.0.so.0
#46 0x00007ffff37d5e38 in g_main_context_iteration ()
at /usr/lib64/libglib-2.0.so.0
#47 0x00007ffff4f1ad0d in QEventDispatcherGlib::processEvents
(this=0x55555595acd0, flags=...)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/kernel/qeventdispatcher_glib.cpp:394
--Type <RET> for more, q to quit, c to continue without paging--
#48 0x00007ffff51cb5ca in QEventLoop::exec
(this=this@entry=0x7fffffffd5f0, flags=..., flags@entry=...)
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/global/qflags.h:34
#49 0x00007ffff51cb9d5 in QCoreApplication::exec ()
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/corelib/global/qflags.h:74
#50 0x00007ffff5705798 in QGuiApplication::exec ()
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/gui/kernel/qguiapplication.cpp:1926
#51 0x00007ffff7675289 in QApplication::exec ()
at /usr/src/debug/dev-qt/qtbase-6.7.2/qtbase-everywhere-src-6.7.2/src/widgets/kernel/qapplication.cpp:2555
#52 0x0000555555588bd2 in main (argc=<optimized out>, argv=<optimized out>)
at /usr/src/debug/kde-plasma/plasma-workspace-6.1.1/plasma-workspace-6.1.1/shell/main.cpp:188
(gdb)

Here it is!
_________________
this is a strange strange world.

sam_ · Developer Joined: 14 Aug 2020 Posts: 1961

Thanks!

I've asked someone to take a look, but while we wait for them: I wonder if you could try https://invent.kde.org/frameworks/ksvg/-/commit/74f9f9cbd226407f8cde08c5cd5a711444e2775d.patch in /etc/portage/patches/kde-frameworks/ksvg/maybe-crash-scaling.patch and then rebuild ksvg? I don't think it's going to help but it's the only commit since the last release and it touches cachedBackground which is relevant to the crash.

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1246