Application: plasma-discover (5.11.90)

Qt Version: 5.9.3
Frameworks Version: 5.42.0
Operating System: Linux 4.13.0-26-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
- What I was doing when the application crashed:
Searching in Discover, I opened a new report because this is an up to date neon dev (from git)

The crash can be reproduced sometimes.

-- Backtrace:
Application: Discover (plasma-discover), signal: Bus error
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fece67358c0 (LWP 5014))]

Thread 9 (Thread 0x7fec97dd3700 (LWP 5045)):
#0  0x00007fece1bc024d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fecdc9316f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ede74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fecdc8ee330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7fec900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7fec97dd2d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007fece25c58f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#8  0x00007fece25ca709 in QThreadPrivate::start (arg=0x2a19f90) at thread/qthread_unix.cpp:368
#9  0x00007fecde7776ba in start_thread (arg=0x7fec97dd3700) at pthread_create.c:333
#10 0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7feca60e0700 (LWP 5024)):
#0  0x00007fece1bc470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fecdc8ee38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7fec9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7feca60dfd00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fece25c58f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fece25ca709 in QThreadPrivate::start (arg=0x2d78db0) at thread/qthread_unix.cpp:368
#7  0x00007fecde7776ba in start_thread (arg=0x7feca60e0700) at pthread_create.c:333
#8  0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7feca7d96700 (LWP 5021)):
#0  0x00007fecdc932a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fecdc8ee23d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7feca00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7feca7d95d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fece25c58f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fece25ca709 in QThreadPrivate::start (arg=0x2c264d0) at thread/qthread_unix.cpp:368
#7  0x00007fecde7776ba in start_thread (arg=0x7feca7d96700) at pthread_create.c:333
#8  0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fecadfa0700 (LWP 5020)):
#0  0x00007fece1bc470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fecdc8ee38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7feca80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7fecadf9fd00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fece25c58f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fece25ca709 in QThreadPrivate::start (arg=0x3d96820) at thread/qthread_unix.cpp:368
#7  0x00007fecde7776ba in start_thread (arg=0x7fecadfa0700) at pthread_create.c:333
#8  0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fecb9a12700 (LWP 5019)):
#0  __GI___pthread_getspecific (key=3) at pthread_getspecific.c:30
#1  0x00007fecdc915060 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ee48d in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7fecb40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7fecb9a11c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fece25c58f4 in QThread::exec (this=this@entry=0x2b41660) at thread/qthread.cpp:515
#6  0x00007fece5992046 in QQuickPixmapReader::run (this=0x2b41660) at util/qquickpixmapcache.cpp:868
#7  0x00007fece25ca709 in QThreadPrivate::start (arg=0x2b41660) at thread/qthread_unix.cpp:368
#8  0x00007fecde7776ba in start_thread (arg=0x7fecb9a12700) at pthread_create.c:333
#9  0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fecc9554700 (LWP 5018)):
#0  0x00007fecdc8c220b in g_ptr_array_set_size () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fecdc8ed871 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ee2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7fecbc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7fecc9553ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fece25c58f4 in QThread::exec (this=this@entry=0x25deba0) at thread/qthread.cpp:515
#7  0x00007fece31c6d25 in QQmlThreadPrivate::run (this=0x25deba0) at qml/ftw/qqmlthread.cpp:147
#8  0x00007fece25ca709 in QThreadPrivate::start (arg=0x25deba0) at thread/qthread_unix.cpp:368
#9  0x00007fecde7776ba in start_thread (arg=0x7fecc9554700) at pthread_create.c:333
#10 0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fecca765700 (LWP 5017)):
#0  0x00007fece1bc470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fecdc8ee38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fece27f46cb in QEventDispatcherGlib::processEvents (this=0x7fecc40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7fecca764cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fece25c58f4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007fece44a4315 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fece25ca709 in QThreadPrivate::start (arg=0x7fece4718d40) at thread/qthread_unix.cpp:368
#8  0x00007fecde7776ba in start_thread (arg=0x7fecca765700) at pthread_create.c:333
#9  0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fecd3768700 (LWP 5016)):
#0  0x00007fece1bc470d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fecdc68bc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fecdc68d8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fecd5cbf1f9 in QXcbEventReader::run (this=0x255abe0) at qxcbconnection.cpp:1330
#4  0x00007fece25ca709 in QThreadPrivate::start (arg=0x255abe0) at thread/qthread_unix.cpp:368
#5  0x00007fecde7776ba in start_thread (arg=0x7fecd3768700) at pthread_create.c:333
#6  0x00007fece1bd03dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fece67358c0 (LWP 5014)):
[KCrash Handler]
#6  QScopedScopeLevelCounter::QScopedScopeLevelCounter (threadData=0x61006c0066002f, this=<synthetic pointer>) at ../../include/QtCore/5.9.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:304
#7  QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x3c939b0, event=event@entry=0x7ffd6a84a1e0) at kernel/qcoreapplication.cpp:1015
#8  0x00007fece5a44049 in QCoreApplication::sendEvent (event=0x7ffd6a84a1e0, receiver=0x3c939b0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:233
#9  QQuickKeysAttached::keyPressed (this=0x5862300, event=0x7ffd6a84a1e0, post=<optimized out>) at items/qquickitem.cpp:1384
#10 0x00007fece5a4ff23 in QQuickItemPrivate::deliverKeyEvent (this=0x39f1a80, e=0x7ffd6a84a1e0) at items/qquickitem.cpp:5024
#11 0x00007fece5a50185 in QQuickItem::event (this=0x2d1d7d0, ev=0x7ffd6a84a1e0) at items/qquickitem.cpp:7738
#12 0x00007fece3d8bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x2d1d7d0, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3722
#13 0x00007fece3d935a7 in QApplication::notify (this=0x7ffd6a84a5d0, receiver=0x2d1d7d0, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3481
#14 0x00007fece279edf8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x2d1d7d0, event=event@entry=0x7ffd6a84a1e0) at kernel/qcoreapplication.cpp:1018
#15 0x00007fece5a44049 in QCoreApplication::sendEvent (event=0x7ffd6a84a1e0, receiver=0x2d1d7d0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:233
#16 QQuickKeysAttached::keyPressed (this=0x2a8cd30, event=0x7ffd6a84a1e0, post=<optimized out>) at items/qquickitem.cpp:1384
#17 0x00007fece5a4ff23 in QQuickItemPrivate::deliverKeyEvent (this=0x290dcb0, e=0x7ffd6a84a1e0) at items/qquickitem.cpp:5024
#18 0x00007fece5a50185 in QQuickItem::event (this=0x290dc00, ev=0x7ffd6a84a1e0) at items/qquickitem.cpp:7738
#19 0x00007fece3d8bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x290dc00, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3722
#20 0x00007fece3d935a7 in QApplication::notify (this=0x7ffd6a84a5d0, receiver=0x290dc00, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3481
#21 0x00007fece279edf8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x290dc00, event=event@entry=0x7ffd6a84a1e0) at kernel/qcoreapplication.cpp:1018
#22 0x00007fece5a44049 in QCoreApplication::sendEvent (event=0x7ffd6a84a1e0, receiver=0x290dc00) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:233
#23 QQuickKeysAttached::keyPressed (this=0x3d2e850, event=0x7ffd6a84a1e0, post=<optimized out>) at items/qquickitem.cpp:1384
#24 0x00007fece5a4ff23 in QQuickItemPrivate::deliverKeyEvent (this=0x3d1b1b0, e=0x7ffd6a84a1e0) at items/qquickitem.cpp:5024
#25 0x00007fece5a50185 in QQuickItem::event (this=0x3d1b100, ev=0x7ffd6a84a1e0) at items/qquickitem.cpp:7738
#26 0x00007fece3d8bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x3d1b100, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3722
#27 0x00007fece3d935a7 in QApplication::notify (this=0x7ffd6a84a5d0, receiver=0x3d1b100, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3481
#28 0x00007fece279edf8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x3d1b100, event=event@entry=0x7ffd6a84a1e0) at kernel/qcoreapplication.cpp:1018
#29 0x00007fece5a60dbd in QCoreApplication::sendEvent (event=0x7ffd6a84a1e0, receiver=0x3d1b100) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:233
#30 QQuickWindow::sendEvent (this=<optimized out>, item=0x3d1b100, e=e@entry=0x7ffd6a84a1e0) at items/qquickwindow.cpp:2835
#31 0x00007fece5a60f1b in QQuickWindowPrivate::deliverKeyEvent (this=this@entry=0x2671d50, e=e@entry=0x7ffd6a84a1e0) at items/qquickwindow.cpp:1636
#32 0x00007fece5a60f6f in QQuickWindow::keyPressEvent (this=<optimized out>, e=0x7ffd6a84a1e0) at items/qquickwindow.cpp:1619
#33 0x00007fece3629f15 in QWindow::event (this=this@entry=0x2671c80, ev=ev@entry=0x7ffd6a84a1e0) at kernel/qwindow.cpp:2267
#34 0x00007fece5a68e85 in QQuickWindow::event (this=0x2671c80, e=0x7ffd6a84a1e0) at items/qquickwindow.cpp:1610
#35 0x00007fece3d8bb9c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x2671c80, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3722
#36 0x00007fece3d935a7 in QApplication::notify (this=0x7ffd6a84a5d0, receiver=0x2671c80, e=0x7ffd6a84a1e0) at kernel/qapplication.cpp:3481
#37 0x00007fece279edf8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x2671c80, event=event@entry=0x7ffd6a84a1e0) at kernel/qcoreapplication.cpp:1018
#38 0x00007fece361a408 in QCoreApplication::sendSpontaneousEvent (event=0x7ffd6a84a1e0, receiver=0x2671c80) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#39 QGuiApplicationPrivate::processKeyEvent (e=0x588bfe0) at kernel/qguiapplication.cpp:2075
#40 0x00007fece361f7a5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x588bfe0) at kernel/qguiapplication.cpp:1739
#41 0x00007fece35f981b in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:939
#42 0x00007fecd5d1e440 in userEventSourceDispatch (source=<optimized out>) at qeventdispatcher_glib.cpp:77
#43 0x00007fecdc8ee197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007fecdc8ee3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007fecdc8ee49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007fece27f46af in QEventDispatcherGlib::processEvents (this=0x258ee00, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#47 0x00007fece279ce2a in QEventLoop::exec (this=this@entry=0x7ffd6a84a4f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#48 0x00007fece27a5d64 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
#49 0x00007fece361520c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1679
#50 0x00007fece3d8baf5 in QApplication::exec () at kernel/qapplication.cpp:2910
#51 0x00000000004121ce in main (argc=1, argv=<optimized out>) at /workspace/build/discover/main.cpp:156

The reporter indicates this bug may be a duplicate of or related to bug 378339.

Possible duplicates by query: bug 379478.

Reported using DrKonqi