Thread 12 (Thread 0x7fffb3758700 (LWP 12073)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555879794) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffb3757c90, __canceltype = 1434616544, __prev = 0x0}
        cbuffer = {wseq = 203, cond = 0x555555879768, mutex = 0x555555879740, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 101
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555555879740, cond=0x555555879768) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffb3757c90, __canceltype = 1434616544, __prev = 0x0}
        cbuffer = {wseq = 203, cond = 0x555555879768, mutex = 0x555555879740, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 101
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x555555879768, mutex=0x555555879740) at pthread_cond_wait.c:655
#3  0x00007ffff6444613 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x555555879740) at thread/qwaitcondition_unix.cpp:146
        code = <optimized out>
#4  0x00007ffff6444613 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x555555c72d78, mutex=mutex@entry=0x555555c72d70, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007ffff4acd47d in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x555555c72d68) at scenegraph/qsgthreadedrenderloop.cpp:257
        e = 0x0
#6  0x00007ffff4acd47d in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x555555c72cd0) at scenegraph/qsgthreadedrenderloop.cpp:936
        e = 0x0
#7  0x00007ffff4acd8e3 in QSGRenderThread::run() (this=0x555555c72cd0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x555555c72cd0) at thread/qthread_unix.cpp:329
        thr = 0x555555c72cd0
        data = 0x555555b8a3e0
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x555555c72cd0, __do_it = 1, __cancel_type = <optimized out>}
#9  0x00007ffff40816db in start_thread (arg=0x7fffb3758700) at pthread_create.c:463
        pd = 0x7fffb3758700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736204211968, 6397803397717067487, 140736204209984, 0, 93824999697616, 140737488346352, -6397655045210994977, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#10 0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fffc5989700 (LWP 12072)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x7fffac004890, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff0d265c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff0d266dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff66831eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fffac000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
        d = 0x7fffac000b40
        canWait = true
        savedFlags = {i = 0}
        result = false
#4  0x00007ffff662621a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffc5988d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
        d = 0x7fffac00c880
        locker = {val = 93824998774680}
        ref = {d = 0x7fffac00c880, locker = @0x7fffc5988cf0, exceptionCaught = true}
#5  0x00007ffff643c844 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:547
        d = 0x555555b91740
        locker = {val = 93824998774680}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6b781e8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffac00c880}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff683cf20 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff683cec0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6625f40 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#6  0x00007fffc61f3807 in QQmlDebugServerThread::run() (this=<optimized out>) at qqmldebugserver.cpp:256
        eventLoop = {<QObject> = {_vptr.QObject = 0x7fffac002600, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffffffe1a0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff683cf20 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff683cec0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6625f40 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
#7  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x555555b90198) at thread/qthread_unix.cpp:329
        thr = 0x555555b90198
        data = 0x55555592a2d0
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x555555b90198, __do_it = 1, __cancel_type = <optimized out>}
#8  0x00007ffff40816db in start_thread (arg=0x7fffc5989700) at pthread_create.c:463
        pd = 0x7fffc5989700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736508499712, 6397803397717067487, 140736508497728, 0, 93824998769048, 140737488347552, -6397896009519298849, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#9  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fffc6ffd700 (LWP 12071)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x7fffb8001de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff0d265c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff0d266dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff66831cc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fffb8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x7fffb8000b40
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#4  0x00007ffff662621a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffc6ffcdc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
        d = 0x7fffb8002a00
        locker = {val = 93824995862616}
        ref = {d = 0x7fffb8002a00, locker = @0x7fffc6ffcd50, exceptionCaught = true}
#5  0x00007ffff643c844 in QThread::exec() (this=this@entry=0x5555558cb800) at thread/qthread.cpp:547
        d = 0x5555558ca800
        locker = {val = 93824995862616}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6b781e8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffb8002a00}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff683cf20 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff683cec0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6625f40 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#6  0x00007ffff6e9a9f5 in QQmlThreadPrivate::run() (this=0x5555558cb800) at qml/ftw/qqmlthread.cpp:155
#7  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x5555558cb800) at thread/qthread_unix.cpp:329
        thr = 0x5555558cb800
        data = 0x555555915640
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x5555558cb800, __do_it = 1, __cancel_type = <optimized out>}
#8  0x00007ffff40816db in start_thread (arg=0x7fffc6ffd700) at pthread_create.c:463
        pd = 0x7fffc6ffd700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736532043520, 6397803397717067487, 140736532041536, 0, 93824995866624, 140737488347536, -6397893559240456481, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#9  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffc77fe700 (LWP 12070)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555845b1c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffc77fdcf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 37, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 18
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555555845ac8, cond=0x555555845af0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffc77fdcf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 37, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 18
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x555555845af0, mutex=0x555555845ac8) at pthread_cond_wait.c:655
#3  0x00007fffcef5f9ab in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fffcef5f597 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ffff40816db in start_thread (arg=0x7fffc77fe700) at pthread_create.c:463
        pd = 0x7fffc77fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736540436224, 6397803397717067487, 140736540434240, 0, 93824996248704, 140737488342464, -6397892459191957793, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffc7fff700 (LWP 12069)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555845b18) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffc7ffecf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 32, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 16
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555555845ac8, cond=0x555555845af0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffc7ffecf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 32, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 16
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x555555845af0, mutex=0x555555845ac8) at pthread_cond_wait.c:655
#3  0x00007fffcef5f9ab in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fffcef5f597 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ffff40816db in start_thread (arg=0x7fffc7fff700) at pthread_create.c:463
        pd = 0x7fffc7fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736548828928, 6397803397717067487, 140736548826944, 0, 93824997512160, 140737488342464, -6397891359143459105, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffccf4f700 (LWP 12068)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555845b18) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffccf4ecf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 30, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 15
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555555845ac8, cond=0x555555845af0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffccf4ecf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 30, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 15
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x555555845af0, mutex=0x555555845ac8) at pthread_cond_wait.c:655
#3  0x00007fffcef5f9ab in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fffcef5f597 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ffff40816db in start_thread (arg=0x7fffccf4f700) at pthread_create.c:463
        pd = 0x7fffccf4f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736631994112, 6397803397717067487, 140736631992128, 0, 93824997486560, 140737488342464, -6397915625708681505, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fffcd750700 (LWP 12067)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555845b1c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffcd74fcf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 35, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 17
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555555845ac8, cond=0x555555845af0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffcd74fcf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 35, cond = 0x555555845af0, mutex = 0x555555845ac8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 17
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x555555845af0, mutex=0x555555845ac8) at pthread_cond_wait.c:655
#3  0x00007fffcef5f9ab in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fffcef5f597 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ffff40816db in start_thread (arg=0x7fffcd750700) at pthread_create.c:463
        pd = 0x7fffcd750700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736640386816, 6397803397717067487, 140736640384832, 0, 93824996034496, 140737488342464, -6397914525660182817, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffdd8e7700 (LWP 12065)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x7fffd4010110, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff0d265c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff0d266dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff66831cc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fffd4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x7fffd4000b40
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#4  0x00007ffff662621a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffdd8e6db0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
        d = 0x7fffd4002c00
        locker = {val = 93824995699400}
        ref = {d = 0x7fffd4002c00, locker = @0x7fffdd8e6d40, exceptionCaught = true}
#5  0x00007ffff643c844 in QThread::exec() (this=this@entry=0x7fffedc1bda0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:547
        d = 0x5555558a2a70
        locker = {val = 93824995699400}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6b781e8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffd4002c00}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff683cf20 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff683cec0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6625f40 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#6  0x00007fffed9a6fd5 in QDBusConnectionManager::run() (this=0x7fffedc1bda0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#7  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x7fffedc1bda0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
        thr = 0x7fffedc1bda0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>
        data = 0x5555557d5180
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x7fffedc1bda0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>, __do_it = 1, __cancel_type = <optimized out>}
#8  0x00007ffff40816db in start_thread (arg=0x7fffdd8e7700) at pthread_create.c:463
        pd = 0x7fffdd8e7700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736910489344, 6397803397717067487, 140736910487360, 0, 140737182285216, 140737488346208, -6397878564435884321, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#9  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffdf384700 (LWP 12064)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x5555558753c0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff0d265c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff0d26962 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe82c1276 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffff0d4e175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff40816db in start_thread (arg=0x7fffdf384700) at pthread_create.c:463
        pd = 0x7fffdf384700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736938395392, 6397803397717067487, 140736938393408, 0, 93824995054832, 140737488341856, -6397875387770698017, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffdfb85700 (LWP 12063)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x5555558651c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff0d265c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff0d266dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff0d26721 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffff0d4e175 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffff40816db in start_thread (arg=0x7fffdfb85700) at pthread_create.c:463
        pd = 0x7fffdfb85700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736946788096, 6397803397717067487, 140736946786112, 0, 93824995054672, 140737488341472, -6397874287722199329, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fffea424700 (LWP 12062)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x7fffea423cc8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fffef0ac747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fffef0ae36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fffee17a7b0 in QXcbEventQueue::run() (this=0x555555782590) at qxcbeventqueue.cpp:228
        event = <optimized out>
        tail = 0x7fffee46d7f8 <QXcbEventQueue::qXcbEventNodeFactory(xcb_generic_event_t*)::qXcbNodePool+696>
        enqueueEvent = {__tail = <synthetic pointer><error reading variable>, __this = 0x555555782590}
#4  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x555555782590) at thread/qthread_unix.cpp:329
        thr = 0x555555782590
        data = 0x5555557776c0
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x555555782590, __do_it = 1, __cancel_type = <optimized out>}
#5  0x00007ffff40816db in start_thread (arg=0x7fffea424700) at pthread_create.c:463
        pd = 0x7fffea424700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737123600128, 6397803397717067487, 140737123598144, 0, 93824994518416, 140737488346240, -6397850562859727137, -6397793887809534241}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007ffff5b1971f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffff7fc77c0 (LWP 12058)):
#0  0x00007ffff5a36fb7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {0, 4633429960378286080, 140737488346288, 4636455816377925632, 4640959416005296128, 93824994520416, 93824996354288, 93824994696032, 0, 93824996354288, 93824996354288, 93824995197664, 140737488346880, 1, 5, 140737340991035}}
        pid = <optimized out>
        tid = <optimized out>
#1  0x00007ffff5a38921 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x7fffffffdf70, sa_sigaction = 0x7fffffffdf70}, sa_mask = {__val = {140737340945827, 93824996354288, 0, 140737488346784, 93824994622864, 345, 93824999724880, 0, 140737187832192, 0, 140737315449468, 506806141273, 18446744073709551615, 1365799601434, 140737488346816, 140737488347104}}, sa_flags = -8512, sa_restorer = 0x1000}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007ffff5a81967 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ffff5baeb0d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
        ap = {{gp_offset = 24, fp_offset = 0, overflow_arg_area = 0x7fffffffdff0, reg_save_area = 0x7fffffffdf80}}
        fd = <optimized out>
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#3  0x00007ffff5a889da in malloc_printerr (str=str@entry=0x7ffff5bacd08 "free(): invalid pointer") at malloc.c:5342
#4  0x00007ffff5a8ff0c in _int_free (have_lock=0, p=0x7fffa88bef30, av=0x7ffff5de3c40 <main_arena>) at malloc.c:4167
        fb = <optimized out>
        nextsize = <optimized out>
        nextinuse = <optimized out>
        prevsize = <optimized out>
        fwd = <optimized out>
        size = <optimized out>
        nextchunk = <optimized out>
        bck = <optimized out>
        ar_ptr = 0x7ffff5de3c40 <main_arena>
        p = 0x7fffa88bef30
        hook = <optimized out>
        mem = 0x7fffa88bef40
        hook = <optimized out>
#5  0x00007ffff5a8ff0c in __GI___libc_free (mem=0x7fffa88bef40) at malloc.c:3134
        ar_ptr = 0x7ffff5de3c40 <main_arena>
        p = 0x7fffa88bef30
        hook = <optimized out>
        mem = 0x7fffa88bef40
        hook = <optimized out>
#6  0x00007ffff734885f in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (flags=..., flags@entry=...) at kernel/qwindowsysteminterface.cpp:1178
        event = 0x7fffa88bef40
        nevents = 1
#7  0x00007fffee17b69a in xcbSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at qxcbeventdispatcher.cpp:105
        xcbEventSource = <optimized out>
        flags = {i = 36}
#8  0x00007ffff0d26417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007ffff0d26650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007ffff0d266dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007ffff66831cc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55555594d7a0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x5555558560f0
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#12 0x00007ffff662621a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffffffe280, flags=..., flags@entry=...) at kernel/qeventloop.cpp:232
        d = 0x555555c2a380
        locker = {val = 93824994462328}
        ref = {d = 0x555555c2a380, locker = @0x7fffffffe210, exceptionCaught = true}
#13 0x00007ffff662f1d3 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1371
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6b781e8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x555555c2a380}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff683cf20 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff683cec0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6625f40 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#14 0x00005555555555b8 in main(int, char**) (argc=1, argv=0x7fffffffe428) at ../CreateObjectTest/main.cpp:70
        app = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7ffff7b123f0 <vtable for QGuiApplication+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x555555774850}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff683d5c0 <qt_meta_stringdata_QCoreApplication>, data = 0x7ffff683d4a0 <qt_meta_data_QCoreApplication>, static_metacall = 0x7ffff66292d0 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffffffe300}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b78380 <QCoreApplication::staticMetaObject>}, stringdata = 0x7ffff77ed4e0 <qt_meta_stringdata_QGuiApplication>, data = 0x7ffff77ed260 <qt_meta_data_QGuiApplication>, static_metacall = 0x7ffff7365e80 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        engine = {<QQmlEngine> = {<QJSEngine> = {<QObject> = {_vptr.QObject = 0x7ffff71f2d68 <vtable for QQmlApplicationEngine+16>, static staticMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff68427e0 <qt_meta_stringdata_QObject>, data = 0x7ffff68426c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff665e390 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5555559576b0}, static staticQtMetaObject = {d = {superdata = {direct = 0x0}, stringdata = 0x7ffff6845780 <qt_meta_stringdata_Qt>, data = 0x7ffff6842900 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff6b6f9c0 <QObject::staticMetaObject>}, stringdata = 0x7ffff6f0fe40 <qt_meta_stringdata_QJSEngine>, data = 0x7ffff6f0fdc0 <qt_meta_data_QJSEngine>, static_metacall = 0x7ffff6c8e020 <QJSEngine::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_v4Engine = 0x55555594b400}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff71e9c00 <QJSEngine::staticMetaObject>}, stringdata = 0x7ffff6f22560 <qt_meta_stringdata_QQmlEngine>, data = 0x7ffff6f224a0 <qt_meta_data_QQmlEngine>, static_metacall = 0x7ffff6de3e20 <QQmlEngine::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = {direct = 0x7ffff71f12a0 <QQmlEngine::staticMetaObject>}, stringdata = 0x7ffff6f27b60 <qt_meta_stringdata_QQmlApplicationEngine>, data = 0x7ffff6f27a20 <qt_meta_data_QQmlApplicationEngine>, static_metacall = 0x7ffff6e62800 <QQmlApplicationEngine::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}