Canvas crash when Coopeartive Strategy is enabled

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb1224b40 (LWP 20510)]
0xb6a294ce in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x4)
    at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:143
143             return d;
(gdb) bt
#0  0xb6a294ce in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x4)
    at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:143
#1  0xb6a7d293 in qGetPtrHelper<QScopedPointer<QObjectData> > (p=...)
    at ../../include/QtCore/../../src/corelib/global/qglobal.h:938
#2  0xb6a7d544 in QOpenGLContext::d_func (this=0x0)
    at ../../include/QtGui/../../src/gui/kernel/qopenglcontext.h:148
#3  0xb6a7bcf3 in QOpenGLContext::extensions (this=0x0) at kernel/qopenglcontext.cpp:722
#4  0xb7e247c3 in QQuickContext2DFBOTexture::doMultisampling (this=0x829ce40)
    at items/context2d/qquickcontext2dtexture.cpp:482
#5  0xb7e24de2 in QQuickContext2DFBOTexture::beginPainting (this=0x829ce40)
    at items/context2d/qquickcontext2dtexture.cpp:548
#6  0xb7e2351c in QQuickContext2DTexture::paintWithoutTiles (this=0x829ce40, ccb=0x829cde0)
    at items/context2d/qquickcontext2dtexture.cpp:210
#7  0xb7e23768 in QQuickContext2DTexture::paint (this=0x829ce40, ccb=0x829cde0)
    at items/context2d/qquickcontext2dtexture.cpp:250
#8  0xb7e15721 in QQuickContext2D::flush (this=0x829cb48) at items/context2d/qquickcontext2d.cpp:4176
#9  0xb7dfaaa0 in QQuickCanvasItem::updatePaintNode (this=0x8201ff8, oldNode=0x0)
    at items/context2d/qquickcanvasitem.cpp:710
#10 0xb7cf157d in QQuickWindowPrivate::updateDirtyNode (this=0x8260b80, item=0x8201ff8)
    at items/qquickwindow.cpp:2648
#11 0xb7cf05bd in QQuickWindowPrivate::updateDirtyNodes (this=0x8260b80) at items/qquickwindow.cpp:2473
#12 0xb7ce8cb9 in QQuickWindowPrivate::syncSceneGraph (this=0x8260b80) at items/qquickwindow.cpp:347
#13 0xb7cbe53c in QSGRenderThread::sync (this=0x82b5c68) at scenegraph/qsgthreadedrenderloop.cpp:545
#14 0xb7cbe6a9 in QSGRenderThread::syncAndRender (this=0x82b5c68) at scenegraph/qsgthreadedrenderloop.cpp:587
#15 0xb7cbecc3 in QSGRenderThread::run (this=0x82b5c68) at scenegraph/qsgthreadedrenderloop.cpp:704
#16 0xb640e7e7 in QThreadPrivate::start (arg=0x82b5c68) at thread/qthread_unix.cpp:345
#17 0xb5e68d78 in start_thread (arg=0xb1224b40) at pthread_create.c:311
#18 0xb616b01e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:131
(gdb) list
138         }
139     #endif
140
141         inline T *data() const
142         {
143             return d;
144         }
145
146         inline bool isNull() const
147         {