Application: plasma-discover (5.14.5)

Qt Version: 5.11.2
Frameworks Version: 5.54.0
Operating System: Linux 4.15.0-45-generic x86_64
Distribution: KDE neon User Edition 5.14

-- Information about the crash:
- What I was doing when the application crashed:
Discover crash after a few seconds. Several attempts.
The same after a reboot of NEON.

Context:
KDE neon 5.14,
KDE Plasma version: 5.14.5
KDE Framework: 5.54.0
Qt verion: 5.11.2
Kernel: 4.15.0-45-generic
Processor: 4 x AMD A8-7600 Radeon R7, 10 Compute Cores 4C+6G
There is today a very large list of 323 waiting update.
Last week Discover did sometimes work but I am not aware of any difference in the context.

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 0x7ffa5eac3200 (LWP 4422))]

Thread 18 (Thread 0x7ff9effff700 (LWP 4483)):
#0  0x00007ffa566b5ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7ff9efffec30, expected=0, futex_word=0x7ff9e80033b4) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7ff9efffed00, mutex=0x7ff9e8003360, cond=0x7ff9e8003388) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7ff9e8003388, mutex=0x7ff9e8003360, abstime=0x7ff9efffed00) at pthread_cond_wait.c:667
#3  0x00007ffa5a710880 in QWaitConditionPrivate::wait_relative (time=30000, this=0x7ff9e8003360) at thread/qwaitcondition_unix.cpp:133
#4  QWaitConditionPrivate::wait (time=30000, this=0x7ff9e8003360) at thread/qwaitcondition_unix.cpp:141
#5  QWaitCondition::wait (this=this@entry=0x7ff9e8003070, mutex=mutex@entry=0x7ff9e8002d80, time=30000) at thread/qwaitcondition_unix.cpp:215
#6  0x00007ffa5a70728d in QThreadPoolThread::run (this=0x7ff9e8003060) at thread/qthreadpool.cpp:146
#7  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x7ff9e8003060) at thread/qthread_unix.cpp:367
#8  0x00007ffa566af6db in start_thread (arg=0x7ff9effff700) at pthread_create.c:463
#9  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7ff9ed64c700 (LWP 4448)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e8d741664) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e8d741610, cond=0x562e8d741638) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e8d741638, mutex=0x562e8d741610) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ff9ed64c700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7ff9eee4f700 (LWP 4445)):
#0  0x00007ffa59fecbf9 in __GI___poll (fds=0x7ff9dc0018a0, nfds=1, timeout=49735) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffa544e4539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa5a93504b in QEventDispatcherGlib::processEvents (this=0x7ff9dc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ff9eee4eda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007ffa5a704bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x562e8a2777c0) at thread/qthread_unix.cpp:367
#7  0x00007ffa566af6db in start_thread (arg=0x7ff9eee4f700) at pthread_create.c:463
#8  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7ff9fc887700 (LWP 4441)):
#0  0x00007ffa59fe80b4 in __GI___libc_read (fd=31, buf=0x7ff9fc886b90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ffa54528cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e4027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa544e44e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffa5a93504b in QEventDispatcherGlib::processEvents (this=0x7ff9e8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ff9fc886da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007ffa5a704bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x562e8bbdac70) at thread/qthread_unix.cpp:367
#9  0x00007ffa566af6db in start_thread (arg=0x7ff9fc887700) at pthread_create.c:463
#10 0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7ff9fe4d6700 (LWP 4439)):
#0  0x00007ffa59fecbf9 in __GI___poll (fds=0x562e8a675c60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffa544e4539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e48d2 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa14707026 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffa5450c105 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffa566af6db in start_thread (arg=0x7ff9fe4d6700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7ff9fecd7700 (LWP 4438)):
#0  0x00007ffa59fe80b4 in __GI___libc_read (fd=19, buf=0x7ff9fecd6ce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ffa54528cd0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e4027 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa544e44e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffa544e4691 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ffa5450c105 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007ffa566af6db in start_thread (arg=0x7ff9fecd7700) at pthread_create.c:463
#8  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7ff9fffff700 (LWP 4437)):
#0  0x00007ffa59fecbf9 in __GI___poll (fds=0x7ff9f8004e10, nfds=1, timeout=9753) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffa544e4539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa5a93504b in QEventDispatcherGlib::processEvents (this=0x7ff9f8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ff9ffffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007ffa5a704bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x562e8a645190) at thread/qthread_unix.cpp:367
#7  0x00007ffa566af6db in start_thread (arg=0x7ff9fffff700) at pthread_create.c:463
#8  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7ffa1effd700 (LWP 4436)):
#0  0x00007ffa544e3f44 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffa544e44e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa5a93504b in QEventDispatcherGlib::processEvents (this=0x7ffa00000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ffa1effcd30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007ffa5a704bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007ffa5dd32826 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x562e8a5237a0) at thread/qthread_unix.cpp:367
#8  0x00007ffa566af6db in start_thread (arg=0x7ffa1effd700) at pthread_create.c:463
#9  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7ffa1f7fe700 (LWP 4432)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89b98a38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89b989e8, cond=0x562e89b98a10) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89b98a10, mutex=0x562e89b989e8) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa1f7fe700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7ffa17fff700 (LWP 4431)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89b98a38) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89b989e8, cond=0x562e89b98a10) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89b98a10, mutex=0x562e89b989e8) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa17fff700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7ffa1ffff700 (LWP 4430)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89b984b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89b98468, cond=0x562e89b98490) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89b98490, mutex=0x562e89b98468) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa1ffff700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7ffa2cb8d700 (LWP 4429)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89b984bc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89b98468, cond=0x562e89b98490) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89b98490, mutex=0x562e89b98468) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa2cb8d700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ffa2d38e700 (LWP 4428)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89b984bc) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89b98468, cond=0x562e89b98490) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89b98490, mutex=0x562e89b98468) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa2d38e700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ffa2db8f700 (LWP 4427)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89acec18) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89acebc8, cond=0x562e89acebf0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89acebf0, mutex=0x562e89acebc8) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa2db8f700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ffa2ed2f700 (LWP 4426)):
#0  0x00007ffa566b59f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562e89c109c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562e89c10978, cond=0x562e89c109a0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562e89c109a0, mutex=0x562e89c10978) at pthread_cond_wait.c:655
#3  0x00007ffa333d323b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007ffa333d2f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007ffa566af6db in start_thread (arg=0x7ffa2ed2f700) at pthread_create.c:463
#6  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ffa4253f700 (LWP 4425)):
#0  0x00007ffa59fecbf9 in __GI___poll (fds=0x7ffa34004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffa544e4539 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa5a93504b in QEventDispatcherGlib::processEvents (this=0x7ffa34000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ffa4253ed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007ffa5a704bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007ffa5b2b04f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x562e89adbe50) at thread/qthread_unix.cpp:367
#8  0x00007ffa566af6db in start_thread (arg=0x7ffa4253f700) at pthread_create.c:463
#9  0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffa43757700 (LWP 4424)):
#0  0x00007ffa544e1449 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffa544e3e62 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffa544e44e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffa5a93504b in QEventDispatcherGlib::processEvents (this=0x7ffa3c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ffa43756d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007ffa5a704bba in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007ffa5c615e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007ffa5a70fadb in QThreadPrivate::start (arg=0x7ffa5c88dd60) at thread/qthread_unix.cpp:367
#9  0x00007ffa566af6db in start_thread (arg=0x7ffa43757700) at pthread_create.c:463
#10 0x00007ffa59ff988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffa5eac3200 (LWP 4422)):
[KCrash Handler]
#6  0x00007ffa5d9c6d62 in AbstractResource::reportNewState (this=0x562e8da502b0) at ./libdiscover/resources/AbstractResource.cpp:143
#7  0x00007ffa5a90a18f in QtPrivate::QSlotObjectBase::call (a=0x7ffec82a3580, r=0x562e8da502b0, this=0x562e8a689120) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#8  QMetaObject::activate (sender=sender@entry=0x562e8da502b0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3754
#9  0x00007ffa5a90a747 in QMetaObject::activate (sender=sender@entry=0x562e8da502b0, m=m@entry=0x7ffa5dbf9400 <AbstractResource::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x0) at kernel/qobject.cpp:3633
#10 0x00007ffa5d9d7cf3 in AbstractResource::stateChanged (this=this@entry=0x562e8da502b0) at ./obj-x86_64-linux-gnu/libdiscover/DiscoverCommon_autogen/3YJK5W5UP7/moc_AbstractResource.cpp:430
#11 0x00007ff9ef1daa2d in FwupdResource::setState (this=this@entry=0x562e8da502b0, state=state@entry=AbstractResource::Upgradeable) at ./libdiscover/backends/FwupdBackend/FwupdResource.cpp:141
#12 0x00007ff9ef1dfcb5 in FwupdBackend::createApp (this=this@entry=0x562e8bc07580, device=device@entry=0x7ff9f4004690) at ./libdiscover/backends/FwupdBackend/FwupdBackend.cpp:235
#13 0x00007ff9ef1e04e7 in FwupdBackend::addUpdates (this=0x562e8bc07580) at ./libdiscover/backends/FwupdBackend/FwupdBackend.cpp:146
#14 0x00007ff9ef1e0dc1 in FwupdBackend::<lambda()>::operator() (__closure=0x562e8bc2a990) 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_=0x562e8bc2a980, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:421
#18 0x00007ffa5a90a18f in QtPrivate::QSlotObjectBase::call (a=0x7ffec82a3870, r=0x562e8bc07580, this=0x562e8bc2a980) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#19 QMetaObject::activate (sender=0x562e8bbdf970, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3754
#20 0x00007ffa5a70d223 in QFutureWatcherBase::event (this=<optimized out>, event=0x7ff9e0006160) at thread/qfuturewatcher.cpp:332
#21 0x00007ffa5bf02e1c in QApplicationPrivate::notify_helper (this=this@entry=0x562e89a67520, receiver=receiver@entry=0x562e8bbdf970, e=e@entry=0x7ff9e0006160) at kernel/qapplication.cpp:3727
#22 0x00007ffa5bf0a3ef in QApplication::notify (this=0x7ffec82a3e80, receiver=0x562e8bbdf970, e=0x7ff9e0006160) at kernel/qapplication.cpp:3486
#23 0x00007ffa5a8dafe8 in QCoreApplication::notifyInternal2 (receiver=0x562e8bbdf970, event=event@entry=0x7ff9e0006160) at kernel/qcoreapplication.cpp:1048
#24 0x00007ffa5a8ddb2d in QCoreApplication::sendEvent (event=0x7ff9e0006160, 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=0x562e89a66f30) at kernel/qcoreapplication.cpp:1745
#26 0x00007ffa5a8de0e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#27 0x00007ffa5a9359f3 in postEventSourceDispatch (s=0x562e89ad0e10) at kernel/qeventdispatcher_glib.cpp:276
#28 0x00007ffa544e4387 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007ffa544e45c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007ffa544e464c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007ffa5a93502f in QEventDispatcherGlib::processEvents (this=0x562e89ac8e40, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#32 0x00007ffa4ef37761 in QPAEventDispatcherGlib::processEvents (this=0x562e89ac8e40, flags=...) at qeventdispatcher_glib.cpp:69
#33 0x00007ffa5a8d930a in QEventLoop::exec (this=this@entry=0x7ffec82a3dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#34 0x00007ffa5a8e24d0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#35 0x0000562e87db5868 in main (argc=<optimized out>, argv=<optimized out>) at ./discover/main.cpp:156

Possible duplicates by query: bug 403858, bug 403538, bug 403383, bug 403341, bug 403290.

Reported using DrKonqi