Bug 398461

Summary: Discover crashes on launch
Product: [Applications] Discover Reporter: Eoghann Walker <blackisle>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED DUPLICATE    
Severity: crash CC: omergok
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.13.5   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Eoghann Walker 2018-09-10 14:52:14 UTC 
Application: plasma-discover (5.13.5)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.15.0-33-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
Freshly booted desktop. First application that was launched is Discover and results in the crash.

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 0x7f3214becc80 (LWP 2224))]

Thread 16 (Thread 0x7f31a7fff700 (LWP 2244)):
#0  0x00007f320a6d9faa in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f320a6da4c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3210aaaa9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3210a4edea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3210879b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3210884aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f320c8756db in start_thread (arg=0x7f31a7fff700) at pthread_create.c:463
#8  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f31b6b8c700 (LWP 2242)):
#0  0x00007f321016abf9 in __GI___poll (fds=0x7f31ac003600, nfds=1, timeout=9649) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f320a6da439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3210aaaa9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3210a4edea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3210879b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3210884aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f320c8756db in start_thread (arg=0x7f31b6b8c700) at pthread_create.c:463
#8  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f31b738d700 (LWP 2241)):
#0  0x00007f320a71fcf4 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f320a6d9930 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f320a6da36b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f320a6da7d2 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31bf685e76 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f320a701e05 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f320c8756db in start_thread (arg=0x7f31b738d700) at pthread_create.c:463
#7  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f31b7b8e700 (LWP 2240)):
#0  0x00007f321016abf9 in __GI___poll (fds=0x558f51aed210, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f320a6da439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f320a6da591 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f320a701e05 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f320c8756db in start_thread (arg=0x7f31b7b8e700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f31ddffb700 (LWP 2238)):
#0  0x00007ffe6569b979 in ?? ()
#1  0x00007ffe6569bc30 in clock_gettime ()
#2  0x00007f3210186ea6 in __GI___clock_gettime (clock_id=1, tp=0x7f31ddffaaa0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f3210aaa3a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3210aa8bd9 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3210aa91b5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3210aaa7fe in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f320a6d9998 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f320a6da36b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f3210aaaa9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f3210a4edea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f3210879b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3213c74906 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f3210884aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f320c8756db in start_thread (arg=0x7f31ddffb700) at pthread_create.c:463
#16 0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f31de7fc700 (LWP 2235)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f5130c108) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f5130c0b8, cond=0x558f5130c0e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f5130c0e0, mutex=0x558f5130c0b8) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31de7fc700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f31deffd700 (LWP 2234)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f5130c108) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f5130c0b8, cond=0x558f5130c0e0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f5130c0e0, mutex=0x558f5130c0b8) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31deffd700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f31df7fe700 (LWP 2233)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f5130bff8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f5130bfa8, cond=0x558f5130bfd0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f5130bfd0, mutex=0x558f5130bfa8) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31df7fe700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f31d7fff700 (LWP 2232)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f5130bff8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f5130bfa8, cond=0x558f5130bfd0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f5130bfd0, mutex=0x558f5130bfa8) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31d7fff700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f31dffff700 (LWP 2231)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f5130bff8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f5130bfa8, cond=0x558f5130bfd0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f5130bfd0, mutex=0x558f5130bfa8) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31dffff700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f31e4b53700 (LWP 2230)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f51105328) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f511052d8, cond=0x558f51105300) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f51105300, mutex=0x558f511052d8) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31e4b53700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f31e5b96700 (LWP 2229)):
#0  0x00007f320c87b9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558f5130b7d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x558f5130b780, cond=0x558f5130b7a8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x558f5130b7a8, mutex=0x558f5130b780) at pthread_cond_wait.c:655
#3  0x00007f31ea81b46b in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#4  0x00007f31ea81b197 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#5  0x00007f320c8756db in start_thread (arg=0x7f31e5b96700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f31f8d3a700 (LWP 2228)):
#0  0x00007f32101660b4 in __GI___libc_read (fd=9, buf=0x7f31f8d39b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f320a71e960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f320a6d9f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f320a6da3e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3210aaaa9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3210a4edea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3210879b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f321141e8b5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f3210884aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f320c8756db in start_thread (arg=0x7f31f8d3a700) at pthread_create.c:463
#11 0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f31f9f4b700 (LWP 2227)):
#0  0x00007f32101660b4 in __GI___libc_read (fd=7, buf=0x7f31f9f4ab60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f320a71e960 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f320a6d9f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f320a6da3e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3210aaaa9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3210a4edea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3210879b8a in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3212777e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f3210884aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f320c8756db in start_thread (arg=0x7f31f9f4b700) at pthread_create.c:463
#11 0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3202199700 (LWP 2226)):
#0  0x00007f321016abf9 in __GI___poll (fds=0x7f3202198ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f320a471747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f320a47336a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f320515a129 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f3210884aab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f320c8756db in start_thread (arg=0x7f3202199700) at pthread_create.c:463
#6  0x00007f321017788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3214becc80 (LWP 2224)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f3210096801 in __GI_abort () at abort.c:79
#8  0x00007f32100df897 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f321020cb9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#9  0x00007f32100e690a in malloc_printerr (str=str@entry=0x7f321020ad88 "free(): invalid pointer") at malloc.c:5350
#10 0x00007f32100ede1c in _int_free (have_lock=0, p=0x558f548ad6f0, av=0x7f3210441c40 <main_arena>) at malloc.c:4157
#11 __GI___libc_free (mem=0x558f548ad700) at malloc.c:3124
#12 0x00007f32109a21ff in QStandardPaths::locateAll(QStandardPaths::StandardLocation, QString const&, QFlags<QStandardPaths::LocateOption>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3212a09f3a in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ConfigCore.so.5
#14 0x00007f3212a0a429 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5ConfigCore.so.5
#15 0x00007f3212a0b018 in KConfig::reparseConfiguration() () from /usr/lib/x86_64-linux-gnu/libKF5ConfigCore.so.5
#16 0x00007f31b5879b4f in KNSCore::Engine::init(QString const&) () from /usr/lib/x86_64-linux-gnu/libKF5NewStuffCore.so.5
#17 0x00007f31b5adcd5c in KNSBackend::KNSBackend(QObject*, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#18 0x00007f31b5ae04bf in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/kns-backend.so
#19 0x00007f3213913637 in DiscoverBackendsFactory::backendForFile(QString const&, QString const&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#20 0x00007f3213913ccb in DiscoverBackendsFactory::backend(QString const&) const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#21 0x00007f321391412f in DiscoverBackendsFactory::allBackends() const () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#22 0x00007f32138fe9ca in ResourcesModel::registerAllBackends() () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#23 0x00007f3213923fe5 in ?? () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#24 0x00007f3210a80642 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f3212067e8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f321206f45f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f3210a50ab8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f3210a535fd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f3210aab453 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f320a6da287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f320a6da4c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f320a6da54c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f3210aaaa7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f32051e4ed1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#35 0x00007f3210a4edea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f3210a57fa0 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x0000558f50b0a558 in ?? ()
#38 0x00007f3210077b97 in __libc_start_main (main=0x558f50b09c80, argc=1, argv=0x7ffe6564ec68, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe6564ec58) at ../csu/libc-start.c:310
#39 0x0000558f50b0a7da in _start ()

Possible duplicates by query: bug 398398, bug 398373, bug 394640, bug 392350, bug 387393.

Reported using DrKonqi
Comment 1 omergok 2018-09-12 23:53:24 UTC 
Created attachment 114921 [details]
New crash information added by DrKonqi

plasma-discover (5.13.5) using Qt 5.11.1

- What I was doing when the application crashed:
Freshly booted desktop. First application that was launched is Discover and results in the crash.

-- Backtrace (Reduced):
#6  0x00007ffb6cc1c428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007ffb6cc1e02a in __GI_abort () at abort.c:89
[...]
#9  0x00007ffb6cc69651 in malloc_printerr (ar_ptr=0x7ffe00a88a30, ptr=0x252b880, str=0x7ffb6cd782e0 "malloc(): memory corruption (fast)", action=3) at malloc.c:5006
#10 _int_malloc (av=av@entry=0x7ffb6cfabb20 <main_arena>, bytes=bytes@entry=32) at malloc.c:3386
#11 0x00007ffb6cc6b184 in __GI___libc_malloc (bytes=32) at malloc.c:2913
Comment 2 Christoph Feck 2018-09-13 00:10:47 UTC 

*** This bug has been marked as a duplicate of bug 398412 ***