Application: systemsettings5 (5.16.80)

Qt Version: 5.12.3
Frameworks Version: 5.62.0
Operating System: Linux 5.2.5-050205-generic x86_64
Distribution: KDE neon Unstable Edition

-- Information about the crash:
- What I was doing when the application crashed:
open system settings > regional settings > Language
click on 'Add languages..." button
add a language (I added Deutsch)
try to close system settings
click on "Discard" button... crash

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 0x7ff9afb17800 (LWP 4697))]

Thread 8 (Thread 0x7ff949fd1700 (LWP 6812)):
#0  0x00007ff9ab06d0b4 in __GI___libc_read (fd=45, buf=buf@entry=0x7ff949fd0cd0, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff9a453c2d0 in read (__nbytes=16, __buf=0x7ff949fd0cd0, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x55b17ab2c700) at ../../../../glib/gwakeup.c:210
#3  0x00007ff9a44f70b7 in g_main_context_check (context=context@entry=0x55b17eb34900, max_priority=2147483647, fds=fds@entry=0x55b17ab2d450, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3680
#4  0x00007ff9a44f7570 in g_main_context_iterate (context=0x55b17eb34900, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#5  0x00007ff9a44f7962 in g_main_loop_run (loop=0x55b17ab2d490) at ../../../../glib/gmain.c:4098
#6  0x00007ff95fef70e6 in gdbus_shared_thread_func (user_data=0x55b17e7c3800) at ../../../../gio/gdbusprivate.c:275
#7  0x00007ff9a451f195 in g_thread_proxy (data=0x55b17ab2c0a0) at ../../../../glib/gthread.c:784
#8  0x00007ff9a68b66db in start_thread (arg=0x7ff949fd1700) at pthread_create.c:463
#9  0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ff94a7d2700 (LWP 6811)):
#0  0x00007ff9ab071bf9 in __GI___poll (fds=0x55b17eb309b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff9a44f75c9 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x55b17eb309b0, timeout=<optimized out>, context=0x55b17e7c0dc0) at ../../../../glib/gmain.c:4203
#2  g_main_context_iterate (context=context@entry=0x55b17e7c0dc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3897
#3  0x00007ff9a44f76dc in g_main_context_iteration (context=0x55b17e7c0dc0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#4  0x00007ff9a44f7721 in glib_worker_main (data=<optimized out>) at ../../../../glib/gmain.c:5772
#5  0x00007ff9a451f195 in g_thread_proxy (data=0x55b17ab2c000) at ../../../../glib/gthread.c:784
#6  0x00007ff9a68b66db in start_thread (arg=0x7ff94a7d2700) at pthread_create.c:463
#7  0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff95ac11700 (LWP 4708)):
#0  0x00007ff9ab06d0b4 in __GI___libc_read (fd=22, buf=buf@entry=0x7ff95ac10b70, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff9a453c2d0 in read (__nbytes=16, __buf=0x7ff95ac10b70, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7ff97c0039a0) at ../../../../glib/gwakeup.c:210
#3  0x00007ff9a44f70b7 in g_main_context_check (context=context@entry=0x7ff954000bf0, max_priority=2147483647, fds=fds@entry=0x7ff954004a00, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3680
#4  0x00007ff9a44f7570 in g_main_context_iterate (context=context@entry=0x7ff954000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#5  0x00007ff9a44f76dc in g_main_context_iteration (context=0x7ff954000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#6  0x00007ff9ab9b4dcb in QEventDispatcherGlib::processEvents (this=0x7ff954000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x00007ff9ab95603a in QEventLoop::exec (this=this@entry=0x7ff95ac10d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#8  0x00007ff9ab77d4ca in QThread::exec (this=this@entry=0x55b17dfa7fc0) at thread/qthread.cpp:531
#9  0x00007ff9a9536115 in QQmlThreadPrivate::run (this=0x55b17dfa7fc0) at qml/ftw/qqmlthread.cpp:148
#10 0x00007ff9ab77ec72 in QThreadPrivate::start (arg=0x55b17dfa7fc0) at thread/qthread_unix.cpp:361
#11 0x00007ff9a68b66db in start_thread (arg=0x7ff95ac11700) at pthread_create.c:463
#12 0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff974833700 (LWP 4702)):
#0  0x00007ff9ab06d0b4 in __GI___libc_read (fd=13, buf=0x7ff974832bde, nbytes=10) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff98aae5021 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#2  0x00007ff98af68a2e in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007ff98af694a0 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007ff98af69560 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007ff98af773c9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007ff98ab14318 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
#7  0x00007ff9a68b66db in start_thread (arg=0x7ff974833700) at pthread_create.c:463
#8  0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff982c2e700 (LWP 4700)):
#0  0x00007ff9ab06d0b4 in __GI___libc_read (fd=10, buf=buf@entry=0x7ff982c2db70, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff9a453c2d0 in read (__nbytes=16, __buf=0x7ff982c2db70, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7ff994003db0) at ../../../../glib/gwakeup.c:210
#3  0x00007ff9a44f70b7 in g_main_context_check (context=context@entry=0x7ff97c000bf0, max_priority=2147483647, fds=fds@entry=0x7ff97c004e00, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3680
#4  0x00007ff9a44f7570 in g_main_context_iterate (context=context@entry=0x7ff97c000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#5  0x00007ff9a44f76dc in g_main_context_iteration (context=0x7ff97c000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#6  0x00007ff9ab9b4dcb in QEventDispatcherGlib::processEvents (this=0x7ff97c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x00007ff9ab95603a in QEventLoop::exec (this=this@entry=0x7ff982c2dd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#8  0x00007ff9ab77d4ca in QThread::exec (this=this@entry=0x55b1770fe0e0) at thread/qthread.cpp:531
#9  0x00007ff9a9536115 in QQmlThreadPrivate::run (this=0x55b1770fe0e0) at qml/ftw/qqmlthread.cpp:148
#10 0x00007ff9ab77ec72 in QThreadPrivate::start (arg=0x55b1770fe0e0) at thread/qthread_unix.cpp:361
#11 0x00007ff9a68b66db in start_thread (arg=0x7ff982c2e700) at pthread_create.c:463
#12 0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff9920ad700 (LWP 4699)):
#0  0x00007ff9a68bc9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b176d2cecc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55b176d2ce78, cond=0x55b176d2cea0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55b176d2cea0, mutex=0x55b176d2ce78) at pthread_cond_wait.c:655
#3  0x00007ff9934d20aa in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff9934d1dd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff9a68b66db in start_thread (arg=0x7ff9920ad700) at pthread_create.c:463
#6  0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff99b124700 (LWP 4698)):
#0  0x00007ff9ab06d0b4 in __GI___libc_read (fd=5, buf=buf@entry=0x7ff99b123b60, nbytes=nbytes@entry=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff9a453c2d0 in read (__nbytes=16, __buf=0x7ff99b123b60, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x55b176c025c0) at ../../../../glib/gwakeup.c:210
#3  0x00007ff9a44f70b7 in g_main_context_check (context=context@entry=0x7ff994000bf0, max_priority=2147483647, fds=fds@entry=0x7ff9940138e0, n_fds=n_fds@entry=1) at ../../../../glib/gmain.c:3680
#4  0x00007ff9a44f7570 in g_main_context_iterate (context=context@entry=0x7ff994000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3899
#5  0x00007ff9a44f76dc in g_main_context_iteration (context=0x7ff994000bf0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3963
#6  0x00007ff9ab9b4dcb in QEventDispatcherGlib::processEvents (this=0x7ff994000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#7  0x00007ff9ab95603a in QEventLoop::exec (this=this@entry=0x7ff99b123d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#8  0x00007ff9ab77d4ca in QThread::exec (this=this@entry=0x7ff9ac09ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#9  0x00007ff9abe23015 in QDBusConnectionManager::run (this=0x7ff9ac09ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#10 0x00007ff9ab77ec72 in QThreadPrivate::start (arg=0x7ff9ac09ad80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#11 0x00007ff9a68b66db in start_thread (arg=0x7ff99b124700) at pthread_create.c:463
#12 0x00007ff9ab07e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff9afb17800 (LWP 4697)):
[KCrash Handler]
#7  QQmlData::wasDeleted (object=0x55b1808811b0) at ../../include/QtQml/5.12.3/QtQml/private/../../../../../src/qml/qml/qqmldata_p.h:341
#8  QV4::QObjectWrapper::wrap (engine=engine@entry=0x55b1770fdab0, object=0x55b1808811b0) at ../../include/QtQml/5.12.3/QtQml/private/../../../../../src/qml/jsruntime/qv4qobjectwrapper_p.h:215
#9  0x00007ff9a94592bc in QV4::ExecutionEngine::fromVariant (this=this@entry=0x55b1770fdab0, variant=...) at jsruntime/qv4engine.cpp:1514
#10 0x00007ff9a93b9726 in searchContextProperties (v4=v4@entry=0x55b1770fdab0, context=context@entry=0x55b17f3ec5d0, name=<optimized out>, hasProperty=hasProperty@entry=0x7ffc87e7e457, base=base@entry=0x0, lookup=lookup@entry=0x0, originalLookup=<optimized out>, ep=<optimized out>) at jsruntime/qv4qmlcontext.cpp:126
#11 0x00007ff9a93ba5b5 in QV4::QQmlContextWrapper::getPropertyAndBase (resource=<optimized out>, id=..., receiver=receiver@entry=0x0, hasProperty=hasProperty@entry=0x7ffc87e7e457, base=base@entry=0x0, lookup=0x0, lookup@entry=0x55b17ed1c430) at jsruntime/qv4qmlcontext.cpp:274
#12 0x00007ff9a93bae30 in QV4::QQmlContextWrapper::resolveQmlContextPropertyLookupGetter (l=0x55b17ed1c430, engine=0x55b1770fdab0, base=0x0) at jsruntime/qv4qmlcontext.cpp:474
#13 0x00007ff97956798c in ?? ()
#14 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 411594, bug 410790, bug 410756, bug 409008, bug 408747.

Reported using DrKonqi