Date: Thu, 24 Nov 2011 23:06:22 +0100 From: Stefan Bethke <stb@lassitu.de> To: "freebsd-stable@freebsd.org List" <freebsd-stable@freebsd.org> Subject: Re: TCP Reassembly Issues Message-ID: <1A5B3A48-7DF3-4018-A244-152BDE96299A@lassitu.de> In-Reply-To: <CAPNZ-WrQdjFEErt6K1uEndSc082q8Q48VHvtbP=5cNXFw7H7Rg@mail.gmail.com> References: <CAPNZ-Wq38=F3o2hYuYF_unBj3SZQ52XhVhdcwQ8PE_vU9xc2YA@mail.gmail.com> <CABLqceRyohFFYtdnW%2Bt%2B63kwk00cbkJVz3oXWqrR=xijkg14CA@mail.gmail.com> <4ECE9914.6020502@turing.b2n.org> <CAPNZ-WrQdjFEErt6K1uEndSc082q8Q48VHvtbP=5cNXFw7H7Rg@mail.gmail.com>
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Am 24.11.2011 um 21:30 schrieb Kris Bauer: > On Thu, Nov 24, 2011 at 1:20 PM, Raul <raul@turing.b2n.org> wrote: >=20 > I am seeing the same sorts of things in netstat & vmstat: >=20 > # netstat -s -p tcp |grep mem > 742935 discarded due to memory problems >=20 > # vmstat -z |grep tcpreass > tcpreass: 40, 16464, 16340, 124, 131485,955443, 0 Same here: root@diesel:~# netstat -s -p tcp |grep mem 529211 discarded due to memory problems root@diesel:~# vmstat -z |grep tcpreass tcpreass: 40, 1680, 1679, 1, 118846,831450, = 0 root@diesel:~# uname -a FreeBSD diesel.lassitu.de 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #20: Fri = Nov 18 21:57:59 CET 2011 = root@diesel.lassitu.de:/usr/obj/usr/src/sys/DIESEL amd64 root@diesel:~# uptime 11:01PM up 5 days, 23:15, 1 user, load averages: 0.14, 0.04, 0.01 root@diesel:~# svn info /usr/src Path: /usr/src Working Copy Root Path: /usr/src URL: http://mirror.hanse.de/svn/freebsd/base/stable/9 Repository Root: http://mirror.hanse.de/svn/freebsd/base Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f Revision: 227665 Node Kind: directory Schedule: normal Last Changed Author: fabient Last Changed Rev: 227664 Last Changed Date: 2011-11-18 15:41:48 +0100 (Fri, 18 Nov 2011) I regularly copy large files off my Tivo trans-atlantic (125ms RTT), and = TCP connections currently stall after about 500 megs, never recovering. = I suspect this is connected, as it started immediately after upgrading = the machine to 9-stable. As far as I can tell, the problem does not exist with 8-stable. Stefan --=20 Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
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