From owner-freebsd-stable@FreeBSD.ORG Wed Nov 28 02:36:18 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 960E55AA for ; Wed, 28 Nov 2012 02:36:18 +0000 (UTC) (envelope-from barney_cordoba@yahoo.com) Received: from nm17-vm1.bullet.mail.ne1.yahoo.com (nm17-vm1.bullet.mail.ne1.yahoo.com [98.138.91.34]) by mx1.freebsd.org (Postfix) with ESMTP id 3EFA38FC12 for ; Wed, 28 Nov 2012 02:36:18 +0000 (UTC) Received: from [98.138.226.177] by nm17.bullet.mail.ne1.yahoo.com with NNFMP; 28 Nov 2012 02:36:11 -0000 Received: from [98.138.89.233] by tm12.bullet.mail.ne1.yahoo.com with NNFMP; 28 Nov 2012 02:36:11 -0000 Received: from [127.0.0.1] by omp1048.mail.ne1.yahoo.com with NNFMP; 28 Nov 2012 02:36:11 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 895559.33340.bm@omp1048.mail.ne1.yahoo.com Received: (qmail 66141 invoked by uid 60001); 28 Nov 2012 02:36:11 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1354070171; bh=yWJ0q6LRo4+Mj1EZHNqY+2MIgUnP/Hz1kWT3fQdIYzQ=; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=tPUTM9PU3SUhMuJFHS6ZyU/TOqtv7UBlw7kAHs2dGtBBuTcM/WYHwtAJAcB+8Oy46ehwlmOdj6Hvk6dDWQcHlya9wMA6eFuH/6YT5SHhT3tCgDsn4m7ob0OupAjPi3V/ALIvjEqzWAd90Nte/FIZQN3e/z0C7quXYBmGb1Wyusw= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=dZQ2Kvk7od7dMuWIh5tdHjcr4vR5iMV9yPR09+R0zNPn+AhHRG9b6BOVvei6SBF6DVvKv1QHMlWhjuawk/51O6zXsEP373AMflwI1NR8ZiKZxOPcREGdW4ZLUbaCrIF6Xex83JsdBms5klTd2pB1jiubGmj/i1hX4eoq2GDpIBQ=; X-YMail-OSG: HMid_9YVM1mAsVo0g8ut3mj5pWob12YwQc1RIh8mhE.svZ1 OLs_V9MT4e9WBPaSDb6DEkMpzAWWXz94bB2eCBD7iAghcyp_JfrmgALrMS3Z C0Ap1Gjx1sfsrQqyjd4hya1ufXbBm.y3JVBKv5q.a9pGRbz6X5bef8b8hQe2 rClQtf8IKB8VTua6vQ0x8VViMd7f3TSIovFMsVltnqp5UipTOrGcf_JLuOrX NrkDeeH4ErT7sl5q2Brr3JW_D1MOVfLsGhivWf8v2gyrhx6kzacqTmVnvqW2 DzLc2nA1QjoCDrNElvoDU0bS.T3osNxzqAAzbLdhxyqILfsxxwURcWheKZ2z wHcfu6qX05x8bXmMQp5.7vk6Q00zK.MDY.ATO66a1yPYRbDYTaEjqxT_GKL4 fKBJ2LqMH5PWsNKkwN45DuvlxkHE.vvzKis3cLIeUFneTRmHqmrWEE1Tc9k_ xG_7m5wP5e2fr0L1fpxpPMx2EjuSeDgkJAXGcvcNDVC8lERU.Kn_F2P_uBk6 uDAoZd3Gf7cFX4KczlN9IAEMs5QkWYGhgDd7TRzeOnWgcIGmNfhx.EL0xEAv gD0aTbQON0TA7OuICm_OA5jO4 Received: from [174.48.128.27] by web121603.mail.ne1.yahoo.com via HTTP; Tue, 27 Nov 2012 18:36:11 PST X-Rocket-MIMEInfo: 001.001, CgotLS0gT24gVHVlLCAxMS8yNy8xMiwgWmFwaG9kIEJlZWJsZWJyb3ggPHpiZWVibGVAZ21haWwuY29tPiB3cm90ZToKCj4gRnJvbTogWmFwaG9kIEJlZWJsZWJyb3ggPHpiZWVibGVAZ21haWwuY29tPgo.IFN1YmplY3Q6IFJlOiA5LjEtUkMzIElHQiBkcm9wcGluZyBjb25uZWN0aW9ucy4KPiBUbzogIkFuZHJlIE9wcGVybWFubiIgPGFuZHJlQGZyZWVic2Qub3JnPgo.IENjOiAiRnJlZUJTRCBIYWNrZXJzIiA8ZnJlZWJzZC1oYWNrZXJzQGZyZWVic2Qub3JnPiwgIkZyZWVCU0QgU3RhYmxlIiA8ZnJlZWJzZC0BMAEBAQE- X-Mailer: YahooMailClassic/15.0.8 YahooMailWebService/0.8.127.475 Message-ID: <1354070171.39734.YahooMailClassic@web121603.mail.ne1.yahoo.com> Date: Tue, 27 Nov 2012 18:36:11 -0800 (PST) From: Barney Cordoba Subject: Re: 9.1-RC3 IGB dropping connections. To: Andre Oppermann , Zaphod Beeblebrox In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Cc: FreeBSD Hackers , FreeBSD Stable , FreeBSD Net X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Nov 2012 02:36:18 -0000 =0A=0A--- On Tue, 11/27/12, Zaphod Beeblebrox wrote:=0A= =0A> From: Zaphod Beeblebrox =0A> Subject: Re: 9.1-RC3 I= GB dropping connections.=0A> To: "Andre Oppermann" =0A> = Cc: "FreeBSD Hackers" , "FreeBSD Stable" , "FreeBSD Net" =0A> Date: = Tuesday, November 27, 2012, 7:04 PM=0A> To Jack Vogel's comment, this probl= em=0A> only seems to occur on systems=0A> that are exceedingly lightly load= ed (in this case, not yet=0A> in=0A> production and I'm the only one using = it).=0A> =0A> On Tue, Nov 27, 2012 at 6:21 PM, Andre Oppermann =0A> wrote:=0A> =0A> > r243570 in CURRENT should likely fix this iss= ue.=A0=0A> It's only 27 hours old=0A> > and hasn't been MFC'd yet.=0A> =0A>= I'm not sure this addresses what I'm seeing.=A0 It's a=0A> pause the the= =0A> traffic in the shell that is "fixed" by causing some traffic=0A> on th= e=0A> return channel (watching for the pause --- and then hitting=0A> enter= a=0A> few times seems to fix it).=A0 I'd expect that TCP=0A> retransmissio= n should=0A> take care of this regularly=A0 ... but in this case, it=0A> do= esn't... for=0A> whatever reason ...=0A=0AThe symptoms point to something h= aving to do with kicking=0Athe start/xmit queue. You might want to check th= e if_snd queues in=0Athe timer routine.=0A=0A=0A