Date: Wed, 13 Oct 2004 18:10:40 -0700 From: Bruce M Simpson <bms@spc.org> To: Andrey Chernov <ache@nagual.pp.ru>, Kris Kennaway <kris@obsecurity.org>, Robert Watson <rwatson@FreeBSD.ORG>, Robert Huff <roberthuff@rcn.com>, current@FreeBSD.ORG Subject: Re: network slowness/freez-up since update 10/11 Message-ID: <20041014011040.GO718@empiric.icir.org> In-Reply-To: <20041014000822.GA30887@nagual.pp.ru> References: <16749.29947.220930.46409@jerusalem.litteratus.org> <Pine.NEB.3.96L.1041013162621.84384S-100000@fledge.watson.org> <20041013232318.GN718@empiric.icir.org> <20041013234411.GA29777@nagual.pp.ru> <20041013235816.GA35652@xor.obsecurity.org> <20041014000822.GA30887@nagual.pp.ru>
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--lQSB8Tqijvu1+4Ba Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Oct 14, 2004 at 04:08:23AM +0400, Andrey Chernov wrote: > > > Even with its locking mess it works perfectly in -current until late= =20 > > > August. > > You mean, until rwatson changed the default to debug.mpsafenet=3D1? :-) > Your guess is precisely right! :-) >=20 > (IMHO making such commit without testing major drivers such as if_de was= =20 > wrong step) To be fair, de(4) is quite tangled and complex compared to other network card drivers we have in the tree. As a result, it has had less maintenance than the other drivers. It's also for older hardware than dc(4) is able to support, or hardware which is more common on a non-tier-one platform such as FreeBSD/alpha. One solution I proposed (but haven't had time or hardware to follow up on) is that the tlp(4) driver be ported from NetBSD, which would be a better starting point for the locking work we need, as this driver supports dc(4) and de(4)'s target hardware, and uses busdma, etc. Bringing it under IFF_NEEDSGIANT is probably the right way to deal with it for now. Regards, BMS --lQSB8Tqijvu1+4Ba Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Comment: '' iD8DBQFBbdIPueUpAYYNtTsRAnXPAKCoTAZQ8IOEi/3WRtW10WBvi11JQQCfXvDi Y6gYywb/EaXm8nLhvI05Vh0= =3jVO -----END PGP SIGNATURE----- --lQSB8Tqijvu1+4Ba--
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