From owner-freebsd-stable@FreeBSD.ORG Wed Nov 7 10:16:06 2007 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 CF11316A41A for ; Wed, 7 Nov 2007 10:16:06 +0000 (UTC) (envelope-from is@rambler-co.ru) Received: from relay0.rambler.ru (relay0.rambler.ru [81.19.66.187]) by mx1.freebsd.org (Postfix) with ESMTP id 8CDC313C4CB for ; Wed, 7 Nov 2007 10:16:06 +0000 (UTC) (envelope-from is@rambler-co.ru) Received: from relay0.rambler.ru (localhost [127.0.0.1]) by relay0.rambler.ru (Postfix) with ESMTP id 875146D51; Wed, 7 Nov 2007 12:55:45 +0300 (MSK) Received: from localhost (is1.park.rambler.ru [81.19.64.121]) by relay0.rambler.ru (Postfix) with ESMTP id 653D36D43; Wed, 7 Nov 2007 12:55:45 +0300 (MSK) Date: Wed, 7 Nov 2007 12:55:24 +0300 From: Igor Sysoev To: jfvogel@gmail.com Message-ID: <20071107095524.GD908@rambler-co.ru> References: <20071012121545.GA78201@rambler-co.ru> <20071107091806.GA361@rambler-co.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <20071107091806.GA361@rambler-co.ru> User-Agent: Mutt/1.5.13 (2006-08-11) X-Virus-Scanned: No virus found Cc: freebsd-stable@freebsd.org Subject: Re: em driver 6.6.6 regression 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: Wed, 07 Nov 2007 10:16:06 -0000 On Wed, Nov 07, 2007 at 12:18:06PM +0300, Igor Sysoev wrote: > On Fri, Oct 12, 2007 at 04:15:46PM +0400, Igor Sysoev wrote: > > > Yesterday I have cvsup'ed FreeBSD on ThinkPad T42 to RELENG_6 > > "2007.10.10.23.59.59" and have noticed lags while playing mp3 and browsing. > > I have suspected new em driver, because there was no lags if wifi iwi0 > > was used instead of em0 for network. So I had downgraded the em driver > > separately to 6.2.9 version, have build a kernel loadable module, and have > > loaded it instead of the 6.6.6 module, and the lags have disappeared. > > > > The lags appeares only if browser (Firefox, Opera) does several requests: > > main page, js, images. There are no lags if browser reload simple page. > > Also, I could not reproduce lags by other network traffic: pings, ssh, scp, > > downloading files. There are no lags if I compile and so on. > > > > Some additional info: > > > > The shared irq11 is used by pcm0, em0, iwi0, CardBus, USB, and acpi_video0. > > > > em0@pci2:1:0: class=0x020000 card=0x05491014 chip=0x101e8086 rev=0x03 hdr=0x00 > > vendor = 'Intel Corporation' > > device = '82540EP Gigabit Ethernet Controller (Mobile)' > > I just cvsup'ed to the new em 6.7.2 version without FAST interrupt and > lags in sound and USB mouse has gone. Thank you. However, if I define EM_FAST_IRQ, then lags appear again. -- Igor Sysoev http://sysoev.ru/en/