From owner-freebsd-net@FreeBSD.ORG Sun Jun 7 09:31:42 2015 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 595E7538 for ; Sun, 7 Jun 2015 09:31:42 +0000 (UTC) (envelope-from bimmer@field.hu) Received: from green.field.hu (green.field.hu [217.20.130.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 11B4213C3 for ; Sun, 7 Jun 2015 09:31:41 +0000 (UTC) (envelope-from bimmer@field.hu) Received: from green.field.hu (localhost [127.0.0.1]) by green.field.hu (Postfix) with ESMTP id 28BEC250A78 for ; Sun, 7 Jun 2015 11:31:40 +0200 (CEST) X-Virus-Scanned: by Amavisd-new at field.hu Received: from green.field.hu ([127.0.0.1]) by green.field.hu (green.field.hu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hZWHZVzqragJ for ; Sun, 7 Jun 2015 11:31:37 +0200 (CEST) Received: from [192.168.52.11] (1F2EC6DD.catv.pool.telekom.hu [31.46.198.221]) by green.field.hu (Postfix) with ESMTPA id 9FA28250A64 for ; Sun, 7 Jun 2015 11:31:37 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=field.hu; s=mail; t=1433669497; bh=t7A/DFzW/RsmuXgj8jPBYCWE9LLUYlU4FLc0a6W9nnU=; h=Date:From:To:Subject:References:In-Reply-To; b=LnqKZy2z/QnlbEW9u1vG+5zTRWVZ0MiSSLyFKDGZYfuJJPk+opcwl9aLwpLitSS/m uBwFBV3MAwg2F0LTo9TehpO8KltJDNnw2wW72UhFnl615JG7xFAeEcv+xUXH/M3eCk O5LOCww6iFuXLKxBb+FPL9wQxE5uki3ifdS2etso= Message-ID: <55740F76.20301@field.hu> Date: Sun, 07 Jun 2015 11:31:34 +0200 From: Cs User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: freebsd-net@freebsd.org Subject: Re: FreeBSD 10.1-REL - network unaccessible after high traffic References: <2404899099-25362@alcyone.saas.tuxis.net> <5564308A.7010502@field.hu> <557405D3.2010909@field.hu> <20150607092154.GP20409@strugglingcoder.info> In-Reply-To: <20150607092154.GP20409@strugglingcoder.info> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Jun 2015 09:31:42 -0000 that's correct, disabling TSO didn't help however I did not disable vlanhwtso so it's my next step but I don't use vlans. I can access the server via IPMI checked the netstat no buffer problem there, no error in /var/log/messages just the ntpd no route to host caused by the network outage. about high traffic: during the night other server sent 10GB backup to this server via em0 interface. the problem is much more the transfer rate than the size of the file, but I can't reproduce it just wait to happen again. Cheers, Csaba 2015.06.07. 11:21 keltezéssel, hiren panchasara írta: > On 06/07/15 at 10:50P, Cs wrote: >> Hi All, >> >> It worked fine for two weeks but I had a network outage 2 days ago then >> today. Tried to disable rxcsum and txcsum after the first one, didn't >> help. Don't know what else to do it's a shame that I can't use this card >> with fbsd i REALLY don't want to install linux instead but my production >> servers outages are not welcomed by the customers.. > I tried to follow the thread but apologies if I've missed something. You > already tried disabling TSO but it didn't help, it seems. We need more > details here. > > Can you get on serial console and check if you see anything when network > becomes unaccessible? Anything in dmesg or /var/log/message? Does > 'netstat -m' show any buffer allocation failures when this happens? > > You seem to indicate that this only happens at 'high' traffic. How much > is that traffic? Is this something that you can trigger easily? > > Cheers, > Hiren