From: Wei Liu <[email protected]> Date: Fri, 1 Aug 2014 12:02:46 +0100
> On Thu, Jul 31, 2014 at 01:25:20PM -0700, David Miller wrote: >> If you were to have a 64-slot TX queue, you ought to be able to handle >> this theoretical 51 slot SKB. > > There's two problems: > 1. IIRC a single page ring has 256 slots, allowing 64 slots packet > yields 4 in-flight packets in worst case. > 2. Older netback could not handle this large number of slots and it's > likely to deem the frontend malicious. > > For #1, we don't actually care that much if guest screws itself by > generating 64 slot packets. #2 is more concerning. How many slots can the older netback handle? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
