From: Paolo Abeni
Date: Thu, 13 Oct 2016 18:26:56 +0200
> After the commit 9207f9d45b0a ("net: preserve IP control block
> during GSO segmentation"), the GSO CB and the IPoIB CB conflict.
> That destroy the IPoIB address information cached there,
> causing a severe performance regression, as bett
On Fri, 2016-10-14 at 13:23 +0300, Or Gerlitz wrote:
>
> Paolo,
>
> Is this fix backportable to any kernel since the breakage?
yes, AFAIK this is beck-portable.
> AFAIR,
> Roland mentioned
> that a 2nd change introduced in 4.7-rc1 changed things a bit more such
> that the fix
> he had in his h
On Thu, Oct 13, 2016 at 7:26 PM, Paolo Abeni wrote:
> After the commit 9207f9d45b0a ("net: preserve IP control block
> during GSO segmentation"), the GSO CB and the IPoIB CB conflict.
the commit --> commit (remove the word "the" to make the sentence a
bit more clear)
> That destroy the IPoIB add
After the commit 9207f9d45b0a ("net: preserve IP control block
during GSO segmentation"), the GSO CB and the IPoIB CB conflict.
That destroy the IPoIB address information cached there,
causing a severe performance regression, as better described here:
http://marc.info/?l=linux-kernel&m=14678727982
