Bug 383246

Summary: Software Center crashes when looking up "screenshot"
Product: [Applications] Discover Reporter: Vinlark <vinlark>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED DUPLICATE    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: 5.10.4   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:

Description Vinlark 2017-08-07 21:50:22 UTC 
Application: plasma-discover (5.10.4)

Qt Version: 5.9.1
Frameworks Version: 5.36.0
Operating System: Linux 4.12.3-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I was looking for a screenshot tool on KDE Plasma and everytime I typed this in, it would crash. I am on Arch Linux, I installed this through pacman (Arch's official pkg manager)

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 0x7ffa5119de40 (LWP 3089))]

Thread 11 (Thread 0x7ff9fb094700 (LWP 3104)):
#0  0x00007ffa46e9aa84 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007ffa46e55609 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffa46e55bb0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7ffa154d2700 (LWP 3101)):
#0  0x00007ffa4c85ee9d in poll () at /usr/lib/libc.so.6
#1  0x00007ffa46e55c09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7ffa17fff700 (LWP 3098)):
#0  0x00007ffa4cf4ea4f in QMutex::unlock() () at /usr/lib/libQt5Core.so.5
#1  0x00007ffa4d194fa2 in  () at /usr/lib/libQt5Core.so.5
#2  0x00007ffa46e55148 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa46e55b3b in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7ffa1d092700 (LWP 3097)):
#0  0x00007ffa4c85ee9d in poll () at /usr/lib/libc.so.6
#1  0x00007ffa46e55c09 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7ffa1f502700 (LWP 3096)):
#0  0x00007ffa4c85abad in read () at /usr/lib/libc.so.6
#1  0x00007ffa46e99730 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffa46e556eb in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa46e55bb0 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007ffa504388d6 in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#10 0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7ffa21492700 (LWP 3095)):
#0  0x00007ffa490581ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffa26cf050c in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#2  0x00007ffa26cf0218 in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#3  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7ffa224e2700 (LWP 3094)):
#0  0x00007ffa490581ad in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007ffa26cf050c in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#2  0x00007ffa26cf0218 in  () at /usr/lib/xorg/modules/dri/r600_dri.so
#3  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7ffa2ffff700 (LWP 3093)):
#0  0x00007ffa46e52b37 in  () at /usr/lib/libglib-2.0.so.0
#1  0x00007ffa46e55521 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffa46e55bb0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa4db1d1d5 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7ffa3574a700 (LWP 3092)):
#0  0x00007ffa46e9aa69 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007ffa46e5561c in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffa46e55bb0 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffa4d195084 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4cf5240e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa4f2df396 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#9  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7ffa3e542700 (LWP 3091)):
#0  0x00007ffa4c85ee9d in poll () at /usr/lib/libc.so.6
#1  0x00007ffa46be78e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007ffa46be9679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007ffa4111872a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007ffa4cf5715b in  () at /usr/lib/libQt5Core.so.5
#5  0x00007ffa49052049 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffa4c868f0f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffa5119de40 (LWP 3089)):
[KCrash Handler]
#5  0x00007ffa4d16c6c3 in QObjectPrivate::addConnection(int, QObjectPrivate::Connection*) () at /usr/lib/libQt5Core.so.5
#6  0x00007ffa4d16eaf6 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#7  0x00007ffa4d16ee2c in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#8  0x00007ffa1d74c629 in  () at /usr/lib/qt/plugins/discover/kns-backend.so
#9  0x00007ffa4d16b1d2 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#10 0x00007ffa4e706e4c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007ffa4e70e926 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007ffa4d13abd0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007ffa4d13d426 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#14 0x00007ffa4d195a74 in  () at /usr/lib/libQt5Core.so.5
#15 0x00007ffa46e55a57 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#16 0x00007ffa46e55c88 in  () at /usr/lib/libglib-2.0.so.0
#17 0x00007ffa46e55d1c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#18 0x00007ffa4d195061 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#19 0x00007ffa4d138ffb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#20 0x00007ffa4d142048 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#21 0x00000090a5ab5ecf in  ()
#22 0x00007ffa4c79b4ca in __libc_start_main () at /usr/lib/libc.so.6
#23 0x00000090a5ab61fa in _start ()

Possible duplicates by query: bug 382509.

Reported using DrKonqi
Comment 1 Aleix Pol 2017-09-04 14:48:55 UTC 

*** This bug has been marked as a duplicate of bug 375913 ***
Comment 2 Christoph Feck 2017-10-04 12:51:55 UTC 

*** This bug has been marked as a duplicate of bug 382509 ***