Bug 399576

Application: plasma-discover (5.14.0)

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

-- Information about the crash:
- What I was doing when the application crashed:
Installing the flashinstaller package which seems to have installed correctly

-- 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 0x7fbfe1985c80 (LWP 7456))]

Thread 10 (Thread 0x7fbf75873700 (LWP 7527)):
#0  0x00007fbfdcf456e8 in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:60
#1  0x00007fbfdcf29be6 in __GI___poll (fds=0x7fbf6000bb40, nfds=1, timeout=32192) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fbfd7499439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbfdd864a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fbf60001780, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fbf75872da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fbfdd633b8a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x55c7e442a650) at thread/qthread_unix.cpp:367
#8  0x00007fbfd96346db in start_thread (arg=0x7fbf75873700) at pthread_create.c:463
#9  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fbf91c59700 (LWP 7472)):
#0  0x00007fbfdcf250b4 in __GI___libc_read (fd=29, buf=0x7fbf91c58cd0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fbfd74dda00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfd7498f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfd74993e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbfd74997d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbf93895f66 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007fbfd74c0e85 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fbfd96346db in start_thread (arg=0x7fbf91c59700) at pthread_create.c:463
#8  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fbf9245a700 (LWP 7471)):
#0  0x00007fbfdcf250b4 in __GI___libc_read (fd=15, buf=0x7fbf92459ce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fbfd74dda00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfd7498f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfd74993e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbfd7499591 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fbfd74c0e85 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fbfd96346db in start_thread (arg=0x7fbf9245a700) at pthread_create.c:463
#8  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fbfab113700 (LWP 7467)):
#0  0x00007fbfd749631e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbfd74988d3 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfd749936b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbfdd864a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fbf9c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fbfab112da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007fbfdd633b8a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x55c7e4682670) at thread/qthread_unix.cpp:367
#8  0x00007fbfd96346db in start_thread (arg=0x7fbfab113700) at pthread_create.c:463
#9  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fbfac694700 (LWP 7466)):
#0  0x00007fbfd7498a78 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbfd749936b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfdd864a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fbfa4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fbfac693da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fbfdd633b8a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x55c7e431ed20) at thread/qthread_unix.cpp:367
#7  0x00007fbfd96346db in start_thread (arg=0x7fbfac694700) at pthread_create.c:463
#8  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fbfb5c0e700 (LWP 7465)):
#0  0x00007fbfdcf250b4 in __GI___libc_read (fd=13, buf=0x7fbfb5c0db20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fbfd74dda00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfd7498f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfd74993e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbfdd864a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fbfb0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fbfb5c0dd30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007fbfdd633b8a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007fbfe0a2f906 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x55c7e57490f0) at thread/qthread_unix.cpp:367
#10 0x00007fbfd96346db in start_thread (arg=0x7fbfb5c0e700) at pthread_create.c:463
#11 0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fbfc54e0700 (LWP 7464)):
#0  0x00007fbfd7499330 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfdd864a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fbfb8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fbfc54dfd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#4  0x00007fbfdd633b8a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525
#5  0x00007fbfde1d88b5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x55c7e3ef1790) at thread/qthread_unix.cpp:367
#7  0x00007fbfd96346db in start_thread (arg=0x7fbfc54e0700) at pthread_create.c:463
#8  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fbfc66f1700 (LWP 7463)):
#0  0x00007fbfdcf250b4 in __GI___libc_read (fd=7, buf=0x7fbfc66f0b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fbfd74dda00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbfd7498f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbfd74993e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbfdd864a9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fbfc0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fbfc66f0d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007fbfdd633b8a in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007fbfdf531e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x7fbfdf7a9d60) at thread/qthread_unix.cpp:367
#10 0x00007fbfd96346db in start_thread (arg=0x7fbfc66f1700) at pthread_create.c:463
#11 0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fbfcef58700 (LWP 7462)):
#0  0x00007fbfdcf29bf9 in __GI___poll (fds=0x7fbfcef57ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fbfd7230747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fbfd723236a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fbfd1f19129 in QXcbEventReader::run() (this=0x55c7e3dfd400) at qxcbconnection.cpp:1388
#4  0x00007fbfdd63eaab in QThreadPrivate::start(void*) (arg=0x55c7e3dfd400) at thread/qthread_unix.cpp:367
#5  0x00007fbfd96346db in start_thread (arg=0x7fbfcef58700) at pthread_create.c:463
#6  0x00007fbfdcf3688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fbfe1985c80 (LWP 7456)):
[KCrash Handler]
#6  0x00007fbfccfe4ec2 in QQuickMenuPrivate::setParentMenu(QQuickMenu*) () at /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#7  0x00007fbfccfe65cb in QQuickMenuPrivate::removeItem(int, QQuickItem*) () at /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#8  0x00007fbfe0aefd26 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fbfe0af6157 in QQuickItem::setParentItem(QQuickItem*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fbfe0af7a6c in QQuickItem::~QQuickItem() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fbfe0af7d59 in QQuickItem::~QQuickItem() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fbfdd8376ab in QObjectPrivate::deleteChildren() (this=this@entry=0x55c7eb644eb0) at kernel/qobject.cpp:1997
#13 0x00007fbfdd84114b in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#14 0x00007fbfe0af7b7b in QQuickItem::~QQuickItem() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007fbfe0b14e15 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fbfdd8376ab in QObjectPrivate::deleteChildren() (this=this@entry=0x55c7e7261450) at kernel/qobject.cpp:1997
#17 0x00007fbfdd84114b in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#18 0x00007fbfbd67025d in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Templates.2/libqtquicktemplates2plugin.so
#19 0x00007fbfdd8376ab in QObjectPrivate::deleteChildren() (this=this@entry=0x55c7e6d2e980) at kernel/qobject.cpp:1997
#20 0x00007fbfdd84114b in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#21 0x00007fbfe0af7b7b in QQuickItem::~QQuickItem() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007fbfe0b15065 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007fbfdd8376ab in QObjectPrivate::deleteChildren() (this=this@entry=0x55c7eb276010) at kernel/qobject.cpp:1997
#24 0x00007fbfdd84114b in QObject::~QObject() (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1025
#25 0x00007fbfe0af7b7b in QQuickItem::~QQuickItem() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#26 0x00007fbfe0b146c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#27 0x00007fbfdd83a660 in QObject::event(QEvent*) (this=0x55c7e6030f50, e=<optimized out>) at kernel/qobject.cpp:1242
#28 0x00007fbfe0af4aeb in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#29 0x00007fbfdee21e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55c7e3e03520, receiver=receiver@entry=0x55c7e6030f50, e=e@entry=0x55c7e518be90) at kernel/qapplication.cpp:3727
#30 0x00007fbfdee2945f in QApplication::notify(QObject*, QEvent*) (this=0x7ffd0899afb0, receiver=0x55c7e6030f50, e=0x55c7e518be90) at kernel/qapplication.cpp:3486
#31 0x00007fbfdd80aab8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55c7e6030f50, event=event@entry=0x55c7e518be90) at kernel/qcoreapplication.cpp:1048
#32 0x00007fbfdd80d5fd in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x55c7e518be90, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#33 0x00007fbfdd80d5fd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55c7e3e02f30) at kernel/qcoreapplication.cpp:1745
#34 0x00007fbfdd80dbb8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#35 0x00007fbfdd865453 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55c7e3eb85b0) at kernel/qeventdispatcher_glib.cpp:276
#36 0x00007fbfd7499287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fbfd74994c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fbfd749954c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fbfdd864a7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55c7e3e64e20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#40 0x00007fbfd1fa3ed1 in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55c7e3e64e20, flags=...) at qeventdispatcher_glib.cpp:69
#41 0x00007fbfdd808dea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd0899aef0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#42 0x00007fbfdd811fa0 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1336
#43 0x000055c7e2a3c808 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./discover/main.cpp:156

Possible duplicates by query: bug 399559, bug 399556, bug 399555, bug 399005, bug 398003.

Reported using DrKonqi