Application: plasma-discover (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.51.0
Operating System: Linux 4.15.0-34-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
- What I was doing when the application crashed:
open discover every time crash for last  days after sep 09 2018

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f791b4ad8c0 (LWP 6162))]

Thread 8 (Thread 0x7f78d7fff700 (LWP 6170)):
#0  0x00007f791675f74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f78e490f155 in send_dg (ansp2_malloced=0x7f78d7ffde68, resplen2=0x7f78d7ffde64, anssizp2=0x7f78d7ffde60, ansp2=0x7f78d7ffde80, anscp=0x7f78d7ffde70, gotsomewhere=<synthetic pointer>, v_circuit=<synthetic pointer>, ns=0, terrno=0x7f78d7ffc8b8, anssizp=0x7f78d7ffc9f0, ansp=0x7f78d7ffc8a8, buflen2=36, buf2=0x7f78d7ffca44 "y\352\001", buflen=36, buf=0x7f78d7ffca20 "\300~\001", statp=0x7f78d7fffdb8) at res_send.c:1162
#2  __libc_res_nsend (statp=statp@entry=0x7f78d7fffdb8, buf=buf@entry=0x7f78d7ffca20 "\300~\001", buflen=buflen@entry=36, buf2=buf2@entry=0x7f78d7ffca44 "y\352\001", buflen2=buflen2@entry=36, ans=ans@entry=0x7f78d7ffd630 "y\352\201\200", anssiz=2048, ansp=0x7f78d7ffde70, ansp2=0x7f78d7ffde80, nansp2=0x7f78d7ffde60, resplen2=0x7f78d7ffde64, ansp2_malloced=0x7f78d7ffde68) at res_send.c:538
#3  0x00007f78e490cd62 in __GI___libc_res_nquery (statp=statp@entry=0x7f78d7fffdb8, name=name@entry=0x7f78d0002e88 "autoconfig.kde.org", class=class@entry=1, type=type@entry=62321, answer=answer@entry=0x7f78d7ffd630 "y\352\201\200", anslen=anslen@entry=2048, answerp=0x7f78d7ffde70, answerp2=0x7f78d7ffde80, nanswerp2=0x7f78d7ffde60, resplen2=0x7f78d7ffde64, answerp2_malloced=0x7f78d7ffde68) at res_query.c:227
#4  0x00007f78e490d8f8 in __libc_res_nquerydomain (domain=0x0, answerp2_malloced=0x7f78d7ffde68, resplen2=0x7f78d7ffde64, nanswerp2=0x7f78d7ffde60, answerp2=0x7f78d7ffde80, answerp=0x7f78d7ffde70, anslen=2048, answer=0x7f78d7ffd630 "y\352\201\200", type=62321, class=1, name=0x7f78d0002e88 "autoconfig.kde.org", statp=0x7f78d7fffdb8) at res_query.c:597
#5  __GI___libc_res_nsearch (statp=0x7f78d7fffdb8, name=name@entry=0x7f78d0002e88 "autoconfig.kde.org", class=class@entry=1, type=type@entry=62321, answer=answer@entry=0x7f78d7ffd630 "y\352\201\200", anslen=anslen@entry=2048, answerp=0x7f78d7ffde70, answerp2=0x7f78d7ffde80, nanswerp2=0x7f78d7ffde60, resplen2=0x7f78d7ffde64, answerp2_malloced=0x7f78d7ffde68) at res_query.c:381
#6  0x00007f78e42eab89 in _nss_dns_gethostbyname4_r (name=name@entry=0x7f78d0002e88 "autoconfig.kde.org", pat=pat@entry=0x7f78d7ffe4a8, buffer=buffer@entry=0x7f78d7ffdef0 "\377\002", buflen=buflen@entry=1064, errnop=errnop@entry=0x7f78d7ffe498, herrnop=herrnop@entry=0x7f78d7ffe4c0, ttlp=0x0) at nss_dns/dns-host.c:326
#7  0x00007f791674fc58 in gaih_inet (name=name@entry=0x7f78d0002e88 "autoconfig.kde.org", service=<optimized out>, req=req@entry=0x7f78d7ffe730, pai=pai@entry=0x7f78d7ffe598, naddrs=naddrs@entry=0x7f78d7ffe594) at ../sysdeps/posix/getaddrinfo.c:870
#8  0x00007f7916752d5e in __GI_getaddrinfo (name=<optimized out>, service=0x0, hints=0x7f78d7ffe730, pai=0x7f78d7ffe728) at ../sysdeps/posix/getaddrinfo.c:2425
#9  0x00007f7914676e54 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007f79146650bb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f791715dbc7 in QThreadPoolThread::run (this=0x7f78d8006420) at thread/qthreadpool.cpp:101
#12 0x00007f7917167727 in QThreadPrivate::start (arg=0x7f78d8006420) at thread/qthread_unix.cpp:367
#13 0x00007f79132036ba in start_thread (arg=0x7f78d7fff700) at pthread_create.c:333
#14 0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f78e5b20700 (LWP 6168)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f791715afa4 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=1, u=...) at thread/qsemaphore.cpp:264
#5  QSemaphore::acquire (this=this@entry=0x7f78e5b1e140, n=n@entry=1) at thread/qsemaphore.cpp:328
#6  0x00007f79173561b6 in QMetaObject::activate (sender=0x2fee440, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3739
#7  0x00007f7914636378 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007f79146d7d3d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007f7917355f79 in QMetaObject::activate (sender=0x7f78d8004060, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#10 0x00007f791462bc02 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007f791462c4cd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007f7917355f79 in QMetaObject::activate (sender=0x7f78d8004700, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#13 0x00007f79146d1d77 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007f79146ce0db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#15 0x00007f79146ceac6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007f79146b18d1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#17 0x00007f7917355f79 in QMetaObject::activate (sender=0x7f78d80078d0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#18 0x00007f791467c973 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#19 0x00007f791467ca2c in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007f7914690371 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007f791898339c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x7f78d8008d30, e=0x7f78e5b1fad0) at kernel/qapplication.cpp:3727
#22 0x00007f791898aab0 in QApplication::notify (this=0x7fffc37e1650, receiver=0x7f78d8008d30, e=0x7f78e5b1fad0) at kernel/qapplication.cpp:3486
#23 0x00007f7917329228 in QCoreApplication::notifyInternal2 (receiver=0x7f78d8008d30, event=event@entry=0x7f78e5b1fad0) at kernel/qcoreapplication.cpp:1048
#24 0x00007f7917380d1d in QCoreApplication::sendEvent (event=0x7f78e5b1fad0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 socketNotifierSourceDispatch (source=0x7f78d8002c00) at kernel/qeventdispatcher_glib.cpp:106
#26 0x00007f791139e197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f791139e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f791139e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f79173800bb in QEventDispatcherGlib::processEvents (this=0x7f78d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#30 0x00007f79173275ba in QEventLoop::exec (this=this@entry=0x7f78e5b1fcf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#31 0x00007f791715c5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#32 0x00007f7917167727 in QThreadPrivate::start (arg=0x2fde490) at thread/qthread_unix.cpp:367
#33 0x00007f79132036ba in start_thread (arg=0x7f78e5b20700) at pthread_create.c:333
#34 0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f78e7059700 (LWP 6167)):
#0  0x00007f79113e2a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f791139e290 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f791139e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f79173800bb in QEventDispatcherGlib::processEvents (this=0x7f78e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f79173275ba in QEventLoop::exec (this=this@entry=0x7f78e7058cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007f791715c5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007f7917167727 in QThreadPrivate::start (arg=0x2fa2110) at thread/qthread_unix.cpp:367
#7  0x00007f79132036ba in start_thread (arg=0x7f78e7059700) at pthread_create.c:333
#8  0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f78efc72700 (LWP 6166)):
#0  0x00007f79113e2a79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f791139d464 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f791139e346 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f791139e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f79173800bb in QEventDispatcherGlib::processEvents (this=0x7f78e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f79173275ba in QEventLoop::exec (this=this@entry=0x7f78efc71c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f791715c5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#7  0x00007f791a5acf86 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f7917167727 in QThreadPrivate::start (arg=0x2d24810) at thread/qthread_unix.cpp:367
#9  0x00007f79132036ba in start_thread (arg=0x7f78efc72700) at pthread_create.c:333
#10 0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f78ff5ef700 (LWP 6165)):
#0  0x00007f791675b27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f79113e16f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f791139de74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f791139e330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f791139e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f79173800bb in QEventDispatcherGlib::processEvents (this=0x7f78f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f79173275ba in QEventLoop::exec (this=this@entry=0x7f78ff5eecd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007f791715c5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007f7917ce7195 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f7917167727 in QThreadPrivate::start (arg=0x25a13b0) at thread/qthread_unix.cpp:367
#10 0x00007f79132036ba in start_thread (arg=0x7f78ff5ef700) at pthread_create.c:333
#11 0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f7904c81700 (LWP 6164)):
#0  0x00007f791675b27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f79113e16f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f791139de74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f791139e330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f791139e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f79173800bb in QEventDispatcherGlib::processEvents (this=0x7f78f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f79173275ba in QEventLoop::exec (this=this@entry=0x7f7904c80cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007f791715c5e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007f79190a2f35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f7917167727 in QThreadPrivate::start (arg=0x7f791931bd60) at thread/qthread_unix.cpp:367
#10 0x00007f79132036ba in start_thread (arg=0x7f7904c81700) at pthread_create.c:333
#11 0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f79086e7700 (LWP 6163)):
#0  0x00007f791675f74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f791113bc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f791113d8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f790b0fc489 in QXcbEventReader::run (this=0x24d59d0) at qxcbconnection.cpp:1388
#4  0x00007f7917167727 in QThreadPrivate::start (arg=0x24d59d0) at thread/qthread_unix.cpp:367
#5  0x00007f79132036ba in start_thread (arg=0x7f79086e7700) at pthread_create.c:333
#6  0x00007f791676b41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f791b4ad8c0 (LWP 6162)):
[KCrash Handler]
#6  0x00007f7916699428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f791669b02a in __GI_abort () at abort.c:89
#8  0x00007f79166db7ea in __libc_message (do_abort=2, fmt=fmt@entry=0x7f79167f4ed8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007f79166e4dfb in malloc_printerr (ar_ptr=0x7f7916a28b20 <main_arena>, ptr=0x300b450, str=0x7f79167f1c75 "corrupted size vs. prev_size", action=3) at malloc.c:5006
#10 _int_free (av=0x7f7916a28b20 <main_arena>, p=<optimized out>, have_lock=0) at malloc.c:4014
#11 0x00007f79166e853c in __GI___libc_free (mem=<optimized out>) at malloc.c:2968
#12 0x00007f791725d65d in QSharedDataPointer<QFileInfoPrivate>::operator= (o=..., this=0x2e56c98, this@entry=0x300b418) at ../../include/QtCore/../../src/corelib/tools/qshareddata.h:100
#13 QFileInfo::operator= (this=this@entry=0x2e56c98, fileinfo=...) at io/qfileinfo.cpp:457
#14 0x00007f7917255299 in QDirIteratorPrivate::entryMatches (fileInfo=..., fileName=..., this=0x2e56c50) at io/qdiriterator.cpp:222
#15 QDirIteratorPrivate::advance (this=0x2e56c50) at io/qdiriterator.cpp:261
#16 0x00007f7917256264 in QDirIterator::next (this=this@entry=0x7fffc37e0cd0) at io/qdiriterator.cpp:494
#17 0x00007f78e771417b in KNSBackendFactory::newInstance (this=this@entry=0x2e55680, parent=0x25f3c10) at /workspace/build/libdiscover/backends/KNSBackend/KNSBackend.cpp:71
#18 0x00007f791a24d030 in DiscoverBackendsFactory::backendForFile (this=this@entry=0x7fffc37e0f3f, libname=..., name=...) at /workspace/build/libdiscover/DiscoverBackendsFactory.cpp:65
#19 0x00007f791a24d6b2 in DiscoverBackendsFactory::backend (this=this@entry=0x7fffc37e0f3f, name=...) at /workspace/build/libdiscover/DiscoverBackendsFactory.cpp:51
#20 0x00007f791a24db16 in DiscoverBackendsFactory::<lambda(const QString&)>::operator() (name=..., __closure=<synthetic pointer>) at /workspace/build/libdiscover/DiscoverBackendsFactory.cpp:99
#21 kTransform<QVector<AbstractResourcesBackend*>, QStringList, DiscoverBackendsFactory::allBackends() const::<lambda(const QString&)> > (op=..., input=...) at /workspace/build/libdiscover/utils.h:48
#22 DiscoverBackendsFactory::allBackends (this=this@entry=0x7fffc37e0f3f) at /workspace/build/libdiscover/DiscoverBackendsFactory.cpp:99
#23 0x00007f791a237d07 in ResourcesModel::registerAllBackends (this=0x25f3c10) at /workspace/build/libdiscover/resources/ResourcesModel.cpp:208
#24 0x00007f791a25c635 in ResourcesModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /workspace/build/obj-x86_64-linux-gnu/libdiscover/moc_ResourcesModel.cpp:291
#25 0x00007f7917356fb9 in QObject::event (this=0x25f3c10, e=<optimized out>) at kernel/qobject.cpp:1251
#26 0x00007f791898339c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x25f3c10, e=0x25f40e0) at kernel/qapplication.cpp:3727
#27 0x00007f791898aab0 in QApplication::notify (this=0x7fffc37e1650, receiver=0x25f3c10, e=0x25f40e0) at kernel/qapplication.cpp:3486
#28 0x00007f7917329228 in QCoreApplication::notifyInternal2 (receiver=0x25f3c10, event=event@entry=0x25f40e0) at kernel/qcoreapplication.cpp:1048
#29 0x00007f791732be2e in QCoreApplication::sendEvent (event=0x25f40e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x24b99f0) at kernel/qcoreapplication.cpp:1745
#31 0x00007f791732c2a8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#32 0x00007f7917380a93 in postEventSourceDispatch (s=0x24fe780) at kernel/qeventdispatcher_glib.cpp:276
#33 0x00007f791139e197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f791139e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f791139e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f791738009f in QEventDispatcherGlib::processEvents (this=this@entry=0x2507640, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#37 0x00007f790b1859a1 in QPAEventDispatcherGlib::processEvents (this=0x2507640, flags=...) at qeventdispatcher_glib.cpp:69
#38 0x00007f79173275ba in QEventLoop::exec (this=this@entry=0x7fffc37e1570, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#39 0x00007f79173306c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#40 0x00007f791816ef8c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1762
#41 0x00007f79189832f5 in QApplication::exec () at kernel/qapplication.cpp:2901
#42 0x00000000004131ff in main (argc=3, argv=<optimized out>) at /workspace/build/discover/main.cpp:156

Possible duplicates by query: bug 398564, bug 398562, bug 398549, bug 398488, bug 398464.

Reported using DrKonqi