https://bugs.kde.org/show_bug.cgi?id=388644
Bug ID: 388644
Summary: Kwin: Crash after login to Plasma-Wayland
Product: kwin
Version: 5.11.5
Platform: Archlinux Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: m...@rainer-finke.de
Target Milestone: ---
Sometimes Kwin has a segmentation fault right after the login to Plasma-Wayland
(maybe in 20% of the logins, but sometimes in a row several times and then it
is ok again for several logins). I had this issue with my AMD GPU.
Linux 4.14.12
Plasma 5.11.5
KDE Frameworks 5.41
Qt 5.10
$ sudo echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope
[sudo] Passwort für rainer:
0
[rainer@gd1 ~]$ sudo gdb --pid `pidof kwin_wayland` 2>&1 | tee kwin2.gdb
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Attaching to process 733
[New LWP 734]
[New LWP 735]
[New LWP 736]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007f7d5fdd0402 in do_lookup_x () from /lib64/ld-linux-x86-64.so.2
(gdb) continue
Continuing.
[New Thread 0x7f7d359bd700 (LWP 760)]
[New Thread 0x7f7d34e69700 (LWP 761)]
[New Thread 0x7f7d27fff700 (LWP 762)]
[New Thread 0x7f7d277fe700 (LWP 763)]
[New Thread 0x7f7d26ffd700 (LWP 764)]
[New Thread 0x7f7d267fc700 (LWP 765)]
[New Thread 0x7f7d25ffb700 (LWP 766)]
[New Thread 0x7f7d257fa700 (LWP 767)]
[New Thread 0x7f7d24ff9700 (LWP 769)]
[New Thread 0x7f7d03fff700 (LWP 803)]
[New Thread 0x7f7d03656700 (LWP 806)]
[New Thread 0x7f7d019d0700 (LWP 807)]
[New Thread 0x7f7d00fc9700 (LWP 808)]
[New Thread 0x7f7cf3fff700 (LWP 809)]
[New Thread 0x7f7cf37fe700 (LWP 810)]
[New Thread 0x7f7c66195700 (LWP 1171)]
Thread 1 "kwin_wayland" received signal SIGSEGV, Segmentation fault.
0x00007f7d56510bbc in ?? () from /usr/lib/libwayland-server.so.0
(gdb) bt
#0 0x00007f7d56510bbc in () at /usr/lib/libwayland-server.so.0
#1 0x00007f7d56515619 in () at /usr/lib/libwayland-server.so.0
#2 0x00007f7d56510cff in wl_client_destroy () at
/usr/lib/libwayland-server.so.0
#3 0x00007f7d56510db9 in () at /usr/lib/libwayland-server.so.0
#4 0x00007f7d565129b2 in wl_event_loop_dispatch () at
/usr/lib/libwayland-server.so.0
#5 0x00007f7d5f17b2bf in KWayland::Server::Display::Private::dispatch() () at
/usr/lib/libKF5WaylandServer.so.5
#6 0x00007f7d5f99c9e1 in () at /usr/lib/libkwin.so.5
#7 0x00007f7d5f9986eb in () at /usr/lib/libkwin.so.5
#8 0x00007f7d5f998904 in () at /usr/lib/libkwin.so.5
#9 0x00007f7d5dd85b2f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#10 0x00007f7d5f996050 in KWin::PointerInputRedirection::update() () at
/usr/lib/libkwin.so.5
#11 0x00007f7d5dd85b2f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#12 0x00007f7d5f9abec1 in KWin::Workspace::updateStackingOrder(bool) () at
/usr/lib/libkwin.so.5
#13 0x00007f7d5f934a0c in () at /usr/lib/libkwin.so.5
#14 0x00007f7d5dd85b2f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#15 0x00007f7d5fb05d33 in
KWin::WaylandServer::shellClientRemoved(KWin::ShellClient*) () at
/usr/lib/libkwin.so.5
#16 0x00007f7d5fab8229 in KWin::WaylandServer::removeClient(KWin::ShellClient*)
() at /usr/lib/libkwin.so.5
#17 0x00007f7d5faad24d in KWin::ShellClient::destroyClient() () at
/usr/lib/libkwin.so.5
#18 0x00007f7d5dd85b2f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#19 0x00007f7d5f19756b in
KWayland::Server::Resource::Private::unbind(wl_resource*) () at
/usr/lib/libKF5WaylandServer.so.5
#20 0x00007f7d56510c12 in () at /usr/lib/libwayland-server.so.0
#21 0x00007f7d56515619 in () at /usr/lib/libwayland-server.so.0
#22 0x00007f7d56510cff in wl_client_destroy () at
/usr/lib/libwayland-server.so.0
#23 0x00007f7d56510db9 in () at /usr/lib/libwayland-server.so.0
#24 0x00007f7d565129b2 in wl_event_loop_dispatch () at
/usr/lib/libwayland-server.so.0
#25 0x00007f7d5f17b2bf in KWayland::Server::Display::Private::dispatch() () at
/usr/lib/libKF5WaylandServer.so.5
#26 0x00007f7d5dd85b2f in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#27 0x00007f7d5dd92349 in QSocketNotifier::activated(int,
QSocketNotifier::QPrivateSignal) () at /usr/lib/libQt5Core.so.5
#28 0x00007f7d5dd92724 in QSocketNotifier::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#29 0x00007f7d5e310e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#30 0x00007f7d5e318816 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#31 0x00007f7d5dd551e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#32 0x00007f7d5ddae651 in
QEventDispatcherUNIXPrivate::activateSocketNotifiers() () at
/usr/lib/libQt5Core.so.5
#33 0x00007f7d5ddaece9 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#34 0x00007f7d47e98bfe in () at /usr/lib/qt/plugins/platforms/KWinQpaPlugin.so
#35 0x00007f7d5dd5382b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#36 0x00007f7d5dd5cb18 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#37 0x000055dbb3e3c2c4 in ()
#38 0x00007f7d5d172f4a in __libc_start_main () at /usr/lib/libc.so.6
#39 0x000055dbb3e3c6da in _start ()
(gdb)
(gdb) thread 2
[Switching to thread 2 (Thread 0x7f7d455e1700 (LWP 734))]
#0 0x00007f7d5d23d91b in poll () from /usr/lib/libc.so.6
(gdb) bt
#0 0x00007f7d5d23d91b in poll () at /usr/lib/libc.so.6
#1 0x00007f7d54568ed3 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007f7d54568fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3 0x00007f7d5ddb1691 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4 0x00007f7d5dd5382b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5 0x00007f7d5db6378e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007f7d574a1416 in () at /usr/lib/libQt5DBus.so.5
#7 0x00007f7d5db68b2d in () at /usr/lib/libQt5Core.so.5
#8 0x00007f7d5ef0b08c in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007f7d5d247e1f in clone () at /usr/lib/libc.so.6
(gdb) thread 3
[Switching to thread 3 (Thread 0x7f7d3ffff700 (LWP 735))]
#0 0x00007f7d5d23d91b in poll () from /usr/lib/libc.so.6
(gdb) bt
#0 0x00007f7d5d23d91b in poll () at /usr/lib/libc.so.6
#1 0x00007f7d54568ed3 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007f7d54568fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3 0x00007f7d5ddb1691 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4 0x00007f7d5dd5382b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5 0x00007f7d5db6378e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007f7d5db68b2d in () at /usr/lib/libQt5Core.so.5
#7 0x00007f7d5ef0b08c in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007f7d5d247e1f in clone () at /usr/lib/libc.so.6
(gdb) thread 4
[Switching to thread 4 (Thread 0x7f7d3edee700 (LWP 736))]
#0 0x00007f7d5d23d91b in poll () from /usr/lib/libc.so.6
(gdb) bt
#0 0x00007f7d5d23d91b in poll () at /usr/lib/libc.so.6
#1 0x00007f7d54568ed3 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007f7d54568fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3 0x00007f7d5ddb1691 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4 0x00007f7d5dd5382b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5 0x00007f7d5db6378e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007f7d5db68b2d in () at /usr/lib/libQt5Core.so.5
#7 0x00007f7d5ef0b08c in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007f7d5d247e1f in clone () at /usr/lib/libc.so.6
(gdb) thread 5
[Switching to thread 5 (Thread 0x7f7d359bd700 (LWP 760))]
#0 0x00007f7d5ef1139d in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
(gdb) bt
#0 0x00007f7d5ef1139d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1 0x00007f7d36ffffbc in () at /usr/lib/dri/radeonsi_dri.so
#2 0x00007f7d36fffec8 in () at /usr/lib/dri/radeonsi_dri.so
#3 0x00007f7d5ef0b08c in start_thread () at /usr/lib/libpthread.so.0
#4 0x00007f7d5d247e1f in clone () at /usr/lib/libc.so.6
(gdb)
In jounralctl was not a lot of information during Kwin segmentation fault.
$ journalctl -f
Jan 07 11:40:03 pc org_kde_powerdevil[978]: kscreen.kwayland: Loading Wayland
backend.
Jan 07 11:40:03 pc plasmashell[887]: trying to show an empty dialog
Jan 07 11:40:03 pc plasmashell[887]: Using the 'wl-shell' shell integration
Jan 07 11:40:03 pc plasmashell[887]:
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/FolderItemDelegate.qml:288:17:
QML Text: Binding loop detected for property "width"
Jan 07 11:40:03 pc plasmashell[887]: Connecting to deprecated signal
QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
Jan 07 11:40:03 pc kdeinit5[840]: ()
Jan 07 11:40:03 pc kdeinit5[840]: ("/home/rainer/kwin2.gdb")
Jan 07 11:40:03 pc kdeinit5[840]: ()
Jan 07 11:40:03 pc dbus-daemon[713]: [session uid=1000 pid=711] Activating
service name='org.gnome.GConf' requested by ':1.40' (uid=1000 pid=895
comm="/usr/lib/firefox/firefox --sm-client-id 1016619316")
Jan 07 11:40:03 pc dbus-daemon[713]: [session uid=1000 pid=711] Successfully
activated service 'org.gnome.GConf'
Jan 07 11:40:03 pc dbus-daemon[713]: [session uid=1000 pid=711] Activating
service name='org.kde.kuiserver' requested by ':1.26' (uid=1000 pid=887
comm="/usr/bin/plasmashell ")
Jan 07 11:40:03 pc dbus-daemon[713]: [session uid=1000 pid=711] Successfully
activated service 'org.kde.kuiserver'
Jan 07 11:40:04 pc akonadiserver[1065]: Connecting to deprecated signal
QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
Jan 07 11:40:04 pc plasmashell[887]: Trying to use rootObject before
initialization is completed, whilst using setInitializationDelayed. Forcing
completion
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/main.qml:78:27:
Unable to assign [undefined] to QStringList
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.digitalclock/contents/ui/main.qml:37:
TypeError: Cannot read property 'DateTime' of undefined
Jan 07 11:40:04 pc plasmashell[887]: Both point size and pixel size set. Using
pixel size.
Jan 07 11:40:04 pc plasmashell[887]: Both point size and pixel size set. Using
pixel size.
Jan 07 11:40:04 pc plasmashell[887]: Both point size and pixel size set. Using
pixel size.
Jan 07 11:40:04 pc plasmashell[887]: trying to show an empty dialog
Jan 07 11:40:04 pc plasmashell[887]: trying to show an empty dialog
Jan 07 11:40:04 pc akonadi_imap_resource[1359]: Using Wayland-EGL
Jan 07 11:40:04 pc kdeinit5[840]: Registering "org.kde.StatusNotifierHost-887"
as system tray
Jan 07 11:40:04 pc akonadi_archivemail_agent[1354]: Using Wayland-EGL
Jan 07 11:40:04 pc akonadi_ical_resource[1358]: "No file selected."
Jan 07 11:40:04 pc plasmashell[887]: couldn't load
"/usr/lib/qt/plugins/discover-notifier/DiscoverPackageKitNotifier.so" because
"Cannot load library
/usr/lib/qt/plugins/discover-notifier/DiscoverPackageKitNotifier.so:
(libpackagekitqt5.so.0: Kann die Shared-Object-Datei nicht öffnen: Datei oder
Verzeichnis nicht gefunden)"
Jan 07 11:40:04 pc plasmashell[887]: couldn't load
"/usr/lib/qt/plugins/discover-notifier/FlatpakNotifier.so" because "Cannot load
library /usr/lib/qt/plugins/discover-notifier/FlatpakNotifier.so:
(libflatpak.so.0: Kann die Shared-Object-Datei nicht öffnen: Datei oder
Verzeichnis nicht gefunden)"
Jan 07 11:40:04 pc plasmashell[887]: couldn't find any notifier backend
("/usr/lib/qt/plugins")
Jan 07 11:40:04 pc akonadi_sendlater_agent[1368]: Using Wayland-EGL
Jan 07 11:40:04 pc plasmashell[887]: Empty filename passed to function
Jan 07 11:40:04 pc plasmashell[887]: Empty filename passed to function
Jan 07 11:40:04 pc akonadi_mailfilter_agent[1364]: Using Wayland-EGL
Jan 07 11:40:04 pc plasmashell[887]: kf5idletime_kwayland: This plugin does not
support polling idle time
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/lib/qt/qml/QtQuick/Controls/Button.qml:99: TypeError: Cannot read
property 'width' of null
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:365: TypeError: Cannot
read property 'padding' of null
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:364: TypeError: Cannot
read property 'padding' of null
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:363: TypeError: Cannot
read property 'padding' of null
Jan 07 11:40:04 pc plasmashell[887]:
file:///usr/lib/qt/qml/QtQuick/Controls/ScrollView.qml:362: TypeError: Cannot
read property 'padding' of null
Jan 07 11:40:04 pc plasmashell[887]: libkcups: Create-Printer-Subscriptions
last error: 1282 Ungültiger Dateideskriptor
Jan 07 11:40:04 pc plasmashell[887]: libkcups: Request failed 1282 -1
Jan 07 11:40:04 pc plasmashell[887]: libkcups: Get-Jobs last error: 1282
Ungültiger Dateideskriptor
Jan 07 11:40:04 pc plasmashell[887]: libkcups: Get-Jobs last error: 1282
Ungültiger Dateideskriptor
Jan 07 11:40:05 pc plasmashell[887]: Data set on unsupported clipboard mode.
QMimeData object will be deleted.
Jan 07 11:40:05 pc plasmashell[887]: Plasma Shell startup completed
Jan 07 11:40:05 pc plasmashell[887]: Both point size and pixel size set. Using
pixel size.
Jan 07 11:40:05 pc plasmashell[887]: trying to show an empty dialog
Jan 07 11:40:05 pc systemd-resolved[511]: Using degraded feature set (UDP) for
DNS server 192.168.1.1.
Jan 07 11:40:05 pc plasmashell[887]: ktp-common-internals: Current presence
changed
Jan 07 11:40:05 pc plasmashell[887]: ktp-common-internals: Current presence
changed
Jan 07 11:40:05 pc kdeinit5[840]: org.kde.kmix: kmixd: Delayed initialization
running now
Jan 07 11:40:05 pc kdeinit5[840]: org.kde.kmix: kmixd: Delayed initialization
done
Jan 07 11:42:02 pc dbus-daemon[713]: [session uid=1000 pid=711] Failed to
activate service 'org.freedesktop.Telepathy.Client.KTp.KdedIntegrationModule':
timed out (service_start_timeout=120000ms)
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