https://bugs.kde.org/show_bug.cgi?id=376162
Bug ID: 376162
Summary: Discover crashes while searching
Product: Discover
Version: 5.9.0
Platform: Neon Packages
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: discover
Assignee: aleix...@kde.org
Reporter: samfiragabr...@gmail.com
Target Milestone: ---
Application: plasma-discover (5.9.0)
Qt Version: 5.7.1
Frameworks Version: 5.30.0
Operating System: Linux 4.4.0-62-generic x86_64
Distribution: KDE neon User Edition 5.9
-- Information about the crash:
- What I was doing when the application crashed:
Started the application, and simply tried to search for a package
The crash can be reproduced every time.
-- 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 0x7f6bacf148c0 (LWP 2603))]
Thread 11 (Thread 0x7f6b2dffb700 (LWP 2659)):
#0 0x00007f6ba9241b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f6ba461e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f6ba9e6a75b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba9c44f64 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007f6ba66d66ba in start_thread (arg=0x7f6b2dffb700) at
pthread_create.c:333
#8 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 10 (Thread 0x7f6b4cff9700 (LWP 2625)):
#0 pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1 0x00007f6ba9c4a936 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2 0x00007f6ba9c461ea in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba66d66ba in start_thread (arg=0x7f6b4cff9700) at
pthread_create.c:333
#5 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 9 (Thread 0x7f6b72bf3700 (LWP 2614)):
#0 pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1 0x00007f6ba9c4a936 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2 0x00007f6ba9c461ea in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba66d66ba in start_thread (arg=0x7f6b72bf3700) at
pthread_create.c:333
#5 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 8 (Thread 0x7f6b735fb700 (LWP 2613)):
#0 0x00007f6ba4662a94 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1 0x00007f6ba461d910 in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f6ba461e2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f6ba9e6a75b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f6ba9c44f64 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f6ba66d66ba in start_thread (arg=0x7f6b735fb700) at
pthread_create.c:333
#9 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 7 (Thread 0x7f6b73fff700 (LWP 2612)):
#0 pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1 0x00007f6ba9c4a936 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2 0x00007f6ba9c461ea in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba66d66ba in start_thread (arg=0x7f6b73fff700) at
pthread_create.c:333
#5 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 6 (Thread 0x7f6b799b0700 (LWP 2610)):
#0 0x00007f6ba9241b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f6ba461e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f6ba9e6a75b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba9c44f64 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007f6ba66d66ba in start_thread (arg=0x7f6b799b0700) at
pthread_create.c:333
#8 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 5 (Thread 0x7f6b908cc700 (LWP 2608)):
#0 0x00007f6ba9241b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f6ba461e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f6ba9e6a75b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba9c44f64 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f6bac58bfc6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f6ba66d66ba in start_thread (arg=0x7f6b908cc700) at
pthread_create.c:333
#9 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 4 (Thread 0x7f6b91de9700 (LWP 2606)):
#0 0x00007f6ba9241b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f6ba461e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f6ba9e6a75b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba9c44f64 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f6baa5bdbf5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f6ba66d66ba in start_thread (arg=0x7f6b91de9700) at
pthread_create.c:333
#9 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 3 (Thread 0x7f6b92ffa700 (LWP 2605)):
#0 0x00007f6ba9241b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f6ba461e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f6ba9e6a75b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba9c44f64 in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f6bad059735 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f6ba66d66ba in start_thread (arg=0x7f6b92ffa700) at
pthread_create.c:333
#9 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 2 (Thread 0x7f6b9b79a700 (LWP 2604)):
#0 0x00007f6ba9241b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f6ba41b3c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2 0x00007f6ba41b58d7 in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007f6b9dcf2d79 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4 0x00007f6ba9c49b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f6ba66d66ba in start_thread (arg=0x7f6b9b79a700) at
pthread_create.c:333
#6 0x00007f6ba924d82d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 1 (Thread 0x7f6bacf148c0 (LWP 2603)):
[KCrash Handler]
#6 0x00007f6baa52b432 in
QQmlData::isSignalConnected(QAbstractDeclarativeData*, QObject const*, int) ()
from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7 0x00007f6ba9e4187a in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f6bac2663d2 in ResultsStream::resourcesFound (this=<optimized out>,
_t1=...) at
/workspace/build/obj-x86_64-linux-gnu/libdiscover/moc_AbstractResourcesBackend.cpp:140
#9 0x00007f6b701c1eec in PackageKitBackend::<lambda()>::operator()
(__closure=0x29b29d0) at
/workspace/build/libdiscover/backends/PackageKitBackend/PackageKitBackend.cpp:417
#10 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void,
PackageKitBackend::search(const AbstractResourcesBackend::Filters&)::<lambda()>
>::call (arg=<optimized out>, f=...) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:501
#11 QtPrivate::Functor<PackageKitBackend::search(const
AbstractResourcesBackend::Filters&)::<lambda()>, 0>::call<QtPrivate::List<>,
void> (arg=<optimized out>, f=...) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:558
#12 QtPrivate::QFunctorSlotObject<PackageKitBackend::search(const
AbstractResourcesBackend::Filters&)::<lambda()>, 0, QtPrivate::List<>,
void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *)
(which=<optimized out>, this_=0x29b29c0, r=<optimized out>, a=<optimized out>,
ret=<optimized out>) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qobject_impl.h:198
#13 0x00007f6ba9e421f6 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f6b4c5d15ff in
PackageKit::Transaction::finished(PackageKit::Transaction::Exit, unsigned int)
() from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#15 0x00007f6b4c5d689d in PackageKit::TransactionPrivate::finished(unsigned
int, unsigned int) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#16 0x00007f6b4c5d6b70 in PackageKit::TransactionPrivate::daemonQuit() () from
/usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#17 0x00007f6b4c5d3da9 in ?? () from
/usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#18 0x00007f6ba9e41e89 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f6b4c5cf85e in
PackageKit::DaemonPrivate::serviceOwnerChanged(QString const&, QString const&,
QString const&) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#20 0x00007f6b4c5c99d8 in ?? () from
/usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#21 0x00007f6ba9e41e89 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f6bad0b20df in QDBusServiceWatcher::serviceOwnerChanged(QString
const&, QString const&, QString const&) () from
/usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#23 0x00007f6bad0b218f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#24 0x00007f6bad0b270f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#25 0x00007f6bad0b2ae0 in QDBusServiceWatcher::qt_metacall(QMetaObject::Call,
int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#26 0x00007f6bad065923 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#27 0x00007f6ba9e42d99 in QObject::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f6baad7becc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f6baad838c6 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f6ba9e170c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007f6ba9e1978b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f6ba9e6a333 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f6ba461e197 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f6ba461e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f6ba461e49c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f6ba9e6a73f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f6ba9e150ba in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f6ba9e1d6cc in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x000000000040d781 in main (argc=1, argv=<optimized out>) at
/workspace/build/discover/main.cpp:141
Reported using DrKonqi
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