Application: plasma-discover (5.10.90)

Qt Version: 5.9.1
Frameworks Version: 5.37.0
Operating System: Linux 4.10.0-32-generic x86_64
Distribution: KDE neon Developer Edition

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

Possibly related to https://bugs.kde.org/show_bug.cgi?id=383920

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".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7fc414c1d8c0 (LWP 3514))]

Thread 11 (Thread 0x7fc3d25f1700 (LWP 4150)):
[KCrash Handler]
#6  wl_proxy_create_wrapper (proxy=0x0) at ../src/wayland-client.c:2038
#7  0x00007fc3f9d8e48d in ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#8  0x00007fc3f9d7cdec in ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
#9  0x00007fc3f9fcef68 in QtWaylandClient::QWaylandEglWindow::updateSurface (this=this@entry=0x49ade60, create=create@entry=true) at ../../../../hardwareintegration/client/wayland-egl/qwaylandeglwindow.cpp:141
#10 0x00007fc3f9fcd54d in QtWaylandClient::QWaylandGLContext::makeCurrent (this=0x56d8ea0, surface=<optimized out>) at ../../../../hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp:410
#11 0x00007fc4124dbe69 in QOpenGLContext::makeCurrent (this=0x56d9370, surface=surface@entry=0x40d98f0) at kernel/qopenglcontext.cpp:984
#12 0x00007fc4142d20b0 in QSGRenderThread::invalidateOpenGL (this=this@entry=0x56d0da0, window=0x40d98e0, inDestructor=<optimized out>, fallback=0x0) at scenegraph/qsgthreadedrenderloop.cpp:487
#13 0x00007fc4142d9752 in QSGRenderThread::event (this=0x56d0da0, e=0x7a8b7e0) at scenegraph/qsgthreadedrenderloop.cpp:402
#14 0x00007fc4142d819c in QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x56d0da0) at scenegraph/qsgthreadedrenderloop.cpp:702
#15 0x00007fc4142d8a05 in QSGRenderThread::run (this=0x56d0da0) at scenegraph/qsgthreadedrenderloop.cpp:730
#16 0x00007fc41184c989 in QThreadPrivate::start (arg=0x56d0da0) at thread/qthread_unix.cpp:368
#17 0x00007fc40e2ad6ba in start_thread (arg=0x7fc3d25f1700) at pthread_create.c:333
#18 0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fc3e2d94700 (LWP 3966)):
#0  0x00007fff4a5f3b0b in clock_gettime ()
#1  0x00007fc410e5e836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7fc3e2d93a70) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fc411a75251 in qt_clock_gettime (ts=0x7fc3e2d93a70, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007fc411a73a49 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fc3d8003900) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007fc411a73fb5 in QTimerInfoList::timerWait (this=0x7fc3d8003900, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007fc411a75cec in timerSourcePrepareHelper (timeout=0x7fc3e2d93b34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#8  idleTimerSourcePrepare (source=<optimized out>, timeout=0x7fc3e2d93b34) at kernel/qeventdispatcher_glib.cpp:212
#9  0x00007fc40c42491d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fc40c4252bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3d80034a0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#13 0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3e2d93d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#14 0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#15 0x00007fc41184c989 in QThreadPrivate::start (arg=0x4b27ff0) at thread/qthread_unix.cpp:368
#16 0x00007fc40e2ad6ba in start_thread (arg=0x7fc3e2d94700) at pthread_create.c:333
#17 0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fc3d2ffe700 (LWP 3549)):
#0  0x00007fc410e4470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc40c42538c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3c40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3d2ffdd00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fc41184c989 in QThreadPrivate::start (arg=0x7fc3e40ce080) at thread/qthread_unix.cpp:368
#7  0x00007fc40e2ad6ba in start_thread (arg=0x7fc3d2ffe700) at pthread_create.c:333
#8  0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fc3d37ff700 (LWP 3525)):
#0  0x00007fc410e4470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc40c42538c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3d37fed00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fc41184c989 in QThreadPrivate::start (arg=0x3ae73b0) at thread/qthread_unix.cpp:368
#7  0x00007fc40e2ad6ba in start_thread (arg=0x7fc3d37ff700) at pthread_create.c:333
#8  0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fc3e3595700 (LWP 3521)):
#0  0x00007fc410e4470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fc40c42538c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3e3594d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fc41184c989 in QThreadPrivate::start (arg=0x39cc6c0) at thread/qthread_unix.cpp:368
#7  0x00007fc40e2ad6ba in start_thread (arg=0x7fc3e3595700) at pthread_create.c:333
#8  0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fc3e3fff700 (LWP 3520)):
#0  0x00007fff4a5f3b0b in clock_gettime ()
#1  0x00007fc410e5e836 in __GI___clock_gettime (clock_id=clock_id@entry=1, tp=tp@entry=0x7fc3e3ffeae0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fc411a75251 in qt_clock_gettime (ts=0x7fc3e3ffeae0, clock=<optimized out>) at kernel/qelapsedtimer_unix.cpp:111
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007fc411a73a49 in QTimerInfoList::updateCurrentTime (this=0x7fc3dc002ed0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007fc411a760a5 in timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:146
#7  timerSourceCheck (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:173
#8  0x00007fc40c424dc1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fc40c425330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#12 0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3e3ffed00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#13 0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#14 0x00007fc41184c989 in QThreadPrivate::start (arg=0x39bfaa0) at thread/qthread_unix.cpp:368
#15 0x00007fc40e2ad6ba in start_thread (arg=0x7fc3e3fff700) at pthread_create.c:333
#16 0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fc3f0fc5700 (LWP 3519)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc41184d8eb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x24698a0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x24696e8, mutex=mutex@entry=0x24696e0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007fc4142d810d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x24696d8) at scenegraph/qsgthreadedrenderloop.cpp:245
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x2469660) at scenegraph/qsgthreadedrenderloop.cpp:701
#5  0x00007fc4142d8a05 in QSGRenderThread::run (this=0x2469660) at scenegraph/qsgthreadedrenderloop.cpp:730
#6  0x00007fc41184c989 in QThreadPrivate::start (arg=0x2469660) at thread/qthread_unix.cpp:368
#7  0x00007fc40e2ad6ba in start_thread (arg=0x7fc3f0fc5700) at pthread_create.c:333
#8  0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fc3f1ca4700 (LWP 3518)):
#0  0x00007fc40c424dc4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc40c425330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3f1ca3c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fc411847cd4 in QThread::exec (this=this@entry=0x2395fa0) at thread/qthread.cpp:515
#6  0x00007fc414258256 in QQuickPixmapReader::run (this=0x2395fa0) at util/qquickpixmapcache.cpp:868
#7  0x00007fc41184c989 in QThreadPrivate::start (arg=0x2395fa0) at thread/qthread_unix.cpp:368
#8  0x00007fc40e2ad6ba in start_thread (arg=0x7fc3f1ca4700) at pthread_create.c:333
#9  0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fc3fbfff700 (LWP 3517)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007fc410e40259 in read () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007fc40c4686f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc40c424e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc40c425330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc3fbffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#8  0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#9  0x00007fc4122480c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fc41184c989 in QThreadPrivate::start (arg=0x1f40f50) at thread/qthread_unix.cpp:368
#11 0x00007fc40e2ad6ba in start_thread (arg=0x7fc3fbfff700) at pthread_create.c:333
#12 0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fc40146b700 (LWP 3516)):
#0  0x00007fc40c469a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc40c4247f7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc40c4252bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc411a7594b in QEventDispatcherGlib::processEvents (this=0x7fc3fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fc40146acd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fc411847cd4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#7  0x00007fc414d65b75 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fc41184c989 in QThreadPrivate::start (arg=0x7fc414ddbda0) at thread/qthread_unix.cpp:368
#9  0x00007fc40e2ad6ba in start_thread (arg=0x7fc40146b700) at pthread_create.c:333
#10 0x00007fc410e503dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fc414c1d8c0 (LWP 3514)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fc41184d8eb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x56d0fe0) at thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x56d0de0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:215
#3  0x00007fc4142d6bba in QSGThreadedRenderLoop::releaseResources (this=this@entry=0x1fd39e0, w=w@entry=0x56d10c0, inDestructor=inDestructor@entry=true) at scenegraph/qsgthreadedrenderloop.cpp:1128
#4  0x00007fc4142d7d23 in QSGThreadedRenderLoop::windowDestroyed (this=0x1fd39e0, window=0x40d98e0) at scenegraph/qsgthreadedrenderloop.cpp:879
#5  0x00007fc414325a08 in QQuickWindow::~QQuickWindow (this=0x40d98e0, __in_chrg=<optimized out>) at items/qquickwindow.cpp:1286
#6  0x00007fc400213515 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#7  0x00007fc411a4dc90 in QObject::event (this=this@entry=0x40d98e0, e=<optimized out>) at kernel/qobject.cpp:1237
#8  0x00007fc4124ad298 in QWindow::event (this=this@entry=0x40d98e0, ev=ev@entry=0x7a8c2f0) at kernel/qwindow.cpp:2289
#9  0x00007fc41432ef45 in QQuickWindow::event (this=0x40d98e0, e=0x7a8c2f0) at items/qquickwindow.cpp:1607
#10 0x00007fc4001f6851 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so
#11 0x00007fc412a173fc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x40d98e0, e=0x7a8c2f0) at kernel/qapplication.cpp:3717
#12 0x00007fc412a1ee07 in QApplication::notify (this=0x7fff4a588b30, receiver=0x40d98e0, e=0x7a8c2f0) at kernel/qapplication.cpp:3476
#13 0x00007fc411a20798 in QCoreApplication::notifyInternal2 (receiver=0x40d98e0, event=event@entry=0x7a8c2f0) at kernel/qcoreapplication.cpp:1018
#14 0x00007fc411a22f7b in QCoreApplication::sendEvent (event=0x7a8c2f0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1ea3150) at kernel/qcoreapplication.cpp:1678
#16 0x00007fc411a233e8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1532
#17 0x00007fc411a76323 in postEventSourceDispatch (s=0x1ecb800) at kernel/qeventdispatcher_glib.cpp:276
#18 0x00007fc40c425197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fc40c4253f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fc40c42549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fc411a7592f in QEventDispatcherGlib::processEvents (this=0x1f1c060, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#22 0x00007fc411a1e7ca in QEventLoop::exec (this=this@entry=0x7fff4a588a50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#23 0x00007fc411a27704 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#24 0x0000000000411b9e in ?? ()
#25 0x00007fc410d69830 in __libc_start_main (main=0x411180, argc=1, argv=0x7fff4a588cf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4a588ce8) at ../csu/libc-start.c:291
#26 0x0000000000411cb9 in _start ()

Reported using DrKonqi