Application: systemsettings5 (5.8.5)

Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.4.0-62-generic x86_64
Distribution: KDE neon LTS User Edition 5.8

-- Information about the crash:
Open system settings and navigate to window look. Change to plastic, apply, to breeze and apply again. Crash doesn't always happen.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Ustawienia systemowe (systemsettings5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcc0e8ef8c0 (LWP 2119))]

Thread 4 (Thread 0x7fcbd6da6700 (LWP 2130)):
#0  0x00007fcc061b7a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcc06172db9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc06173330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc0617349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc0b93a75b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc0b8e50ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc0b714f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc0a071bf5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fcc0b719b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fcc0822b6ba in start_thread (arg=0x7fcbd6da6700) at pthread_create.c:333
#10 0x00007fcc0b02682d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fcbf8bf2700 (LWP 2121)):
#0  0x00007fcc061b7a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcc06173290 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc0617349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc0b93a75b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc0b8e50ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc0b714f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc0ea46735 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fcc0b719b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc0822b6ba in start_thread (arg=0x7fcbf8bf2700) at pthread_create.c:333
#9  0x00007fcc0b02682d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fcbfd1f0700 (LWP 2120)):
#0  0x00007fcc0b01ab5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fcc08aa1c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fcc08aa38d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fcbff747d79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fcc0b719b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc0822b6ba in start_thread (arg=0x7fcbfd1f0700) at pthread_create.c:333
#6  0x00007fcc0b02682d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fcc0e8ef8c0 (LWP 2119)):
[KCrash Handler]
#6  0x00007fcc0af55428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007fcc0af5702a in __GI_abort () at abort.c:89
#8  0x00007fcc0af977ea in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fcc0b0b02e0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007fcc0af9e6f8 in malloc_printerr (ar_ptr=0x7fcc0b2e3b20 <main_arena>, ptr=<optimized out>, str=0x7fcc0b0ad095 "corrupted double-linked list", action=3) at malloc.c:5004
#10 malloc_consolidate (av=av@entry=0x7fcc0b2e3b20 <main_arena>) at malloc.c:4181
#11 0x00007fcc0afa13be in _int_malloc (av=av@entry=0x7fcc0b2e3b20 <main_arena>, bytes=bytes@entry=1024) at malloc.c:3448
#12 0x00007fcc0afa35d4 in __GI___libc_malloc (bytes=1024) at malloc.c:2911
#13 0x00007fcc0b71ad80 in QArrayData::allocate(unsigned long, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fcc09e54c8e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007fcc09e54de5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007fcc09f4c050 in QV4::WeakValue::free() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007fcc09fe10c7 in QQmlData::destroyed(QObject*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007fcc0b9198e1 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fcc0a3333a3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007fcc0a34e4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007fcc0b910663 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fcc0b919814 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fcc0a3333a3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007fcc0a34e4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007fcc0b910663 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fcc0b919814 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fcc0a3333a3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#28 0x00007fcc0a34e5ae in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#29 0x00007fcc0b910663 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fcc0b919814 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fcc0a3333a3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007fcc0a34e5ae in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007fcc0b910663 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007fcc0b919814 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007fcc0a3333a3 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#36 0x00007fcc0a34e4f6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#37 0x00007fcc0b910663 in QObjectPrivate::deleteChildren() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007fcc0b919814 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007fcbd6fcbf49 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#40 0x00007fcc0b912dd0 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007fcc0cdc0ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007fcc0cdc88c6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007fcc0b8e70c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007fcc0b8e978b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007fcc0b93a333 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007fcc06173197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007fcc061733f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007fcc0617349c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007fcc0b93a73f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007fcc0b8e50ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007fcc0b8ed6cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x000000000040c110 in ?? ()
#53 0x00007fcc0af40830 in __libc_start_main (main=0x40bd20, argc=1, argv=0x7fff9db86bd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9db86bc8) at ../csu/libc-start.c:291
#54 0x000000000040c189 in _start ()

Possible duplicates by query: bug 376475, bug 375942, bug 375933, bug 375899, bug 375063.

Reported using DrKonqi