Bug 421732

Application: plasmashell (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-9-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
- What I was doing when the application crashed:
Clicked plasmoid Hoppla SA (hue light control) symbol to start menu of plasmoid.
Than it crashed

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f869b4fe840 (LWP 1106))]

Thread 7 (Thread 0x7f8668b9a700 (LWP 1503)):
#0  0x00007f86a0501819 in __GI___poll (fds=0x7f8664004e10, nfds=1, timeout=9023) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f869e5f6136 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8664004e10, timeout=<optimized out>, context=0x7f8664000bf0) at ../../../glib/gmain.c:4221
#2  0x00007f869e5f6136 in g_main_context_iterate (context=context@entry=0x7f8664000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3915
#3  0x00007f869e5f625c in g_main_context_iteration (context=0x7f8664000bf0, may_block=may_block@entry=1) at ../../../glib/gmain.c:3981
#4  0x00007f86a0a13743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8664000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f86a09c115b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8668b99d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f86a0810e76 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f86a081aa67 in QThreadPrivate::start(void*) (arg=0x55a1e8399d30) at thread/qthread_unix.cpp:367
#8  0x00007f869f736fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f86a050c4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f86860af700 (LWP 1289)):
#0  0x00007f86a0501819 in __GI___poll (fds=0x7f867c0055d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f869e5f6136 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f867c0055d0, timeout=<optimized out>, context=0x7f867c000bf0) at ../../../glib/gmain.c:4221
#2  0x00007f869e5f6136 in g_main_context_iterate (context=context@entry=0x7f867c000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3915
#3  0x00007f869e5f625c in g_main_context_iteration (context=0x7f867c000bf0, may_block=may_block@entry=1) at ../../../glib/gmain.c:3981
#4  0x00007f86a0a13743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f867c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f86a09c115b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f86860aed20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f86a0810e76 in QThread::exec() (this=this@entry=0x7f868c0157a0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f86a23c6476 in QQuickPixmapReader::run() (this=0x7f868c0157a0) at util/qquickpixmapcache.cpp:934
#8  0x00007f86a081aa67 in QThreadPrivate::start(void*) (arg=0x7f868c0157a0) at thread/qthread_unix.cpp:367
#9  0x00007f869f736fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f86a050c4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f8691cb1700 (LWP 1238)):
#0  0x00007f869f73d00c in futex_wait_cancelable (private=0, expected=0, futex_word=0x55a1e462283c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f869f73d00c in __pthread_cond_wait_common (abstime=0x0, mutex=0x55a1e46227e8, cond=0x55a1e4622810) at pthread_cond_wait.c:502
#2  0x00007f869f73d00c in __pthread_cond_wait (cond=0x55a1e4622810, mutex=0x55a1e46227e8) at pthread_cond_wait.c:655
#3  0x00007f869228ae83 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f869228abd7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f869f736fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f86a050c4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f8693fff700 (LWP 1209)):
#0  0x00007f86a0501819 in __GI___poll (fds=0x7f8688004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f869e5f6136 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f8688004a00, timeout=<optimized out>, context=0x7f8688000bf0) at ../../../glib/gmain.c:4221
#2  0x00007f869e5f6136 in g_main_context_iterate (context=context@entry=0x7f8688000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3915
#3  0x00007f869e5f625c in g_main_context_iteration (context=0x7f8688000bf0, may_block=may_block@entry=1) at ../../../glib/gmain.c:3981
#4  0x00007f86a0a13743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f8688000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f86a09c115b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8693ffed40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f86a0810e76 in QThread::exec() (this=this@entry=0x55a1e44603f0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f86a2141c65 in QQmlThreadPrivate::run() (this=0x55a1e44603f0) at qml/ftw/qqmlthread.cpp:148
#8  0x00007f86a081aa67 in QThreadPrivate::start(void*) (arg=0x55a1e44603f0) at thread/qthread_unix.cpp:367
#9  0x00007f869f736fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f86a050c4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f86999fd700 (LWP 1144)):
#0  0x00007ffd42197c1e in clock_gettime ()
#1  0x00007f86a0519ff6 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7f86999fca70) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f86a0a13061 in qt_clock_gettime (ts=0x7f86999fca70, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#3  0x00007f86a0a13061 in do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  0x00007f86a0a13061 in qt_gettime() () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007f86a0a11899 in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7f868c004cf0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007f86a0a11e95 in QTimerInfoList::timerWait(timespec&) (this=0x7f868c004cf0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007f86a0a134be in timerSourcePrepareHelper (timeout=0x7f86999fcb54, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:161
#8  0x00007f86a0a134be in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f86999fcb54) at kernel/qeventdispatcher_glib.cpp:165
#9  0x00007f869e5f5669 in g_main_context_prepare (context=context@entry=0x7f868c000bf0, priority=priority@entry=0x7f86999fcbe0) at ../../../glib/gmain.c:3492
#10 0x00007f869e5f606b in g_main_context_iterate (context=context@entry=0x7f868c000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3900
#11 0x00007f869e5f625c in g_main_context_iteration (context=0x7f868c000bf0, may_block=may_block@entry=1) at ../../../glib/gmain.c:3981
#12 0x00007f86a0a13743 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f868c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#13 0x00007f86a09c115b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f86999fcd30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#14 0x00007f86a0810e76 in QThread::exec() (this=this@entry=0x7f86a12ccd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#15 0x00007f86a124d545 in QDBusConnectionManager::run() (this=0x7f86a12ccd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#16 0x00007f86a081aa67 in QThreadPrivate::start(void*) (arg=0x7f86a12ccd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367
#17 0x00007f869f736fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#18 0x00007f86a050c4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f869a752700 (LWP 1130)):
#0  0x00007f86a0501819 in __GI___poll (fds=fds@entry=0x7f869a751c78, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f86a2812cf7 in poll (__timeout=-1, __nfds=1, __fds=0x7f869a751c78) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x00007f86a2812cf7 in _xcb_conn_wait (c=c@entry=0x55a1e4396140, cond=cond@entry=0x55a1e4396180, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:479
#3  0x00007f86a281491a in xcb_wait_for_event (c=0x55a1e4396140) at ../../src/xcb_in.c:697
#4  0x00007f869b0b7d79 in QXcbEventReader::run() (this=0x55a1e43a0130) at qxcbconnection.h:409
#5  0x00007f86a081aa67 in QThreadPrivate::start(void*) (arg=0x55a1e43a0130) at thread/qthread_unix.cpp:367
#6  0x00007f869f736fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007f86a050c4cf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f869b4fe840 (LWP 1106)):
[KCrash Handler]
#6  0x00007f868837e880 in  ()
#7  0x00007f86a20fc0ec in QJSEnginePrivate::cache(QObject*) (obj=0x55a1ec3a6530, this=0x55a1e43ae8c0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsapi/qjsengine_p.h:169
#8  0x00007f86a20fc0ec in QJSEnginePrivate::cache(QObject*) (obj=0x55a1ec3a6530, this=0x55a1e43ae8c0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsapi/qjsengine_p.h:163
#9  0x00007f86a20fc0ec in qQmlPropertyCacheProperty<QV4::String const*>(QJSEngine*, QObject*, QV4::String const*, QQmlContextData*, QQmlPropertyData&) (engine=<optimized out>, obj=obj@entry=0x55a1ec3a6530, name=name@entry=0x7f8698032448, context=context@entry=0x55a1ed5553e0, local=...) at qml/qqmlpropertycache.cpp:1068
#10 0x00007f86a20f5c95 in QQmlPropertyCache::property(QJSEngine*, QObject*, QV4::String const*, QQmlContextData*, QQmlPropertyData&) (engine=<optimized out>, obj=obj@entry=0x55a1ec3a6530, name=name@entry=0x7f8698032448, context=context@entry=0x55a1ed5553e0, local=...) at qml/qqmlpropertycache.cpp:1093
#11 0x00007f86a20576fc in QV4::QObjectWrapper::findProperty(QV4::ExecutionEngine*, QObject*, QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QQmlPropertyData*) (engine=engine@entry=0x55a1e4418610, o=o@entry=0x55a1ec3a6530, qmlContext=qmlContext@entry=0x55a1ed5553e0, name=name@entry=0x7f8698032448, revisionMode=revisionMode@entry=QV4::QObjectWrapper::CheckRevision, local=local@entry=0x7ffd42178c50) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/v8/qv8engine_p.h:173
#12 0x00007f86a205ba2e in QV4::QObjectWrapper::getQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*) (engine=engine@entry=0x55a1e4418610, qmlContext=qmlContext@entry=0x55a1ed5553e0, object=0x55a1ec3a6530, name=name@entry=0x7f8698032448, revisionMode=revisionMode@entry=QV4::QObjectWrapper::CheckRevision, hasProperty=hasProperty@entry=0x7ffd42178cf0) at jsruntime/qv4qobjectwrapper.cpp:368
#13 0x00007f86a1ffed13 in QV4::QQmlContextWrapper::get(QV4::Managed const*, QV4::String*, bool*) (m=<optimized out>, name=0x7f8698032448, hasProperty=0x7ffd42178db0) at jsruntime/qv4qmlcontext.cpp:211
#14 0x00007f86a1fbc19a in QV4::Object::get(QV4::String*, bool*) const (hasProperty=0x7ffd42178db0, name=0x7f8698032448, this=0x7f8698032450) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/memory/qv4heap_p.h:101
#15 0x00007f86a1fbc19a in QV4::ExecutionContext::getPropertyAndBase(QV4::String*, QV4::Value*) (this=0x7f86980323b8, name=0x7f8698032448, base=base@entry=0x7f8698032440) at jsruntime/qv4context.cpp:343
#16 0x00007f86a2074fa2 in QV4::Runtime::method_callName(QV4::ExecutionEngine*, int, QV4::Value*, int) (engine=0x55a1e4418610, nameIndex=107, argv=0x7f86980323f8, argc=1) at jsruntime/qv4value_p.h:373
#17 0x00007f866831f653 in  ()
#18 0x0000000000000000 in  ()
[Inferior 1 (process 1106) detached]

Reported using DrKonqi