https://bugs.kde.org/show_bug.cgi?id=406092

            Bug ID: 406092
           Summary: System settings crash
           Product: systemsettings
           Version: 5.15.3
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: tikhonov.yuriy...@gmail.com
  Target Milestone: ---

Application: systemsettings5 (5.15.3)
 (Compiled from sources)
Qt Version: 5.12.0
Frameworks Version: 5.56.0
Operating System: Linux 4.18.0-16-generic x86_64
Distribution: KDE neon User Edition 5.15

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to add the 3rd language in Regional settings (french) and System
settings crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8c653be680 (LWP 2976))]

Thread 6 (Thread 0x7f8c276eb700 (LWP 2984)):
#0  0x00007f8c60932bf9 in __GI___poll (fds=0x7f8c20004e00, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f8c5999e539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8c5999e64c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8c6127515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8c6121664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8c6103e41a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8c5edfa2e5 in QQmlThreadPrivate::run (this=0x55b3337ca390) at
qml/ftw/qqmlthread.cpp:148
#7  0x00007f8c6103fbc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8c5bd5c6db in start_thread (arg=0x7f8c276eb700) at
pthread_create.c:463
#9  0x00007f8c6093f88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f8c2d7b3700 (LWP 2983)):
#0  0x00007f8c6092e0b4 in __GI___libc_read (fd=14, buf=0x7f8c2d7b2b30,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f8c599e2cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8c5999e027 in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8c5999e4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8c5999e64c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8c6127515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8c6121664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8c6103e41a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8c5edfa2e5 in QQmlThreadPrivate::run (this=0x55b32dbebea0) at
qml/ftw/qqmlthread.cpp:148
#9  0x00007f8c6103fbc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f8c5bd5c6db in start_thread (arg=0x7f8c2d7b3700) at
pthread_create.c:463
#11 0x00007f8c6093f88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f8c364a3700 (LWP 2981)):
#0  0x00007f8c60932bf9 in __GI___poll (fds=0x7f8c30004a00, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f8c5999e539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8c5999e64c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8c6127515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f8c6121664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f8c6103e41a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8c5edfa2e5 in QQmlThreadPrivate::run (this=0x55b32d8b8700) at
qml/ftw/qqmlthread.cpp:148
#7  0x00007f8c6103fbc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8c5bd5c6db in start_thread (arg=0x7f8c364a3700) at
pthread_create.c:463
#9  0x00007f8c6093f88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f8c42770700 (LWP 2979)):
#0  0x00007f8c5bd629f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55b32d50bd9c) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55b32d50bd48,
cond=0x55b32d50bd70) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55b32d50bd70, mutex=0x55b32d50bd48) at
pthread_cond_wait.c:655
#3  0x00007f8c436e4dcb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f8c436e4af7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f8c5bd5c6db in start_thread (arg=0x7f8c42770700) at
pthread_create.c:463
#6  0x00007f8c6093f88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f8c4b322700 (LWP 2978)):
#0  0x00007f8c6092e0b4 in __GI___libc_read (fd=7, buf=0x7f8c4b321b20,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f8c599e2cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8c5999e027 in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8c5999e4e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8c5999e64c in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8c6127515b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f8c6121664a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f8c6103e41a in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f8c616e3015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f8c6103fbc2 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f8c5bd5c6db in start_thread (arg=0x7f8c4b322700) at
pthread_create.c:463
#11 0x00007f8c6093f88f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f8c653be680 (LWP 2976)):
[KCrash Handler]
#6  qQmlPropertyCacheCreate<QByteArray> (metaObject=0x0, propertyName=...) at
qml/qqmlpropertycache.cpp:997
#7  0x00007f8c5eda6abf in qQmlPropertyCacheProperty<QV4::String const*>
(engine=<optimized out>, obj=obj@entry=0x55b33563f580,
name=name@entry=0x7f8c26aac680, context=context@entry=0x55b3359b31f0,
local=...) at qml/qqmlpropertycache.cpp:1081
#8  0x00007f8c5eda0b95 in QQmlPropertyCache::property (engine=<optimized out>,
obj=obj@entry=0x55b33563f580, name=name@entry=0x7f8c26aac680,
context=context@entry=0x55b3359b31f0, local=...) at
qml/qqmlpropertycache.cpp:1093
#9  0x00007f8c5ec9d3a0 in QV4::QObjectWrapper::findProperty (engine=<optimized
out>, o=0x55b33563f580, qmlContext=0x55b3359b31f0, name=0x7f8c26aac680,
revisionMode=<optimized out>, local=<optimized out>) at
jsruntime/qv4qobjectwrapper.cpp:230
#10 0x00007f8c5eca09a7 in QV4::QObjectWrapper::getQmlProperty
(this=0x7f8c26aac678, qmlContext=0x55b3359b31f0, name=0x7f8c26aac680,
revisionMode=QV4::QObjectWrapper::IgnoreRevision, hasProperty=0x0,
includeImports=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:292
#11 0x00007f8c5eca0cd4 in QV4::QObjectWrapper::virtualGet (m=0x7f8c26aac678,
id=..., receiver=<optimized out>, hasProperty=0x0) at
jsruntime/qv4qobjectwrapper.cpp:705
#12 0x00007f8c5ed29f10 in QV4::Object::get (receiver=<optimized out>,
hasProperty=0x0, name=0x7f8c26aac670, this=0x7f8c26aac678) at
jsruntime/qv4object_p.h:308
#13 QV4::Runtime::method_loadProperty (engine=0x55b3337d9a50, object=...,
nameIndex=<optimized out>) at jsruntime/qv4runtime.cpp:978
#14 0x00007f8c26171bda in ?? ()
#15 0x0000000000000000 in ?? ()

Reported using DrKonqi

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