Application: plasma-discover (5.12.6)

Qt Version: 5.9.5
Frameworks Version: 5.47.0
Operating System: Linux 4.15.0-30-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed: All I did was open discover via ALT+Space and started to type.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7feea20bc800 (LWP 19969))]

Thread 13 (Thread 0x7fee23fff700 (LWP 20656)):
#0  0x00007fee97ebacd9 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fee97e749a3 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7536b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fee99d9a6db in start_thread (arg=0x7fee23fff700) at pthread_create.c:463
#9  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fee237fe700 (LWP 20655)):
#0  0x00007fee9d6790b4 in __GI___libc_read (fd=42, buf=0x7fee237fdb90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fee97eb9960 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e74f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee97e753e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fee99d9a6db in start_thread (arg=0x7fee237fe700) at pthread_create.c:463
#10 0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fee22ffd700 (LWP 20280)):
#0  0x00007fee9d67dbf9 in __GI___poll (fds=0x7fee14028790, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fee97e75439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee99d9a6db in start_thread (arg=0x7fee22ffd700) at pthread_create.c:463
#8  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fee4ed7d700 (LWP 19981)):
#0  0x00007fee97e74d6e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fee97e753e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee99d9a6db in start_thread (arg=0x7fee4ed7d700) at pthread_create.c:463
#8  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fee617fe700 (LWP 19978)):
#0  0x00007fee9d699757 in __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:94
#1  0x00007fee9d67dc0d in __GI___poll (fds=0x555fd7464cc0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fee97e75439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee97e757d2 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee6cc55e76 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007fee97e9ce05 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fee99d9a6db in start_thread (arg=0x7fee617fe700) at pthread_create.c:463
#7  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fee61fff700 (LWP 19977)):
#0  0x00007fee97ebacf4 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fee97e7535e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee97e75591 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee97e9ce05 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fee99d9a6db in start_thread (arg=0x7fee61fff700) at pthread_create.c:463
#6  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fee688df700 (LWP 19975)):
#0  0x00007fee9d6996ff in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007fee9d67dbe6 in __GI___poll (fds=0x7fee5c014af0, nfds=1, timeout=94381) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fee97e75439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fee99d9a6db in start_thread (arg=0x7fee688df700) at pthread_create.c:463
#9  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fee69e60700 (LWP 19974)):
#0  0x00007fee9d67dbf9 in __GI___poll (fds=0x7fee64004e10, nfds=1, timeout=10376) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fee97e75439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee99d9a6db in start_thread (arg=0x7fee69e60700) at pthread_create.c:463
#8  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fee7639e700 (LWP 19973)):
#0  0x00007fee9d67dbf9 in __GI___poll (fds=0x7fee70004db0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fee97e75439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007feea11712a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fee99d9a6db in start_thread (arg=0x7fee7639e700) at pthread_create.c:463
#9  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fee85543700 (LWP 19972)):
#0  0x00007fee9d67dbf9 in __GI___poll (fds=0x7fee78004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fee97e75439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9e9a56f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fee99d9a6db in start_thread (arg=0x7fee85543700) at pthread_create.c:463
#9  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fee86754700 (LWP 19971)):
#0  0x00007fee9d6790b4 in __GI___libc_read (fd=7, buf=0x7fee86753b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fee97eb9960 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fee97e74f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fee97e753e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fee9dfcb90b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fee9dd8f22a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fee9fc87d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fee99d9a6db in start_thread (arg=0x7fee86754700) at pthread_create.c:463
#11 0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fee8fba6700 (LWP 19970)):
#0  0x00007fee9d67dbf9 in __GI___poll (fds=0x7fee8fba5ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fee97c0c747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fee97c0e36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fee929532a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fee9dd9416d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fee99d9a6db in start_thread (arg=0x7fee8fba6700) at pthread_create.c:463
#6  0x00007fee9d68a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7feea20bc800 (LWP 19969)):
[KCrash Handler]
#6  0x00007feea0e1fafa in OdrsReviewsBackend::parseReviews(QJsonDocument const&, AbstractResource*) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#7  0x00007feea0e23848 in OdrsReviewsBackend::reviewsFetched() () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#8  0x00007fee9dfa16cf in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fee9b56f6df in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#10 0x00007fee9b5ffcc9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007fee9dfa2122 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fee9f57f82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007fee9f5870f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fee9df729a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fee9df7511d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fee9dfcc2c3 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fee97e75287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fee97e754c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fee97e7554c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fee9dfcb8ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fee9df709ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fee9df79a84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x0000555fd4dae0e8 in  ()
#24 0x00007fee9d58ab97 in __libc_start_main (main=0x555fd4dad810, argc=1, argv=0x7fff5477e788, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5477e778) at ../csu/libc-start.c:310
#25 0x0000555fd4dae36a in _start ()

Reported using DrKonqi