On Fri, Jun 28, 2019 at 02:36:59PM +0200, Stefano Garzarella wrote:

This patch moves the flush of works after vdev->config->del_vqs(vdev),
because we need to be sure that no workers run before to free the
'vsock' object.

Since we stopped the workers using the [tx|rx|event]_run flags,
we are sure no one is accessing the device while we are calling
vdev->config->reset(vdev), so we can safely move the workers' flush.

What about send_pkt and loopback work?  How were they stopped safely?

For example, if send_pkt work executes then we're in trouble since it
accesses the tx virtqueue which is deleted by ->del_vqs().