From owner-freebsd-stable@FreeBSD.ORG Tue Mar 30 15:57:51 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5914A106568A for ; Tue, 30 Mar 2010 15:57:51 +0000 (UTC) (envelope-from bra@fsn.hu) Received: from people.fsn.hu (people.fsn.hu [195.228.252.137]) by mx1.freebsd.org (Postfix) with ESMTP id 189F38FC17 for ; Tue, 30 Mar 2010 15:57:49 +0000 (UTC) Received: by people.fsn.hu (Postfix, from userid 1001) id 7E230247650; Tue, 30 Mar 2010 17:57:47 +0200 (CEST) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MF-ACE0E1EA [pR: 5.2461] X-CRM114-CacheID: sfid-20100330_17574_A761ED52 X-CRM114-Status: Good ( pR: 5.2461 ) Message-ID: <4BB21F79.5060807@fsn.hu> Date: Tue, 30 Mar 2010 17:57:45 +0200 From: Attila Nagy User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.23) Gecko/20090817 Thunderbird/2.0.0.23 Mnenhy/0.7.6.0 MIME-Version: 1.0 To: Jonathan Feally References: <4BAB718C.3090001@fsn.hu> <886B21E1787F0003B89E34B6@[192.168.1.44]> <4BB087B7.3030602@fsn.hu> <20100329183848.GE1473@michelle.cdnetworks.com> <4BB0FDC6.7050105@fsn.hu> <20100329194131.GG1473@michelle.cdnetworks.com> <4BB1CFD1.9040602@fsn.hu> <4BB21EA7.4080107@netvulture.com> In-Reply-To: <4BB21EA7.4080107@netvulture.com> X-Stationery: 0.4.10 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.1 X-Spambayes-Classification: ham; 0.00 X-DSPAM-Result: Whitelisted X-DSPAM-Processed: Tue Mar 30 17:57:47 2010 X-DSPAM-Confidence: 0.9929 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 4bb21f7b978751840297497 X-DSPAM-Factors: 27, X-Bogosity*Ham+tests=bogofilter, 0.00231, X-Bogosity*Ham, 0.00231, X-Spambayes-Classification*ham+0.00, 0.00262, X-Spambayes-Classification*0.00, 0.00262, X-CRM114-Status*Good+(, 0.00312, X-CRM114-Status*Good, 0.00312, X-Bogosity*spamicity=0.000000+version=1.2.1, 0.00361, X-Bogosity*tests=bogofilter+spamicity=0.000000, 0.00361, X-Bogosity*spamicity=0.000000, 0.00361, wrote, 0.00574, wrote, 0.00574, wrote+>, 0.00661, X-Spambayes-Classification*ham, 0.00813, I+remember, 0.01000, in+3, 0.01000, lock, 0.01000, I+guess, 0.01000, a+short, 0.01000, solved, 0.01000, X-Stationery*0.4.10, 0.01000, I've+had, 0.01000, >+I, 0.01000, see+if, 0.01000, guess, 0.01000, I+haven't, 0.01000, haven't, 0.01000, Well, 0.01000 Cc: pyunyh@gmail.com, Mailing List FreeBSD Stable , Michael Loftis Subject: Re: 8-STABLE freezes on UDP traffic (DNS), 7.x doesn't X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Mar 2010 15:57:51 -0000 Jonathan Feally wrote: > Attila Nagy wrote: >>>>>> Bingo, this solved the problem. The current uptime nears four days. >>>>>> Previously I couldn't go further than a day. >>>>>> >>>>>> The machine gets very light TCP load (and other machines which >>>>>> get work >>>>>> well), so I guess it's UDP RX or TX checksum related >>>>>> > I also have had my network go dead on a recent 8.0-STABLE on bge > system. Console is alive, but network just stops. I am running it as a > router with untagged on bge0 and nat of traffic on vlan201 tagged on > top of bge1. I haven't had it lock up in 3 days, but I will try the > -txcsum and -rxcsum on both interfaces to see if the problem still > persists or not. I do have a lot of tcp traffic, but there is also > unsolicited udp flying in as well. Well, it's a short time to judge from, but with rx,txcsum disabled, the machine froze nearly instantly (less than one hour of uptime), while with tso disabled, it still works. So for now I think tso causes the problems. BTW, now that we are talking about that, I remember that I've disabled it on a lot of machines previously, because I've had strange issues.