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:
After installing latest KDE Neon Dev Image, I issued an update from the toolbar Icon. The crash occured shortly after the update was requested.

-- 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 0x7fcd19b4c8c0 (LWP 2076))]

Thread 11 (Thread 0x7fccd6f33700 (LWP 2088)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fcd14d812bd in _int_free (av=0x7fcd150c5b20 <main_arena>, p=0x39bc6f0, have_lock=0) at malloc.c:3962
#2  0x00007fcd14d8553c in __GI___libc_free (mem=<optimized out>) at malloc.c:2968
#3  0x00007fcd0fa56f06 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcd0fa57099 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcd1189f439 in __nptl_deallocate_tsd () at pthread_create.c:175
#6  0x00007fcd118a0870 in __nptl_deallocate_tsd () at pthread_create.c:326
#7  start_thread (arg=0x7fccd6f33700) at pthread_create.c:346
#8  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fccd7734700 (LWP 2087)):
#0  __lll_lock_wait_private () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007fcd14d812bd in _int_free (av=0x7fcd150c5b20 <main_arena>, p=0x3c73610, have_lock=0) at malloc.c:3962
#2  0x00007fcd14d8553c in __GI___libc_free (mem=<optimized out>) at malloc.c:2968
#3  0x00007fcd159faee5 in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcd12cd3e69 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007fcd159f3ff0 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcd1702039c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007fcd17027ab0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007fcd159c6228 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fcd159c8e2e in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcd15a1da93 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fcd0fa3b197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fcd0fa3b3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007fcd0fa3b49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007fcd15a1d09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fcd159c45ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fcd157f95e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fcd15804727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fcd118a06ba in start_thread (arg=0x7fccd7734700) at pthread_create.c:333
#19 0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fccddb43700 (LWP 2085)):
#0  0x00007fcd15a1ce42 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fcd0fa3a91d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcd0fa3b2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcd0fa3b49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcd15a1d0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcd159c45ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcd157f95e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcd15804727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcd118a06ba in start_thread (arg=0x7fccddb43700) at pthread_create.c:333
#9  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fcce7bda700 (LWP 2084)):
#0  0x00007fcd14dfc74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fcd0fa3b38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcd0fa3b49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcd15a1d0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcd159c45ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcd157f95e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcd18c49f86 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fcd15804727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcd118a06ba in start_thread (arg=0x7fcce7bda700) at pthread_create.c:333
#9  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fcce8ff6700 (LWP 2083)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fccef8bc1d3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fccef8bc037 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fcd118a06ba in start_thread (arg=0x7fcce8ff6700) at pthread_create.c:333
#4  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fcce97f7700 (LWP 2082)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fccef8bc1d3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fccef8bc037 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fcd118a06ba in start_thread (arg=0x7fcce97f7700) at pthread_create.c:333
#4  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fcce9ff8700 (LWP 2081)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fccef8bc1d3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fccef8bc037 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fcd118a06ba in start_thread (arg=0x7fcce9ff8700) at pthread_create.c:333
#4  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fccea7f9700 (LWP 2080)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fccef8bc1d3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fccef8bc037 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fcd118a06ba in start_thread (arg=0x7fccea7f9700) at pthread_create.c:333
#4  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fccfe10d700 (LWP 2079)):
#0  0x00007fcd14dfc74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fcd0fa3b38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcd0fa3b49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcd15a1d0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcd159c45ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcd157f95e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcd16384195 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fcd15804727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcd118a06ba in start_thread (arg=0x7fccfe10d700) at pthread_create.c:333
#9  0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fccff31e700 (LWP 2078)):
#0  0x00007fcd157f5709 in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fcd15a1cfe1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fcd0fa3a91d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcd0fa3b2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcd0fa3b49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcd15a1d0bb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcd159c45ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcd157f95e4 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcd1773ff35 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fcd15804727 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcd118a06ba in start_thread (arg=0x7fccff31e700) at pthread_create.c:333
#11 0x00007fcd14e0841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fcd19b4c8c0 (LWP 2076)):
[KCrash Handler]
#6  0x00007fcd14d36428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007fcd14d3802a in __GI_abort () at abort.c:89
#8  0x00007fcd14d787ea in __libc_message (do_abort=2, fmt=fmt@entry=0x7fcd14e91ed8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007fcd14d7f9dc in malloc_printerr (ar_ptr=0x7fcd150c5b20 <main_arena>, ptr=0x3c64410, str=0x7fcd14e8ec75 "corrupted size vs. prev_size", action=<optimized out>) at malloc.c:5006
#10 malloc_consolidate (av=av@entry=0x7fcd150c5b20 <main_arena>) at malloc.c:4183
#11 0x00007fcd14d82cde in _int_malloc (av=av@entry=0x7fcd150c5b20 <main_arena>, bytes=bytes@entry=4096) at malloc.c:3450
#12 0x00007fcd14d85184 in __GI___libc_malloc (bytes=bytes@entry=4096) at malloc.c:2913
#13 0x00007fcd14d4689f in __realpath (name=0x3c69188 "/etc/xdg/plymouth.knsrc", resolved=0x0) at canonicalize.c:78
#14 0x00007fcd15964d7e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fcd158faba8 in QFileInfo::canonicalFilePath() const () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fcd179d26c0 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ConfigCore.so.5
#17 0x00007fcd179d3ef1 in KConfig::KConfig(QString const&, QFlags<KConfig::OpenFlag>, QStandardPaths::StandardLocation) () from /usr/lib/x86_64-linux-gnu/libKF5ConfigCore.so.5
#18 0x00007fccdcaa66bc in KNSBackend::KNSBackend(QObject*, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#19 0x00007fccdcaaa1ce in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#20 0x00007fcd188ea030 in DiscoverBackendsFactory::backendForFile(QString const&, QString const&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#21 0x00007fcd188ea6b2 in DiscoverBackendsFactory::backend(QString const&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#22 0x00007fcd188eab16 in DiscoverBackendsFactory::allBackends() const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#23 0x00007fcd188d4d07 in ResourcesModel::registerAllBackends() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#24 0x00007fcd188f9635 in ?? () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#25 0x00007fcd159f3fb9 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fcd1702039c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007fcd17027ab0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007fcd159c6228 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fcd159c8e2e in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007fcd15a1da93 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fcd0fa3b197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fcd0fa3b3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fcd0fa3b49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fcd15a1d09f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007fcd098229a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#36 0x00007fcd159c45ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007fcd159cd6c4 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00000000004131ff in ?? ()
#39 0x00007fcd14d21830 in __libc_start_main (main=0x4127c0, argc=3, argv=0x7ffdd86971e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdd86971d8) at ../csu/libc-start.c:291
#40 0x0000000000413399 in _start ()

Possible duplicates by query: bug 398639, bug 398607, bug 398597, bug 398564, bug 398562.

Reported using DrKonqi