git: 5d8fd932e418 - main - This brings into sync FreeBSD with the netflix versions of rack and bbr. This fixes several breakages (panics) since the tcp_lro code was committed that have been reported. Quite a few new features are now in rack (prefecting of DGP -- Dynamic Goodput Pacing among the largest). There is also support for ack-war prevention. Documents comming soon on rack..

[Michael Tuexen]

> On 7. May 2021, at 18:59, Gordon Bergling <gbe at FreeBSD.org> wrote:
> 
> On Fri, May 07, 2021 at 11:51:06AM -0500, Brandon Bergren wrote:
>> On Fri, May 7, 2021, at 11:30 AM, Michael Tuexen wrote:
>>>> On 7. May 2021, at 18:11, Warner Losh <imp at bsdimp.com> wrote:
>>>> 
>>>> Yea. If we can't enable it on powerpc, I have some ideas on how to keep these modules
>>>> from building when RATELIMIT isn't enabled.
>>> What is the problem on 32-bit PPC? Unfortunately, my G4 MacMini died 
>>> last year, but it
>>> is fine on 64-bit PPC. Can test it on a POWER9 system.
>> 
>> The powerpc LINT config explicitly disables RATELIMIT. I'm not sure why though, it looks like it was part of the conversion from automatically generated LINT to the manually curated one.
> 
> Besides LINT build issues, it would maybe a good idea to enable the build
> of the extra TCP stacks by default to get further adaption of them.
They are not build by default on purpose... That might change possibly for RACK in the future...
> 
> That could also minimize build problems.
Sure. But they have been sort of experimental up to now.

Best regards
Michael
> 
> --Gordon