From owner-freebsd-current@freebsd.org Fri Apr 24 15:28:31 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2AAB72B8876; Fri, 24 Apr 2020 15:28:31 +0000 (UTC) (envelope-from tuexen@freebsd.org) Received: from drew.franken.de (drew.ipv6.franken.de [IPv6:2001:638:a02:a001:20e:cff:fe4a:feaa]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 497yk709ybz4Whf; Fri, 24 Apr 2020 15:28:30 +0000 (UTC) (envelope-from tuexen@freebsd.org) Received: from [IPv6:2a02:8109:1140:c3d:a14a:1380:47c6:2fe7] (unknown [IPv6:2a02:8109:1140:c3d:a14a:1380:47c6:2fe7]) (Authenticated sender: macmic) by drew.franken.de (Postfix) with ESMTPSA id 4FDC272230C06; Fri, 24 Apr 2020 17:28:28 +0200 (CEST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Subject: Re: How to enable tcp bbr in FreeBSD??? From: Michael Tuexen In-Reply-To: <20200424142341.GB17086@raichu> Date: Fri, 24 Apr 2020 17:28:27 +0200 Cc: Tom Jones , freebsd-transport@freebsd.org, freebsd-current@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <20200424141508.GB78595@tom-desk.erg.abdn.ac.uk> <20200424142341.GB17086@raichu> To: Mark Johnston X-Mailer: Apple Mail (2.3608.80.23.2.2) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Queue-Id: 497yk709ybz4Whf X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-1.86 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_HAM_MEDIUM(-0.92)[-0.924,0]; ASN(0.00)[asn:680, ipnet:2001:638::/32, country:DE]; NEURAL_HAM_LONG(-0.93)[-0.932,0] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Apr 2020 15:28:31 -0000 > On 24. Apr 2020, at 16:23, Mark Johnston 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"