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Date: Fri, 6 Feb 2009 10:52:23 +1100 From: Herbert Xu <herbert@...dor.apana.org.au> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: David Miller <davem@...emloft.net>, jeff.chua.linux@...il.com, rjw@...k.pl, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: commit 64ff3b938ec6782e6585a83d5459b98b0c3f6eb8 breaks rlogin On Thu, Feb 05, 2009 at 03:32:20PM -0800, Linus Torvalds wrote: > > Why is there even any discussion? > > URG is broken as a concept, no sane/modern use case exists. It's totally > uninteresting _except_ as a "legacy binary" issue, so > > - there's no point in trying to "improve" it. > > - even just a whiff of "breaks legacy app" just says "revert it". > > No? It's more complex than that. We'll need to do exactly this in the future in order to support IPv6 jumbograms because that's the only way to use the 16-bit urgent pointer in a packet bigger than 64K. It's also what RFC2675 (http://tools.ietf.org/html/rfc2675, section 5.2) prescribes. IPv6 jumbograms are absolutely required if we ever want to move beyond 10Gb/s Ethernet. But as we're still struggling with 10Gb/s Ethernet, I'm fine with a revert for now while we look for a fix for rlogin. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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