Re: Data corruption issue with splice() on 2.6.27.10

[Herbert Xu]

On Wed, Jan 07, 2009 at 01:52:01PM +0100, Willy Tarreau wrote:
> 
> Evgeniy, I'd like to understand something related to our apparent lack of
> knowledge of when the data is effectively transmitted. If we're focusing
> on the send part, I can't understand why I never reproduce the corruption
> when the data source is a file or loopback, but I only see it when the source
> is an ethernet interface. How is it possible that a problem affecting only

It doesn't happen with a file because in that case you don't
start with an skb so there is no skb->head.  It probably doesn't
happen with loopback because loopback does GSO so again skb->head
does not exist (so to speak).

Cheers,
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