Date: Fri, 24 Apr 2020 17:28:27 +0200 From: Michael Tuexen <tuexen@freebsd.org> To: Mark Johnston <markj@FreeBSD.org> Cc: Tom Jones <thj@freebsd.org>, freebsd-transport@freebsd.org, freebsd-current@freebsd.org Subject: Re: How to enable tcp bbr in FreeBSD??? Message-ID: <FCB84CED-7B6E-417C-815F-8CF44BF14DB8@freebsd.org> In-Reply-To: <20200424142341.GB17086@raichu> References: <20200424141508.GB78595@tom-desk.erg.abdn.ac.uk> <20200424142341.GB17086@raichu>
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> On 24. Apr 2020, at 16:23, Mark Johnston <markj@FreeBSD.org> wrote: >=20 > On Fri, Apr 24, 2020 at 03:15:08PM +0100, Tom Jones wrote: >> rrs@freebsd.org >> Bcc:=20 >> Subject: Re: How to enable tcp bbr in FreeBSD??? >> Reply-To:=20 >> In-Reply-To: <6042155a-297b-d85e-1d64-24d93da329a2@gmail.com> >>=20 >>=20 >> ... snip ... >>>=20 >>> Maybe it is not ready for prime time, i do not know why it is not in = the >>> default build. >>> Maybe ask the committer. >>>=20 >>=20 >> I have added rrs@ in cc and the freebsd-transport list.=20 >>=20 >> Does anyone know if there are plans to enable alternate TCP stacks in >> generic?=20 >>=20 >> Is there a stability point we need to hit first? >=20 > There are a couple of open bugs found by syzkaller (complete with > reproducers) that appeared when I enabled the alternate TCP stacks: >=20 > = https://syzkaller.appspot.com/bug?id=3D986b4cecd84439df9794bda1a45d9cf0f50= 356fe > = https://syzkaller.appspot.com/bug?id=3D048f650e99696f881872a285cef0e3b9bd4= f4e25 >=20 > I'd expect these to be fixed before providing the alternate stacks in > GENERIC. We talked about these yesterday in the FreeBSD telco. At least some of = them are related to OOB data. The plan is to disable handling of OOB data in the = alternate stacks. Will bring up a patch and see if that fixes the issues. Best regards Michael > _______________________________________________ > freebsd-transport@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-transport > To unsubscribe, send any mail to = "freebsd-transport-unsubscribe@freebsd.org"
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