Bug 406221

Application: plasma-discover (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-4-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
I've searched for GDB then I've started an installation and then I've looked to another GDB software for details when Discovery 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 0x7f39565fe800 (LWP 96462))]

Thread 12 (Thread 0x7f3925e52700 (LWP 96509)):
#0  0x00007f395a410794 in __GI___libc_read (nbytes=16, buf=0x7f3925e51b80, fd=25) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f395a410794 in __GI___libc_read (fd=25, buf=0x7f3925e51b80, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3958e92aa0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3958e4cc0f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3958e4d0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f3926673700 (LWP 96505)):
#0  0x00007f395a414b69 in __GI___poll (fds=0x7f390c0018a0, nfds=1, timeout=114719) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3958e4d136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3926ffd700 (LWP 96477)):
#0  0x00007ffe1bbf19f9 in  ()
#1  0x00007ffe1bbf1bfc in clock_gettime ()
#2  0x00007f395a42d386 in __GI___clock_gettime (clock_id=1, tp=0x7f3926ffcae0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f395a9281a1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f395a9269d9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f395a926fd5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f395a9285fe in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3958e4c669 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f3958e4d06b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#15 0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f3934d6a700 (LWP 96472)):
#0  0x00007f3958e96e84 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3958e4d05e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3935a60700 (LWP 96471)):
#0  0x00007f395a410794 in __GI___libc_read (nbytes=16, buf=0x7f3935a5fb80, fd=20) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f395a410794 in __GI___libc_read (fd=20, buf=0x7f3935a5fb80, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3958e92aa0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3958e4cc0f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3958e4d0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3936261700 (LWP 96470)):
#0  0x00007f3958e96e84 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3958e4caa0 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3958e4d0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3958e4d4c2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f39374d4f66 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f3958e75425 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3936a62700 (LWP 96469)):
#0  0x00007f395a410794 in __GI___libc_read (nbytes=16, buf=0x7f3936a61ce0, fd=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f395a410794 in __GI___libc_read (fd=16, buf=0x7f3936a61ce0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3958e92aa0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3958e4cc0f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3958e4d0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3958e4d2a1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f3958e75425 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f394557f700 (LWP 96468)):
#0  0x00007f395a414b69 in __GI___poll (fds=0x7f3938004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3958e4d136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f395c15c476 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f394ded7700 (LWP 96465)):
#0  0x00007f395a72ee18 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f395a928cc1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f3958e4cb11 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3958e4d0e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f395aeb3c65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f394f0e8700 (LWP 96464)):
#0  0x00007f395a414b69 in __GI___poll (fds=0x7f3948018910, nfds=1, timeout=6721) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3958e4d136 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3958e4d25c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f395a92887b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f395a8d627b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f395a725ec6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f395bbfb545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3955129700 (LWP 96463)):
#0  0x00007f395a414b69 in __GI___poll (fds=0x7f3955128cb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3958d6ccf7 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f3958d6e91a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f3955ed6d79 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f395a72faa7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f39598c8fa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007f395a41f82f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f39565fe800 (LWP 96462)):
[KCrash Handler]
#6  0x00007f395a8e07d7 in QMetaObject::cast(QObject const*) const () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f395aef212c in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f395aef9412 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f395aef94b2 in QQmlDelegateModel::release(QObject*) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f395aeedd79 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f395aeee206 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f395aeee510 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f395aeef745 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f395ae1dd72 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f395ae1b044 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f395ae9b694 in QQmlBinding::slowWrite(QQmlPropertyData const&, QQmlPropertyData const&, QV4::Value const&, bool, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f395ae9c7b0 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007f395ae9dd7c in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007f395ae9a353 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007f395ae715f3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007f395ae0ba8a in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f395a90023f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f395ae715f3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f395ae0ba8a in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f395a90023f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f395ae9ff58 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f395adeaa69 in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, QV4::Value*, int, QV4::Value*, int) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#28 0x00007f39267a84aa in  ()
#29 0x00007f394d298350 in  ()
#30 0x00007f394d298370 in  ()
#31 0x000055a781d54ac0 in  ()
#32 0x0000000000000000 in  ()
[Inferior 1 (process 96462) detached]

Reported using DrKonqi