Bug 422168

Summary: Discover crash after opening from update notification
Product: [Applications] Discover Reporter: h7250.kdebugs
Component: discoverAssignee: Dan Leinir Turthra Jensen <leinir>
Status: RESOLVED WORKSFORME    
Severity: crash CC: aleixpol, nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.12.8   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description h7250.kdebugs 2020-05-28 11:28:46 UTC 
Application: plasma-discover (5.12.8)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.3.0-51-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
  I had opened a notification about 7 security updates for 7 packages. I selected the update option, but it first didn't open. I tried gain, but it opened the instantly crasahed.

- Custom settings of the application:
  I had enabled snap.

-- 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 0x7f326dff8800 (LWP 3839))]

Thread 13 (Thread 0x7f321a7dd700 (LWP 3856)):
#0  0x00007f3265ef39f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557de2e60e90) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3265ef39f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x557de2e60e40, cond=0x557de2e60e68) at pthread_cond_wait.c:502
#2  0x00007f3265ef39f3 in __pthread_cond_wait (cond=0x557de2e60e68, mutex=0x557de2e60e40) at pthread_cond_wait.c:655
#3  0x00007f3269ce05ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f326d1396a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f326d139b0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3265eed6db in start_thread (arg=0x7f321a7dd700) at pthread_create.c:463
#8  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f321afde700 (LWP 3851)):
#0  0x00007f3269cde00d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f3269f16ca1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3263dbdfe1 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3263dbe570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3269f168ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3269cda23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3265eed6db in start_thread (arg=0x7f321afde700) at pthread_create.c:463
#10 0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f321bbf5700 (LWP 3849)):
#0  0x00007f3265ef3ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f321bbf4c40, expected=0, futex_word=0x7f321c006ff0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f3265ef3ed9 in __pthread_cond_wait_common (abstime=0x7f321bbf4d00, mutex=0x7f321c006fa0, cond=0x7f321c006fc8) at pthread_cond_wait.c:533
#2  0x00007f3265ef3ed9 in __pthread_cond_timedwait (cond=0x7f321c006fc8, mutex=0x7f321c006fa0, abstime=0x7f321bbf4d00) at pthread_cond_wait.c:667
#3  0x00007f3269ce0468 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3269cdc53d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3265eed6db in start_thread (arg=0x7f321bbf5700) at pthread_create.c:463
#7  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3220a60700 (LWP 3848)):
#0  0x00007f3265ef3ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f3220a5fc40, expected=0, futex_word=0x7f321c0042f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f3265ef3ed9 in __pthread_cond_wait_common (abstime=0x7f3220a5fd00, mutex=0x7f321c0042a0, cond=0x7f321c0042c8) at pthread_cond_wait.c:533
#2  0x00007f3265ef3ed9 in __pthread_cond_timedwait (cond=0x7f321c0042c8, mutex=0x7f321c0042a0, abstime=0x7f3220a5fd00) at pthread_cond_wait.c:667
#3  0x00007f3269ce0468 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3269cdc53d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3265eed6db in start_thread (arg=0x7f3220a60700) at pthread_create.c:463
#7  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f3221261700 (LWP 3847)):
#0  0x00007f3265ef39f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f321c021720) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3265ef39f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f321c0216d0, cond=0x7f321c0216f8) at pthread_cond_wait.c:502
#2  0x00007f3265ef39f3 in __pthread_cond_wait (cond=0x7f321c0216f8, mutex=0x7f321c0216d0) at pthread_cond_wait.c:655
#3  0x00007f3269ce05ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3269cd8c1b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3269eec868 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f32674b8e9b in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#7  0x00007f326754ed1d in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f3269eec555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f32674aefc1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f32674af775 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f3269eec555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f3267548aaf in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007f3267546710 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007f3267546aba in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f326752b401 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007f3269eec555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f32674f5843 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007f32674f58f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f32675097a1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f326c19183c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f326c199104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f3269ebd8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f3269f174ed in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f3263dbe417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f3263dbe650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f3269f1688f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f3269cda23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f3265eed6db in start_thread (arg=0x7f3221261700) at pthread_create.c:463
#32 0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f32315db700 (LWP 3846)):
#0  0x00007f3263e04644 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3263dbdac0 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3263dbe4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3269f168ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3269cda23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3265eed6db in start_thread (arg=0x7f32315db700) at pthread_create.c:463
#9  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3231ddc700 (LWP 3845)):
#0  0x00007f32695cdbf9 in __GI___poll (fds=0x557ddffd2fc0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3263dbe5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3263dbe962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f323a894276 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f3263de6175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3265eed6db in start_thread (arg=0x7f3231ddc700) at pthread_create.c:463
#6  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f32325dd700 (LWP 3844)):
#0  0x00007f3263dbddc1 in g_main_context_query () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3263dbe547 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3263dbe721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3263de6175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3265eed6db in start_thread (arg=0x7f32325dd700) at pthread_create.c:463
#6  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3241c8b700 (LWP 3843)):
#0  0x00007f3263e04644 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3263dbdb18 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3263dbe4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3269f168ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3269cda23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f326d0ba2a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3265eed6db in start_thread (arg=0x7f3241c8b700) at pthread_create.c:463
#10 0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3250c9e700 (LWP 3842)):
#0  0x00007f32695c90b4 in __GI___libc_read (fd=11, buf=0x7f3250c9db70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f3263e032b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3263dbe0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3263dbe570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3269f168ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3269cda23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f326a8f06f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3265eed6db in start_thread (arg=0x7f3250c9e700) at pthread_create.c:463
#11 0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3252346700 (LWP 3841)):
#0  0x00007f32695c90b4 in __GI___libc_read (fd=7, buf=0x7f3252345b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f3263e032b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3263dbe0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3263dbe570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3269f168ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3269cda23a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f326b0cbd45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3265eed6db in start_thread (arg=0x7f3252346700) at pthread_create.c:463
#11 0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f325b3fb700 (LWP 3840)):
#0  0x00007f32695cdbf9 in __GI___poll (fds=0x7f325b3faca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3263b55747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f3263b5736a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f325e1a85e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f3269cdf17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3265eed6db in start_thread (arg=0x7f325b3fb700) at pthread_create.c:463
#6  0x00007f32695da88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f326dff8800 (LWP 3839)):
[KCrash Handler]
#6  0x00000000ffffffff in  ()
#7  0x00007f3269ec66a9 in QMetaObject::cast(QObject const*) const () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f326d97a85f in  () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#9  0x00007f3269ebd46c in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f326c191878 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f326c199104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f3269ebd8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3269ef3138 in QObjectPrivate::setParent_helper(QObject*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f3269ef3e06 in QObject::QObject(QObject*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f326cd60cfb in AbstractResource::AbstractResource(AbstractResourcesBackend*) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#16 0x00007f3230533549 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/snap-backend.so
#17 0x00007f3230536458 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/snap-backend.so
#18 0x00007f3269eec66f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f32302fd5ce in QSnapdRequest::finish(void*) () at /usr/lib/x86_64-linux-gnu/libsnapd-qt.so.1
#20 0x00007f32302ead3d in QSnapdListRequest::handleResult(void*, void*) () at /usr/lib/x86_64-linux-gnu/libsnapd-qt.so.1
#21 0x00007f3230084c82 in  () at /usr/lib/x86_64-linux-gnu/libsnapd-glib.so.1
#22 0x00007f3263dbe285 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f3263dbe650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f3263dbe6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f3269f1688f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f3269ebb90a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f3269ec49b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x0000557ddf038148 in  ()
#29 0x00007f32694dab97 in __libc_start_main (main=0x557ddf037870, argc=1, argv=0x7ffea2e46e38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffea2e46e28) at ../csu/libc-start.c:310
#30 0x0000557ddf0383ca in _start ()

Reported using DrKonqi
Comment 1 h7250.kdebugs 2020-05-28 11:30:13 UTC 
It happened once again, but then the notification disappeared.
Comment 2 Nate Graham 2021-04-07 20:34:56 UTC 
Crashing somewhere in the snap backend:

AbstractResource::AbstractResource(AbstractResourcesBackend*) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#16 0x00007f3230533549 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/snap-backend.so
#17 0x00007f3230536458 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/snap-backend.so

Hard to know more without better debug symbols. However I notice that you're using version 5.12.8 which is no longer supported. I would recommend that you upgrade to the new LTS version (5.18) or a newer one, and see if you can still reproduce the problem. Thanks!
Comment 3 Bug Janitor Service 2021-04-22 04:33:18 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2021-05-07 04:33:38 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!