Bug 432266

Summary: Discover crashes few seconds after loading
Product: [Applications] Discover Reporter: Justin <justinf7293>
Component: discoverAssignee: Dan Leinir Turthra Jensen <leinir>
Status: RESOLVED DUPLICATE    
Severity: crash CC: aleixpol, eperulli, nate, paninomaninodesu
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.16.5   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Justin 2021-01-28 23:54:36 UTC 
Application: plasma-discover (5.16.5)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.3.0-64-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
- What I was doing when the application crashed:
I had just opened the application and after it began loading up sources and returning and error, it crashes. It happens every time.
- Custom settings of the application:
The sources.list file has been manipulated, restoration back to normal did not resolve the issue, so I tried to replace it with the one from the source, also did not work. The software source " deb http://deb.playonlinux.com/ ubuntu main" has been added and appears to be the main cause.

The crash can be reproduced every time.

-- Backtrace:
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 0x7f813db11680 (LWP 8075))]

Thread 13 (Thread 0x7f8120e2b700 (LWP 8087)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a402c9c114) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a402c9c0c0, cond=0x55a402c9c0e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55a402c9c0e8, mutex=0x55a402c9c0c0) at pthread_cond_wait.c:638
#3  0x00007f8141bdbdbf in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141bdbeb1 in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f81439587b9 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f8143958a1a in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f812162c700 (LWP 8086)):
#0  0x00007f814184dbbf in __GI___poll (fds=0x7f80e000d820, nfds=1, timeout=110220) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f81405d3aae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8141df4653 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141d9b5cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8141bd4a45 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f8121fbb700 (LWP 8085)):
#0  __GI___libc_read (nbytes=16, buf=0x7f8121fbabd0, fd=25) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=25, buf=0x7f8121fbabd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f814061b70f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f81405d35fe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f81405d3a52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f81405d3e33 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f81402cb8da in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007f81405fd181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f81227bc700 (LWP 8084)):
#0  __GI___libc_read (nbytes=16, buf=0x7f81227bbbe0, fd=23) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=23, buf=0x7f81227bbbe0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f814061b70f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f81405d35fe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f81405d3a52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f81405d3c31 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f81405fd181 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f8122ffd700 (LWP 8083)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f8122ffcbd0, clockid=<optimized out>, expected=0, futex_word=0x7f8118008324) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  __pthread_cond_wait_common (abstime=0x7f8122ffcbd0, clockid=<optimized out>, mutex=0x7f81180082d0, cond=0x7f81180082f8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f81180082f8, mutex=0x7f81180082d0, abstime=0x7f8122ffcbd0) at pthread_cond_wait.c:656
#3  0x00007f8141bdbd2c in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141bdbe7b in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8141bd9421 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f81237fe700 (LWP 8082)):
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f81237fdbd0, clockid=<optimized out>, expected=0, futex_word=0x7f8118006624) at ../sysdeps/unix/sysv/linux/futex-internal.h:208
#1  __pthread_cond_wait_common (abstime=0x7f81237fdbd0, clockid=<optimized out>, mutex=0x7f81180065d0, cond=0x7f81180065f8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x7f81180065f8, mutex=0x7f81180065d0, abstime=0x7f81237fdbd0) at pthread_cond_wait.c:656
#3  0x00007f8141bdbd2c in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141bdbe7b in QWaitCondition::wait(QMutex*, unsigned long) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8141bd9421 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f8123fff700 (LWP 8081)):
#0  0x00007f814184dbbf in __GI___poll (fds=0x7f81181a62a0, nfds=1, timeout=110236) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f81405d3aae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8141df4653 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141d9b5cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8141bd4a45 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f812d10d700 (LWP 8080)):
#0  0x00007f814184dbbf in __GI___poll (fds=0x7f811c0029e0, nfds=1, timeout=9220) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f81405d3aae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8141df4653 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141d9b5cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8141bd4a45 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#8  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f8134afb700 (LWP 8079)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a40028926c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a400289218, cond=0x55a400289240) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55a400289240, mutex=0x55a400289218) at pthread_cond_wait.c:638
#3  0x00007f812f81eaab in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f812f81e6cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f81368e4700 (LWP 8078)):
#0  __GI___libc_read (nbytes=16, buf=0x7f81368e3a70, fd=9) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=9, buf=0x7f81368e3a70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f814061b70f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f81405d35fe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f81405d3a52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f8141df4653 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8141d9b5cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8141bd4a45 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f81425ef319 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f8137af5700 (LWP 8077)):
#0  0x00007f814184dbbf in __GI___poll (fds=0x7f8130018b00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f81405d3aae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8141df4653 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8141d9b5cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8141bd4a45 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8142799efa in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f813cc61700 (LWP 8076)):
#0  0x00007f814184dbbf in __GI___poll (fds=0x7f813cc60ba8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f81404ef917 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f81404f153a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f813d45b288 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f8141bd5c92 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8140faa669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007f814185a2b3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f813db11680 (LWP 8075)):
[KCrash Handler]
#6  0x000055a405fc0040 in ?? ()
#7  0x00007f8141dcd87a in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8141dcdaf2 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f8143e5ca95 in AggregatedResultsStream::addResults(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#10 0x00007f8141dc8558 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f8143e81836 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#12 0x00007f8143e6eea9 in ?? () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#13 0x00007f8141dd5696 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f8141dc8de5 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f814321fa86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f8143228e00 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f8141d9ca2a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f8141df3990 in QTimerInfoList::activateTimers() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f8141df426c in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f81405d38bd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f81405d3b40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f81405d3be3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f8141df4635 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f8141d9b5cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f8141da3336 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x000055a3fe06a5a1 in ?? ()
#27 0x00007f814175f1e3 in __libc_start_main (main=0x55a3fe069f00, argc=1, argv=0x7ffd2fdc4448, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd2fdc4438) at ../csu/libc-start.c:308
#28 0x000055a3fe06ab3e in _start ()
[Inferior 1 (process 8075) detached]

Possible duplicates by query: bug 416408, bug 412632, bug 401961.

Reported using DrKonqi
Comment 1 Nate Graham 2021-01-29 15:16:28 UTC 

*** This bug has been marked as a duplicate of bug 412632 ***
Comment 2 emiliano80 2021-02-04 23:05:26 UTC 
Same here, with ArchLinux:
Qt ver: 5.15.2
KDE framework ver: 5.78.0
Plasma version: 5.20.5

Steps to reproduce:
Simply open discover and wait a few seconds, it'll segfault every time.
No custom settings have been added, nor the repo files manipulated
Dr. Konqi's backtrace follows:

Application: Discover (plasma-discover), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f5a878c7b48 in g_slist_find () at /usr/lib/libglib-2.0.so.0
#5  0x00007f5a8722673c in  () at /usr/lib/libgobject-2.0.so.0
#6  0x00007f5a872076fa in  () at /usr/lib/libgobject-2.0.so.0
#7  0x00007f5a8720d0c4 in  () at /usr/lib/libgobject-2.0.so.0
#8  0x00007f5a8720e8a4 in g_object_new_valist () at /usr/lib/libgobject-2.0.so.0
#9  0x00007f5a8720ec1a in g_object_new () at /usr/lib/libgobject-2.0.so.0
#10 0x00007f5a6c2b5c01 in  () at /usr/lib/libflatpak.so.0
#11 0x00007f5a6c2b0c33 in  () at /usr/lib/libflatpak.so.0
#12 0x00007f5a6c2b1b49 in flatpak_installation_get_installed_ref () at /usr/lib/libflatpak.so.0
#13 0x00007f5a6c37fb0d in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#14 0x00007f5a6c385a4d in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#15 0x00007f5a6c3863b7 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#16 0x00007f5a6c3865e3 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#17 0x00007f5a6c387562 in  () at /usr/lib/qt/plugins/discover/flatpak-backend.so
#18 0x00007f5a8949cdd6 in  () at /usr/lib/libQt5Core.so.5
#19 0x00007f5a89288525 in QFutureWatcherBase::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#20 0x00007f5a8a423752 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f5a89465a7a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#22 0x00007f5a89468573 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#23 0x00007f5a894bf0a4 in  () at /usr/lib/libQt5Core.so.5
#24 0x00007f5a878aca84 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#25 0x00007f5a879009b1 in  () at /usr/lib/libglib-2.0.so.0
#26 0x00007f5a878ab2b1 in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#27 0x00007f5a894be6e1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#28 0x00007f5a894643fc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#29 0x00007f5a8946c894 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#30 0x000055b2063888cc in  ()
#31 0x00007f5a88e30152 in __libc_start_main () at /usr/lib/libc.so.6
#32 0x000055b206388e6e in _start ()
[Inferior 1 (process 34443) detached]
Comment 3 paninomaninodesu 2022-08-20 23:52:36 UTC 
Created attachment 151464 [details]
New crash information added by DrKonqi

plasma-discover (5.25.4) using Qt 5.15.5

Sometimes Discover crashes while it's searching for updates.
Launching it again and trying again works, but frequently it crashes during first try.

-- Backtrace (Reduced):
#4  0x00007f3db1762120 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3db1762615 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3d98db274a in KNSCore::Engine::addProvider(QSharedPointer<KNSCore::Provider>) () from /lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5
#7  0x00007f3d98db2f85 in KNSCore::Engine::slotProviderFileLoaded(QDomDocument const&) () from /lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5
[...]
#9  0x00007f3d98d97e96 in KNSCore::XmlLoader::signalLoaded(QDomDocument const&) () from /lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5