Thread 12 (Thread 0x7fffb3961700 (LWP 12384)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x555555b6fca4) 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 = 0x7fffb3960c90, __canceltype = 1434796032, __prev = 0x0}
        cbuffer = {wseq = 27, cond = 0x555555b6fc78, mutex = 0x555555b6fc50, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 13
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x555555b6fc50, cond=0x555555b6fc78) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffb3960c90, __canceltype = 1434796032, __prev = 0x0}
        cbuffer = {wseq = 27, cond = 0x555555b6fc78, mutex = 0x555555b6fc50, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 13
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x555555b6fc78, mutex=0x555555b6fc50) at pthread_cond_wait.c:655
#3  0x00007ffff6444613 in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x555555b6fc50) at thread/qwaitcondition_unix.cpp:146
        code = <optimized out>
#4  0x00007ffff6444613 in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x555555848908, mutex=mutex@entry=0x555555848900, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007ffff4acd47d in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x5555558488f8) at scenegraph/qsgthreadedrenderloop.cpp:257
        e = 0x0
#6  0x00007ffff4acd47d in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x555555848860) at scenegraph/qsgthreadedrenderloop.cpp:936
        e = 0x0
#7  0x00007ffff4acd8e3 in QSGRenderThread::run() (this=0x555555848860) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x555555848860) at thread/qthread_unix.cpp:329
        thr = 0x555555848860
        data = 0x555555c70540
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x555555848860, __do_it = 1, __cancel_type = <optimized out>}
#9  0x00007ffff40816db in start_thread (arg=0x7fffb3961700) at pthread_create.c:463
        pd = 0x7fffb3961700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736206345984, 5345461914516722659, 140736206344000, 0, 93824995330144, 140737488346352, -5345347907272436765, -5345476602473868317}, 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 12383)):
#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 = 93824996050040}
        ref = {d = 0x7fffac00c880, locker = @0x7fffc5988cf0, exceptionCaught = true}
#5  0x00007ffff643c844 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:547
        d = 0x5555558f8420
        locker = {val = 93824996050040}
        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=0x5555559127e8) at thread/qthread_unix.cpp:329
        thr = 0x5555559127e8
        data = 0x5555559265e0
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x5555559127e8, __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, 5345461914516722659, 140736508497728, 0, 93824996157416, 140737488347552, -5345369807310679069, -5345476602473868317}, 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 12382)):
#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 = 93824996093160}
        ref = {d = 0x7fffb8002a00, locker = @0x7fffc6ffcd50, exceptionCaught = true}
#5  0x00007ffff643c844 in QThread::exec() (this=this@entry=0x5555558a8820) at thread/qthread.cpp:547
        d = 0x555555902c90
        locker = {val = 93824996093160}
        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=0x5555558a8820) at qml/ftw/qqmlthread.cpp:155
#7  0x00007ffff643db35 in QThreadPrivate::start(void*) (arg=0x5555558a8820) at thread/qthread_unix.cpp:329
        thr = 0x5555558a8820
        data = 0x555555913fa0
        __clframe = {__cancel_routine = 0x7ffff643cfa0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x5555558a8820, __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, 5345461914516722659, 140736532041536, 0, 93824995723296, 140737488347536, -5345376153124858909, -5345476602473868317}, 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 12381)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55555582cf1c) 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 = 23, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 11
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55555582cec8, cond=0x55555582cef0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffc77fdcf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 23, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 11
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x55555582cef0, mutex=0x55555582cec8) 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, 5345461914516722659, 140736540434240, 0, 93824996417504, 140737488342464, -5345372855126846493, -5345476602473868317}, 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 12380)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55555582cf18) 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 = 20, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 10
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55555582cec8, cond=0x55555582cef0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffc7ffecf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 20, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 10
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x55555582cef0, mutex=0x55555582cec8) 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, 5345461914516722659, 140736548826944, 0, 93824996022880, 140737488342464, -5345373953027861533, -5345476602473868317}, 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 12379)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55555582cf1c) 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 = 25, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 12
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55555582cec8, cond=0x55555582cef0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffccf4ecf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 25, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 12
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x55555582cef0, mutex=0x55555582cec8) 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, 5345461914516722659, 140736631992128, 0, 93824997504992, 140737488342464, -5345354239127972893, -5345476602473868317}, 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 12378)):
#0  0x00007ffff4087ad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55555582cf18) 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 = 18, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 9
#1  0x00007ffff4087ad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55555582cec8, cond=0x55555582cef0) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7ffff4087770 <__condvar_cleanup_waiting>, __arg = 0x7fffcd74fcf0, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 18, cond = 0x55555582cef0, mutex = 0x55555582cec8, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = <optimized out>
        result = 0
        seq = 9
#2  0x00007ffff4087ad3 in __pthread_cond_wait (cond=0x55555582cef0, mutex=0x55555582cec8) 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, 5345461914516722659, 140736640384832, 0, 93824996245728, 140737488342464, -5345350941129960477, -5345476602473868317}, 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 12376)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x7fffd400ff40, 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 = 93824995698328}
        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 = 0x5555558a2640
        locker = {val = 93824995698328}
        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 = 0x5555557fdf80
        __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, 5345461914516722659, 140736910487360, 0, 140737182285216, 140737488346208, -5345387555189287965, -5345476602473868317}, 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 12375)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x555555874b10, 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, 5345461914516722659, 140736938393408, 0, 93824995050736, 140737488341856, -5345390976667610141, -5345476602473868317}, 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 12374)):
#0  0x00007ffff5b0ccb9 in __GI___poll (fds=0x555555864250, 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, 5345461914516722659, 140736946786112, 0, 93824995050576, 140737488341472, -5345392074568625181, -5345476602473868317}, 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 12373)):
#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 = 0x7fffee46db28 <QXcbEventQueue::qXcbEventNodeFactory(xcb_generic_event_t*)::qXcbNodePool+1512>
        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, 5345461914516722659, 140737123598144, 0, 93824994518416, 140737488346240, -5345436520500816925, -5345476602473868317}, 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 12369)):
#0  0x00007ffff5a36fb7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {0, 140737203850197, 140737488346444, 0, 8, 0, 93824996239952, 8, 140737018598448, 93824996239952, 93824996239952, 93824995377152, 140737488346880, 1, 2, 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, 93824996239952, 0, 140737488346784, 93824994622864, 3315714752826, 93824999645168, 140737353921328, 140737332618600, 140737488346960, 140737315449468, 140737488346784, 140737315398716, 93824994551184, 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=0x7ffff5bb0818 "double free or corruption (out)") at malloc.c:5342
#4  0x00007ffff5a8ff6a in _int_free (have_lock=0, p=0x555555c672c0, av=0x7ffff5de3c40 <main_arena>) at malloc.c:4308
        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 = 0x555555c672c0
        hook = <optimized out>
        mem = 0x555555c672d0
        hook = <optimized out>
#5  0x00007ffff5a8ff6a in __GI___libc_free (mem=0x555555c672d0) at malloc.c:3134
        ar_ptr = 0x7ffff5de3c40 <main_arena>
        p = 0x555555c672c0
        hook = <optimized out>
        mem = 0x555555c672d0
        hook = <optimized out>
#6  0x00007ffff734885f in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (flags=..., flags@entry=...) at kernel/qwindowsysteminterface.cpp:1178
        event = 0x555555c672d0
        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=0x55555594ac60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x555555854e10
        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 = 0x555555c27530
        locker = {val = 93824994462328}
        ref = {d = 0x555555c27530, 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 = 0x555555c27530}, 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 ../LoaderView3DTest/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 = 0x5555559387a0}, 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 = 0x555555948540}, 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}}}