On Mon, 9 May 2011, Ming Lei wrote: > Hi, > > 2011/5/9 Oliver Neukum <oliver@xxxxxxxxxx>: > > > Do we really need to avoid it, or do we just need to recover? > > If avoidance is needed, should we use NAPI? > > IMO, OOM can recover it certainly but with much cost, so we should > avoid the case. I don't think NAPI can avoid it, because NAPI will > cause skb to be allocated without any limit if there are packets > coming, still no chance left for usbnet_bh to handle and free these > SKBs. How do other network drivers handle this problem? Can the same strategy be used? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
