514896 – DiscoverNotifier crashes in RpmOstreeNotifier::checkSystemUpdateClassic due to null pointer (deleteLater on null object)

Bug 514896 - DiscoverNotifier crashes in RpmOstreeNotifier::checkSystemUpdateClassic due to null pointer (deleteLater on null object)

Summary: DiscoverNotifier crashes in RpmOstreeNotifier::checkSystemUpdateClassic due t...

Status:	ASSIGNED

Alias:	None

Product:	Discover
Classification:	Applications
Component:	rpm-ostree Backend (other bugs)
Version First Reported In:	6.5.5
Platform:	Fedora RPMs Linux

Importance:	NOR crash
Target Milestone:	---
Assignee:	Plasma Bugs List

URL:
Keywords:

Depends on:
Blocks:

Reported:	2026-01-21 11:29 UTC by Eshan
Modified:	2026-01-21 13:46 UTC (History)
CC List:	3 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

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Description Eshan 2026-01-21 11:29:44 UTC

SUMMARY
DiscoverNotifier crashes in RpmOstreeNotifier::checkSystemUpdateClassic because it tries to call deleteLater on a null pointer.

STEPS TO REPRODUCE
1. Use Fedora (Atomic/Silverblue/Kinoite).
2. Wait till the update notifier checks for updates in the background.
3. It crashes randomly when the background rpm-ostree process finishes.

OBSERVED RESULT 
DiscoverNotifier segfaults. DrKonqi couldn't even report it because it kept hitting an "UnexpectedMappingException" at frame #31, so I had to pull the backtrace manually with GDB.

EXPECTED RESULT
No crashes.

SOFTWARE/OS VERSIONS
Discover: 6.5.5
Fedora Linux 43.20260117.0 (Kinoite) (Wayland)
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.5-200.fc43.x86_64 (64-bit)

ADDITIONAL INFORMATION
Backtrace:
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007fe1bcce5493 in __pthread_kill_internal (threadid=<optimized out>, signo=11) at pthread_kill.c:89
#2  0x00007fe1bcc8b15e in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3  0x00007fe1be6a6041 in KCrash::defaultCrashHandler (sig=11) at /usr/src/debug/kf6-kcrash-6.22.0-1.fc43.x86_64/src/kcrash.cpp:605
#4  <signal handler called>
#5  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get (this=0x8)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/tools/qscopedpointer.h:110
#6  qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (ptr=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/global/qtclasshelpermacros.h:137
#7  QObject::d_func (this=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.h:110
#8  QObject::deleteLater (this=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:2462
#9  0x00007fe19ab5ef75 in RpmOstreeNotifier::checkSystemUpdateClassic()::{lambda(int, QProcess::ExitStatus)#1}::operator()(int, QProcess::ExitStatus) const
() at /usr/src/debug/plasma-discover-6.5.5-1.fc43.x86_64/libdiscover/backends/RpmOstreeBackend/RpmOstreeNotifier.cpp:180
#10 0x00007fe1bd24459a in QtPrivate::QSlotObjectBase::call (this=0x7fe174211510, r=0x7fe17c000f20, a=0x7fff335b67d0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobjectdefs_impl.h:461
#11 doActivate<false> (sender=0x7fe17c000f20, signal_index=<optimized out>, argv=argv@entry=0x7fff335b67d0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:4257
#12 0x00007fe1bd23ae69 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fe1bd796fa0, local_signal_index=local_signal_index@entry=1,
argv=argv@entry=0x7fff335b67d0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:4317
--Type <RET> for more, q to quit, c to continue without paging--c
#13 0x00007fe1bd429df4 in QMetaObject::activate<void, int, QProcess::ExitStatus> (sender=<optimized out>, mo=0x7fe1bd796fa0,
local_signal_index=1, ret=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobjectdefs.h:319
#14 QProcess::finished (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/redhat-linux-build/src/corelib/Core_autogen/include/moc_qprocess.cpp:266
#15 0x00007fe1bd42c495 in QProcessPrivate::processFinished (this=this@entry=0x5609adce5660)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1261
#16 0x00007fe1bd438be2 in QProcessPrivate::waitForFinished (this=this@entry=0x5609adce5660, deadline=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess_unix.cpp:1298
#17 0x00007fe1bd42bdea in QProcess::waitForFinished (this=this@entry=0x7fe17c000f20, msecs=msecs@entry=30000)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:2096
#18 0x00007fe1bd1236ac in QProcess::~QProcess (this=0x7fe17c000f20)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1330
#19 0x00007fe1bd42c9d5 in QProcess::~QProcess (this=0x7fe17c000f20)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1333
#20 0x00007fe1bd235ecc in QObject::event (this=<optimized out>, e=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:1398
#21 0x00007fe1be76eb9f in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x7fe17c000f20, e=0x5609adce3680)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/widgets/kernel/qapplication.cpp:3305
#22 0x00007fe1bd1d94e8 in QCoreApplication::notifyInternal2 (receiver=0x7fe17c000f20, event=0x5609adce3680)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1109
#23 0x00007fe1bd1d974d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1549
#24 0x00007fe1bd1dcb09 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5609ad8d22b0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1904
#25 0x00007fe1bd4fbfcf in postEventSourceDispatch (s=0x5609ad8d5ce0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#26 0x00007fe1bbc2b2a3 in g_main_dispatch (context=0x7fe1a4000f60) at ../glib/gmain.c:3565
#27 g_main_context_dispatch_unlocked (context=0x7fe1a4000f60) at ../glib/gmain.c:4425
#28 0x00007fe1bbc341f8 in g_main_context_iterate_unlocked (context=context@entry=0x7fe1a4000f60, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4490
#29 0x00007fe1bbc343a3 in g_main_context_iteration (context=0x7fe1a4000f60, may_block=1) at ../glib/gmain.c:4556
#30 0x00007fe1bd4fb80d in QEventDispatcherGlib::processEvents (this=0x5609ad8e3800, flags=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#31 0x00007fe1bd1e6063 in QEventLoop::exec (this=this@entry=0x7fff335b6e00, flags=..., flags@entry=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/global/qflags.h:77
#32 0x00007fe1bd1e1819 in QCoreApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1452
#33 0x00007fe1bd96919d in QGuiApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/gui/kernel/qguiapplication.cpp:1973
#34 0x00007fe1be76eb09 in QApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/widgets/kernel/qapplication.cpp:2575
#35 0x000056099a326ce4 in main (argc=<optimized out>, argv=<optimized out>)
at /usr/src/debug/plasma-discover-6.5.5-1.fc43.x86_64/notifier/main.cpp:93

This report is AI assisted.

Comment 1 Eshan 2026-01-21 13:04:34 UTC

Backtrace of another crash:
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007efce2a6d493 in __pthread_kill_internal (threadid=<optimized out>, signo=11) at pthread_kill.c:89
#2  0x00007efce2a1315e in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3  0x00007efce442e041 in KCrash::defaultCrashHandler (sig=11)
at /usr/src/debug/kf6-kcrash-6.22.0-1.fc43.x86_64/src/kcrash.cpp:605
#4  <signal handler called>
#5  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get (this=0x8)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/tools/qscopedpointer.h:110
#6  qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (ptr=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/global/qtclasshelpermacros.h:137
#7  QObject::d_func (this=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.h:110
#8  QObject::deleteLater (this=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:2462
#9  0x00007efcc4e70f75 in RpmOstreeNotifier::checkSystemUpdateClassic()::{lambda(int, QProcess::ExitStatus)#1}::operator()(int, QProcess::ExitStatus) const ()
at /usr/src/debug/plasma-discover-6.5.5-1.fc43.x86_64/libdiscover/backends/RpmOstreeBackend/RpmOstreeNotifier.cpp:180
#10 0x00007efce2fcc59a in QtPrivate::QSlotObjectBase::call (this=0x7efc9c093f90, r=0x7efca001ebe0, a=0x7ffdcffe58f0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobjectdefs_impl.h:461
#11 doActivate<false> (sender=0x7efca001ebe0, signal_index=<optimized out>, argv=argv@entry=0x7ffdcffe58f0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:4257
#12 0x00007efce2fc2e69 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7efce351efa0,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffdcffe58f0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:4317
#13 0x00007efce31b1df4 in QMetaObject::activate<void, int, QProcess::ExitStatus> (sender=<optimized out>, mo=0x7efce351efa0,
local_signal_index=1, ret=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobjectdefs.h:319
#14 QProcess::finished (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/redhat-linux-build/src/corelib/Core_autogen/include/moc_qprocess.cpp:266
#15 0x00007efce31b4495 in QProcessPrivate::processFinished (this=this@entry=0x55635bfdf490)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1261
--Type <RET> for more, q to quit, c to continue without paging--c
#16 0x00007efce31c0be2 in QProcessPrivate::waitForFinished (this=this@entry=0x55635bfdf490, deadline=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess_unix.cpp:1298
#17 0x00007efce31b3dea in QProcess::waitForFinished (this=this@entry=0x7efca001ebe0, msecs=msecs@entry=30000)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:2096
#18 0x00007efce2eab6ac in QProcess::~QProcess (this=0x7efca001ebe0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1330
#19 0x00007efce31b49d5 in QProcess::~QProcess (this=0x7efca001ebe0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1333
#20 0x00007efce2fbdecc in QObject::event (this=<optimized out>, e=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:1398
#21 0x00007efce44f6b9f in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x7efca001ebe0, e=0x55635c253ee0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/widgets/kernel/qapplication.cpp:3305
#22 0x00007efce2f614e8 in QCoreApplication::notifyInternal2 (receiver=0x7efca001ebe0, event=0x55635c253ee0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1109
#23 0x00007efce2f6174d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1549
#24 0x00007efce2f64b09 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55635be752b0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1904
#25 0x00007efce3283fcf in postEventSourceDispatch (s=0x55635be78ce0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#26 0x00007efce19b32a3 in g_main_dispatch (context=0x7efcc8000f60) at ../glib/gmain.c:3565
#27 g_main_context_dispatch_unlocked (context=0x7efcc8000f60) at ../glib/gmain.c:4425
#28 0x00007efce19bc1f8 in g_main_context_iterate_unlocked (context=context@entry=0x7efcc8000f60, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4490
#29 0x00007efce19bc3a3 in g_main_context_iteration (context=0x7efcc8000f60, may_block=1) at ../glib/gmain.c:4556
#30 0x00007efce328380d in QEventDispatcherGlib::processEvents (this=0x55635be86800, flags=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#31 0x00007efce2f6e063 in QEventLoop::exec (this=this@entry=0x7ffdcffe5f20, flags=..., flags@entry=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/global/qflags.h:77
#32 0x00007efce2f69819 in QCoreApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1452
#33 0x00007efce36f119d in QGuiApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/gui/kernel/qguiapplication.cpp:1973
#34 0x00007efce44f6b09 in QApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/widgets/kernel/qapplication.cpp:2575
#35 0x0000556352816ce4 in main (argc=<optimized out>, argv=<optimized out>)
at /usr/src/debug/plasma-discover-6.5.5-1.fc43.x86_64/notifier/main.cpp:93

Comment 2 Eshan 2026-01-21 13:11:22 UTC

Another bt:
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
#1  0x00007fa1c18b0493 in __pthread_kill_internal (threadid=<optimized out>, signo=11) at pthread_kill.c:89
#2  0x00007fa1c185615e in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26
#3  0x00007fa1c3271041 in KCrash::defaultCrashHandler (sig=11)
at /usr/src/debug/kf6-kcrash-6.21.0-1.fc43.x86_64/src/kcrash.cpp:605
#4  <signal handler called>
#5  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get (this=0x8)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/tools/qscopedpointer.h:110
#6  qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (ptr=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/global/qtclasshelpermacros.h:137
#7  QObject::d_func (this=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.h:110
#8  QObject::deleteLater (this=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:2462
#9  0x00007fa1a5e08126 in operator() (__closure=0x55d883336ca0, exitCode=9, exitStatus=QProcess::CrashExit)
at /usr/src/debug/plasma-discover-6.5.4-1.fc43.x86_64/libdiscover/backends/RpmOstreeBackend/RpmOstreeNotifier.cpp:335
#10 0x00007fa1c1e0f59a in QtPrivate::QSlotObjectBase::call (this=0x55d883336c90, r=0x55d883336810, a=0x7ffd3cb6c9a0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobjectdefs_impl.h:461
#11 doActivate<false> (sender=0x55d883336810, signal_index=<optimized out>, argv=argv@entry=0x7ffd3cb6c9a0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:4257
#12 0x00007fa1c1e05e69 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fa1c2361fa0,
local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd3cb6c9a0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:4317
#13 0x00007fa1c1ff4df4 in QMetaObject::activate<void, int, QProcess::ExitStatus> (sender=<optimized out>, mo=0x7fa1c2361fa0,
local_signal_index=1, ret=0x0) at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobjectdefs.h:319
#14 QProcess::finished (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/redhat-linux-build/src/corelib/Core_autogen/include/moc_qprocess.cpp:266
#15 0x00007fa1c1ff7495 in QProcessPrivate::processFinished (this=this@entry=0x55d88326ae50)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1261
#16 0x00007fa1c2003be2 in QProcessPrivate::waitForFinished (this=this@entry=0x55d88326ae50, deadline=...)
--Type <RET> for more, q to quit, c to continue without paging--c
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess_unix.cpp:1298
#17 0x00007fa1c1ff6dea in QProcess::waitForFinished (this=this@entry=0x55d883336810, msecs=msecs@entry=30000)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:2096
#18 0x00007fa1c1cee6ac in QProcess::~QProcess (this=0x55d883336810)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1330
#19 0x00007fa1c1ff79d5 in QProcess::~QProcess (this=0x55d883336810)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/io/qprocess.cpp:1333
#20 0x00007fa1c1e00ecc in QObject::event (this=<optimized out>, e=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qobject.cpp:1398
#21 0x00007fa1c3339b9f in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55d883336810, e=0x55d883326880)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/widgets/kernel/qapplication.cpp:3305
#22 0x00007fa1c1da44e8 in QCoreApplication::notifyInternal2 (receiver=0x55d883336810, event=0x55d883326880)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1109
#23 0x00007fa1c1da474d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1549
#24 0x00007fa1c1da7b09 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55d882f032b0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1904
#25 0x00007fa1c20c6fcf in postEventSourceDispatch (s=0x55d882f06ce0)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:246
#26 0x00007fa1c07f62a3 in g_main_dispatch (context=0x7fa1a8000f60) at ../glib/gmain.c:3565
#27 g_main_context_dispatch_unlocked (context=0x7fa1a8000f60) at ../glib/gmain.c:4425
#28 0x00007fa1c07ff1f8 in g_main_context_iterate_unlocked (context=context@entry=0x7fa1a8000f60, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4490
#29 0x00007fa1c07ff3a3 in g_main_context_iteration (context=0x7fa1a8000f60, may_block=1) at ../glib/gmain.c:4556
#30 0x00007fa1c20c680d in QEventDispatcherGlib::processEvents (this=0x55d882f06cb0, flags=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:399
#31 0x00007fa1c1db1063 in QEventLoop::exec (this=this@entry=0x7ffd3cb6cfd0, flags=..., flags@entry=...)
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/global/qflags.h:77
#32 0x00007fa1c1dac819 in QCoreApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/corelib/kernel/qcoreapplication.cpp:1452
#33 0x00007fa1c253419d in QGuiApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/gui/kernel/qguiapplication.cpp:1973
#34 0x00007fa1c3339b09 in QApplication::exec ()
at /usr/src/debug/qt6-qtbase-6.10.1-3.fc43.x86_64/src/widgets/kernel/qapplication.cpp:2575
#35 0x000055d85c479ce4 in main (argc=<optimized out>, argv=<optimized out>)
at /usr/src/debug/plasma-discover-6.5.5-1.fc43.x86_64/notifier/main.cpp:93

Comment 3 Bug Janitor Service 2026-01-21 13:46:40 UTC

A possibly relevant merge request was started @ https://invent.kde.org/plasma/discover/-/merge_requests/1243