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 head didn't apply any more. If you refer to shrinking both IPoIB and gso control buffer, as proposed by Roland in: http://marc.info/?l=linux-kernel&m=146787279825501&w=2 that will not work, since the gso control buffer is grown a bit since the first time the bug was detected. This patch does not have that sort of issue. > I am still travelling after netdev and would like to put an eye on the > patch and also see that @mellanox.com someone Not sure if that helps, but a 3rd party has already confirmed privately that this patch fixes the bug for them. Paolo