Bug 357607

Summary: Crash at startup
Product: [Frameworks and Libraries] frameworks-baloo Reporter: pmanousis <pmanousis>
Component: EngineAssignee: Pinak Ahuja <pinak.ahuja>
Status: RESOLVED DUPLICATE    
Severity: crash CC: aspotashev, bshah, pinak.ahuja, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description pmanousis 2016-01-06 08:56:25 UTC 
Application: plasmashell (5.4.3)

Qt Version: 5.5.1
Operating System: Linux 4.1.13-5-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I just logged in and it crashed!  I am not sure if this is an error that is because of the fglrx driver or not.  Another thing I noticed is that kwin also occasionaly crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fab0cfb57c0 (LWP 3358))]

Thread 20 (Thread 0x7faaf7f07700 (LWP 3363)):
#0  0x00007fab064d7c1d in poll () at /lib64/libc.so.6
#1  0x00007fab0b415422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fab0b41700f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007faafa68a3c9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7faaf5ed5700 (LWP 3384)):
#0  0x00007fab064d3ced in read () at /lib64/libc.so.6
#1  0x00007fab02bf9b60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fab02bb8999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fab02bb8df8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fab02bb8f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fab06e01d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fab06da8d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fab06bca61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fab09ed5df8 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7faae2c69700 (LWP 3396)):
#0  0x00007fab064b1ded in nanosleep () at /lib64/libc.so.6
#1  0x00007fab064d99d4 in usleep () at /lib64/libc.so.6
#2  0x00007faae762a9d0 in  () at /usr/lib64/dri/fglrx_dri.so
#3  0x00007faae6cf9512 in  () at /usr/lib64/dri/fglrx_dri.so
#4  0x00007faae6cf9565 in  () at /usr/lib64/dri/fglrx_dri.so
#5  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7faae1386700 (LWP 3431)):
#0  0x00007fab064d3ced in read () at /lib64/libc.so.6
#1  0x00007fab02bf9b60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fab02bb8999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fab02bb8df8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fab02bb8f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fab06e01d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fab06da8d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fab06bca61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fab09ed5df8 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7faadb9b7700 (LWP 3432)):
#0  0x00007fab064d7c1d in poll () at /lib64/libc.so.6
#1  0x00007fab02bb8e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fab02bb8f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fab06e01d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fab06da8d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab06bca61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007fab09ed5df8 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7faada0c8700 (LWP 3434)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab0c69a86b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007fab0c69a899 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7faa4e557700 (LWP 3439)):
#0  0x00007fab02bfad14 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fab02bb8538 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fab02bb8d80 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fab02bb8f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fab06e01d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab06da8d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fab06bca61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007fab0aa6d282 in  () at /usr/lib64/libQt5Quick.so.5
#8  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7faa4d824700 (LWP 3445)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fab0aae025b in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007fab0aae06f3 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7faa3debf700 (LWP 3510)):
#0  0x00007fab064d7c1d in poll () at /lib64/libc.so.6
#1  0x00007fab02bb8e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fab02bb8f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fab06e01d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007fab06da8d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab06bca61a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007faa3f50ccf7 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7faa3d6be700 (LWP 3511)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fab0aae025b in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007fab0aae06f3 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7faa351cf700 (LWP 3529)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fab0aae025b in  () at /usr/lib64/libQt5Quick.so.5
#3  0x00007fab0aae06f3 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7faa2a99b700 (LWP 3533)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7faa2a19a700 (LWP 3534)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7faa29999700 (LWP 3535)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7faa29198700 (LWP 3536)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7faa28997700 (LWP 3537)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7faa13fff700 (LWP 3538)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7faa0b7fe700 (LWP 3539)):
[KCrash Handler]
#6  0x00007fab0648ae1e in __memcpy_sse2_unaligned () at /lib64/libc.so.6
#7  0x00007fab06bd255c in QByteArray::QByteArray(char const*, int) () at /usr/lib64/libQt5Core.so.5
#8  0x00007faa2ade3a07 in  () at /usr/lib64/libKF5BalooEngine.so.5
#9  0x00007faa2ade3ac1 in Baloo::PostingDB::iter(QByteArray const&) () at /usr/lib64/libKF5BalooEngine.so.5
#10 0x00007faa2adecc5d in Baloo::Transaction::postingIterator(Baloo::EngineQuery const&) const () at /usr/lib64/libKF5BalooEngine.so.5
#11 0x00007faa342afdab in  () at /usr/lib64/libKF5Baloo.so.5
#12 0x00007faa342aff12 in  () at /usr/lib64/libKF5Baloo.so.5
#13 0x00007faa342b0e89 in  () at /usr/lib64/libKF5Baloo.so.5
#14 0x00007faa3429fb7b in Baloo::Query::exec() () at /usr/lib64/libKF5Baloo.so.5
#15 0x00007faa344c1216 in  () at /usr/lib64/qt5/plugins/krunner_baloosearchrunner.so
#16 0x00007faa344c1bc3 in  () at /usr/lib64/qt5/plugins/krunner_baloosearchrunner.so
#17 0x00007faa4c59b106 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () at /usr/lib64/libKF5Runner.so.5
#18 0x00007faa46deeba0 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib64/libKF5ThreadWeaver.so.5
#19 0x00007faa46ded930 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () at /usr/lib64/libKF5ThreadWeaver.so.5
#20 0x00007faa46decf3a in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#21 0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#22 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#23 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7faa137fe700 (LWP 3540)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab06bd034b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007faa46deb65f in ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*, bool, bool, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#3  0x00007faa46def43a in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#4  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#5  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#6  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#7  0x00007faa46def481 in  () at /usr/lib64/libKF5ThreadWeaver.so.5
#8  0x00007faa46de96cb in ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at /usr/lib64/libKF5ThreadWeaver.so.5
#9  0x00007faa46ded005 in ThreadWeaver::Thread::run() () at /usr/lib64/libKF5ThreadWeaver.so.5
#10 0x00007fab06bcf32f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007fab05ce10a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007fab064e004d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fab0cfb57c0 (LWP 3358)):
#0  0x00007fab05ce505f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fab0b415669 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fab0b416d5f in  () at /usr/lib64/libxcb.so.1
#3  0x00007fab0b416e72 in xcb_wait_for_reply () at /usr/lib64/libxcb.so.1
#4  0x00007fab099e588a in  () at /usr/lib64/libKF5WindowSystem.so.5
#5  0x00007fab099debd5 in NETRootInfo::update(QFlags<NET::Property>, QFlags<NET::Property2>) () at /usr/lib64/libKF5WindowSystem.so.5
#6  0x00007fab099dfb41 in NETRootInfo::NETRootInfo(xcb_connection_t*, QFlags<NET::Property>, QFlags<NET::Property2>, int, bool) () at /usr/lib64/libKF5WindowSystem.so.5
#7  0x00007faa466f17b7 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/pager/libpagerplugin.so
#8  0x00007fab06ddacc6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#9  0x00007fab06de7f22 in QTimer::timerEvent(QTimerEvent*) () at /usr/lib64/libQt5Core.so.5
#10 0x00007fab06ddb8bc in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#11 0x00007fab08123e7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007fab08128cc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#13 0x00007fab06daae95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#14 0x00007fab06e0177d in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5
#15 0x00007fab06e01aa1 in  () at /usr/lib64/libQt5Core.so.5
#16 0x00007fab02bb8c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#17 0x00007fab02bb8ed8 in  () at /usr/lib64/libglib-2.0.so.0
#18 0x00007fab02bb8f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#19 0x00007fab06e01d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#20 0x00007fab06da8d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#21 0x00007fab06db08f6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#22 0x000000000043467b in main ()

Reported using DrKonqi
Comment 1 pmanousis 2016-01-06 10:53:26 UTC 
I thought that fglrx had to do sth with the bug and I reinstalled it. Apparently I was wrong.

Since I have set to KDE to remember my session, the next thing I did was to quit from Kontact application before logging off and on.  This made it work properly!

I suspect that since Kontact wants to use KWallet, and KWallet starts with a "pop-up" dialog to ask for the code, it makes the plasma collapse.  When I was not running Kontact and there was no KWallet, everything went smooth as expected.
Comment 2 Dominik Haumann 2016-09-11 14:56:30 UTC 

*** This bug has been marked as a duplicate of bug 357595 ***