From owner-freebsd-net@FreeBSD.ORG Mon Apr 7 09:14:31 2014 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 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E77464C9 for ; Mon, 7 Apr 2014 09:14:31 +0000 (UTC) Received: from mail-pa0-x229.google.com (mail-pa0-x229.google.com [IPv6:2607:f8b0:400e:c03::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id BEBD9FB4 for ; Mon, 7 Apr 2014 09:14:31 +0000 (UTC) Received: by mail-pa0-f41.google.com with SMTP id fa1so6507992pad.28 for ; Mon, 07 Apr 2014 02:14:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=3E/E4P3LsQilRbCi1qafTrC8X+srfrLh9hvgnowwYRo=; b=KkQx3efiDD6toF08IbFTsbuIL5Ad6P74V2qGFfRONZIsotZbOyAnfs0bnhkmBvDfcY 2AVGfLRni5c7ZdYPZOX/HeJhrzlodOCakpKi76bxVFvtZl2TGqIe1UAUTz4+sMou+Bxq He56cBFmo6XylHhsVeeQ7bgaRQbazeeOQ2GxpZTShlQlO1nozKHoeKjvEcKI/U4AoDnh ElV023tpemKDpC3gRPd3srrqLnq3fxrBrNnFoZg7HriXEs2RuCO8TWY33vei+AhL86n4 hhqxTgYB9RmnXyb0htPUTXQBr978pVuJRwFnOILbIwJ/q7+lLo4kxz+XltKXqEl9ilra GRVw== X-Received: by 10.68.196.226 with SMTP id ip2mr6610436pbc.106.1396862071382; Mon, 07 Apr 2014 02:14:31 -0700 (PDT) Received: from kmatoMacBook-Pro.local ([27.24.140.121]) by mx.google.com with ESMTPSA id ek2sm24046377pbd.30.2014.04.07.02.14.29 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 07 Apr 2014 02:14:30 -0700 (PDT) Message-ID: <53426C6F.5060609@gmail.com> Date: Mon, 07 Apr 2014 17:14:23 +0800 From: k simon User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: FreeBSD Net Subject: may some issue related to lo0 or socket Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Apr 2014 09:14:32 -0000 Hi,lists, I ran a forward squid instance and a haproxy instanse on one FreeBSD 9.1 box, it's works fine. When I upgraded it to 10-stable, I found I can't buffer videos normally unless I set "tcp_recv_bufsize" to a higher value, eg. 32768. The squid instance forward http request to the haproxy and accept the response from the haproxy via lo0. I think maybe there is some issue, I have tried upgraded the os to r264098 and disable lo0's csum, but it's not helped. How can I investigate the issue deeply ? Regards Simon