Re: [PATCH] tcp: fix setting csum_start in tcp_gso_segment

From: Dave Jones <redacted>
Date: Wed, 25 Jun 2014 10:10:52 -0400

On Tue, Jun 24, 2014 at 09:17:25PM -0700, Linus Torvalds wrote:
 > On Tue, Jun 24, 2014 at 9:03 PM, Tom Herbert [off-list ref] wrote:
 > >
 > > It looks like a likely culprit is that SKB_GSO_CB()->csum_start is
 > > not set correctly when doing non-scatter gather. We are using
 > > offset as opposed to doffset.
 > >
 > > Reported-by: Dave Jones [off-list ref]
 > 
 > DaveJ, I think you triggered this in five minutes on your box, and I
 > don't recall seeing anybody else reporting the oops (and google
 > doesn't find anything in the last month). So it's presumably somewhat
 > hw-specific. Does this fix the problem?

It's survived routing ~1GB of packets overnight, so I'd call this good.

Tom, please adjust the Subject line as suggested by Eric Dumazet and add
a Tested-by: for Dave.

Thanks!