Bug 344765

Summary: Plasma Crash in QQuickWindowPrivate::polishItems
Product: [Plasma] plasmashell Reporter: Michael Aji <michael.j.aji>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED UPSTREAM    
Severity: crash CC: andre.vmatos, asoliverez, atalanttore, bshah, danofsatx, lane.wiscombe, notmart, rdieter
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.2.0   
Target Milestone: 1.0   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Michael Aji 2015-03-03 02:29:36 UTC 
Application: plasmashell ()

Qt Version: 5.4.0
Operating System: Linux 3.18.7-200.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
Was Adding Widgets through Desktop Menu and plasma would crash after installation of any widget. Tried restarting Plasma few times and problem still occurred.

The crash can be reproduced every time.

-- Backtrace:
Application: plasmashell (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd178c2f900 (LWP 2455))]

Thread 30 (Thread 0x7fd170ae3700 (LWP 2457)):
#0  0x00007fd186e4a1fd in poll () at /lib64/libc.so.6
#1  0x00007fd18a555182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007fd18a556cff in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007fd17262a959 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#6  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7fd16a711700 (LWP 2459)):
#0  0x00007fd182a5b434 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7fd162b86700 (LWP 2479)):
#0  0x00007fff241bfb40 in clock_gettime ()
#1  0x00007fd186e63a1d in clock_gettime () at /lib64/libc.so.6
#2  0x00007fd187a98026 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007fd187c23219 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007fd187c23785 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007fd187c24b5e in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#6  0x00007fd182a5b3ed in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#7  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#8  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#9  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#12 0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#13 0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#14 0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#15 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7fd1608d1700 (LWP 2483)):
#0  0x00007fd182aa01e4 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b7f2 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7fd1537ff700 (LWP 2484)):
#0  0x00007fd182a5b3a0 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7fd15270e700 (LWP 2485)):
#0  0x00007fd182a5b380 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7fd15161d700 (LWP 2486)):
#0  0x00007fd186e45e6d in read () at /lib64/libc.so.6
#1  0x00007fd182a9ed30 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5b8ec in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7fd143fff700 (LWP 2487)):
#0  0x00007fd182a5b3db in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7fd142ffe700 (LWP 2488)):
#0  0x00007fd182a5b3a3 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7fd141bca700 (LWP 2489)):
#0  0x00007fd182a58e9a in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b38b in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7fd140bc9700 (LWP 2490)):
#0  0x00007fd186e632ef in __libc_enable_asynccancel () at /lib64/libc.so.6
#1  0x00007fd186e45e62 in read () at /lib64/libc.so.6
#2  0x00007fd182a9ed30 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5b8ec in g_main_context_check () at /lib64/libglib-2.0.so.0
#4  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#5  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#6  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#8  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#9  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#10 0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#11 0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#12 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7fd1337ff700 (LWP 2491)):
#0  0x00007fd182a58e70 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b78b in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7fd11fdfc700 (LWP 2494)):
#0  0x00007fd182aa01c9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b3f9 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7fd11edfb700 (LWP 2495)):
#0  0x00007fd186b45590 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fd18c77b794 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007fd18c77b7d9 in  () at /lib64/libQt5Script.so.5
#3  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#4  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7fd11e4fa700 (LWP 2496)):
#0  0x00007fd186e4a1fd in poll () at /lib64/libc.so.6
#1  0x00007fd182a5be24 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7fd0977b1700 (LWP 2498)):
#0  0x00007fd186e45e6d in read () at /lib64/libc.so.6
#1  0x00007fd182a9ed30 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5b8ec in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7fd095dd3700 (LWP 2499)):
#0  0x00007fd182aa01e0 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b839 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18d689286 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7fd08bfff700 (LWP 2500)):
#0  0x00007fd182aa01e4 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b3e0 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7fd0898ef700 (LWP 2501)):
#0  0x00007fd182a5b4b1 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7fd07ffff700 (LWP 2502)):
#0  0x00007fff241bfb40 in clock_gettime ()
#1  0x00007fd186e63a1d in clock_gettime () at /lib64/libc.so.6
#2  0x00007fd187a98026 in qt_gettime() () at /lib64/libQt5Core.so.5
#3  0x00007fd187c23219 in QTimerInfoList::updateCurrentTime() () at /lib64/libQt5Core.so.5
#4  0x00007fd187c23785 in QTimerInfoList::timerWait(timespec&) () at /lib64/libQt5Core.so.5
#5  0x00007fd187c24b5e in timerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#6  0x00007fd182a5b3ed in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#7  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#8  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#9  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#10 0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#11 0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#12 0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#13 0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#14 0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#15 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7fd07effe700 (LWP 2503)):
#0  0x00007fd187c24da0 in idleTimerSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#1  0x00007fd182a5b3ed in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7fd07dffd700 (LWP 2504)):
#0  0x00007fd182aa01e4 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5b7f2 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7fd07cffc700 (LWP 2505)):
#0  0x00007fd187c24be3 in socketNotifierSourceCheck(_GSource*) () at /lib64/libQt5Core.so.5
#1  0x00007fd182a5b841 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bdc3 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#10 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7fd06b7ff700 (LWP 2506)):
#0  0x00007fd182a5b65a in g_main_context_query () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bd9a in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7fd06a7fe700 (LWP 2507)):
#0  0x00007fd1879db9bf in QMutex::unlock() () at /lib64/libQt5Core.so.5
#1  0x00007fd187c24d0d in postEventSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#2  0x00007fd182a5b3ed in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#3  0x00007fd182a5bd4b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fd0697fd700 (LWP 2508)):
#0  0x00007fd186e4a1fd in poll () at /lib64/libc.so.6
#1  0x00007fd182a5be24 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fd057791700 (LWP 2511)):
#0  0x00007fd182aa01e4 in g_mutex_unlock () at /lib64/libglib-2.0.so.0
#1  0x00007fd182a5bdd9 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fd05669e700 (LWP 2512)):
#0  0x00007fd186e4a1fd in poll () at /lib64/libc.so.6
#1  0x00007fd182a5be24 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fd187c2573c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007fd1879de6f4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007fd18a1c1275 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007fd1879e34ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#9  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fd04e684700 (LWP 2516)):
#0  0x00007fd186e4a1fd in poll () at /lib64/libc.so.6
#1  0x00007fd17bc0dc51 in poll_func () at /lib64/libpulse.so.0
#2  0x00007fd17bbff231 in pa_mainloop_poll () at /lib64/libpulse.so.0
#3  0x00007fd17bbff8ce in pa_mainloop_iterate () at /lib64/libpulse.so.0
#4  0x00007fd17bbff980 in pa_mainloop_run () at /lib64/libpulse.so.0
#5  0x00007fd17bc0dbe6 in thread () at /lib64/libpulse.so.0
#6  0x00007fd17af67888 in internal_thread_func () at /usr/lib64/pulseaudio/libpulsecommon-5.0.so
#7  0x00007fd186b4052a in start_thread () at /lib64/libpthread.so.0
#8  0x00007fd186e5579d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fd178c2f900 (LWP 2455)):
[KCrash Handler]
#5  0x00007fd18a10d10f in QV4::Runtime::getProperty(QV4::ExecutionContext*, QV4::ValueRef, QV4::String*) () at /lib64/libQt5Qml.so.5
#6  0x00007fd11ca2d616 in  ()
#7  0x0000000002cf16f8 in  ()
#8  0x00007fd168859e7e in _mesa_set_add () at /usr/lib64/dri/i965_dri.so
#9  0x0000000001eb5ab0 in  ()
#10 0x00007fd1402e9000 in  ()
#11 0x00007fd18a0bfdb6 in QV4::SimpleScriptFunction::call(QV4::Managed*, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#12 0x00007fd18a1a781f in QQmlJavaScriptExpression::evaluate(QQmlContextData*, QV4::ValueRef, QV4::CallData*, bool*) () at /lib64/libQt5Qml.so.5
#13 0x00007fd18a14b9a6 in QQmlBoundSignalExpression::evaluate(void**) () at /lib64/libQt5Qml.so.5
#14 0x00007fd18a14c3eb in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) () at /lib64/libQt5Qml.so.5
#15 0x00007fd18a18ac47 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib64/libQt5Qml.so.5
#16 0x00007fd18a129ffc in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /lib64/libQt5Qml.so.5
#17 0x00007fd187bfd241 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#18 0x00007fd18d87b522 in QQuickCanvasItem::paint(QRect const&) () at /lib64/libQt5Quick.so.5
#19 0x00007fd18d81b16b in QQuickCanvasItem::updatePolish() () at /lib64/libQt5Quick.so.5
#20 0x00007fd18d728c58 in QQuickWindowPrivate::polishItems() () at /lib64/libQt5Quick.so.5
#21 0x00007fd18d6f6d33 in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () at /lib64/libQt5Quick.so.5
#22 0x00007fd18d6f77b1 in QSGGuiThreadRenderLoop::event(QEvent*) () at /lib64/libQt5Quick.so.5
#23 0x00007fd1884b6d3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#24 0x00007fd1884bc330 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#25 0x00007fd187bce4ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#26 0x00007fd187c24655 in QTimerInfoList::activateTimers() () at /lib64/libQt5Core.so.5
#27 0x00007fd187c24ab9 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#28 0x00007fd182a5baeb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#29 0x00007fd182a5be88 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#30 0x00007fd182a5bf3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#31 0x00007fd187c25727 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#32 0x00007fd187bcbd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#33 0x00007fd187bd37ec in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#34 0x000000000042e82f in main ()

Reported using DrKonqi
Comment 1 David Edmundson 2015-03-05 18:18:29 UTC 
*** Bug 344865 has been marked as a duplicate of this bug. ***
Comment 2 David Edmundson 2015-03-05 18:18:42 UTC 
*** Bug 344471 has been marked as a duplicate of this bug. ***
Comment 3 David Edmundson 2015-03-05 18:18:57 UTC 
*** Bug 342721 has been marked as a duplicate of this bug. ***
Comment 4 Bhushan Shah 2015-06-25 07:24:40 UTC 
*** Bug 349578 has been marked as a duplicate of this bug. ***
Comment 5 Marco Martin 2015-10-14 13:39:42 UTC 
This has only been reported once on Qt 5.4.
please reopen if happens again on Qt 5.5 or newer