Bug 399555

Summary: Discover crashes when access the "Installed" menu.
Product: [Applications] Discover Reporter: Cesar <cesar>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED DUPLICATE    
Severity: crash CC: fauno077, nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.14.0   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Cesar 2018-10-09 13:05:07 UTC 
Application: plasma-discover (5.14.0)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.15.0-36-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
- What I was doing when the application crashed:

I just clicked the button "Installed". The windows crashed.

-- 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 0x7fa6ed647c80 (LWP 6001))]

Thread 12 (Thread 0x7fa69d44a700 (LWP 6054)):
#0  0x00007fa6e8bc7bf9 in __GI___poll (fds=0x7fa6900018a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa6e3137439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa690000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa69d449da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x7fa6c806f6f0) at thread/qthread_unix.cpp:367
#7  0x00007fa6e52d26db in start_thread (arg=0x7fa69d44a700) at pthread_create.c:463
#8  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fa69e2b4700 (LWP 6051)):
#0  0x00007fa6e317cd79 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa6e3136805 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313736b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa68c00a220, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa69e2b3da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x7fa6b8010b50) at thread/qthread_unix.cpp:367
#8  0x00007fa6e52d26db in start_thread (arg=0x7fa69e2b4700) at pthread_create.c:463
#9  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fa69eab5700 (LWP 6016)):
#0  0x00007fa6e317cd94 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa6e31373f6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa694000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa69eab4da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x558abf9676b0) at thread/qthread_unix.cpp:367
#7  0x00007fa6e52d26db in start_thread (arg=0x7fa69eab5700) at pthread_create.c:463
#8  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa6ad9a9700 (LWP 6011)):
#0  0x00007fa6e317b9f3 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa6e3136f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e31373e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa6a4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa6ad9a8da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x558abe84e3c0) at thread/qthread_unix.cpp:367
#8  0x00007fa6e52d26db in start_thread (arg=0x7fa6ad9a9700) at pthread_create.c:463
#9  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa6af149700 (LWP 6010)):
#0  0x00007fa6e8bc30b4 in __GI___libc_read (fd=18, buf=0x7fa6af148cd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fa6e317ba00 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e3136f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e31373e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa6e31377d2 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa6bcc3ef66 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007fa6e315ee85 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fa6e52d26db in start_thread (arg=0x7fa6af149700) at pthread_create.c:463
#8  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa6af94a700 (LWP 6009)):
#0  0x00007fa6e317cd94 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa6e31373f6 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e3137591 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa6e315ee85 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa6e52d26db in start_thread (arg=0x7fa6af94a700) at pthread_create.c:463
#6  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa6b4dc5700 (LWP 6008)):
#0  0x00007fa6e9500bdd in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fa6b0004cf0) at kernel/qtimerinfo_unix.cpp:91
#1  0x00007fa6e95011b5 in QTimerInfoList::timerWait (this=0x7fa6b0004cf0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#2  0x00007fa6e95027fe in timerSourcePrepareHelper (timeout=0x7fa6b4dc4bd4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#3  timerSourcePrepare (source=<optimized out>, timeout=0x7fa6b4dc4bd4) at kernel/qeventdispatcher_glib.cpp:165
#4  0x00007fa6e3136998 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa6e313736b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa6b0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#8  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa6b4dc4da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#9  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#10 0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x558abf964080) at thread/qthread_unix.cpp:367
#11 0x00007fa6e52d26db in start_thread (arg=0x7fa6b4dc5700) at pthread_create.c:463
#12 0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa6bde14700 (LWP 6006)):
#0  0x00007fa6e8bc7bf9 in __GI___poll (fds=0x7fa6b80055a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa6e3137439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa6b8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa6bde13d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fa6e92d1b8a in QThread::exec (this=this@entry=0x558abfb7f610) at thread/qthread.cpp:525
#6  0x00007fa6ec6cd906 in QQuickPixmapReader::run (this=0x558abfb7f610) at util/qquickpixmapcache.cpp:934
#7  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x558abfb7f610) at thread/qthread_unix.cpp:367
#8  0x00007fa6e52d26db in start_thread (arg=0x7fa6bde14700) at pthread_create.c:463
#9  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa6cd6a2700 (LWP 6005)):
#0  0x00007fa6e3136d66 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa6e31373e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa6c0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa6cd6a1d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fa6e9e768b5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x558abe389350) at thread/qthread_unix.cpp:367
#8  0x00007fa6e52d26db in start_thread (arg=0x7fa6cd6a2700) at pthread_create.c:463
#9  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa6ce8b3700 (LWP 6004)):
#0  0x00007fa6e3134400 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa6e31368d3 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa6e313736b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa6e9502a9b in QEventDispatcherGlib::processEvents (this=0x7fa6c8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fa6ce8b2d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fa6e92d1b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fa6eb1cfe45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x7fa6eb447d60) at thread/qthread_unix.cpp:367
#9  0x00007fa6e52d26db in start_thread (arg=0x7fa6ce8b3700) at pthread_create.c:463
#10 0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa6dabf4700 (LWP 6003)):
#0  0x00007fa6e8bc7bf9 in __GI___poll (fds=0x7fa6dabf3ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa6e2ece747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa6e2ed036a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa6ddbb5129 in QXcbEventReader::run (this=0x558abe0b8400) at qxcbconnection.cpp:1388
#4  0x00007fa6e92dcaab in QThreadPrivate::start (arg=0x558abe0b8400) at thread/qthread_unix.cpp:367
#5  0x00007fa6e52d26db in start_thread (arg=0x7fa6dabf4700) at pthread_create.c:463
#6  0x00007fa6e8bd488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa6ed647c80 (LWP 6001)):
[KCrash Handler]
#6  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x8080ffff00000005) at /usr/include/c++/7/bits/atomic_base.h:396
#7  QAtomicOps<int>::load<int> (_q_value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:227
#8  QBasicAtomicInteger<int>::load (this=0x8080ffff00000005) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:103
#9  QWeakPointer<QObject>::data (this=0x558ac333ca80) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:569
#10 QPointer<QQuickMenu>::data (this=0x558ac333ca80) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qpointer.h:86
#11 QPointer<QQuickMenu>::operator-> (this=0x558ac333ca80) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qpointer.h:88
#12 operator==<QQuickMenu> (o=0x0, p=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qpointer.h:116
#13 QQuickMenuPrivate::setParentMenu (this=0x558ac333c900, parent=parent@entry=0x0) at qquickmenu.cpp:482
#14 0x00007fa6d8c825cb in QQuickMenuPrivate::removeItem (this=0x558ac3b29a80, index=<optimized out>, item=<optimized out>) at qquickmenu.cpp:238
#15 0x00007fa6ec78dd26 in QQuickItemPrivate::itemChange (this=this@entry=0x558abef834f0, change=change@entry=QQuickItem::ItemParentHasChanged, data=...) at items/qquickitem.cpp:6206
#16 0x00007fa6ec794157 in QQuickItem::setParentItem (this=0x558ac3b10870, parentItem=parentItem@entry=0x0) at items/qquickitem.cpp:2791
#17 0x00007fa6ec795a6c in QQuickItem::~QQuickItem (this=0x558ac0d36b10, __in_chrg=<optimized out>) at items/qquickitem.cpp:2391
#18 0x00007fa6ec795d59 in QQuickItem::~QQuickItem (this=0x558ac0d36b10, __in_chrg=<optimized out>) at items/qquickitem.cpp:2439
#19 0x00007fa6e94d56ab in QObjectPrivate::deleteChildren (this=this@entry=0x558ac34364a0) at kernel/qobject.cpp:1997
#20 0x00007fa6e94df14b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#21 0x00007fa6ec795b7b in QQuickItem::~QQuickItem (this=0x558ac3d1dd10, __in_chrg=<optimized out>) at items/qquickitem.cpp:2378
#22 0x00007fa6ec7b2e15 in QQmlPrivate::QQmlElement<QQuickListView>::~QQmlElement (this=0x558ac3d1dd10, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#23 QQmlPrivate::QQmlElement<QQuickListView>::~QQmlElement (this=0x558ac3d1dd10, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#24 0x00007fa6e94d56ab in QObjectPrivate::deleteChildren (this=this@entry=0x558ac3b29a80) at kernel/qobject.cpp:1997
#25 0x00007fa6e94df14b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#26 0x00007fa6c5a2e25d in QQuickMenu::~QQuickMenu (this=0x558ac3b47cf0, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.11.1/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquickmenu_p.h:63
#27 QQmlPrivate::QQmlElement<QQuickMenu>::~QQmlElement (this=0x558ac3b47cf0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:103
#28 QQmlPrivate::QQmlElement<QQuickMenu>::~QQmlElement (this=0x558ac3b47cf0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:103
#29 0x00007fa6e94d56ab in QObjectPrivate::deleteChildren (this=this@entry=0x558ac06b1fa0) at kernel/qobject.cpp:1997
#30 0x00007fa6e94df14b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#31 0x00007fa6ec795b7b in QQuickItem::~QQuickItem (this=0x558ac05b3520, __in_chrg=<optimized out>) at items/qquickitem.cpp:2378
#32 0x00007fa6ec7b3065 in QQmlPrivate::QQmlElement<QQuickMouseArea>::~QQmlElement (this=0x558ac05b3520, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#33 QQmlPrivate::QQmlElement<QQuickMouseArea>::~QQmlElement (this=0x558ac05b3520, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#34 0x00007fa6e94d56ab in QObjectPrivate::deleteChildren (this=this@entry=0x558ac40d6420) at kernel/qobject.cpp:1997
#35 0x00007fa6e94df14b in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#36 0x00007fa6ec795b7b in QQuickItem::~QQuickItem (this=0x558ac3b695c0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2378
#37 0x00007fa6ec7b26c5 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x558ac3b695c0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#38 QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement (this=0x558ac3b695c0, __in_chrg=<optimized out>) at ../../include/QtQml/../../src/qml/qml/qqmlprivate.h:103
#39 0x00007fa6e94d8660 in QObject::event (this=this@entry=0x558ac3b695c0, e=e@entry=0x558ac0a4c170) at kernel/qobject.cpp:1242
#40 0x00007fa6ec792aeb in QQuickItem::event (this=0x558ac3b695c0, ev=0x558ac0a4c170) at items/qquickitem.cpp:8003
#41 0x00007fa6eaabfe8c in QApplicationPrivate::notify_helper (this=this@entry=0x558abe0be520, receiver=receiver@entry=0x558ac3b695c0, e=e@entry=0x558ac0a4c170) at kernel/qapplication.cpp:3727
#42 0x00007fa6eaac745f in QApplication::notify (this=0x7fffdd8babd0, receiver=0x558ac3b695c0, e=0x558ac0a4c170) at kernel/qapplication.cpp:3486
#43 0x00007fa6e94a8ab8 in QCoreApplication::notifyInternal2 (receiver=0x558ac3b695c0, event=event@entry=0x558ac0a4c170) at kernel/qcoreapplication.cpp:1048
#44 0x00007fa6e94ab5fd in QCoreApplication::sendEvent (event=0x558ac0a4c170, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x558abe0bdf30) at kernel/qcoreapplication.cpp:1745
#46 0x00007fa6e94abbb8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#47 0x00007fa6e9503453 in postEventSourceDispatch (s=0x558abe106630) at kernel/qeventdispatcher_glib.cpp:276
#48 0x00007fa6e3137287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007fa6e31374c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007fa6e313754c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007fa6e9502a7f in QEventDispatcherGlib::processEvents (this=0x558abe118bb0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#52 0x00007fa6ddc3fed1 in QPAEventDispatcherGlib::processEvents (this=0x558abe118bb0, flags=...) at qeventdispatcher_glib.cpp:69
#53 0x00007fa6e94a6dea in QEventLoop::exec (this=this@entry=0x7fffdd8bab10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#54 0x00007fa6e94affa0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#55 0x0000558abd2f4808 in main (argc=<optimized out>, argv=<optimized out>) at ./discover/main.cpp:156

Possible duplicates by query: bug 399005, bug 397907, bug 390480.

Reported using DrKonqi
Comment 1 Nate Graham 2018-10-10 17:19:37 UTC 

*** This bug has been marked as a duplicate of bug 397863 ***
Comment 2 Aleix Pol 2018-10-11 15:32:01 UTC 

*** This bug has been marked as a duplicate of bug 399559 ***
Comment 3 fauno077 2018-10-13 18:34:37 UTC 
Created attachment 115633 [details]
New crash information added by DrKonqi

plasma-discover (5.14.0) using Qt 5.11.2

- What I was doing when the application crashed:

Open Discover, click update or preferences, click installed, crashed

-- Backtrace (Reduced):
#6  0x00007fd99208601a in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fd992086538 in QObject::disconnectImpl(QObject const*, void**, QObject const*, void**, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#8  0x00007fd989e6e26d in QQuickMenuPrivate::setParentMenu(QQuickMenu*) () at /usr/lib/libQt5QuickTemplates2.so.5
#9  0x00007fd989e6fa32 in QQuickMenuPrivate::removeItem(int, QQuickItem*) () at /usr/lib/libQt5QuickTemplates2.so.5
#10 0x00007fd99398c347 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () at /usr/lib/libQt5Quick.so.5