Bug 377659

Summary: Discover crash every time just searching anything
Product: [Applications] Discover Reporter: Unknown <null>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED DUPLICATE    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.9.3   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Unknown 2017-03-15 18:21:00 UTC 
Application: plasma-discover (5.9.3)

Qt Version: 5.7.1
Frameworks Version: 5.32.0
Operating System: Linux 4.8.0-42-generic x86_64
Distribution: KDE neon User Edition 5.9

-- Information about the crash:
- What I was doing when the application crashed:
I have just searched for some software, nothing else
- Custom settings of the application:
there are no custom settings, clean install of kde neon .9.3 with latest updates

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 0x7f46065448c0 (LWP 3995))]

Thread 12 (Thread 0x7f459e7fc700 (LWP 4095)):
#0  0x00007f4602870b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f45fdc4738c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f45ffd026ba in start_thread (arg=0x7f459e7fc700) at pthread_create.c:333
#8  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f45bd7fa700 (LWP 4094)):
#0  0x00007f4602870b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f45fdc4738c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f45ffd026ba in start_thread (arg=0x7f45bd7fa700) at pthread_create.c:333
#8  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f459effd700 (LWP 4093)):
#0  0x00007f45fdc46910 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f45fdc472bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f45ffd026ba in start_thread (arg=0x7f459effd700) at pthread_create.c:333
#8  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f45be7fc700 (LWP 4011)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f4603279936 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f46032751ea in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f45ffd026ba in start_thread (arg=0x7f45be7fc700) at pthread_create.c:333
#5  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f45beffd700 (LWP 4010)):
#0  0x00007f45fdc8ba94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f45fdc46db9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45fdc47330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f45ffd026ba in start_thread (arg=0x7f45beffd700) at pthread_create.c:333
#9  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f45d6579700 (LWP 4005)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f4603279936 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f46032751ea in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f45ffd026ba in start_thread (arg=0x7f45d6579700) at pthread_create.c:333
#5  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f45d7cba700 (LWP 4003)):
#0  0x00007f45fdc8ba94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f45fdc46910 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45fdc472bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f45ffd026ba in start_thread (arg=0x7f45d7cba700) at pthread_create.c:333
#9  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f45e9e87700 (LWP 4001)):
#0  0x00007f460326ff69 in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f4603498eaf in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f45fdc4691d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45fdc472bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4605bbafc6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f45ffd026ba in start_thread (arg=0x7f45e9e87700) at pthread_create.c:333
#11 0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f45eb46b700 (LWP 3999)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007f4602870b69 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f45fdc4738c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4603beabf5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f45ffd026ba in start_thread (arg=0x7f45eb46b700) at pthread_create.c:333
#10 0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f45ec67c700 (LWP 3998)):
#0  0x00007f45fdc8ba79 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f45fdc46dcc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f45fdc47330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f460349975b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4603273f64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4606689735 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f45ffd026ba in start_thread (arg=0x7f45ec67c700) at pthread_create.c:333
#10 0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f45f4dc0700 (LWP 3997)):
#0  0x00007f4602870b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f45fd7dcc62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f45fd7de8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f45f7318d79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f4603278b48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f45ffd026ba in start_thread (arg=0x7f45f4dc0700) at pthread_create.c:333
#6  0x00007f460287c82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f46065448c0 (LWP 3995)):
[KCrash Handler]
#6  0x00007f4603b5acf5 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f46034715d6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4605895482 in ResultsStream::resourcesFound(QVector<AbstractResource*> const&) () from /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#9  0x00007f45d452df4c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#10 0x00007f46034711f6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f45d42f35ff in PackageKit::Transaction::finished(PackageKit::Transaction::Exit, unsigned int) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#12 0x00007f45d42f889d in PackageKit::TransactionPrivate::finished(unsigned int, unsigned int) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#13 0x00007f45d42f8b70 in PackageKit::TransactionPrivate::daemonQuit() () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#14 0x00007f45d42f5da9 in ?? () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#15 0x00007f4603470e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f45d42f185e in PackageKit::DaemonPrivate::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#17 0x00007f45d42eb9d8 in ?? () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#18 0x00007f4603470e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f46066e20df in QDBusServiceWatcher::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#20 0x00007f46066e218f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#21 0x00007f46066e270f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#22 0x00007f46066e2ae0 in QDBusServiceWatcher::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#23 0x00007f4606695923 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#24 0x00007f4603471d99 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f46043a8ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f46043b08c6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f46034460c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f460344878b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f4603499333 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f45fdc47197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f45fdc473f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f45fdc4749c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f460349973f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f46034440ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f460344c6cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x000000000040d601 in ?? ()
#37 0x00007f4602796830 in __libc_start_main (main=0x40cee0, argc=1, argv=0x7ffff058d558, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff058d548) at ../csu/libc-start.c:291
#38 0x000000000040d859 in _start ()

Reported using DrKonqi
Comment 1 Aleix Pol 2017-03-17 17:32:29 UTC 

*** This bug has been marked as a duplicate of bug 377654 ***