Bug 349147

Summary: Hp-systray is not recognise systray
Product: [Plasma] plasmashell Reporter: Rui Edward Gouveia <rui.gouveia7>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED INTENTIONAL    
Severity: crash CC: bshah, kde, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.3.1   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Rui Edward Gouveia 2015-06-14 12:25:24 UTC 
Application: plasmashell (5.3.1)

Qt Version: 5.4.2
Operating System: Linux 4.0.4-3-desktop x86_64
Distribution: "openSUSE 20150610 (Tumbleweed) (x86_64)"

-- Information about the crash:
- Unusual behavior I noticed:Hhp-systray dont recognise systray its just tell that system tray doesnt exist

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 0x7f787316e880 (LWP 2358))]

Thread 33 (Thread 0x7f785ca7f700 (LWP 2360)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f7871a3b322 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f7871a3cdef in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f785ee2bcc9 in  () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 32 (Thread 0x7f78564cf700 (LWP 2364)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f786906be54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 31 (Thread 0x7f78490e7700 (LWP 2368)):
#0  0x00007f786c1cc91f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f784f2e4733 in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f784f2e3fe7 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7f7843107700 (LWP 2379)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b8ec in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7f784101f700 (LWP 2387)):
#0  0x00007f786cbda59d in read () at /lib64/libc.so.6
#1  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7f7833f0f700 (LWP 2388)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f786906be54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7f7832e0e700 (LWP 2389)):
#0  0x00007f786cbda59d in read () at /lib64/libc.so.6
#1  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7f7831d0d700 (LWP 2390)):
#0  0x00007f78690adcd4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b490 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f7830c0c700 (LWP 2391)):
#0  0x00007f78690adcd4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906af10 in g_main_context_acquire () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bd15 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f78237ff700 (LWP 2392)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b377 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f78227fe700 (LWP 2393)):
#0  0x00007f786cbda59d in read () at /lib64/libc.so.6
#1  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f78217fd700 (LWP 2394)):
#0  0x00007f786906b4e1 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f780ffff700 (LWP 2395)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906bd45 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f780effe700 (LWP 2397)):
#0  0x00007f786d481704 in  () at /usr/lib64/libQt5Core.so.5
#1  0x00007f786906b8e1 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f780dd9f700 (LWP 2399)):
#0  0x00007f786c1cc91f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f787284347b in  () at /usr/lib64/libQt5Script.so.5
#2  0x00007f78728434a9 in  () at /usr/lib64/libQt5Script.so.5
#3  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f780d49e700 (LWP 2400)):
#0  0x00007f786cbf2e45 in __libc_enable_asynccancel () at /lib64/libc.so.6
#1  0x00007f786cbda592 in read () at /lib64/libc.so.6
#2  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#6  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#9  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#11 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f777dd5f700 (LWP 2402)):
#0  0x00007f786906b443 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f7777fff700 (LWP 2403)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b4a9 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f7870b6b042 in  () at /usr/lib64/libQt5Quick.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f7776da3700 (LWP 2407)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b8ec in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f776f12f700 (LWP 2449)):
#0  0x00007f786cbda59d in read () at /lib64/libc.so.6
#1  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f776e12e700 (LWP 2450)):
#0  0x00007f78690adcd4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b8d9 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f776d02d700 (LWP 2451)):
#0  0x00007f786cbda59d in read () at /lib64/libc.so.6
#1  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f775bf1f700 (LWP 2452)):
#0  0x00007f786d24844a in QMutex::lock() () at /usr/lib64/libQt5Core.so.5
#1  0x00007f786d481745 in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007f786906b49d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f775ae1e700 (LWP 2453)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906bf58 in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#3  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#5  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f7759d1d700 (LWP 2454)):
#0  0x00007f78690adcd4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906b528 in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f7758a0f700 (LWP 2455)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f786906be54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f774b7ff700 (LWP 2456)):
#0  0x00007f786d24851f in QMutex::unlock() () at /usr/lib64/libQt5Core.so.5
#1  0x00007f786d481755 in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007f786906b49d in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bd70 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f774a7fe700 (LWP 2457)):
#0  0x00007f786cbda59d in read () at /lib64/libc.so.6
#1  0x00007f78690acb20 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906b989 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bde8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f77496fd700 (LWP 2458)):
#0  0x00007f78690adcb9 in g_mutex_lock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f786906ba36 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bec8 in  () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f773403f700 (LWP 2484)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f786906be54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f7736581a27 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f773333e700 (LWP 2488)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f786906be54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f773223d700 (LWP 2489)):
#0  0x00007f786cbde4cd in poll () at /lib64/libc.so.6
#1  0x00007f786906be54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f786906bf6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f786d48181b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f786d42840b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f786d24ae4a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f78704ec138 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f786d24fa7f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f786c1c8484 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f786cbe6a4d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f787316e880 (LWP 2358)):
[KCrash Handler]
#5  0x00007f7870468693 in  () at /usr/lib64/libQt5Qml.so.5
#6  0x00007f787045e20c in QQmlEnginePrivate::typeCategory(int) const () at /usr/lib64/libQt5Qml.so.5
#7  0x00007f78704acacb in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f78704ad049 in QQmlPropertyCache::resolve(QQmlPropertyData*) const () at /usr/lib64/libQt5Qml.so.5
#9  0x00007f78704ad07c in QQmlPropertyCache::ensureResolved(QQmlPropertyData*) const () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f78704ad2bd in QQmlPropertyCache::findProperty(QStringHash<QPair<int, QQmlPropertyData*> >::ConstIterator, QQmlVMEMetaObject const*, QQmlContextData*) const () at /usr/lib64/libQt5Qml.so.5
#11 0x00007f78704308c3 in QV4::QObjectWrapper::findProperty(QV4::ExecutionEngine*, QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QQmlPropertyData*) const () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f787043354a in QV4::QObjectWrapper::getQmlProperty(QV4::ExecutionContext*, QQmlContextData*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, bool) () at /usr/lib64/libQt5Qml.so.5
#13 0x00007f78704337d2 in QV4::QObjectWrapper::get(QV4::Managed*, QV4::String*, bool*) () at /usr/lib64/libQt5Qml.so.5
#14 0x00007f7870440337 in QV4::Runtime::getProperty(QV4::ExecutionContext*, QV4::ValueRef, QV4::String*) () at /usr/lib64/libQt5Qml.so.5
#15 0x00007f784c964634 in  ()
#16 0x00007f78238000c0 in  ()
#17 0x00007f78704dfd61 in QV4::QmlContextWrapper::get(QV4::Managed*, QV4::String*, bool*) () at /usr/lib64/libQt5Qml.so.5
#18 0x00007ffda21f8630 in  ()
#19 0x00007f7830332390 in  ()
#20 0x0000000000000000 in  ()

Reported using DrKonqi
Comment 1 Kai Uwe Broulik 2015-06-16 18:11:07 UTC 
Please see this blog post for why this happens: http://blog.martin-graesslin.com/blog/2014/06/where-are-my-systray-icons/