Bug 400572

Application: plasma-discover (5.14.2)

Qt Version: 5.11.2
Frameworks Version: 5.51.0
Operating System: Linux 4.15.0-38-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
- What I was doing when the application crashed:
I opened Discover application and searched for updates. Then I closed it and received crash report after a few seconds.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fed1e1a8200 (LWP 2684))]

Thread 6 (Thread 0x7fecce07d700 (LWP 2705)):
#0  0x00007fed19721bf9 in __GI___poll (fds=0x7fecc40018a0, nfds=1, timeout=134008) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fed13c90439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed13c9054c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed1a05c04b in QEventDispatcherGlib::processEvents (this=0x7fecc4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fed1a00030a in QEventLoop::exec (this=this@entry=0x7fecce07cda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fed19e2bbba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fed19e36adb in QThreadPrivate::start (arg=0x557b496d6900) at thread/qthread_unix.cpp:367
#7  0x00007fed15e2b6db in start_thread (arg=0x7fecce07d700) at pthread_create.c:463
#8  0x00007fed1972e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fecd4917700 (LWP 2695)):
#0  0x00007fed19721bf9 in __GI___poll (fds=0x557b497d5c20, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fed13c90439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed13c907d2 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fece493cf66 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fed13cb7e85 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fed15e2b6db in start_thread (arg=0x7fecd4917700) at pthread_create.c:463
#6  0x00007fed1972e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fecd5118700 (LWP 2694)):
#0  0x00007fed13cd5d75 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fed13c8fc8f in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed13c903e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed13c9054c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fed13c90591 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fed13cb7e85 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fed15e2b6db in start_thread (arg=0x7fecd5118700) at pthread_create.c:463
#7  0x00007fed1972e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fece6afb700 (LWP 2691)):
#0  __tls_get_addr_slow (ti=0x7fed1a487670) at ../sysdeps/x86_64/dl-tls.c:43
#1  0x00007fed1dfdfa28 in __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:55
#2  0x00007fed19e35a86 in get_thread_data () at thread/qthread_unix.cpp:184
#3  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:239
#4  0x00007fed1a05bf4a in postEventSourcePrepare (s=0x7fecd80047a0, timeout=0x7fece6afabd4) at kernel/qeventdispatcher_glib.cpp:252
#5  0x00007fed13c8f998 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fed13c9036b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fed13c9054c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fed1a05c04b in QEventDispatcherGlib::processEvents (this=0x7fecd8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#9  0x00007fed1a00030a in QEventLoop::exec (this=this@entry=0x7fece6afada0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#10 0x00007fed19e2bbba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#11 0x00007fed19e36adb in QThreadPrivate::start (arg=0x557b4aca4290) at thread/qthread_unix.cpp:367
#12 0x00007fed15e2b6db in start_thread (arg=0x7fece6afb700) at pthread_create.c:463
#13 0x00007fed1972e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fed02d19700 (LWP 2687)):
#0  0x00007fed13cd5d79 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fed13c8f2e0 in g_main_context_acquire () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed13c902f5 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed13c9054c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fed1a05c04b in QEventDispatcherGlib::processEvents (this=0x7fecfc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fed1a00030a in QEventLoop::exec (this=this@entry=0x7fed02d18d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fed19e2bbba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fed1bd2ae45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fed19e36adb in QThreadPrivate::start (arg=0x7fed1bfa2d60) at thread/qthread_unix.cpp:367
#9  0x00007fed15e2b6db in start_thread (arg=0x7fed02d19700) at pthread_create.c:463
#10 0x00007fed1972e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fed1e1a8200 (LWP 2684)):
[KCrash Handler]
#6  QShortcutMap::removeShortcut (this=this@entry=0x557b4918c600, id=-212, owner=owner@entry=0x557b4bb28d10, key=...) at kernel/qshortcutmap.cpp:204
#7  0x00007fed1d455e7e in QQuickShortcut::ungrabShortcut (this=this@entry=0x557b4bb28d10, shortcut=...) at util/qquickshortcut.cpp:417
#8  0x00007fed1d457119 in QQuickShortcut::ungrabShortcut (shortcut=..., this=0x557b4bb28d10) at util/qquickshortcut.cpp:145
#9  QQuickShortcut::~QQuickShortcut (this=0x557b4bb28d10, __in_chrg=<optimized out>) at util/qquickshortcut.cpp:145
#10 0x00007fed1d3f3d23 in QQmlPrivate::QQmlElement<QQuickShortcut>::~QQmlElement (this=0x557b4bb28d10, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#11 QQmlPrivate::QQmlElement<QQuickShortcut>::~QQmlElement (this=0x557b4bb28d10, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#12 0x00007fed1a02ec4b in QObjectPrivate::deleteChildren (this=this@entry=0x557b49868d90) at kernel/qobject.cpp:1997
#13 0x00007fed1a0386eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#14 0x00007fed1d4f8a2b in QQuickItem::~QQuickItem (this=0x557b4bbbc270, __in_chrg=<optimized out>) at items/qquickitem.cpp:2381
#15 0x00007fecf9276b5d in QQuickButton::~QQuickButton (this=0x557b4bbbc270, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.11.2/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquickbutton_p.h:57
#16 QQmlPrivate::QQmlElement<QQuickButton>::~QQmlElement (this=0x557b4bbbc270, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:103
#17 QQmlPrivate::QQmlElement<QQuickButton>::~QQmlElement (this=0x557b4bbbc270, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:103
#18 0x00007fed1a02ec4b in QObjectPrivate::deleteChildren (this=this@entry=0x557b4bb67980) at kernel/qobject.cpp:1997
#19 0x00007fed1a0386eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#20 0x00007fed1d4f8a2b in QQuickItem::~QQuickItem (this=0x557b4ba51b60, __in_chrg=<optimized out>) at items/qquickitem.cpp:2381
#21 0x00007fed1d515e05 in QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x557b4ba51b60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#22 QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement (this=0x557b4ba51b60, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#23 0x00007fed1a02ec4b in QObjectPrivate::deleteChildren (this=this@entry=0x557b4a516340) at kernel/qobject.cpp:1997
#24 0x00007fed1a0386eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#25 0x00007fed1d4f8a2b in QQuickItem::~QQuickItem (this=0x557b4b2234c0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2381
#26 0x00007fecfb7ecbf8 in QQuickLayout::~QQuickLayout (this=0x557b4b2234c0, __in_chrg=<optimized out>) at qquicklayout.cpp:708
#27 0x00007fecfb7e8670 in QQuickGridLayout::~QQuickGridLayout (this=0x557b4b2234c0, __in_chrg=<optimized out>) at qquicklinearlayout_p.h:134
#28 QQmlPrivate::QQmlElement<QQuickGridLayout>::~QQmlElement (this=0x557b4b2234c0, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#29 QQmlPrivate::QQmlElement<QQuickGridLayout>::~QQmlElement (this=0x557b4b2234c0, __in_chrg=<optimized out>) at ../../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#30 0x00007fed1a02ec4b in QObjectPrivate::deleteChildren (this=this@entry=0x557b4b48ee50) at kernel/qobject.cpp:1997
#31 0x00007fed1a0386eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#32 0x00007fed1d4f8a2b in QQuickItem::~QQuickItem (this=0x557b4b4059a0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2381
#33 0x00007fed1d515575 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x557b4b4059a0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#34 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x557b4b4059a0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#35 0x00007fed1a02ec4b in QObjectPrivate::deleteChildren (this=this@entry=0x557b4bfdb5f0) at kernel/qobject.cpp:1997
#36 0x00007fed1a0386eb in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#37 0x00007fed1d4f8a2b in QQuickItem::~QQuickItem (this=0x557b4b40cce0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2381
#38 0x00007fecf927719d in QQuickItemDelegate::~QQuickItemDelegate (this=0x557b4b40cce0, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.11.2/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquickitemdelegate_p.h:57
#39 QQmlPrivate::QQmlElement<QQuickItemDelegate>::~QQmlElement (this=0x557b4b40cce0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:103
#40 QQmlPrivate::QQmlElement<QQuickItemDelegate>::~QQmlElement (this=0x557b4b40cce0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:103
#41 0x00007fecfb39e2ee in qDeleteAll<QList<QQuickItem*>::const_iterator> (end=..., begin=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:320
#42 qDeleteAll<QList<QQuickItem*> > (c=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:328
#43 DelegateCache::~DelegateCache (this=0x7fecfb5b2890 <(anonymous namespace)::Q_QGS_s_delegateCache::innerFunction()::holder>, __in_chrg=<optimized out>) at ./src/delegaterecycler.cpp:55
#44 0x00007fecfb39e329 in (anonymous namespace)::Q_QGS_s_delegateCache::Holder::~Holder (this=<optimized out>, __in_chrg=<optimized out>) at ./src/delegaterecycler.cpp:46
#45 0x00007fed19650041 in __run_exit_handlers (status=0, listp=0x7fed199f8718 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108
#46 0x00007fed1965013a in __GI_exit (status=<optimized out>) at exit.c:139
#47 0x00007fed1962eb9e in __libc_start_main (main=0x557b475ddf90 <main(int, char**)>, argc=1, argv=0x7ffccbad8e88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffccbad8e78) at ../csu/libc-start.c:344
#48 0x0000557b475deaea in _start ()

Reported using DrKonqi