Application: plasmashell (5.3.2)

Qt Version: 5.4.2
Operating System: Linux 4.0.7-300.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
I was updating Plasma 5 in Fedora 22 KDE and after the process finished, Plasma crashed.

- Unusual behavior I noticed:
Plasma later restarted, the task bar below reappeared and so did the Fedora icon, before there was an "CPU Pipe A FIFO Overrun Intel" that seemed to be associated to FreeDesktop.

Unfortunatelly, i couldn't report it or track it well.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f1aecdc3900 (LWP 1571))]

Thread 41 (Thread 0x7f1acd906700 (LWP 1574)):
#0  0x00007f1ae4c7c66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1aeb071182 in poll (__timeout=-1, __nfds=1, __fds=0x7f1acd905bc0) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x11490b0, cond=cond@entry=0x11490f0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f1aeb072d07 in xcb_wait_for_event (c=0x11490b0) at xcb_in.c:623
#4  0x00007f1acf4499b9 in QXcbEventReader::run (this=0x11536e0) at qxcbconnection.cpp:1115
#5  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x11536e0) at thread/qthread_unix.cpp:337
#6  0x00007f1ae371f555 in start_thread (arg=0x7f1acd906700) at pthread_create.c:333
#7  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 40 (Thread 0x7f1ac73e7700 (LWP 1644)):
#0  0x00007f1ae5abcf1a in timerSourcePrepare (source=<optimized out>, timeout=0x7f1ac73e6ae4) at kernel/qeventdispatcher_glib.cpp:161
#1  0x00007f1adfe3135d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1ac00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1ac73e6ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x121a350) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x121a350) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x121a350) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1ac73e7700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7f1abe97c700 (LWP 1649)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31581 in g_main_context_query () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d37 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1ab80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1abe97bca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x1dd4af0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x1dd4af0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x1dd4af0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1abe97c700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7f1ab7fff700 (LWP 1654)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31369 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1aac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1ab7ffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x1eff4f0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x1eff4f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x1eff4f0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1ab7fff700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f1ab6ffe700 (LWP 1655)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe3167e in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1aa40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1ab6ffdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x1fe77b0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x1fe77b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x1fe77b0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1ab6ffe700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f1ab5ffd700 (LWP 1656)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe3167e in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1aa80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1ab5ffcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x20e05d0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x20e05d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x20e05d0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1ab5ffd700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f1ab4ffc700 (LWP 1661)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe3180c in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1a9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1ab4ffbca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x21d1490) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x21d1490) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x21d1490) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1ab4ffc700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f1aa37ff700 (LWP 1662)):
#0  0x00007f1adfe315b7 in g_main_context_query () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31d37 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1a980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1aa37feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x22c7270) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x22c7270) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x22c7270) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f1aa37ff700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f1aa27fe700 (LWP 1663)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:57
#1  0x00007f1ae4c7c662 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1a900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1aa27fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x23b56a0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x23b56a0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x23b56a0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1aa27fe700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f1aa17fd700 (LWP 1664)):
#0  0x00007f1adfe2ee25 in g_source_iter_next () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe312fb in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1a940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1aa17fcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x24c8e70) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x24c8e70) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x24c8e70) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1aa17fd700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f1a8ffff700 (LWP 1665)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1aec4d7474 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f1aec7c0e80 <QTWTF::pageheap_memory>) at /usr/src/debug/qtscript-opensource-src-5.4.2/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f1aec4d74b9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.4.2/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f1ae371f555 in start_thread (arg=0x7f1a8ffff700) at pthread_create.c:333
#4  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f1a0f7fe700 (LWP 1666)):
#0  0x00007f1ae4c7c66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1a080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1a0f7fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x25ae270) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x25ae270) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x25ae270) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f1a0f7fe700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f1a0d277700 (LWP 1682)):
#0  0x00007f1adfe76ee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31db1 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f1a000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1a0d276ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x2759100) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x2759100) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x2759100) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f1a0d277700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f1a07711700 (LWP 1691)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe3180c in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1a07710c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x24cb1b0) at thread/qthread.cpp:503
#7  0x00007f1aea17cb06 in QQuickPixmapReader::run (this=0x24cb1b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/util/qquickpixmapcache.cpp:714
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x24cb1b0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1a07711700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f1a06f10700 (LWP 1693)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe30ea4 in g_main_context_release () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d76 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1a06f0fca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x28c6900) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x28c6900) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x28c6900) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f1a06f10700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f19faf55700 (LWP 1708)):
#0  0x00007f1ae4c7c66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19faf54ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x2cdbfd0) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x2cdbfd0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x2cdbfd0) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19faf55700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f19f9e52700 (LWP 1709)):
#0  0x00007f1adfe3133b in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19f9e51ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x2dfce70) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x2dfce70) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x2dfce70) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19f9e52700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f19f8b48700 (LWP 1710)):
#0  0x00007f1ae4c7c66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19f8b47ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x2f06140) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x2f06140) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x2f06140) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19f8b48700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f19e77ff700 (LWP 1711)):
#0  0x00007f1ae4c78315 in read () at ../sysdeps/unix/syscall-template.S:83
#1  0x00007f1adfe75b00 in g_wakeup_acknowledge () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe318b4 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19e77feca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x2fe40a0) at thread/qthread.cpp:503
#8  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x2fe40a0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#9  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x2fe40a0) at thread/qthread_unix.cpp:337
#10 0x00007f1ae371f555 in start_thread (arg=0x7f19e77ff700) at pthread_create.c:333
#11 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f19e67fe700 (LWP 1712)):
#0  0x00007f1adfe76ee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe3178a in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d60 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19e67fdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x30d5140) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x30d5140) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x30d5140) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19e67fe700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f19e57fd700 (LWP 1713)):
#0  0x00007f1adfe76ee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe30dce in g_main_context_acquire () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31c75 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19e57fcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x31c5b60) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x31c5b60) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x31c5b60) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19e57fd700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f19d7fff700 (LWP 1714)):
#0  QTimerInfoList::repairTimersIfNeeded (this=0x7f19d0002cd0) at kernel/qtimerinfo_unix.cpp:154
#1  0x00007f1ae5abbb93 in QTimerInfoList::timerWait (this=0x7f19d0002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:380
#2  0x00007f1ae5abcf6e in timerSourcePrepareHelper (timeout=0x7f19d7ffeae4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#3  timerSourcePrepare (source=<optimized out>, timeout=0x7f19d7ffeae4) at kernel/qeventdispatcher_glib.cpp:160
#4  0x00007f1adfe3135d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#5  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#6  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#7  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19d7ffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x32b78f0) at thread/qthread.cpp:503
#10 0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x32b78f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#11 0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x32b78f0) at thread/qthread_unix.cpp:337
#12 0x00007f1ae371f555 in start_thread (arg=0x7f19d7fff700) at pthread_create.c:333
#13 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f19d6ffe700 (LWP 1715)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31369 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19d6ffdca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x33a49d0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x33a49d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x33a49d0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19d6ffe700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f19d5ffd700 (LWP 1716)):
#0  0x00007f1ae587f48f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x3498c48: 0x0) at ../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x3498c48: 0x0) at ../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x3498c48) at ../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x3498c48) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x3498c48) at thread/qmutex.cpp:264
#5  0x00007f1ae5abd121 in unlock (this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:138
#6  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../src/corelib/thread/qmutex.h:132
#7  canWaitLocked (this=0x3498c20) at ../../src/corelib/thread/qthread_p.h:243
#8  postEventSourcePrepare (s=0x7f19cc0012d0, timeout=0x7f19d5ffcae4) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f1adfe3135d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#10 0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#11 0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#12 0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19d5ffcca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x348a420) at thread/qthread.cpp:503
#15 0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x348a420) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#16 0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x348a420) at thread/qthread_unix.cpp:337
#17 0x00007f1ae371f555 in start_thread (arg=0x7f19d5ffd700) at pthread_create.c:333
#18 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f19d4ffc700 (LWP 1717)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31cc0 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19c00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19d4ffbca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x3588450) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x3588450) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x3588450) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19d4ffc700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f19c5657700 (LWP 1718)):
#0  0x00007f1ae4c7c66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19c5656c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f19d43ac397 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x4ae2920) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19c5657700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f19bb508700 (LWP 1724)):
#0  0x00007f1adfe76ee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31ed6 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#2  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19bb507ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x1220a50) at thread/qthread.cpp:503
#5  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x1220a50) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#6  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x1220a50) at thread/qthread_unix.cpp:337
#7  0x00007f1ae371f555 in start_thread (arg=0x7f19bb508700) at pthread_create.c:333
#8  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f19ba457700 (LWP 1725)):
#0  0x00007f1adfe76ee4 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31db1 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19ba456ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x53f60f0) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x53f60f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x53f60f0) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19ba457700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f19b9356700 (LWP 1726)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f1ae4c7c662 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19b9355ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x54de230) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x54de230) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x54de230) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19b9356700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f19abfff700 (LWP 1728)):
#0  0x00007f1ae4c7c66d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1adfe31dbc in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19abffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x55d64b0) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x55d64b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x55d64b0) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f19abfff700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f19a3c39700 (LWP 1731)):
#0  0x00007f1ae587f06a in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x24b7fa8: 0x1) at ../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, _q_value=@0x24b7fa8: 0x1) at ../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, this=0x24b7fa8, this@entry=0x1) at ../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x24b7fa8, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x24b7fa8) at thread/qmutex.cpp:212
#5  0x00007f1ae5abd10f in QMutexLocker (m=0x24b7fa8, this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x24b7f80) at ../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (s=0x7f199c0012d0, timeout=0x7f19a3c38ae4) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007f1adfe3135d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#9  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#10 0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#11 0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f199c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#12 0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19a3c38ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x24c0f00) at thread/qthread.cpp:503
#14 0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x24c0f00) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#15 0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x24c0f00) at thread/qthread_unix.cpp:337
#16 0x00007f1ae371f555 in start_thread (arg=0x7f19a3c39700) at pthread_create.c:333
#17 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f19a2b48700 (LWP 1732)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe30ea4 in g_main_context_release () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31d76 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x59700d0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19a2b47ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x59704e0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x59704e0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x59704e0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19a2b48700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f19a1a47700 (LWP 1733)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31956 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31e20 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f199c003120, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19a1a46ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x54e67f0) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x54e67f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x54e67f0) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19a1a47700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f19a0946700 (LWP 1734)):
#0  0x00007f1adfe76ec9 in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31369 in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ceb in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19a4221cc0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f19a0945ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x5b51580) at thread/qthread.cpp:503
#7  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x5b51580) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x5b51580) at thread/qthread_unix.cpp:337
#9  0x00007f1ae371f555 in start_thread (arg=0x7f19a0946700) at pthread_create.c:333
#10 0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f1999a42700 (LWP 1814)):
#0  0x00007f1adfe3156b in g_main_context_query () from /lib64/libglib-2.0.so.0
#1  0x00007f1adfe31d37 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f1ae5abdb8b in QEventDispatcherGlib::processEvents (this=0x7f19ac0088b0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7f1999a41ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ae5881f54 in QThread::exec (this=this@entry=0x5fe1500) at thread/qthread.cpp:503
#6  0x00007f1ae9b0c955 in QQmlThreadPrivate::run (this=0x5fe1500) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ae5886e3e in QThreadPrivate::start (arg=0x5fe1500) at thread/qthread_unix.cpp:337
#8  0x00007f1ae371f555 in start_thread (arg=0x7f1999a42700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f198881e700 (LWP 2612)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1adfe7702f in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f1997b7ec9d in gst_task_func () from /lib64/libgstreamer-1.0.so.0
#3  0x00007f1adfe59a3e in g_thread_pool_thread_proxy () from /lib64/libglib-2.0.so.0
#4  0x00007f1adfe590a5 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f1ae371f555 in start_thread (arg=0x7f198881e700) at pthread_create.c:333
#6  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f198801d700 (LWP 2614)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1adfe7702f in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f1997b7ec9d in gst_task_func () from /lib64/libgstreamer-1.0.so.0
#3  0x00007f1adfe59a3e in g_thread_pool_thread_proxy () from /lib64/libglib-2.0.so.0
#4  0x00007f1adfe590a5 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f1ae371f555 in start_thread (arg=0x7f198801d700) at pthread_create.c:333
#6  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f198701b700 (LWP 2616)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1adfe7702f in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f19978ccc82 in _gst_data_queue_wait_non_empty () from /lib64/libgstbase-1.0.so.0
#3  0x00007f19978cdf90 in gst_data_queue_pop () from /lib64/libgstbase-1.0.so.0
#4  0x00007f198cf45291 in gst_multi_queue_loop () from /usr/lib64/gstreamer-1.0/libgstcoreelements.so
#5  0x00007f1997b7eb01 in gst_task_func () from /lib64/libgstreamer-1.0.so.0
#6  0x00007f1adfe59a3e in g_thread_pool_thread_proxy () from /lib64/libglib-2.0.so.0
#7  0x00007f1adfe590a5 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#8  0x00007f1ae371f555 in start_thread (arg=0x7f198701b700) at pthread_create.c:333
#9  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f198681a700 (LWP 2617)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1adfe7702f in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f1997b7ec9d in gst_task_func () from /lib64/libgstreamer-1.0.so.0
#3  0x00007f1adfe59a3e in g_thread_pool_thread_proxy () from /lib64/libglib-2.0.so.0
#4  0x00007f1adfe590a5 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f1ae371f555 in start_thread (arg=0x7f198681a700) at pthread_create.c:333
#6  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f1986019700 (LWP 2618)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1adfe7702f in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f1997b7ec9d in gst_task_func () from /lib64/libgstreamer-1.0.so.0
#3  0x00007f1adfe59a3e in g_thread_pool_thread_proxy () from /lib64/libglib-2.0.so.0
#4  0x00007f1adfe590a5 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f1ae371f555 in start_thread (arg=0x7f1986019700) at pthread_create.c:333
#6  0x00007f1ae4c87f3d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f1aecdc3900 (LWP 1571)):
[KCrash Handler]
#6  KNotification::flags (this=this@entry=0x0) at ../../src/knotification.cpp:233
#7  0x00007f1ae2cb16a5 in NotifyByAudio::onAudioFinished (this=0x67727c0) at ../../src/notifybyaudio.cpp:141
#8  0x00007f1ae2cb8095 in NotifyByAudio::qt_static_metacall (_o=_o@entry=0x67727c0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=0, _a=_a@entry=0x7ffe3c7d8dc0) at moc_notifybyaudio.cpp:82
#9  0x00007f1ae5a9707a in QMetaObject::activate (sender=0x6b92a70, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3717
#10 0x00007f1ae5a97877 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f1ada7166e0 <Phonon::MediaObject::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3582
#11 0x00007f1ada4dbc73 in Phonon::MediaObject::finished (this=<optimized out>) at /usr/src/debug/phonon-4.8.3/x86_64-redhat-linux-gnu-Qt5/phonon/moc_mediaobject.cpp:421
#12 0x00007f1ada4de21d in Phonon::MediaObject::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/phonon-4.8.3/x86_64-redhat-linux-gnu-Qt5/phonon/moc_mediaobject.cpp:182
#13 0x00007f1ae5a97f41 in QObject::event (this=0x6b92a70, e=<optimized out>) at kernel/qobject.cpp:1245
#14 0x00007f1ae6ff87ec in QApplicationPrivate::notify_helper (this=this@entry=0x113e000, receiver=receiver@entry=0x6b92a70, e=e@entry=0x60aade0) at kernel/qapplication.cpp:3720
#15 0x00007f1ae6ffde90 in QApplication::notify (this=0x7ffe3c7d94e0, receiver=0x6b92a70, e=0x60aade0) at kernel/qapplication.cpp:3503
#16 0x00007f1ae5a6667b in QCoreApplication::notifyInternal (this=0x7ffe3c7d94e0, receiver=0x6b92a70, event=event@entry=0x60aade0) at kernel/qcoreapplication.cpp:935
#17 0x00007f1ae5a687b7 in sendEvent (event=0x60aade0, receiver=<optimized out>) at kernel/qcoreapplication.h:228
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1133b20) at kernel/qcoreapplication.cpp:1552
#19 0x00007f1ae5a68ce8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#20 0x00007f1ae5abd763 in postEventSourceDispatch (s=0x1173380) at kernel/qeventdispatcher_glib.cpp:271
#21 0x00007f1adfe31a8a in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#22 0x00007f1adfe31e20 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#23 0x00007f1adfe31ecc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#24 0x00007f1ae5abdb6f in QEventDispatcherGlib::processEvents (this=0x1185d00, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#25 0x00007f1ae5a63eba in QEventLoop::exec (this=this@entry=0x7ffe3c7d9360, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#26 0x00007f1ae5a6ba2c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#27 0x00007f1ae5f7d9bc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1507
#28 0x00007f1ae6ff4c85 in QApplication::exec () at kernel/qapplication.cpp:2956
#29 0x000000000042ef16 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:154

Reported using DrKonqi