Application: plasma-discover (5.14.5)
 (Compiled from sources)
Qt Version: 5.11.2
Frameworks Version: 5.54.0
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: KDE neon User Edition 5.14

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

i update the sistem and after that it crash it did no work went i open discovery
withou the updates it wors fine, i reistal the sistem and after the updates it did it again.

The crash can be reproduced every time.

-- 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 0x7f092833c200 (LWP 4170))]

Thread 10 (Thread 0x7f08d8de5700 (LWP 4187)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f0923fa1594 in QtLinuxFutex::_q_futex (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:92
#2  QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned int> > (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:107
#3  futexSemaphoreTryAcquire_loop<false> (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:221
#4  futexSemaphoreTryAcquire<false> (timeout=-1, n=n@entry=1, u=...) at thread/qsemaphore.cpp:264
#5  QSemaphore::acquire (this=this@entry=0x7f08d8de3260, n=n@entry=1) at thread/qsemaphore.cpp:328
#6  0x00007f09241a8310 in QMetaObject::activate (sender=0x559f3c409830, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3739
#7  0x00007f0921cac38b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f0921d4626d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007f09241a8075 in QMetaObject::activate (sender=0x7f08d0002ab0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#10 0x00007f0921ca1fa9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f0921ca2865 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f09241a8075 in QMetaObject::activate (sender=0x7f08d00075e0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#13 0x00007f0921d3fe9f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007f0921d3c9c0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f0921d3cd55 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007f0921d21451 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#17 0x00007f09241a8075 in QMetaObject::activate (sender=0x7f08d0004e50, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#18 0x00007f0921ce9ce3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f0921ce9d94 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f0921cfd651 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007f0925794e1c in QApplicationPrivate::notify_helper (this=this@entry=0x559f38d12520, receiver=receiver@entry=0x7f08d000ab00, e=e@entry=0x7f08d8de4b80) at kernel/qapplication.cpp:3727
#22 0x00007f092579c3ef in QApplication::notify (this=0x7ffe7c4557b0, receiver=0x7f08d000ab00, e=0x7f08d8de4b80) at kernel/qapplication.cpp:3486
#23 0x00007f0924178fe8 in QCoreApplication::notifyInternal2 (receiver=0x7f08d000ab00, event=event@entry=0x7f08d8de4b80) at kernel/qcoreapplication.cpp:1048
#24 0x00007f09241d3c7d in QCoreApplication::sendEvent (event=0x7f08d8de4b80, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 socketNotifierSourceDispatch (source=0x7f08d0001600) at kernel/qeventdispatcher_glib.cpp:106
#26 0x00007f091de03387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f091de035c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f09241d304b in QEventDispatcherGlib::processEvents (this=0x7f08d0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7f08d8de4da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#31 0x00007f0923fa2bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#32 0x00007f0923fadadb in QThreadPrivate::start (arg=0x559f393aa180) at thread/qthread_unix.cpp:367
#33 0x00007f091ff9e6db in start_thread (arg=0x7f08d8de5700) at pthread_create.c:463
#34 0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f08e5393700 (LWP 4182)):
#0  0x00007f0923898bf9 in __GI___poll (fds=0x559f393f9d00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f091de03539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de038d2 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f08e71d4026 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f091de2b105 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f091ff9e6db in start_thread (arg=0x7f08e5393700) at pthread_create.c:463
#6  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f08e5b94700 (LWP 4181)):
#0  0x00007f0923898bf9 in __GI___poll (fds=0x559f3a8b4570, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f091de03539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f091de03691 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f091de2b105 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f091ff9e6db in start_thread (arg=0x7f08e5b94700) at pthread_create.c:463
#6  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f08f59fa700 (LWP 4179)):
#0  0x00007f0923898bf9 in __GI___poll (fds=0x7f08ec0049b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f091de03539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f09241d304b in QEventDispatcherGlib::processEvents (this=0x7f08ec000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7f08f59f9da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f0923fa2bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f0923fadadb in QThreadPrivate::start (arg=0x559f3a8656b0) at thread/qthread_unix.cpp:367
#7  0x00007f091ff9e6db in start_thread (arg=0x7f08f59fa700) at pthread_create.c:463
#8  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f08f6f7b700 (LWP 4178)):
#0  0x00007f0923898bf9 in __GI___poll (fds=0x7f08e8004e10, nfds=1, timeout=9480) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f091de03539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f09241d304b in QEventDispatcherGlib::processEvents (this=0x7f08e8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7f08f6f7ada0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f0923fa2bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f0923fadadb in QThreadPrivate::start (arg=0x559f3a823e90) at thread/qthread_unix.cpp:367
#7  0x00007f091ff9e6db in start_thread (arg=0x7f08f6f7b700) at pthread_create.c:463
#8  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f08f8044700 (LWP 4176)):
#0  0x00007f0923898bf9 in __GI___poll (fds=0x7f08f00055a0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f091de03539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f09241d304b in QEventDispatcherGlib::processEvents (this=0x7f08f0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7f08f8043d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f0923fa2bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f09275b2826 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f0923fadadb in QThreadPrivate::start (arg=0x559f3a73ff90) at thread/qthread_unix.cpp:367
#8  0x00007f091ff9e6db in start_thread (arg=0x7f08f8044700) at pthread_create.c:463
#9  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f09035ef700 (LWP 4174)):
#0  __GI___pthread_getspecific (key=<optimized out>) at pthread_getspecific.c:65
#1  0x00007f091de2b5f0 in g_thread_self () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de0363d in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f09241d304b in QEventDispatcherGlib::processEvents (this=0x7f08fc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7f09035eed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f0923fa2bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f0924b4a4f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f0923fadadb in QThreadPrivate::start (arg=0x559f38dc8660) at thread/qthread_unix.cpp:367
#8  0x00007f091ff9e6db in start_thread (arg=0x7f09035ef700) at pthread_create.c:463
#9  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0908a1e700 (LWP 4173)):
#0  0x00007f09241d2f22 in postEventSourcePrepare (s=0x7f0904004ba0, timeout=0x7f0908a1dba4) at kernel/qeventdispatcher_glib.cpp:251
#1  0x00007f091de02a98 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f091de0346b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f09241d304b in QEventDispatcherGlib::processEvents (this=0x7f0904000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7f0908a1dd70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f0923fa2bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f0925ea4e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f0923fadadb in QThreadPrivate::start (arg=0x7f092611cd60) at thread/qthread_unix.cpp:367
#9  0x00007f091ff9e6db in start_thread (arg=0x7f0908a1e700) at pthread_create.c:463
#10 0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f09158c2700 (LWP 4172)):
#0  0x00007f0923898bf9 in __GI___poll (fds=0x7f09158c1ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f091d538747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f091d53a36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0918882ed9 in QXcbEventReader::run (this=0x559f38d0c400) at qxcbconnection.cpp:1391
#4  0x00007f0923fadadb in QThreadPrivate::start (arg=0x559f38d0c400) at thread/qthread_unix.cpp:367
#5  0x00007f091ff9e6db in start_thread (arg=0x7f09158c2700) at pthread_create.c:463
#6  0x00007f09238a588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f092833c200 (LWP 4170)):
[KCrash Handler]
#6  0x00007f092724bd62 in AbstractResource::reportNewState (this=0x559f3c64e8e0) at ./libdiscover/resources/AbstractResource.cpp:143
#7  0x00007f09241a818f in QtPrivate::QSlotObjectBase::call (a=0x7ffe7c454eb0, r=0x559f3c64e8e0, this=0x7f08d4017c50) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#8  QMetaObject::activate (sender=sender@entry=0x559f3c64e8e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3754
#9  0x00007f09241a8747 in QMetaObject::activate (sender=sender@entry=0x559f3c64e8e0, m=m@entry=0x7f092747e400 <AbstractResource::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3633
#10 0x00007f092725ccf3 in AbstractResource::stateChanged (this=this@entry=0x559f3c64e8e0) at ./obj-x86_64-linux-gnu/libdiscover/DiscoverCommon_autogen/3YJK5W5UP7/moc_AbstractResource.cpp:430
#11 0x00007f08dab58a2d in FwupdResource::setState (this=this@entry=0x559f3c64e8e0, state=state@entry=AbstractResource::Upgradeable) at ./libdiscover/backends/FwupdBackend/FwupdResource.cpp:141
#12 0x00007f08dab5dcb5 in FwupdBackend::createApp (this=this@entry=0x559f394354f0, device=device@entry=0x7f08d40046d0) at ./libdiscover/backends/FwupdBackend/FwupdBackend.cpp:235
#13 0x00007f08dab5e4e7 in FwupdBackend::addUpdates (this=0x559f394354f0) at ./libdiscover/backends/FwupdBackend/FwupdBackend.cpp:146
#14 0x00007f08dab5edc1 in FwupdBackend::<lambda()>::operator() (__closure=0x559f39882d10) at ./libdiscover/backends/FwupdBackend/FwupdBackend.cpp:414
#15 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, FwupdBackend::checkForUpdates()::<lambda()> >::call (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:128
#16 QtPrivate::Functor<FwupdBackend::checkForUpdates()::<lambda()>, 0>::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:238
#17 QtPrivate::QFunctorSlotObject<FwupdBackend::checkForUpdates()::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x559f39882d00, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:421
#18 0x00007f09241a818f in QtPrivate::QSlotObjectBase::call (a=0x7ffe7c4551a0, r=0x559f394354f0, this=0x559f39882d00) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#19 QMetaObject::activate (sender=0x559f3a88c800, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3754
#20 0x00007f0923fab223 in QFutureWatcherBase::event (this=<optimized out>, event=0x7f08c8001f90) at thread/qfuturewatcher.cpp:332
#21 0x00007f0925794e1c in QApplicationPrivate::notify_helper (this=this@entry=0x559f38d12520, receiver=receiver@entry=0x559f3a88c800, e=e@entry=0x7f08c8001f90) at kernel/qapplication.cpp:3727
#22 0x00007f092579c3ef in QApplication::notify (this=0x7ffe7c4557b0, receiver=0x559f3a88c800, e=0x7f08c8001f90) at kernel/qapplication.cpp:3486
#23 0x00007f0924178fe8 in QCoreApplication::notifyInternal2 (receiver=0x559f3a88c800, event=event@entry=0x7f08c8001f90) at kernel/qcoreapplication.cpp:1048
#24 0x00007f092417bb2d in QCoreApplication::sendEvent (event=0x7f08c8001f90, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x559f38d11f30) at kernel/qcoreapplication.cpp:1745
#26 0x00007f092417c0e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#27 0x00007f09241d39f3 in postEventSourceDispatch (s=0x559f38d494b0) at kernel/qeventdispatcher_glib.cpp:276
#28 0x00007f091de03387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f091de035c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f091de0364c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f09241d302f in QEventDispatcherGlib::processEvents (this=0x559f38d58e90, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#32 0x00007f091890e761 in QPAEventDispatcherGlib::processEvents (this=0x559f38d58e90, flags=...) at qeventdispatcher_glib.cpp:69
#33 0x00007f092417730a in QEventLoop::exec (this=this@entry=0x7ffe7c4556f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#34 0x00007f09241804d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#35 0x0000559f372e4868 in main (argc=<optimized out>, argv=<optimized out>) at ./discover/main.cpp:156

Possible duplicates by query: bug 403256, bug 402523, bug 402328.

Reported using DrKonqi