https://bugs.kde.org/show_bug.cgi?id=395516

            Bug ID: 395516
           Summary: Software center crashing after being unresponse on
                    arch
           Product: Discover
           Version: 5.13.0
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: discover
          Assignee: aleix...@kde.org
          Reporter: hsszy...@gmail.com
  Target Milestone: ---

Application: plasma-discover (5.13.0)

Qt Version: 5.11.0
Frameworks Version: 5.47.0
Operating System: Linux 4.16.13-2-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
Started the kde software center.

-Using arch with i3 as an alternative wm. Pulling kde-applications and plasma
packages.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f62de2a1800 (LWP 2625))]

Thread 9 (Thread 0x7f628ffff700 (LWP 2637)):
#0  0x00007f62d981cea9 in poll () from /usr/lib/libc.so.6
#1  0x00007f62d3ccf523 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f62da138e64 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f62d9f2dac9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#7  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#8  0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f62aa8b1700 (LWP 2633)):
#0  0x00007f62d9834878 in __libc_enable_asynccancel () from /usr/lib/libc.so.6
#1  0x00007f62d981ce96 in poll () from /usr/lib/libc.so.6
#2  0x00007f62d3ccf523 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#4  0x00007f62da138e64 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#5  0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#6  0x00007f62d9f2dac9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f62ab73c700 (LWP 2632)):
#0  0x00007f62d9818934 in read () from /usr/lib/libc.so.6
#1  0x00007f62d3d14ed1 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f62d3cceff8 in g_main_context_check () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f62d3ccf4c6 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#5  0x00007f62da138e64 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#6  0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#7  0x00007f62d9f2dac9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f62b1294700 (LWP 2631)):
#0  0x00007f62d981cea9 in poll () from /usr/lib/libc.so.6
#1  0x00007f62d3ccf523 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f62da138e64 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f62d9f2dac9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f62dd32b27b in ?? () from /usr/lib/libQt5Quick.so.5
#7  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f62b26b0700 (LWP 2630)):
#0  0x00007f62d5f0affc in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#1  0x00007f62b348c0a4 in ?? () from /usr/lib/dri/i965_dri.so
#2  0x00007f62b348bd98 in ?? () from /usr/lib/dri/i965_dri.so
#3  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f62c14de700 (LWP 2629)):
#0  0x00007f62d981cea9 in poll () from /usr/lib/libc.so.6
#1  0x00007f62d3ccf523 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#3  0x00007f62da138e64 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#4  0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#5  0x00007f62d9f2dac9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f62daabc559 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f62c26ef700 (LWP 2628)):
#0  0x00007f62d3d162f4 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f62d3cce3ac in g_main_context_acquire () from
/usr/lib/libglib-2.0.so.0
#2  0x00007f62d3ccf3d7 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#4  0x00007f62da138e64 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#5  0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#6  0x00007f62d9f2dac9 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f62dbe0b976 in ?? () from /usr/lib/libQt5DBus.so.5
#8  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f62cb7ea700 (LWP 2627)):
#0  0x00007f62d981cea9 in poll () from /usr/lib/libc.so.6
#1  0x00007f62d3a66180 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f62d3a67e4b in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007f62ce598f1a in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f62d9f37b95 in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007f62d5f05075 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007f62d982753f in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f62de2a1800 (LWP 2625)):
[KCrash Handler]
#6  0x0000000080000009 in ?? ()
#7  0x00007f62da113ac2 in QObjectPrivate::connectImpl(QObject const*, int,
QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int
const*, QMetaObject const*) () from /usr/lib/libQt5Core.so.5
#8  0x00007f62da113cbc in QObject::connectImpl(QObject const*, void**, QObject
const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*,
QMetaObject const*) () from /usr/lib/libQt5Core.so.5
#9  0x00007f62abdeaa62 in ?? () from
/usr/lib/qt/plugins/discover/kns-backend.so
#10 0x00007f62da1102e2 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#11 0x00007f62db6ed984 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/libQt5Widgets.so.5
#12 0x00007f62db6f525b in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/libQt5Widgets.so.5
#13 0x00007f62da0e5bc9 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#14 0x00007f62da0e8c5c in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#15 0x00007f62da139864 in ?? () from /usr/lib/libQt5Core.so.5
#16 0x00007f62d3ccf368 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#17 0x00007f62d3ccf5b1 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0x00007f62d3ccf63e in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#19 0x00007f62da138e49 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#20 0x00007f62ce62db32 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#21 0x00007f62da0e485c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#22 0x00007f62da0ecb56 in QCoreApplication::exec() () from
/usr/lib/libQt5Core.so.5
#23 0x00005588e8c77d46 in ?? ()
#24 0x00007f62d975206b in __libc_start_main () from /usr/lib/libc.so.6
#25 0x00005588e8c7830a in _start ()

Possible duplicates by query: bug 395238, bug 390381, bug 386999, bug 386319,
bug 386137.

Reported using DrKonqi

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