textureinthread: nouveau_fence.c:89: nouveau_fence_emit: Assertion `fence->state == 0' failed.

0	__GI_raise	raise.c	64	0x7ffff5698425	
1	__GI_abort	abort.c	91	0x7ffff569bb8b	
2	__assert_fail_base	assert.c	94	0x7ffff56910ee	
3	__GI___assert_fail	assert.c	103	0x7ffff5691192	
4	nouveau_fence_emit	/usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so		0x7fffec43e8e7	
5	??	/usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so		0x7fffec3e7376	
6	??	/usr/lib/x86_64-linux-gnu/dri/libgallium.so		0x7fffdf4f6c62	
7	glXSwapBuffers	/usr/lib/x86_64-linux-gnu/mesa/libGL.so.1		0x7ffff603a912	
8	QGLXContext::swapBuffers	qglxintegration.cpp	325	0x7ffff05df1e1	
9	QOpenGLContext::swapBuffers	qopenglcontext.cpp	857	0x7ffff6b69989	
10	QSGRenderThread::syncAndRender	qsgthreadedrenderloop.cpp	642	0x7ffff78fc6f8	
11	QSGRenderThread::run	qsgthreadedrenderloop.cpp	699	0x7ffff78fc96e	
12	QThreadPrivate::start	qthread_unix.cpp	338	0x7ffff6328d65	
13	start_thread	pthread_create.c	308	0x7ffff47c5e9a	
14	clone	clone.S	112	0x7ffff5755cbd	
15	??