Bug 341532

Summary:	Plasma crashes when widget selector is open - possible duplicate of bug:340823
Product:	[Plasma] plasmashell	Reporter:	Krisztián Szegi <crossszegi>
Component:	Widget Explorer	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED UPSTREAM
Severity:	crash	CC:	crossszegi, kde, robby.engelmann, skip
Priority:	NOR	Keywords:	drkonqi
Version:	5.1.95
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Krisztián Szegi 2014-12-03 19:43:53 UTC

Application: plasmashell ()

Qt Version: 5.4.0
Operating System: Linux 3.17.4-2.g2d23787-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
Yeeeeey, my first bug report (hope it helps, spent some time  installing debugsources manually too)!

- What I was doing when the application crashed:

~Every time I try to add widgets to the desktop, plasmashell crashes. Only exception if i don't fiddle with it too much.
Widget adder widget doesn't need to be scrolled actually for it to crash plasmashell, searching (and therefore updating content) does the job fair enough. 

- Unusual behavior I noticed:

Sometimes wild flickering is shown for every plasma gui component after it crashes. But it happens without the crash, or even after the crash it doesn't always happen (actually, it is rare), so not sure if related.

- Custom settings of the application:

Opensuse 13.2, latest packages from 'OBS/KDE:/Frameworks5' and also latest Qt5 from 'OBS/KDE:/Qt5'. I use the fresh stable kernel from OBS/Kernel:/stable/standard

PS: KDE crash handler doesn't seem to understand that I selected bug 340823 as same issue, so posting it seperately, my report seems to be a bit better.  After seeing the report preview I realized it actually understands somewhere deep, but there is no feedback, or rather, quite the contrary: when clicking next, shows me a popup trying to convince me I didn't select any possible duplicates. But the preview shows at the end the possible duplicate

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 0x7ffd8d0d7780 (LWP 1586))]

Thread 25 (Thread 0x7ffd70bf7700 (LWP 1602)):
#0  0x00007ffd86dc149d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd834cc750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7ffd70bf6c30, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007ffd834cc750 in g_wakeup_acknowledge (wakeup=0x7ffd6c0025a0) at gwakeup.c:210
#3  0x00007ffd8348b714 in g_main_context_check (context=context@entry=0x7ffd64000990, max_priority=2147483647, fds=fds@entry=0x7ffd64002e70, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007ffd8348bb7b in g_main_context_iterate (context=context@entry=0x7ffd64000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd64000990, may_block=1) at gmain.c:3842
#6  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd70bf6e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x130d550) at thread/qthread.cpp:503
#9  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x130d550) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x130d550) at thread/qthread_unix.cpp:337
#11 0x00007ffd864780a4 in start_thread (arg=0x7ffd70bf7700) at pthread_create.c:309
#12 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 24 (Thread 0x7ffd60157700 (LWP 1610)):
#0  0x00007ffd8647c05f in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffd69adbbb3 in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007ffd69adb3d7 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007ffd864780a4 in start_thread (arg=0x7ffd60157700) at pthread_create.c:309
#4  0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 23 (Thread 0x7ffd5a1b7700 (LWP 1652)):
#0  0x00007ffd834cd904 in g_mutex_unlock (mutex=0x7ffd54000990) at gthread-posix.c:1343
#1  0x00007ffd8348bcf6 in g_main_context_iteration (context=0x7ffd54000990, may_block=<optimized out>) at gmain.c:3843
#2  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd5a1b6e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x159e9f0) at thread/qthread.cpp:503
#5  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x159e9f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#6  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x159e9f0) at thread/qthread_unix.cpp:337
#7  0x00007ffd864780a4 in start_thread (arg=0x7ffd5a1b7700) at pthread_create.c:309
#8  0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 22 (Thread 0x7ffd588a7700 (LWP 1659)):
#0  0x00007ffd834cd904 in g_mutex_unlock (mutex=0x7ffd4c000990) at gthread-posix.c:1343
#1  0x00007ffd8348bbd9 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffd4c003070, timeout=-1, context=0x7ffd4c000990) at gmain.c:4075
#2  0x00007ffd8348bbd9 in g_main_context_iterate (context=context@entry=0x7ffd4c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd4c000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd588a6e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x17646f0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x17646f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x17646f0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd588a7700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 21 (Thread 0x7ffd537af700 (LWP 1660)):
#0  0x00007ffd86dc53cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd8348bbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffd48002e70, timeout=-1, context=0x7ffd48000990) at gmain.c:4076
#2  0x00007ffd8348bbe4 in g_main_context_iterate (context=context@entry=0x7ffd48000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd48000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd537aee30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x184f8f0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x184f8f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x184f8f0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd537af700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 20 (Thread 0x7ffd526be700 (LWP 1661)):
#0  0x00007ffd834cd8e9 in g_mutex_lock (mutex=mutex@entry=0x7ffd40000990) at gthread-posix.c:1331
#1  0x00007ffd8348adf8 in g_main_context_release (context=0x7ffd40000990) at gmain.c:3205
#2  0x00007ffd8348bb91 in g_main_context_iterate (context=context@entry=0x7ffd40000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3783
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd40000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd526bde30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1934e90) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1934e90) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1934e90) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd526be700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 19 (Thread 0x7ffd515cd700 (LWP 1662)):
#0  0x00007ffd8348b294 in g_main_context_prepare (context=context@entry=0x7ffd44000990, priority=priority@entry=0x7ffd515cccf8) at gmain.c:3401
#1  0x00007ffd8348bb03 in g_main_context_iterate (context=context@entry=0x7ffd44000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#2  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd44000990, may_block=1) at gmain.c:3842
#3  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd515cce30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1a4c5e0) at thread/qthread.cpp:503
#6  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1a4c5e0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1a4c5e0) at thread/qthread_unix.cpp:337
#8  0x00007ffd864780a4 in start_thread (arg=0x7ffd515cd700) at pthread_create.c:309
#9  0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 18 (Thread 0x7ffd3ffff700 (LWP 1663)):
#0  0x00007ffd86dc149d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd834cc750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7ffd3fffec30, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007ffd834cc750 in g_wakeup_acknowledge (wakeup=0x7ffd44002540) at gwakeup.c:210
#3  0x00007ffd8348b714 in g_main_context_check (context=context@entry=0x7ffd38000990, max_priority=2147483647, fds=fds@entry=0x7ffd38002e70, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007ffd8348bb7b in g_main_context_iterate (context=context@entry=0x7ffd38000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd38000990, may_block=1) at gmain.c:3842
#6  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd3fffee30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1b3d560) at thread/qthread.cpp:503
#9  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1b3d560) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1b3d560) at thread/qthread_unix.cpp:337
#11 0x00007ffd864780a4 in start_thread (arg=0x7ffd3ffff700) at pthread_create.c:309
#12 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 17 (Thread 0x7ffd3effe700 (LWP 1664)):
#0  0x00007ffd86dc53cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd8348bbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffd30003270, timeout=-1, context=0x7ffd30000990) at gmain.c:4076
#2  0x00007ffd8348bbe4 in g_main_context_iterate (context=context@entry=0x7ffd30000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd30000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd3effde30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1c303b0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1c303b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1c303b0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd3effe700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 16 (Thread 0x7ffd3dbc7700 (LWP 1665)):
#0  0x00007ffd834cd904 in g_mutex_unlock (mutex=0x7ffd34000990) at gthread-posix.c:1343
#1  0x00007ffd8348b659 in g_main_context_check (context=context@entry=0x7ffd34000990, max_priority=2147483647, fds=fds@entry=0x7ffd34003070, n_fds=n_fds@entry=1) at gmain.c:3620
#2  0x00007ffd8348bb7b in g_main_context_iterate (context=context@entry=0x7ffd34000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd34000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd3dbc6e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1d19450) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1d19450) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1d19450) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd3dbc7700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 15 (Thread 0x7ffd3cbc6700 (LWP 1666)):
#0  0x00007ffd834cd8e9 in g_mutex_lock (mutex=mutex@entry=0x7ffd28000990) at gthread-posix.c:1331
#1  0x00007ffd8348b47b in g_main_context_query (context=context@entry=0x7ffd28000990, max_priority=2147483647, timeout=timeout@entry=0x7ffd3cbc5cfc, fds=fds@entry=0x7ffd280027d0, n_fds=n_fds@entry=1) at gmain.c:3500
#2  0x00007ffd8348bb52 in g_main_context_iterate (context=context@entry=0x7ffd28000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3763
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd28000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd3cbc5e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1dfac00) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1dfac00) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1dfac00) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd3cbc6700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7ffd2f7ff700 (LWP 1667)):
#0  0x00007ffd86dc53cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd8348bbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffd24002a70, timeout=-1, context=0x7ffd24000990) at gmain.c:4076
#2  0x00007ffd8348bbe4 in g_main_context_iterate (context=context@entry=0x7ffd24000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd24000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd2f7fee30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1f0e1a0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1f0e1a0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1f0e1a0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd2f7ff700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7ffd2e7fe700 (LWP 1668)):
#0  0x00007ffd834cd904 in g_mutex_unlock (mutex=0x7ffd1c000990) at gthread-posix.c:1343
#1  0x00007ffd8348b318 in g_main_context_prepare (context=context@entry=0x7ffd1c000990, priority=priority@entry=0x7ffd2e7fdcf8) at gmain.c:3464
#2  0x00007ffd8348bb03 in g_main_context_iterate (context=context@entry=0x7ffd1c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd1c000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd2e7fde30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x1fe4720) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x1fe4720) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x1fe4720) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd2e7fe700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7ffd2d7fd700 (LWP 1669)):
#0  0x00007ffd8647c05f in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffd8ba6361b in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7ffd8bd4cea0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007ffd8ba63649 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007ffd864780a4 in start_thread (arg=0x7ffd2d7fd700) at pthread_create.c:309
#4  0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7ffd2cefc700 (LWP 1670)):
#0  0x00007ffd86dc53cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd8348bbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffd20003270, timeout=-1, context=0x7ffd20000990) at gmain.c:4076
#2  0x00007ffd8348bbe4 in g_main_context_iterate (context=context@entry=0x7ffd20000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd20000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd2cefbe30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x20cc440) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x20cc440) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x20cc440) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffd2cefc700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7ffc99a07700 (LWP 1677)):
#0  0x00007ffd8647cedc in __GI___pthread_getspecific (key=<optimized out>) at pthread_getspecific.c:66
#1  0x00007ffd834cd4be in g_private_get (key=key@entry=0x7ffd8374cb40 <g_thread_specific_private>) at gthread-posix.c:1057
#2  0x00007ffd834b1020 in g_thread_self () at gthread.c:958
#3  0x00007ffd8348bcdd in g_main_context_iteration (context=0x7ffc94000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc99a06e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x289d1b0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x289d1b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x289d1b0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffc99a07700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7ffc93fff700 (LWP 1678)):
#0  0x00007fff2d4d2c88 in clock_gettime ()
#1  0x00007ffd86dda43d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007ffd874f1796 in qt_gettime() (ts=0x7ffc93ffeb80, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:120
#3  0x00007ffd874f1796 in qt_gettime() (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:176
#4  0x00007ffd874f1796 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:185
#5  0x00007ffd8766f479 in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7ffc8c002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007ffd8766fa05 in QTimerInfoList::timerWait(timespec&) (this=0x7ffc8c002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007ffd87670c1e in timerSourcePrepare(GSource*, gint*) (timeout=0x7ffc93ffec34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  0x00007ffd87670c1e in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7ffc93ffec34) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007ffd8348b28d in g_main_context_prepare (context=context@entry=0x7ffc8c000990, priority=priority@entry=0x7ffc93ffecb8) at gmain.c:3399
#10 0x00007ffd8348bb03 in g_main_context_iterate (context=context@entry=0x7ffc8c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#11 0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc8c000990, may_block=1) at gmain.c:3842
#12 0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc8c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc93ffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x15ad300) at thread/qthread.cpp:503
#15 0x00007ffd8ca4afe2 in QQuickPixmapReader::run() (this=0x15ad300) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/quick/util/qquickpixmapcache.cpp:712
#16 0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x15ad300) at thread/qthread_unix.cpp:337
#17 0x00007ffd864780a4 in start_thread (arg=0x7ffc93fff700) at pthread_create.c:309
#18 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7ffc9281d700 (LWP 1679)):
#0  0x00007ffd86dc53cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd8348bbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffc84003270, timeout=-1, context=0x7ffc84000990) at gmain.c:4076
#2  0x00007ffd8348bbe4 in g_main_context_iterate (context=context@entry=0x7ffc84000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc84000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc9281ce30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x2c1dad0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x2c1dad0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x2c1dad0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffc9281d700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7ffc8bfff700 (LWP 1680)):
#0  0x00007ffd86dc149d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd834cc750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7ffc8bffec30, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007ffd834cc750 in g_wakeup_acknowledge (wakeup=0x7ffc84002770) at gwakeup.c:210
#3  0x00007ffd8348b714 in g_main_context_check (context=context@entry=0x7ffc80000990, max_priority=2147483647, fds=fds@entry=0x7ffc80002c70, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007ffd8348bb7b in g_main_context_iterate (context=context@entry=0x7ffc80000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc80000990, may_block=1) at gmain.c:3842
#6  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc8bffee30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x35b88d0) at thread/qthread.cpp:503
#9  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x35b88d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x35b88d0) at thread/qthread_unix.cpp:337
#11 0x00007ffd864780a4 in start_thread (arg=0x7ffc8bfff700) at pthread_create.c:309
#12 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7ffc8affe700 (LWP 1681)):
#0  0x00007ffd86dc149d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd834cc750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7ffc8affdc30, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007ffd834cc750 in g_wakeup_acknowledge (wakeup=0x7ffc80002160) at gwakeup.c:210
#3  0x00007ffd8348b714 in g_main_context_check (context=context@entry=0x7ffc78000990, max_priority=2147483647, fds=fds@entry=0x7ffc78003270, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007ffd8348bb7b in g_main_context_iterate (context=context@entry=0x7ffc78000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc78000990, may_block=1) at gmain.c:3842
#6  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc8affde30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x36e04d0) at thread/qthread.cpp:503
#9  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x36e04d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x36e04d0) at thread/qthread_unix.cpp:337
#11 0x00007ffd864780a4 in start_thread (arg=0x7ffc8affe700) at pthread_create.c:309
#12 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7ffc89ffd700 (LWP 1682)):
#0  0x00007ffd86dc53cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffd8348bbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7ffc7c003270, timeout=-1, context=0x7ffc7c000990) at gmain.c:4076
#2  0x00007ffd8348bbe4 in g_main_context_iterate (context=context@entry=0x7ffc7c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc7c000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc89ffce30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x37e2ef0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x37e2ef0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x37e2ef0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffc89ffd700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7ffc88ffc700 (LWP 1683)):
#0  0x00007ffd83489024 in g_source_iter_next (iter=iter@entry=0x7ffc88ffbc80, source=source@entry=0x7ffc88ffbc78) at gmain.c:923
#1  0x00007ffd8348b22b in g_main_context_prepare (context=context@entry=0x7ffc70000990, priority=priority@entry=0x7ffc88ffbcf8) at gmain.c:3377
#2  0x00007ffd8348bb03 in g_main_context_iterate (context=context@entry=0x7ffc70000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc70000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc88ffbe30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x38a9dd0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x38a9dd0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x38a9dd0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffc88ffc700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7ffc76fa7700 (LWP 1684)):
#0  0x00007ffd8348b46f in g_main_context_query (context=context@entry=0x7ffc6c000990, max_priority=2147483647, timeout=timeout@entry=0x7ffc76fa6cfc, fds=fds@entry=0x7ffc6c002e70, n_fds=n_fds@entry=1) at gmain.c:3496
#1  0x00007ffd8348bb52 in g_main_context_iterate (context=context@entry=0x7ffc6c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3763
#2  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc6c000990, may_block=1) at gmain.c:3842
#3  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc76fa6e30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x3b06280) at thread/qthread.cpp:503
#6  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x3b06280) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x3b06280) at thread/qthread_unix.cpp:337
#8  0x00007ffd864780a4 in start_thread (arg=0x7ffc76fa7700) at pthread_create.c:309
#9  0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7ffc6bfff700 (LWP 1690)):
#0  0x00007ffd834cd904 in g_mutex_unlock (mutex=0x7ffc64000990) at gthread-posix.c:1343
#1  0x00007ffd8348b659 in g_main_context_check (context=context@entry=0x7ffc64000990, max_priority=2147483647, fds=fds@entry=0x7ffc64003270, n_fds=n_fds@entry=1) at gmain.c:3620
#2  0x00007ffd8348bb7b in g_main_context_iterate (context=context@entry=0x7ffc64000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffc64000990, may_block=1) at gmain.c:3842
#4  0x00007ffd87670e4b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc6bffee30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007ffd8743a9fa in QThread::exec() (this=this@entry=0x3af48c0) at thread/qthread.cpp:503
#7  0x00007ffd89958128 in QQmlThreadPrivate::run() (this=0x3af48c0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007ffd8743f61f in QThreadPrivate::start(void*) (arg=0x3af48c0) at thread/qthread_unix.cpp:337
#9  0x00007ffd864780a4 in start_thread (arg=0x7ffc6bfff700) at pthread_create.c:309
#10 0x00007ffd86dcd7fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7ffd8d0d7780 (LWP 1586)):
[KCrash Handler]
#5  0x00007ffd898c2e7b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4value_inl_p.h:65
#6  0x00007ffd898c2e7b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4value_inl_p.h:276
#7  0x00007ffd898c2e7b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (v=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4value_p.h:558
#8  0x00007ffd898c2e7b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (v=<optimized out>, scope=<synthetic pointer>, this=<synthetic pointer>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4scopedvalue_p.h:304
#9  0x00007ffd898c2e7b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (this=0x2490700, id=1, value=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlvmemetaobject.cpp:1030
#10 0x00007ffd898c335f in QQmlVMEMetaObject::setVMEProperty(int, QV4::ValueRef) (this=<optimized out>, index=<optimized out>, v=..., v@entry=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlvmemetaobject.cpp:1206
#11 0x00007ffd898dc478 in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::ValueRef, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=0x225ea40, core=..., context=0x220f800, expression=expression@entry=0x247f2e0, result=..., isUndefined=isUndefined@entry=false, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlproperty.cpp:1539
#12 0x00007ffd89948412 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) (this=0x247f2c0, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlbinding.cpp:224
#13 0x00007ffd89948b9e in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlbinding_p.h:97
#14 0x00007ffd89948b9e in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (e=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlbinding.cpp:285
#15 0x00007ffd89923a5f in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) (endpoint=0x24aa970, a=a@entry=0x7fff2d408f30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlnotifier.cpp:73
#16 0x00007ffd898c8d7c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) (object=0x22439c0, index=29, a=0x7fff2d408f30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlengine.cpp:709
#17 0x00007ffd87648be3 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x22439c0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x7fff2d408f30) at kernel/qobject.cpp:3603
#18 0x00007ffd898bfac5 in QQmlVMEMetaObject::activate(QObject*, int, void**) (this=this@entry=0x22da420, object=<optimized out>, index=index@entry=38, args=args@entry=0x7fff2d408f30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlvmemetaobject.cpp:1325
#19 0x00007ffd898c210f in QQmlVMEMetaObject::metaCall(QMetaObject::Call, int, void**) (this=0x22da420, c=QMetaObject::InvokeMetaMethod, _id=38, a=0x7fff2d408f30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlvmemetaobject.cpp:914
#20 0x00007ffd898a171b in CallMethod(QObject*, int, int, int, int*, QV8Engine*, QV4::CallData*) (object=object@entry=0x22439c0, index=38, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x1e1f9c0, callArgs=callArgs@entry=0x7ffd2f800088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4qobjectwrapper.cpp:1165
#21 0x00007ffd898a2b83 in CallPrecise(QObject*, QQmlPropertyData const&, QV8Engine*, QV4::CallData*) (object=object@entry=0x22439c0, data=..., engine=engine@entry=0x1e1f9c0, callArgs=callArgs@entry=0x7ffd2f800088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4qobjectwrapper.cpp:1403
#22 0x00007ffd898a3213 in QV4::QObjectMethod::callInternal(QV4::CallData*) (this=<optimized out>, callData=0x7ffd2f800088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4qobjectwrapper.cpp:1884
#23 0x00007ffd898ae149 in QV4::Runtime::callActivationProperty(QV4::ExecutionContext*, QV4::String*, QV4::CallData*) (d=0x7ffd2f800088, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4object_p.h:278
#24 0x00007ffd898ae149 in QV4::Runtime::callActivationProperty(QV4::ExecutionContext*, QV4::String*, QV4::CallData*) (context=<optimized out>, name=0x7ffd3c2fa950, callData=0x7ffd2f800088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4runtime.cpp:904
#25 0x00007ffd8cf87da6 in  ()
#26 0x0000000001e18a20 in  ()
#27 0x0000000002a995b0 in  ()
#28 0x0003000000000002 in  ()
#29 0x00007ffd2f800058 in  ()
#30 0x00007ffd3c386000 in  ()
#31 0x00007ffd2f800058 in  ()
#32 0x0000000001e18a20 in  ()
#33 0x00007ffd2f800058 in  ()
#34 0x00007ffd3c386000 in  ()
#35 0x00007ffd89864065 in QV4::SimpleScriptFunction::call(QV4::Managed*, QV4::CallData*) (that=0x7ffd3c2fbf10, callData=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4functionobject.cpp:511
#36 0x00007ffd8994128c in QQmlJavaScriptExpression::evaluate(QQmlContextData*, QV4::ValueRef, QV4::CallData*, bool*) (d=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/jsruntime/qv4object_p.h:278
#37 0x00007ffd8994128c in QQmlJavaScriptExpression::evaluate(QQmlContextData*, QV4::ValueRef, QV4::CallData*, bool*) (this=this@entry=0x223bf50, context=<optimized out>, function=..., function@entry=..., callData=callData@entry=0x7ffd2f800008, isUndefined=isUndefined@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmljavascriptexpression.cpp:158
#38 0x00007ffd898e95c6 in QQmlBoundSignalExpression::evaluate(void**) (this=<optimized out>, a=a@entry=0x7fff2d409b30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlboundsignal.cpp:281
#39 0x00007ffd898e997a in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) (e=<optimized out>, a=0x7fff2d409b30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlboundsignal.cpp:408
#40 0x00007ffd89923a5f in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) (endpoint=0x225c298, a=a@entry=0x7fff2d409b30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlnotifier.cpp:73
#41 0x00007ffd898c8d7c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) (object=0x22439c0, index=3, a=0x7fff2d409b30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0-rc/src/qml/qml/qqmlengine.cpp:709
#42 0x00007ffd87648be3 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x22439c0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff2d409b30) at kernel/qobject.cpp:3603
#43 0x00007ffd87649987 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x22439c0, m=m@entry=0x7ffd6b7f99a0 <Plasma::DataSource::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff2d409b30) at kernel/qobject.cpp:3582
#44 0x00007ffd6b5e4477 in Plasma::DataSource::newData(QString const&, QMap<QString, QVariant> const&) (this=this@entry=0x22439c0, _t1=..., _t2=...) at /usr/src/debug/plasma-framework-5.4.0/build/src/declarativeimports/core/moc_datasource.cpp:358
#45 0x00007ffd6b5d3e3f in Plasma::DataSource::dataUpdated(QString const&, QMap<QString, QVariant> const&) (this=0x22439c0, sourceName=..., data=...) at /usr/src/debug/plasma-framework-5.4.0/src/declarativeimports/core/datasource.cpp:151
#46 0x00007ffd6b5e59ed in Plasma::DataSource::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/plasma-framework-5.4.0/build/src/declarativeimports/core/moc_datasource.cpp:178
#47 0x00007ffd87649361 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x1509c90, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff2d409d40) at kernel/qobject.cpp:3716
#48 0x00007ffd87649987 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x1509c90, m=m@entry=0x7ffd8c2691a0 <Plasma::SignalRelay::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff2d409d40) at kernel/qobject.cpp:3582
#49 0x00007ffd8c00ac47 in Plasma::SignalRelay::dataUpdated(QString const&, QMap<QString, QVariant> const&) (this=this@entry=0x1509c90, _t1=..., _t2=...) at /usr/src/debug/plasma-framework-5.4.0/build/src/plasma/moc_datacontainer_p.cpp:125
#50 0x00007ffd8c00b269 in Plasma::SignalRelay::timerEvent(QTimerEvent*) (this=0x1509c90, event=<optimized out>) at /usr/src/debug/plasma-framework-5.4.0/src/plasma/private/datacontainer_p.cpp:157
#51 0x00007ffd87649f5c in QObject::event(QEvent*) (this=0x1509c90, e=<optimized out>) at kernel/qobject.cpp:1226
#52 0x00007ffd882e11dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#53 0x00007ffd882e61f0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#54 0x00007ffd87619b05 in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fff2d40a4d0, receiver=0x1509c90, event=0x7fff2d40a120) at kernel/qcoreapplication.cpp:932
#55 0x00007ffd8767083d in QTimerInfoList::activateTimers() (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:228
#56 0x00007ffd8767083d in QTimerInfoList::activateTimers() (this=0x1260590) at kernel/qtimerinfo_unix.cpp:635
#57 0x00007ffd87670b61 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#58 0x00007ffd8348ba04 in g_main_context_dispatch (context=0x7ffd740016f0) at gmain.c:3111
#59 0x00007ffd8348ba04 in g_main_context_dispatch (context=context@entry=0x7ffd740016f0) at gmain.c:3710
#60 0x00007ffd8348bc48 in g_main_context_iterate (context=context@entry=0x7ffd740016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#61 0x00007ffd8348bcec in g_main_context_iteration (context=0x7ffd740016f0, may_block=1) at gmain.c:3842
#62 0x00007ffd87670e2c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x126e880, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#63 0x00007ffd87617a6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff2d40a360, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#64 0x00007ffd8761f0d6 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1185
#65 0x000000000042fe44 in main ()

Possible duplicates by query: bug 340823.

Reported using DrKonqi

Comment 1 David Edmundson 2014-12-13 14:53:00 UTC

Thanks, can you reopen this is you still see this with Qt 5.4

Comment 2 Krisztián Szegi 2015-01-22 01:15:12 UTC

(In reply to David Edmundson from comment #1)
> Thanks, can you reopen this is you still see this with Qt 5.4

Sorry for the late followup! The truth is, it was with Qt 5.4 already.
The bug still lingers. The last report I did was from an updated openSUSE (13.1->13.2). This time from a fresh install (but plasma5 installed as pattern like before, replacing partially the kde4 packages). Included new backtrace (some unresolved calls remain, if you have suggestion for which other debug packages I should further install, I'll test again).
If something's off with report, then sorry, and remind me. Now changing report to VERIFIED, BACKTRACE

-- Actual libQt5Core5: 
5.4.0-174.2

-- Backtrace:
Application: plasmashell (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8864dab7c0 (LWP 1798))]

Thread 31 (Thread 0x7f884f45f700 (LWP 1800)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f8861bab322 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f8861bacdef in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f885180bbf9 in  () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x253b6a0) at thread/qthread_unix.cpp:337
#5  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 30 (Thread 0x7f884cee7700 (LWP 1801)):
#0  0x00007f885ad2d904 in g_mutex_unlock (mutex=0x7f8840000990) at gthread-posix.c:1343
#1  0x00007f885aceb4f9 in g_main_context_query (context=context@entry=0x7f8840000990, max_priority=2147483647, timeout=timeout@entry=0x7f884cee6cbc, fds=fds@entry=0x7f8840003070, n_fds=n_fds@entry=1) at gmain.c:3536
#2  0x00007f885acebb52 in g_main_context_iterate (context=context@entry=0x7f8840000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3763
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8840000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f884cee6df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x262e420) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x262e420) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x262e420) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 29 (Thread 0x7f883c267700 (LWP 1803)):
#0  0x00007f885e15405f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f8845cc3bb3 in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f8845cc33d7 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 28 (Thread 0x7f883674f700 (LWP 1814)):
#0  0x00007f885ad2d904 in g_mutex_unlock (mutex=0x7f8830000990) at gthread-posix.c:1343
#1  0x00007f885acebb91 in g_main_context_iterate (context=context@entry=0x7f8830000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3783
#2  0x00007f885acebcec in g_main_context_iteration (context=0x7f8830000990, may_block=1) at gmain.c:3842
#3  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f883674edf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f885f112ada in QThread::exec() (this=this@entry=0x287ca70) at thread/qthread.cpp:503
#6  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x287ca70) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x287ca70) at thread/qthread_unix.cpp:337
#8  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 27 (Thread 0x7f882ffff700 (LWP 1819)):
#0  0x00007f885ea9949d in read () at /lib64/libc.so.6
#1  0x00007f885ad2c750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f882fffebf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f885ad2c750 in g_wakeup_acknowledge (wakeup=0x7f8828002780) at gwakeup.c:210
#3  0x00007f885aceb714 in g_main_context_check (context=context@entry=0x7f8824000990, max_priority=2147483647, fds=fds@entry=0x7f8824003070, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f8824000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f885acebcec in g_main_context_iteration (context=0x7f8824000990, may_block=1) at gmain.c:3842
#6  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f882fffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f885f112ada in QThread::exec() (this=this@entry=0x2a38150) at thread/qthread.cpp:503
#9  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2a38150) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2a38150) at thread/qthread_unix.cpp:337
#11 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 26 (Thread 0x7f882effe700 (LWP 1820)):
#0  0x00007f885ea9949d in read () at /lib64/libc.so.6
#1  0x00007f885ad2c750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f882effdbf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f885ad2c750 in g_wakeup_acknowledge (wakeup=0x7f8824002570) at gwakeup.c:210
#3  0x00007f885aceb714 in g_main_context_check (context=context@entry=0x7f881c000990, max_priority=2147483647, fds=fds@entry=0x7f881c002e70, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f881c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f885acebcec in g_main_context_iteration (context=0x7f881c000990, may_block=1) at gmain.c:3842
#6  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f881c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f882effddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f885f112ada in QThread::exec() (this=this@entry=0x2b55d40) at thread/qthread.cpp:503
#9  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2b55d40) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2b55d40) at thread/qthread_unix.cpp:337
#11 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 25 (Thread 0x7f882dffd700 (LWP 1821)):
#0  0x00007fff51002c83 in clock_gettime ()
#1  0x00007f885eab243d in clock_gettime () at /lib64/libc.so.6
#2  0x00007f885f1c9876 in qt_gettime() (ts=0x7f882dffcb80, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:120
#3  0x00007f885f1c9876 in qt_gettime() (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:176
#4  0x00007f885f1c9876 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:185
#5  0x00007f885f347559 in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7f88200030d0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f885f347ae5 in QTimerInfoList::timerWait(timespec&) (this=0x7f88200030d0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f885f348cfe in timerSourcePrepare(GSource*, gint*) (timeout=0x7f882dffcc34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  0x00007f885f348cfe in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f882dffcc34) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f885aceb28d in g_main_context_prepare (context=context@entry=0x7f8820000990, priority=priority@entry=0x7f882dffccb8) at gmain.c:3399
#10 0x00007f885acebb03 in g_main_context_iterate (context=context@entry=0x7f8820000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#11 0x00007f885acebcec in g_main_context_iteration (context=0x7f8820000990, may_block=1) at gmain.c:3842
#12 0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f882dffcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f885f112ada in QThread::exec() (this=this@entry=0x2c3b990) at thread/qthread.cpp:503
#15 0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2c3b990) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#16 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2c3b990) at thread/qthread_unix.cpp:337
#17 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#18 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 24 (Thread 0x7f882cffc700 (LWP 1822)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f8814002e70, timeout=-1, context=0x7f8814000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8814000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8814000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f882cffbdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x2d42710) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2d42710) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2d42710) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 23 (Thread 0x7f881b7ff700 (LWP 1823)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f8810002e70, timeout=-1, context=0x7f8810000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8810000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8810000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f881b7fedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x2e308b0) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2e308b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2e308b0) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 22 (Thread 0x7f881a7fe700 (LWP 1824)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f8808003270, timeout=-1, context=0x7f8808000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8808000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8808000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f881a7fddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x2f19a90) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2f19a90) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2f19a90) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 21 (Thread 0x7f88197fd700 (LWP 1825)):
#0  0x00007f885ad2d904 in g_mutex_unlock (mutex=0x7f880c000990) at gthread-posix.c:1343
#1  0x00007f885acebb91 in g_main_context_iterate (context=context@entry=0x7f880c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3783
#2  0x00007f885acebcec in g_main_context_iteration (context=0x7f880c000990, may_block=1) at gmain.c:3842
#3  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f880c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f88197fcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f885f112ada in QThread::exec() (this=this@entry=0x2ffc1f0) at thread/qthread.cpp:503
#6  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x2ffc1f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x2ffc1f0) at thread/qthread_unix.cpp:337
#8  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 20 (Thread 0x7f8807fff700 (LWP 1826)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f88000027d0, timeout=-1, context=0x7f8800000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8800000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8800000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f88000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8807ffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x30e4f50) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x30e4f50) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x30e4f50) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 19 (Thread 0x7f8806ffe700 (LWP 1827)):
#0  0x00007f885ad2d904 in g_mutex_unlock (mutex=0x7f87f8000990) at gthread-posix.c:1343
#1  0x00007f885aceb659 in g_main_context_check (context=context@entry=0x7f87f8000990, max_priority=2147483647, fds=fds@entry=0x7f87f8002a70, n_fds=n_fds@entry=1) at gmain.c:3620
#2  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f87f8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f87f8000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8806ffddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x3208f00) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x3208f00) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x3208f00) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 18 (Thread 0x7f8805ffd700 (LWP 1828)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f87fc003270, timeout=-1, context=0x7f87fc000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f87fc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f87fc000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8805ffcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x32eb2c0) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x32eb2c0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x32eb2c0) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 17 (Thread 0x7f8804ffc700 (LWP 1829)):
#0  0x00007f885e15405f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f886376b61b in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f8863a54ea0 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f886376b649 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 16 (Thread 0x7f8777fff700 (LWP 1830)):
#0  0x00007f885ad2d904 in g_mutex_unlock (mutex=0x7f8770000990) at gthread-posix.c:1343
#1  0x00007f885aceb659 in g_main_context_check (context=context@entry=0x7f8770000990, max_priority=2147483647, fds=fds@entry=0x7f8770003270, n_fds=n_fds@entry=1) at gmain.c:3620
#2  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f8770000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8770000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8777ffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x33c40e0) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x33c40e0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x33c40e0) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f8775827700 (LWP 1832)):
#0  0x00007f885f347ad0 in QTimerInfoList::timerWait(timespec&) (this=0x7f8768002ad0, tm=...) at kernel/qtimerinfo_unix.cpp:378
#1  0x00007f885f348cfe in timerSourcePrepare(GSource*, gint*) (timeout=0x7f8775826c34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#2  0x00007f885f348cfe in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f8775826c34) at kernel/qeventdispatcher_glib.cpp:160
#3  0x00007f885aceb28d in g_main_context_prepare (context=context@entry=0x7f8768000990, priority=priority@entry=0x7f8775826cb8) at gmain.c:3399
#4  0x00007f885acebb03 in g_main_context_iterate (context=context@entry=0x7f8768000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#5  0x00007f885acebcec in g_main_context_iteration (context=0x7f8768000990, may_block=1) at gmain.c:3842
#6  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8775826df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f885f112ada in QThread::exec() (this=this@entry=0x28cdb60) at thread/qthread.cpp:503
#9  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x28cdb60) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x28cdb60) at thread/qthread_unix.cpp:337
#11 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f876fdf7700 (LWP 1833)):
#0  0x00007f885ad2c732 in g_wakeup_acknowledge (wakeup=0x7f8768002190) at gwakeup.c:206
#1  0x00007f885aceb714 in g_main_context_check (context=context@entry=0x7f8764000990, max_priority=2147483647, fds=fds@entry=0x7f8764003130, n_fds=n_fds@entry=1) at gmain.c:3579
#2  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f8764000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8764000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f876fdf6db0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x3c24070) at thread/qthread.cpp:503
#7  0x00007f886474afe2 in QQuickPixmapReader::run() (this=0x3c24070) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/quick/util/qquickpixmapcache.cpp:712
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x3c24070) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f876ee73700 (LWP 1836)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f875c003270, timeout=-1, context=0x7f875c000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f875c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f875c000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f875c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f876ee72df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x3ba9e30) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x3ba9e30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x3ba9e30) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f876ccbf700 (LWP 1837)):
#0  0x00007f885ea9949d in read () at /lib64/libc.so.6
#1  0x00007f885ad2c750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f876ccbebf0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f885ad2c750 in g_wakeup_acknowledge (wakeup=0x7f875c002770) at gwakeup.c:210
#3  0x00007f885aceb714 in g_main_context_check (context=context@entry=0x7f8760000990, max_priority=2147483647, fds=fds@entry=0x7f8760002c70, n_fds=n_fds@entry=1) at gmain.c:3579
#4  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f8760000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#5  0x00007f885acebcec in g_main_context_iteration (context=0x7f8760000990, may_block=1) at gmain.c:3842
#6  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f876ccbedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f885f112ada in QThread::exec() (this=this@entry=0x3f9d320) at thread/qthread.cpp:503
#9  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x3f9d320) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x3f9d320) at thread/qthread_unix.cpp:337
#11 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f875b7ff700 (LWP 1838)):
#0  0x00007f885ad2d8e9 in g_mutex_lock (mutex=mutex@entry=0x7f8754000990) at gthread-posix.c:1331
#1  0x00007f885aceb66c in g_main_context_check (context=context@entry=0x7f8754000990, max_priority=2147483647, fds=fds@entry=0x7f8754003270, n_fds=n_fds@entry=1) at gmain.c:3624
#2  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f8754000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8754000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f875b7fedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x30ef0d0) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x30ef0d0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x30ef0d0) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f875a7fe700 (LWP 1839)):
#0  0x00007f885ad2d8e9 in g_mutex_lock (mutex=mutex@entry=0x7f874c000990) at gthread-posix.c:1331
#1  0x00007f885aceb299 in g_main_context_prepare (context=context@entry=0x7f874c000990, priority=priority@entry=0x7f875a7fdcb8) at gmain.c:3401
#2  0x00007f885acebb03 in g_main_context_iterate (context=context@entry=0x7f874c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f874c000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f874c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f875a7fddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x4171b20) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x4171b20) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x4171b20) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f87597fd700 (LWP 1840)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f8750002e70, timeout=-1, context=0x7f8750000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8750000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8750000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f87597fcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x426e7c0) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x426e7c0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x426e7c0) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f874bfff700 (LWP 1841)):
#0  0x00007f885ad2d8e9 in g_mutex_lock (mutex=mutex@entry=0x7f8744000990) at gthread-posix.c:1331
#1  0x00007f885aceacb0 in g_main_context_acquire (context=0x7f8744000990) at gmain.c:3171
#2  0x00007f885acebaa5 in g_main_context_iterate (context=context@entry=0x7f8744000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3731
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8744000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f874bffedf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x4383820) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x4383820) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x4383820) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f874affe700 (LWP 1842)):
#0  0x00007f885aceb62e in g_main_context_check (context=context@entry=0x7f873c000990, max_priority=2147483647, fds=fds@entry=0x7f873c003270, n_fds=n_fds@entry=1) at gmain.c:3692
#1  0x00007f885acebb7b in g_main_context_iterate (context=context@entry=0x7f873c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#2  0x00007f885acebcec in g_main_context_iteration (context=0x7f873c000990, may_block=1) at gmain.c:3842
#3  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f873c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f874affddf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f885f112ada in QThread::exec() (this=this@entry=0x4447c20) at thread/qthread.cpp:503
#6  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x4447c20) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#7  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x4447c20) at thread/qthread_unix.cpp:337
#8  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f8749ffd700 (LWP 1843)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f87400025d0, timeout=-1, context=0x7f8740000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8740000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8740000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8749ffcdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x455fb30) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x455fb30) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x455fb30) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f8748ffc700 (LWP 1844)):
#0  0x00007fff51002c83 in clock_gettime ()
#1  0x00007f885eab243d in clock_gettime () at /lib64/libc.so.6
#2  0x00007f885f1c9876 in qt_gettime() (ts=0x7f8748ffbb80, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:120
#3  0x00007f885f1c9876 in qt_gettime() (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:176
#4  0x00007f885f1c9876 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:185
#5  0x00007f885f347559 in QTimerInfoList::updateCurrentTime() (this=this@entry=0x7f8734002ad0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f885f347ae5 in QTimerInfoList::timerWait(timespec&) (this=0x7f8734002ad0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f885f348cfe in timerSourcePrepare(GSource*, gint*) (timeout=0x7f8748ffbc34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  0x00007f885f348cfe in timerSourcePrepare(GSource*, gint*) (source=<optimized out>, timeout=timeout@entry=0x7f8748ffbc34) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f885aceb28d in g_main_context_prepare (context=context@entry=0x7f8734000990, priority=priority@entry=0x7f8748ffbcb8) at gmain.c:3399
#10 0x00007f885acebb03 in g_main_context_iterate (context=context@entry=0x7f8734000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#11 0x00007f885acebcec in g_main_context_iteration (context=0x7f8734000990, may_block=1) at gmain.c:3842
#12 0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8748ffbdf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f885f112ada in QThread::exec() (this=this@entry=0x4627650) at thread/qthread.cpp:503
#15 0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x4627650) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#16 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x4627650) at thread/qthread_unix.cpp:337
#17 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#18 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f873a347700 (LWP 1853)):
#0  0x00007f885ad2d904 in g_mutex_unlock (mutex=0x7f8730000990) at gthread-posix.c:1343
#1  0x00007f885aceb280 in g_main_context_prepare (context=context@entry=0x7f8730000990, priority=priority@entry=0x7f873a346cb8) at gmain.c:3397
#2  0x00007f885acebb03 in g_main_context_iterate (context=context@entry=0x7f8730000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8730000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f873a346df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x3e97170) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x3e97170) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x3e97170) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f8739346700 (LWP 1854)):
#0  0x00007f885f1101bf in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x52a9528: 0x0) at ../../src/corelib/arch/qatomic_x86.h:259
#1  0x00007f885f1101bf in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x52a9528: 0x0) at ../../src/corelib/thread/qgenericatomic.h:175
#2  0x00007f885f1101bf in QMutex::unlock() (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x52a9528) at ../../src/corelib/thread/qbasicatomic.h:272
#3  0x00007f885f1101bf in QMutex::unlock() (current=<synthetic pointer>, this=this@entry=0x52a9528) at thread/qmutex.h:85
#4  0x00007f885f1101bf in QMutex::unlock() (this=this@entry=0x52a9528) at thread/qmutex.cpp:264
#5  0x00007f885f348e65 in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>) at ../../src/corelib/thread/qmutex.h:138
#6  0x00007f885f348e65 in postEventSourcePrepare(GSource*, gint*) (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../src/corelib/thread/qmutex.h:132
#7  0x00007f885f348e65 in postEventSourcePrepare(GSource*, gint*) (this=0x52a9500) at ../../src/corelib/thread/qthread_p.h:244
#8  0x00007f885f348e65 in postEventSourcePrepare(GSource*, gint*) (s=0x7f87280012d0, timeout=timeout@entry=0x7f8739345c34) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f885aceb28d in g_main_context_prepare (context=context@entry=0x7f8728000990, priority=priority@entry=0x7f8739345cb8) at gmain.c:3399
#10 0x00007f885acebb03 in g_main_context_iterate (context=context@entry=0x7f8728000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3761
#11 0x00007f885acebcec in g_main_context_iteration (context=0x7f8728000990, may_block=1) at gmain.c:3842
#12 0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f8739345df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f885f112ada in QThread::exec() (this=this@entry=0x52a9350) at thread/qthread.cpp:503
#15 0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x52a9350) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#16 0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x52a9350) at thread/qthread_unix.cpp:337
#17 0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#18 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f872cea1700 (LWP 3671)):
#0  0x00007f885ea9d3cd in poll () at /lib64/libc.so.6
#1  0x00007f885acebbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f8724002e70, timeout=-1, context=0x7f8724000990) at gmain.c:4076
#2  0x00007f885acebbe4 in g_main_context_iterate (context=context@entry=0x7f8724000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f885acebcec in g_main_context_iteration (context=0x7f8724000990, may_block=1) at gmain.c:3842
#4  0x00007f885f348f2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f87240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f872cea0df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f885f112ada in QThread::exec() (this=this@entry=0x5df29a0) at thread/qthread.cpp:503
#7  0x00007f8861640158 in QQmlThreadPrivate::run() (this=0x5df29a0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f885f1176ff in QThreadPrivate::start(void*) (arg=0x5df29a0) at thread/qthread_unix.cpp:337
#9  0x00007f885e1500a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f885eaa57fd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f8864dab7c0 (LWP 1798)):
[KCrash Handler]
#5  0x00007f88615aaf0b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4value_inl_p.h:65
#6  0x00007f88615aaf0b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4value_inl_p.h:276
#7  0x00007f88615aaf0b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (v=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4value_p.h:558
#8  0x00007f88615aaf0b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (v=<optimized out>, scope=<synthetic pointer>, this=<synthetic pointer>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4scopedvalue_p.h:304
#9  0x00007f88615aaf0b in QQmlVMEMetaObject::writeVarProperty(int, QV4::ValueRef) (this=0x37440a0, id=1, value=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlvmemetaobject.cpp:1030
#10 0x00007f88615ab3ef in QQmlVMEMetaObject::setVMEProperty(int, QV4::ValueRef) (this=<optimized out>, index=<optimized out>, v=..., v@entry=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlvmemetaobject.cpp:1206
#11 0x00007f88615c4508 in QQmlPropertyPrivate::writeBinding(QObject*, QQmlPropertyData const&, QQmlContextData*, QQmlJavaScriptExpression*, QV4::ValueRef, bool, QFlags<QQmlPropertyPrivate::WriteFlag>) (object=0x37427f0, core=..., context=0x350a590, expression=expression@entry=0x3744dd0, result=..., isUndefined=isUndefined@entry=false, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlproperty.cpp:1539
#12 0x00007f8861630442 in QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>) (this=0x3744db0, flags=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlbinding.cpp:224
#13 0x00007f8861630bce in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlbinding_p.h:97
#14 0x00007f8861630bce in QQmlBinding::expressionChanged(QQmlJavaScriptExpression*) (e=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlbinding.cpp:285
#15 0x00007f886160baef in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) (endpoint=0x3746b80, a=a@entry=0x7fff50fba6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlnotifier.cpp:73
#16 0x00007f88615b0e0c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) (object=0x3511200, index=29, a=0x7fff50fba6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlengine.cpp:715
#17 0x00007f885f320cc3 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x3511200, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x7fff50fba6f0) at kernel/qobject.cpp:3603
#18 0x00007f88615a7b55 in QQmlVMEMetaObject::activate(QObject*, int, void**) (this=this@entry=0x352e630, object=<optimized out>, index=index@entry=38, args=args@entry=0x7fff50fba6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlvmemetaobject.cpp:1325
#19 0x00007f88615aa19f in QQmlVMEMetaObject::metaCall(QMetaObject::Call, int, void**) (this=0x352e630, c=QMetaObject::InvokeMetaMethod, _id=38, a=0x7fff50fba6f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlvmemetaobject.cpp:914
#20 0x00007f88615897ab in CallMethod(QObject*, int, int, int, int*, QV8Engine*, QV4::CallData*) (object=object@entry=0x3511200, index=38, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x30e59b0, callArgs=callArgs@entry=0x7f8806fff088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4qobjectwrapper.cpp:1165
#21 0x00007f886158ac13 in CallPrecise(QObject*, QQmlPropertyData const&, QV8Engine*, QV4::CallData*) (object=object@entry=0x3511200, data=..., engine=engine@entry=0x30e59b0, callArgs=callArgs@entry=0x7f8806fff088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4qobjectwrapper.cpp:1403
#22 0x00007f886158b2a3 in QV4::QObjectMethod::callInternal(QV4::CallData*) (this=<optimized out>, callData=0x7f8806fff088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4qobjectwrapper.cpp:1884
#23 0x00007f88615961d9 in QV4::Runtime::callActivationProperty(QV4::ExecutionContext*, QV4::String*, QV4::CallData*) (d=0x7f8806fff088, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4object_p.h:278
#24 0x00007f88615961d9 in QV4::Runtime::callActivationProperty(QV4::ExecutionContext*, QV4::String*, QV4::CallData*) (context=<optimized out>, name=0x7f882c10d610, callData=0x7f8806fff088) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4runtime.cpp:904
#25 0x00007f88635f7da6 in  ()
#26 0x00007fff50fbad10 in  ()
#27 0x0000000005199d40 in  ()
#28 0x0003000000000002 in  ()
#29 0x00007f8806fff058 in  ()
#30 0x00007f882c198000 in  ()
#31 0x00007f8806fff058 in  ()
#32 0x00000000030e5b00 in  ()
#33 0x00007f8806fff058 in  ()
#34 0x00007f882c198000 in  ()
#35 0x00007f886154c0f5 in QV4::SimpleScriptFunction::call(QV4::Managed*, QV4::CallData*) (that=0x7f882c10eb70, callData=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4functionobject.cpp:511
#36 0x00007f88616292bc in QQmlJavaScriptExpression::evaluate(QQmlContextData*, QV4::ValueRef, QV4::CallData*, bool*) (d=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/jsruntime/qv4object_p.h:278
#37 0x00007f88616292bc in QQmlJavaScriptExpression::evaluate(QQmlContextData*, QV4::ValueRef, QV4::CallData*, bool*) (this=this@entry=0x352de00, context=<optimized out>, function=..., function@entry=..., callData=callData@entry=0x7f8806fff008, isUndefined=isUndefined@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmljavascriptexpression.cpp:158
#38 0x00007f88615d1656 in QQmlBoundSignalExpression::evaluate(void**) (this=<optimized out>, a=a@entry=0x7fff50fbb2f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlboundsignal.cpp:281
#39 0x00007f88615d1a0a in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) (e=<optimized out>, a=0x7fff50fbb2f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlboundsignal.cpp:408
#40 0x00007f886160baef in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) (endpoint=0x352af68, a=a@entry=0x7fff50fbb2f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlnotifier.cpp:73
#41 0x00007f88615b0e0c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) (object=0x3511200, index=3, a=0x7fff50fbb2f0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.0/src/qml/qml/qqmlengine.cpp:715
#42 0x00007f885f320cc3 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x3511200, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff50fbb2f0) at kernel/qobject.cpp:3603
#43 0x00007f885f321a67 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x3511200, m=m@entry=0x7f884c4099a0 <Plasma::DataSource::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff50fbb2f0) at kernel/qobject.cpp:3582
#44 0x00007f884c1f4917 in Plasma::DataSource::newData(QString const&, QMap<QString, QVariant> const&) (this=this@entry=0x3511200, _t1=..., _t2=...) at /usr/src/debug/plasma-framework-5.6.0/build/src/declarativeimports/core/moc_datasource.cpp:358
#45 0x00007f884c1e3fcf in Plasma::DataSource::dataUpdated(QString const&, QMap<QString, QVariant> const&) (this=0x3511200, sourceName=..., data=...) at /usr/src/debug/plasma-framework-5.6.0/src/declarativeimports/core/datasource.cpp:151
#46 0x00007f884c1f5eed in Plasma::DataSource::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/plasma-framework-5.6.0/build/src/declarativeimports/core/moc_datasource.cpp:178
#47 0x00007f885f321441 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x37647a0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff50fbb500) at kernel/qobject.cpp:3716
#48 0x00007f885f321a67 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x37647a0, m=m@entry=0x7f8863f690c0 <Plasma::SignalRelay::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff50fbb500) at kernel/qobject.cpp:3582
#49 0x00007f8863d13d37 in Plasma::SignalRelay::dataUpdated(QString const&, QMap<QString, QVariant> const&) (this=this@entry=0x37647a0, _t1=..., _t2=...) at /usr/src/debug/plasma-framework-5.6.0/build/src/plasma/moc_datacontainer_p.cpp:125
#50 0x00007f8863d14359 in Plasma::SignalRelay::timerEvent(QTimerEvent*) (this=0x37647a0, event=<optimized out>) at /usr/src/debug/plasma-framework-5.6.0/src/plasma/private/datacontainer_p.cpp:157
#51 0x00007f885f32203c in QObject::event(QEvent*) (this=0x37647a0, e=<optimized out>) at kernel/qobject.cpp:1226
#52 0x00007f885ffb91dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#53 0x00007f885ffbe1f0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#54 0x00007f885f2f1be5 in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fff50fbbc90, receiver=0x37647a0, event=0x7fff50fbb8e0) at kernel/qcoreapplication.cpp:932
#55 0x00007f885f34891d in QTimerInfoList::activateTimers() (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:228
#56 0x00007f885f34891d in QTimerInfoList::activateTimers() (this=0x2570770) at kernel/qtimerinfo_unix.cpp:635
#57 0x00007f885f348c41 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#58 0x00007f885aceba04 in g_main_context_dispatch (context=0x7f88480016f0) at gmain.c:3111
#59 0x00007f885aceba04 in g_main_context_dispatch (context=context@entry=0x7f88480016f0) at gmain.c:3710
#60 0x00007f885acebc48 in g_main_context_iterate (context=context@entry=0x7f88480016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#61 0x00007f885acebcec in g_main_context_iteration (context=0x7f88480016f0, may_block=1) at gmain.c:3842
#62 0x00007f885f348f0c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x255bda0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#63 0x00007f885f2efb4b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff50fbbb20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#64 0x00007f885f2f71b6 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1185
#65 0x0000000000432144 in main(int, char**) (argc=4, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.1.95/shell/main.cpp:150

Comment 3 David Edmundson 2015-01-26 13:11:17 UTC

*** Bug 343317 has been marked as a duplicate of this bug. ***

Comment 4 Robby Engelmann 2015-01-26 13:52:52 UTC

still valid for Qt 5.4.2

Comment 5 David Edmundson 2015-05-19 15:48:01 UTC

How can you say that?
Qt 5.4.2 isn't released yet.

Comment 6 Marco Martin 2015-05-20 09:50:10 UTC

*** Bug 347947 has been marked as a duplicate of this bug. ***