Re: Request for Testing: TCP RACK

On Thu, 04 Jan 2024 11:40:35 +0100, "Herbert J. Skuhra" wrote:
> 
> On Fri, 17 Nov 2023 14:31:02 +0100, "Herbert J. Skuhra" wrote:
> > 
> > Hi,
> > 
> > On Fri, 17 Nov 2023 00:15:13 +0100, tuexen@freebsd.org wrote:
> > > 
> > > > On Nov 16, 2023, at 20:06, Herbert J. Skuhra <herbert@gojira.at> wrote:
> > > > 
> > > > On Thu, 16 Nov 2023 19:07:29 +0100, Olivier Cochard-Labbé wrote:
> > > >> 
> > > >> On Thu, Nov 16, 2023 at 5:10 PM Herbert J. Skuhra <herbert@gojira.at> wrote:
> > > >> 
> > > >>> 
> > > >>> OK, I am now running GENERIC-NODEBUG + "options TCPHPTS".
> > > >>> 
> > > >>> After setting "sysctl net.inet.tcp.functions_default=rack" git no
> > > >>> longer works:
> > > >>> 
> > > >>> 
> > > >> Are you using a fresh 15 head or a specific network setup ?
> > > >> 
> > > >> Because I'm not able to reproduce your problem on my system:
> > > >> 
> > > >> $ uname -a
> > > >> FreeBSD bigone 15.0-CURRENT FreeBSD 15.0-CURRENT #0
> > > >> main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
> > > >> root@bigone:/usr/obj/usr/src/amd64.amd64/sys/TCPHPTS
> > > >> amd64
> > > >> $ cat /usr/src/sys/amd64/conf/TCPHPTS
> > > >> include GENERIC-NODEBUG
> > > >> ident                   TCPHPTS
> > > >> options                 TCPHPTS
> > > >> $ sysctl net.inet.tcp.functions_default
> > > >> net.inet.tcp.functions_default: rack
> > > >> $ git clone -q git@github.com:freebsd/freebsd-src.git && echo working
> > > >> working
> > > >> $
> > > > 
> > > > OK, (g)it works if I disable pf. Do you use pf?
> > > Can you share your pf config such that I can reproduce the problem locally?
> > 
> > 1. It even fails with a simple pf.conf:
> >    pass in all
> >    pass out all
> > 
> > 2. Fetching port distfiles also failed.
> > 
> > 3. If I disable rxcsum on the ethernet adapter (igb0) it works.
> 
> Disabling lro also resolves the issue.

If I run "sysctl net.inet.tcp.rack.features.cmpack=0" I don't have to
disable rxcsum/tcxsum or lro on igb0. 

--
Herbert