Date: Sun, 26 Dec 2021 19:31:14 +0100 From: Michael Tuexen <michael.tuexen@macmic.franken.de> To: Gleb Smirnoff <glebius@FreeBSD.org> Cc: "Alexander V. Chernikov" <melifaro@freebsd.org>, src-committers <src-committers@freebsd.org>, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: c2c8e360d8c0 - main - tcp: virtualise net.inet.tcp.msl sysctl. Message-ID: <59738A61-7697-4924-AD10-6C76410961D5@macmic.franken.de> In-Reply-To: <YciWVjLvg3pN0wPi@FreeBSD.org> References: <202112261506.1BQF64Cm080930@gitrepo.freebsd.org> <YciWVjLvg3pN0wPi@FreeBSD.org>
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> On 26. Dec 2021, at 17:20, Gleb Smirnoff <glebius@FreeBSD.org> wrote: >=20 > On Sun, Dec 26, 2021 at 03:06:04PM +0000, Alexander V. Chernikov = wrote: > A> commit c2c8e360d8c0b8712158d334686d88f052aef819 > A> Author: Alexander V. Chernikov <melifaro@FreeBSD.org> > A>=20 > A> tcp: virtualise net.inet.tcp.msl sysctl. > A> =20 > A> VNET teardown waits 2*MSL (60 seconds by default) before = expiring > A> tcp PCBs. These PCBs holds references to nexthops, which, in = turn, > A> reference ifnets. This chain results in VNET interfaces being = destroyed > A> and moved to default VNET only after 60 seconds. > A> Allow tcp_msl to be set in jail by virtualising = net.inet.tcp.msl sysctl, > A> permitting more predictable VNET tests outcomes. > A> =20 > A> MFC after: 1 week > A> Reviewed by: glebius > A> Differential Revision: https://reviews.freebsd.org/D33270 >=20 > Thanks! Does our test framework use some kind of boilerplate jail = config > so that we can enable smaller MSL for all tests at once? Or does it make more sende to use tcpdrop -s TIME_WAIT to clean up at = the end of the test? Best regards Michael >=20 > --=20 > Gleb Smirnoff
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