Bug 427963 - KRunner Crashes on startup
Summary: KRunner Crashes on startup
Status: RESOLVED NOT A BUG
Alias: None
Product: krunner
Classification: Plasma
Component: general (show other bugs)
Version: 5.20.0
Platform: Arch Linux Linux
: NOR crash
Target Milestone: ---
Assignee: Alexander Lohnau
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2020-10-19 07:59 UTC by nikmeier
Modified: 2020-10-24 17:23 UTC (History)
1 user (show)

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


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Description nikmeier 2020-10-19 07:59:11 UTC
Application: krunner (5.20.0)

Qt Version: 5.15.1
Frameworks Version: 5.75.0
Operating System: Linux 5.9.1-arch1-1 x86_64
Windowing system: X11
Distribution: Arch Linux

-- Information about the crash:
- What I was doing when the application crashed:
I tried to start Krunner. It fails regardless of typing in the command in shell, or hitting the shortcut. It happened after I updated my system to the latest plasma packages. (everything is up to date, I even tried to downgrade KRunner)

The crash can be reproduced every time.

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault

[New LWP 4596]
[New LWP 4600]
[New LWP 4601]
[New LWP 4602]
[New LWP 4603]
[New LWP 4604]
[New LWP 4605]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007fb10d6c26a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
[Current thread is 1 (Thread 0x7fb109fa8840 (LWP 4595))]

Thread 8 (Thread 0x7fb0f61d4640 (LWP 4605)):
[KCrash Handler]
#4  QV4::CompiledData::TypeReferenceMap::collectFromObject<QV4::CompiledData::Object> (obj=0x7fb100017018, this=0x7fb0d8217eb8) at /usr/include/qt/QtCore/qendian.h:288
#5  QQmlTypeData::tryLoadFromDiskCache (this=this@entry=0x7fb0d8217e10) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:162
#6  0x00007fb10f99e601 in QQmlTypeData::dataReceived (this=0x7fb0d8217e10, data=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:582
#7  0x00007fb10f9e7508 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8217e10, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:447
#8  0x00007fb10f9e7c36 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8217e10, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#9  0x00007fb10f9e89f2 in QQmlTypeLoader::loadThread (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8217e10) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#10 0x00007fb10f9e8db6 in PlainLoader::loadThread (blob=0x7fb0d8217e10, loader=0x5653ee144588, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#11 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fb0d8217e10, this=0x5653ee144588) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#12 QQmlTypeLoader::load (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8217e10, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#13 0x00007fb10f9e95b9 in QQmlTypeLoader::getType (this=this@entry=0x5653ee144588, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#14 0x00007fb10f99bc98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fb0d81c2580) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#15 0x00007fb10f99ea1d in QQmlTypeData::allDependenciesDone (this=0x7fb0d81c2580) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#16 0x00007fb10f9e77d3 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d81c2580, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#17 0x00007fb10f9e7c36 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d81c2580, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#18 0x00007fb10f9e89f2 in QQmlTypeLoader::loadThread (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d81c2580) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#19 0x00007fb10f9e8db6 in PlainLoader::loadThread (blob=0x7fb0d81c2580, loader=0x5653ee144588, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#20 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fb0d81c2580, this=0x5653ee144588) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#21 QQmlTypeLoader::load (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d81c2580, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#22 0x00007fb10f9e95b9 in QQmlTypeLoader::getType (this=this@entry=0x5653ee144588, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#23 0x00007fb10f99bc98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fb0d80efd30) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#24 0x00007fb10f99ea1d in QQmlTypeData::allDependenciesDone (this=0x7fb0d80efd30) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#25 0x00007fb10f9e77d3 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80efd30, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#26 0x00007fb10f9e7c36 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80efd30, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#27 0x00007fb10f9e89f2 in QQmlTypeLoader::loadThread (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80efd30) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#28 0x00007fb10f9e8db6 in PlainLoader::loadThread (blob=0x7fb0d80efd30, loader=0x5653ee144588, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#29 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fb0d80efd30, this=0x5653ee144588) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#30 QQmlTypeLoader::load (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80efd30, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#31 0x00007fb10f9e95b9 in QQmlTypeLoader::getType (this=this@entry=0x5653ee144588, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#32 0x00007fb10f99bc98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fb0d80dc890) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#33 0x00007fb10f99ea1d in QQmlTypeData::allDependenciesDone (this=0x7fb0d80dc890) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#34 0x00007fb10f9e77d3 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80dc890, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#35 0x00007fb10f9e7c36 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80dc890, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#36 0x00007fb10f9e89f2 in QQmlTypeLoader::loadThread (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80dc890) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#37 0x00007fb10f9e8db6 in PlainLoader::loadThread (blob=0x7fb0d80dc890, loader=0x5653ee144588, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#38 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fb0d80dc890, this=0x5653ee144588) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#39 QQmlTypeLoader::load (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d80dc890, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#40 0x00007fb10f9e95b9 in QQmlTypeLoader::getType (this=this@entry=0x5653ee144588, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#41 0x00007fb10f99bc98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fb0d8003a00) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#42 0x00007fb10f99ea1d in QQmlTypeData::allDependenciesDone (this=0x7fb0d8003a00) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#43 0x00007fb10f9e77d3 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8003a00, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#44 0x00007fb10f9e7c36 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8003a00, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#45 0x00007fb10f9e89f2 in QQmlTypeLoader::loadThread (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8003a00) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#46 0x00007fb10f9e8db6 in PlainLoader::loadThread (blob=0x7fb0d8003a00, loader=0x5653ee144588, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#47 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fb0d8003a00, this=0x5653ee144588) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#48 QQmlTypeLoader::load (this=this@entry=0x5653ee144588, blob=blob@entry=0x7fb0d8003a00, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#49 0x00007fb10f9e95b9 in QQmlTypeLoader::getType (this=this@entry=0x5653ee144588, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#50 0x00007fb10f99bc98 in QQmlTypeData::resolveTypes (this=this@entry=0x5653ee22b990) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#51 0x00007fb10f99ea1d in QQmlTypeData::allDependenciesDone (this=0x5653ee22b990) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#52 0x00007fb10f9e77d3 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x5653ee22b990, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#53 0x00007fb10f9e7c36 in QQmlTypeLoader::setData (this=this@entry=0x5653ee144588, blob=blob@entry=0x5653ee22b990, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#54 0x00007fb10f9e89f2 in QQmlTypeLoader::loadThread (this=0x5653ee144588, blob=blob@entry=0x5653ee22b990) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#55 0x00007fb10f9a664e in QQmlTypeLoaderThread::loadThread (this=<optimized out>, b=0x5653ee22b990) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloaderthread.cpp:162
#56 0x00007fb10fa5c81a in QQmlThreadPrivate::threadEvent (this=this@entry=0x5653ee16f1f0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:204
#57 0x00007fb10fa5d082 in QQmlThreadPrivate::event (this=0x5653ee16f1f0, e=0x5653ee1b0850) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:142
#58 0x00007fb10f040752 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5653ee16f1f0, e=0x5653ee1b0850) at kernel/qapplication.cpp:3630
#59 0x00007fb10e45ccda in QCoreApplication::notifyInternal2 (receiver=0x5653ee16f1f0, event=0x5653ee1b0850) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#60 0x00007fb10e45f7d3 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5653ee168de0) at kernel/qcoreapplication.cpp:1817
#61 0x00007fb10e4b6304 in postEventSourceDispatch (s=0x7fb0d80047b0) at kernel/qeventdispatcher_glib.cpp:277
#62 0x00007fb10cacc924 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#63 0x00007fb10cb20621 in ?? () from /usr/lib/libglib-2.0.so.0
#64 0x00007fb10cacb131 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#65 0x00007fb10e4b5941 in QEventDispatcherGlib::processEvents (this=0x7fb0d8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#66 0x00007fb10e45b65c in QEventLoop::exec (this=this@entry=0x7fb0f61d3ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#67 0x00007fb10e275ca2 in QThread::exec (this=this@entry=0x5653ee16f1f0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#68 0x00007fb10fa5c4b9 in QQmlThreadPrivate::run (this=0x5653ee16f1f0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:155
#69 0x00007fb10e276e8f in QThreadPrivate::start (arg=0x5653ee16f1f0) at thread/qthread_unix.cpp:329
#70 0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#71 0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fb100f7e640 (LWP 4604)):
#0  0x00007fb10d6c26a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb102d9740c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fb102d97308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fb10177f640 (LWP 4603)):
#0  0x00007fb10d6c26a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb102d9740c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fb102d97308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fb101f80640 (LWP 4602)):
#0  0x00007fb10d6c26a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb102d9740c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fb102d97308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fb102781640 (LWP 4601)):
#0  0x00007fb10d6c26a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb102d9740c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fb102d97308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fb108cbb640 (LWP 4600)):
#0  0x00007fb10def3efc in read () from /usr/lib/libc.so.6
#1  0x00007fb10caccf70 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007fb10cb204b2 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fb10cacb131 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fb10e4b595c in QEventDispatcherGlib::processEvents (this=0x7fb0fc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fb10e45b65c in QEventLoop::exec (this=this@entry=0x7fb108cbac70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fb10e275ca2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fb10ee77098 in QDBusConnectionManager::run (this=0x7fb10eee5060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#8  0x00007fb10e276e8f in QThreadPrivate::start (arg=0x7fb10eee5060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#9  0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fb109992640 (LWP 4596)):
#0  0x00007fb10def846f in poll () from /usr/lib/libc.so.6
#1  0x00007fb10dd3663b in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fb10dd3837b in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fb109b58f61 in QXcbEventQueue::run (this=0x5653eddc8320) at qxcbeventqueue.cpp:228
#4  0x00007fb10e276e8f in QThreadPrivate::start (arg=0x5653eddc8320) at thread/qthread_unix.cpp:329
#5  0x00007fb10d6bc3e9 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb10df03293 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fb109fa8840 (LWP 4595)):
#0  0x00007fb10d6c26a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb10e27d0d4 in QWaitConditionPrivate::wait (deadline=..., deadline=..., this=0x5653ee0dfd20) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=this@entry=0x5653ee16f268, mutex=0x5653ee16f260, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007fb10fa5cc4f in QQmlThreadPrivate::wait (this=<optimized out>) at /usr/include/qt/QtCore/qdeadlinetimer.h:68
#4  QQmlThread::internalCallMethodInThread (this=0x5653ee192ed0, message=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:353
#5  0x00007fb10f9a6887 in QQmlThread::callMethodInThread<QQmlDataBlob*, QQmlDataBlob*, QQmlTypeLoaderThread> (arg=<synthetic pointer>: <optimized out>, Member=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/ftw/qqmlthread_p.h:161
#6  QQmlTypeLoaderThread::load (this=<optimized out>, b=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloaderthread.cpp:83
#7  0x00005653ee144588 in ?? ()
#8  0x00005653ee22b990 in ?? ()
#9  0x00007ffd292d8178 in ?? ()
#10 0x00007fb10f9e95b9 in QQmlTypeLoader::getType (this=0x7ffd292d8200, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#11 0x00007fb10f9c33aa in QQmlComponentPrivate::loadUrl (this=0x5653ee2280a0, newUrl=..., mode=QQmlComponent::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmlengine.h:172
#12 0x00007fb11013190b in ?? () from /usr/lib/libKF5Declarative.so.5
#13 0x00005653ed0a3261 in ?? ()
#14 0x00005653ed0a04fa in ?? ()
#15 0x00007fb10de2b152 in __libc_start_main () from /usr/lib/libc.so.6
#16 0x00005653ed0a077e in ?? ()
[Inferior 1 (process 4595) detached]

Reported using DrKonqi
Comment 1 Alexander Lohnau 2020-10-19 08:24:21 UTC
Can you please check out if the "Search" plasmoid works as expected.

And is there already a crash if you type "krunner --daemon" and don't invoke it?
Comment 2 nikmeier 2020-10-19 09:41:36 UTC
The search plugin works as expected, I added one to the desktop and if I click it, I can use it without any problems.

-- Krunner --daemon gives a slightly different backtrace:
Application: krunner (krunner), signal: Segmentation fault

[New LWP 20460]
[New LWP 20461]
[New LWP 20462]
[New LWP 20463]
[New LWP 20464]
[New LWP 20465]
[New LWP 20466]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
0x00007fabb83c56a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
[Current thread is 1 (Thread 0x7fabb4cab840 (LWP 20459))]

Thread 8 (Thread 0x7fab9d1d2640 (LWP 20466)):
[KCrash Handler]
#4  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x65736145) at /usr/include/c++/10.2.0/bits/atomic_base.h:420
#5  QAtomicOps<int>::loadRelaxed<int> (_q_value=...) at /usr/include/qt/QtCore/qatomic_cxx11.h:239
#6  QBasicAtomicInteger<int>::loadRelaxed (this=0x65736145) at /usr/include/qt/QtCore/qbasicatomic.h:107
#7  QtPrivate::RefCount::ref (this=0x65736145) at /usr/include/qt/QtCore/qrefcount.h:55
#8  QString::QString (other=..., this=0x7fab9d1d0690) at /usr/include/qt/QtCore/qstring.h:1089
#9  QV4::CompiledData::CompilationUnit::stringAt (this=<optimized out>, index=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/common/qv4compileddata_p.h:1301
#10 0x00007fabba69cf4e in QQmlTypeData::tryLoadFromDiskCache (this=this@entry=0x7fab8829c7b0) at /usr/include/qt/QtCore/qendian.h:288
#11 0x00007fabba6a1601 in QQmlTypeData::dataReceived (this=0x7fab8829c7b0, data=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:582
#12 0x00007fabba6ea508 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8829c7b0, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:447
#13 0x00007fabba6eac36 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8829c7b0, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#14 0x00007fabba6eb9f2 in QQmlTypeLoader::loadThread (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8829c7b0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#15 0x00007fabba6ebdb6 in PlainLoader::loadThread (blob=0x7fab8829c7b0, loader=0x55c94b175e68, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#16 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fab8829c7b0, this=0x55c94b175e68) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#17 QQmlTypeLoader::load (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8829c7b0, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#18 0x00007fabba6ec5b9 in QQmlTypeLoader::getType (this=this@entry=0x55c94b175e68, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#19 0x00007fabba69ec98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fab882d5dd0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#20 0x00007fabba6a1a1d in QQmlTypeData::allDependenciesDone (this=0x7fab882d5dd0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#21 0x00007fabba6ea7d3 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab882d5dd0, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#22 0x00007fabba6eac36 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab882d5dd0, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#23 0x00007fabba6eb9f2 in QQmlTypeLoader::loadThread (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab882d5dd0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#24 0x00007fabba6ebdb6 in PlainLoader::loadThread (blob=0x7fab882d5dd0, loader=0x55c94b175e68, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#25 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fab882d5dd0, this=0x55c94b175e68) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#26 QQmlTypeLoader::load (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab882d5dd0, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#27 0x00007fabba6ec5b9 in QQmlTypeLoader::getType (this=this@entry=0x55c94b175e68, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#28 0x00007fabba69ec98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fab8828dff0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#29 0x00007fabba6a1a1d in QQmlTypeData::allDependenciesDone (this=0x7fab8828dff0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#30 0x00007fabba6ea7d3 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8828dff0, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#31 0x00007fabba6eac36 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8828dff0, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#32 0x00007fabba6eb9f2 in QQmlTypeLoader::loadThread (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8828dff0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#33 0x00007fabba6ebdb6 in PlainLoader::loadThread (blob=0x7fab8828dff0, loader=0x55c94b175e68, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#34 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fab8828dff0, this=0x55c94b175e68) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#35 QQmlTypeLoader::load (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab8828dff0, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#36 0x00007fabba6ec5b9 in QQmlTypeLoader::getType (this=this@entry=0x55c94b175e68, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#37 0x00007fabba69ec98 in QQmlTypeData::resolveTypes (this=this@entry=0x7fab88250b10) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#38 0x00007fabba6a1a1d in QQmlTypeData::allDependenciesDone (this=0x7fab88250b10) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#39 0x00007fabba6ea7d3 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab88250b10, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#40 0x00007fabba6eac36 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab88250b10, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#41 0x00007fabba6eb9f2 in QQmlTypeLoader::loadThread (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab88250b10) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#42 0x00007fabba6ebdb6 in PlainLoader::loadThread (blob=0x7fab88250b10, loader=0x55c94b175e68, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:146
#43 QQmlTypeLoader::doLoad<PlainLoader> (loader=..., mode=QQmlTypeLoader::PreferSynchronous, blob=0x7fab88250b10, this=0x55c94b175e68) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:205
#44 QQmlTypeLoader::load (this=this@entry=0x55c94b175e68, blob=blob@entry=0x7fab88250b10, mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:237
#45 0x00007fabba6ec5b9 in QQmlTypeLoader::getType (this=this@entry=0x55c94b175e68, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#46 0x00007fabba69ec98 in QQmlTypeData::resolveTypes (this=this@entry=0x55c94b1f78a0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmldatablob_p.h:95
#47 0x00007fabba6a1a1d in QQmlTypeData::allDependenciesDone (this=0x55c94b1f78a0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypedata.cpp:745
#48 0x00007fabba6ea7d3 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x55c94b1f78a0, d=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:450
#49 0x00007fabba6eac36 in QQmlTypeLoader::setData (this=this@entry=0x55c94b175e68, blob=blob@entry=0x55c94b1f78a0, fileName=...) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:437
#50 0x00007fabba6eb9f2 in QQmlTypeLoader::loadThread (this=0x55c94b175e68, blob=blob@entry=0x55c94b1f78a0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:299
#51 0x00007fabba6a964e in QQmlTypeLoaderThread::loadThread (this=<optimized out>, b=0x55c94b1f78a0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloaderthread.cpp:162
#52 0x00007fabba75f81a in QQmlThreadPrivate::threadEvent (this=this@entry=0x55c94b1b94d0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:204
#53 0x00007fabba760082 in QQmlThreadPrivate::event (this=0x55c94b1b94d0, e=0x55c94b23ebd0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:142
#54 0x00007fabb9d43752 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55c94b1b94d0, e=0x55c94b23ebd0) at kernel/qapplication.cpp:3630
#55 0x00007fabb915fcda in QCoreApplication::notifyInternal2 (receiver=0x55c94b1b94d0, event=0x55c94b23ebd0) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#56 0x00007fabb91627d3 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55c94b1211d0) at kernel/qcoreapplication.cpp:1817
#57 0x00007fabb91b9304 in postEventSourceDispatch (s=0x7fab880047b0) at kernel/qeventdispatcher_glib.cpp:277
#58 0x00007fabb77cf924 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#59 0x00007fabb7823621 in ?? () from /usr/lib/libglib-2.0.so.0
#60 0x00007fabb77ce131 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#61 0x00007fabb91b8941 in QEventDispatcherGlib::processEvents (this=0x7fab88000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#62 0x00007fabb915e65c in QEventLoop::exec (this=this@entry=0x7fab9d1d1ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#63 0x00007fabb8f78ca2 in QThread::exec (this=this@entry=0x55c94b1b94d0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#64 0x00007fabba75f4b9 in QQmlThreadPrivate::run (this=0x55c94b1b94d0) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:155
#65 0x00007fabb8f79e8f in QThreadPrivate::start (arg=0x55c94b1b94d0) at thread/qthread_unix.cpp:329
#66 0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#67 0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fab9e3e3640 (LWP 20465)):
#0  0x00007fabb83c56a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fabb1e1540c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fabb1e15308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fab9ebe4640 (LWP 20464)):
#0  0x00007fabb83c56a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fabb1e1540c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fabb1e15308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fabb0d28640 (LWP 20463)):
#0  0x00007fabb83c56a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fabb1e1540c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fabb1e15308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fabb1529640 (LWP 20462)):
#0  0x00007fabb83c56a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fabb1e1540c in ?? () from /usr/lib/dri/iris_dri.so
#2  0x00007fabb1e15308 in ?? () from /usr/lib/dri/iris_dri.so
#3  0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fabb39be640 (LWP 20461)):
#0  0x00007fabb781d234 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fabb7823418 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fabb77ce131 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fabb91b895c in QEventDispatcherGlib::processEvents (this=0x7faba4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fabb915e65c in QEventLoop::exec (this=this@entry=0x7fabb39bdc70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007fabb8f78ca2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fabb9b7a098 in QDBusConnectionManager::run (this=0x7fabb9be8060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#7  0x00007fabb8f79e8f in QThreadPrivate::start (arg=0x7fabb9be8060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#8  0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fabb4695640 (LWP 20460)):
#0  0x00007fabb8bfb46f in poll () from /usr/lib/libc.so.6
#1  0x00007fabb8a3963b in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fabb8a3b37b in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fabb485bf61 in QXcbEventQueue::run (this=0x55c94ae16340) at qxcbeventqueue.cpp:228
#4  0x00007fabb8f79e8f in QThreadPrivate::start (arg=0x55c94ae16340) at thread/qthread_unix.cpp:329
#5  0x00007fabb83bf3e9 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fabb8c06293 in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fabb4cab840 (LWP 20459)):
#0  0x00007fabb83c56a2 in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fabb8f800d4 in QWaitConditionPrivate::wait (deadline=..., deadline=..., this=0x55c94b11c310) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=this@entry=0x55c94b1b9548, mutex=0x55c94b1b9540, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007fabba75fc4f in QQmlThreadPrivate::wait (this=<optimized out>) at /usr/include/qt/QtCore/qdeadlinetimer.h:68
#4  QQmlThread::internalCallMethodInThread (this=0x55c94b22eb90, message=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/ftw/qqmlthread.cpp:353
#5  0x00007fabba6a9887 in QQmlThread::callMethodInThread<QQmlDataBlob*, QQmlDataBlob*, QQmlTypeLoaderThread> (arg=<synthetic pointer>: <optimized out>, Member=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/ftw/qqmlthread_p.h:161
#6  QQmlTypeLoaderThread::load (this=<optimized out>, b=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloaderthread.cpp:83
#7  0x000055c94b175e68 in ?? ()
#8  0x000055c94b1f78a0 in ?? ()
#9  0x00007ffc75fcbaf8 in ?? ()
#10 0x00007fabba6ec5b9 in QQmlTypeLoader::getType (this=0x7ffc75fcbb80, unNormalizedUrl=..., mode=mode@entry=QQmlTypeLoader::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmltypeloader.cpp:825
#11 0x00007fabba6c63aa in QQmlComponentPrivate::loadUrl (this=0x55c94b1fd1d0, newUrl=..., mode=QQmlComponent::PreferSynchronous) at /usr/src/debug/qtdeclarative-everywhere-src-5.15.1/src/qml/qml/qqmlengine.h:172
#12 0x00007fabbae3490b in ?? () from /usr/lib/libKF5Declarative.so.5
#13 0x000055c949767261 in ?? ()
#14 0x000055c9497644fa in ?? ()
#15 0x00007fabb8b2e152 in __libc_start_main () from /usr/lib/libc.so.6
#16 0x000055c94976477e in ?? ()
[Inferior 1 (process 20459) detached]
Comment 3 nikmeier 2020-10-24 17:23:30 UTC
Closing this since I can't reproduce it on a clean machine.
To anyone getting the same error, for me it worked to follow the steps in the ArchWiki on resolving errors with Plasma.

$ rm ~/.config/Trolltech.conf
$ kbuildsycoca5 --noincremental
$ rm -rf ~/.cache/*