Hi,

I'm using KDE Neon 5.16. After an update, discover crashes. This is the konsole output:

invalid kns backend! "/usr/share/knsrcfiles/ksysguard.knsrc" because: "Config group not found! Check your KNS3 installation."
adding empty sources model QStandardItemModel(0x562c4205ce80)
no packages for "org.kde.plasma.quicklaunch"
no packages for "org.kde.plasma.systemloadviewer"
no packages for "org.kde.plasma.showActivityManager"
no packages for "org.kde.plasma.grouping"
no packages for "org.kde.plasma.diskquota"
no packages for "org.kde.plasma.timer"
no packages for "org.kde.kscreen"
no packages for "org.kde.plasma.appmenu"
no packages for "im.riot.webapp"
no packages for "org.kde.plasma.kimpanel"
no packages for "org.cockpit_project.cockpit"
no org.audacityteam.Audacity.Codecs
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.audacityteam.Audacity.Codecs.desktop"
no org.freedesktop.Platform.GL.default
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.GL.default.desktop"
no org.freedesktop.Platform.VAAPI.Intel
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.VAAPI.Intel.desktop"
no org.freedesktop.Platform.VAAPI.Intel
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.VAAPI.Intel.desktop"
no org.freedesktop.Platform.html5-codecs
Failed to parse appstream metadata: AppStream::Metadata::MetadataErrorParse "/var/lib/flatpak/exports/share/applications/org.freedesktop.Platform.html5-codecs.desktop"
no org.kde.kdenlive.Locale
could not find updated resource org.kde.kdenlive.Locale 821
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = plasma-discover path = /usr/bin pid = 19761
KCrash: Arguments: /usr/bin/plasma-discover
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 40 and type 'Read', disabling...
QSocketNotifier: Invalid socket 16 and type 'Read', disabling...

[1]+ Stoped plasma-discover


Any idea?

You may try to update flatpak by executing:
flatpak update

You are the man!!

Solved!! many thanks.

still crashes.

all plasma krashes, network, discover, etc....i did a fresh install and is even worse that previous versions.

In general, if an application crashes, I would suggest to install the debug symbols package (e.g. for plasma-discover package, the debug symbols can be found in plasma-discover-dbgsym) and create a bug report in bugs.kde.org.

Hi, I'm also having problems with crashing discover.
All I do is I click on the Update icon in system tray and Discover crashes immediately.
I did also flatpak update, but no luck. Discover crashes everytime.

Although at least manual update using 'pkcon update' command is working.

Versions:
Flatpak version: 1.4.2
Plasma version: 5.16.5
KDE Framework version: 5.62.0
Qt version: 5.12.3
Kernel version: 4.15.0-64-generic

Error:

Code: Select all

Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1409f98e00 (LWP 9458))]

Thread 11 (Thread 0x7f138ab48700 (LWP 9481)):
#0  0x00007f140196b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f137c0969e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5573e6920318, cond=0x7f137c0969b8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f137c0969b8, mutex=0x5573e6920318) at pthread_cond_wait.c:655
#3  0x00007f13fe7b8952 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007f13fe7ba45a in xcb_wait_for_special_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007f13df39432b in glPrimitiveBoundingBox () from /usr/lib/x86_64-linux-gnu/libGLX_mesa.so.0
#6  0x00007f13df394620 in glPrimitiveBoundingBox () from /usr/lib/x86_64-linux-gnu/libGLX_mesa.so.0
#7  0x00007f13df394dfe in glPrimitiveBoundingBox () from /usr/lib/x86_64-linux-gnu/libGLX_mesa.so.0
#8  0x00007f13df395d59 in glPrimitiveBoundingBox () from /usr/lib/x86_64-linux-gnu/libGLX_mesa.so.0
#9  0x00007f13dd4eb846 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#10 0x00007f13dd4ebc35 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#11 0x00007f13dd4e705d in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#12 0x00007f1408936848 in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f140893c056 in QSGBatchRenderer::Renderer::render() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f140892c810 in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f140892ccbb in QSGRenderer::renderScene(unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f1408969830 in QSGDefaultRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007f14089cba18 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007f1408974e92 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f1408978ae8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f14019656db in start_thread (arg=0x7f138ab48700) at pthread_create.c:463
#22 0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f138bb4a700 (LWP 9479)):
#0  0x00007f13ff082b2e in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f13ff0834fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13ff0836dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1405510dcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14054b203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f14052d94ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f14019656db in start_thread (arg=0x7f138bb4a700) at pthread_create.c:463
#8  0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f13bffff700 (LWP 9472)):
#0  0x00007f1404bcdbf9 in __GI___poll (fds=0x5573e7397b40, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f13ff0835c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13ff083962 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13fd9a70e6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f13ff0ab195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f14019656db in start_thread (arg=0x7f13bffff700) at pthread_create.c:463
#6  0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f13c888b700 (LWP 9471)):
#0  0x00007f1404bcdbf9 in __GI___poll (fds=0x5573e7387a30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f13ff0835c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13ff0836dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13ff083721 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f13ff0ab195 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f14019656db in start_thread (arg=0x7f13c888b700) at pthread_create.c:463
#6  0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f13d0b5c700 (LWP 9468)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007f1404bc90c9 in __GI___libc_read (fd=22, buf=0x7f13d0b5ba50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#2  0x00007f13ff0c82d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13ff0830b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f13ff083570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f13ff0836dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f1405510dcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f14054b203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f14052d94ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f14019656db in start_thread (arg=0x7f13d0b5c700) at pthread_create.c:463
#11 0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f13d2153700 (LWP 9467)):
#0  0x00007f1404bcdbf9 in __GI___poll (fds=0x7f13cc003ce0, nfds=1, timeout=1489) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f13ff0835c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13ff0836dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1405510dcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14054b203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f14052d94ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f14019656db in start_thread (arg=0x7f13d2153700) at pthread_create.c:463
#8  0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f13dc2bd700 (LWP 9465)):
#0  0x00007f140196b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5573e6a9d5c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5573e6a9d578, cond=0x5573e6a9d5a0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5573e6a9d5a0, mutex=0x5573e6a9d578) at pthread_cond_wait.c:655
#3  0x00007f13dd5a10aa in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f13dd5a0dd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f14019656db in start_thread (arg=0x7f13dc2bd700) at pthread_create.c:463
#6  0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f13e75ef700 (LWP 9464)):
#0  0x00007f13ff0c9649 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f13ff082b33 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13ff0834fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13ff0836dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f1405510dcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f14054b203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f14052d94ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f14062c4115 in QQmlThreadPrivate::run (this=0x5573e69c36d0) at qml/ftw/qqmlthread.cpp:148
#8  0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f14019656db in start_thread (arg=0x7f13e75ef700) at pthread_create.c:463
#10 0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f13ecf38700 (LWP 9462)):
#0  0x00007f1404bc90b4 in __GI___libc_read (fd=7, buf=0x7f13ecf37a20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f13ff0c82d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13ff0830b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13ff083570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f13ff0836dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f1405510dcb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f14054b203a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f14052d94ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f1406662015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f14019656db in start_thread (arg=0x7f13ecf38700) at pthread_create.c:463
#11 0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f13f4c88700 (LWP 9460)):
#0  0x00007f1404bcdbf9 in __GI___poll (fds=0x7f13f4c87b68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f13fe7b8747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f13fe7ba36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f13f7868578 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f14052dac72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f14019656db in start_thread (arg=0x7f13f4c88700) at pthread_create.c:463
#6  0x00007f1404bda88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1409f98e00 (LWP 9458)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f14060ef215 in QV4::Object::get (receiver=0x7ffeb6096c88, hasProperty=0x0, name=0x7ffeb6096c90, this=0x7ffeb6096c88) at jsruntime/qv4object_p.h:308
#8  QV4::Lookup::getterProtoTwoClasses (l=<optimized out>, engine=<optimized out>, object=...) at jsruntime/qv4lookup.cpp:301
#9  0x00007f13ec0328ce in ?? ()
#10 0x0000000000000000 in ?? ()


same here. I'm running kde neon and doing update very regulary. Since about Monday ou Tuesday, Discover crashes after a couple of seconds when I click on the taskbar icon for updates.