On Mon, Aug 01, 2011 at 04:55:54PM +0800, Liu Yuan wrote: > Nope, V1 completion thread doesn't has any mutex, thus can run > parallel with the vhost worker. It's true, it doesn't, but I think it's a bug :) It calls vhost_add_used which definitely needs the vq mutex. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html