[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Is: SKB_MAX_LEN bites again. Was: Re: bug disabling guest interface
On Sat, Mar 09, 2013 at 02:57:16AM +0000, Ian Campbell wrote: > > > - change MAX_SKB_FRAGS to 19 to accommodate all guests > > Changing MAX_SKB_FRAGS is *not* an option upstream. This might be a > useful local hack but we need to drop the idea as a long term fix. > > > Ugh. The negotiations between host and guest is probably the best > > choice. The issues you are going to hit are that you might need > > to redo the skbs to match what the frontend's max is. > > IMHO the right fix is for netback to coalesce as it copies from the > frontend if it needs to do so, it is copying anyway so it should be > cheap enough. I thought we had discussed this and someone was working on > implementing it. If not Annie then perhaps it was Matt or Siva (both now > CC'd) > As a short term fix, can we use skb_linearize() if skb->nr_frags >= MAX_SKB_FRAGS? Wei. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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