From owner-freebsd-stable@FreeBSD.ORG Mon Oct 29 20:34:25 2007 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2CF6316A419 for ; Mon, 29 Oct 2007 20:34:25 +0000 (UTC) (envelope-from goran.lowkrantz@ismobile.com) Received: from mail.ismobile.com (mail.ismobile.com [62.119.44.68]) by mx1.freebsd.org (Postfix) with ESMTP id D593213C4AC for ; Mon, 29 Oct 2007 20:34:24 +0000 (UTC) (envelope-from goran.lowkrantz@ismobile.com) Received: from mail.ismobile.com (localhost [127.0.0.1]) by mail.ismobile.com (Postfix) with ESMTP id 17B7A33C05; Mon, 29 Oct 2007 08:37:42 +0100 (CET) DKIM-Signature: v=0.5; a=rsa-sha1; c=relaxed; d=ismobile.com; h=received:date:from:to:subject:message-id:in-reply-to:references:x-mailer:mime-version:content-type:content-transfer-encoding:content-disposition; q=dns/txt; s=selector1; bh=tdrjBMscOsMhx8GnnaRLDOjbSoM=; b=pIAPF1zr5TuGd45Bk1gtZEJk7SvhU2/y9euB6Mnkik153vRPvDWYE0lbskihWaqZKqmag9vjliGD0s/UdbTgRloyEhAnrdpjgxr9nuGSRvzO8vP+eEEW5u5SHhEqTdSESZwlbPRN++nKeu0e7aJTpJHgIrWni2LvJoE3wl8SvJk= Received: from [172.16.2.192] (viglaf.hq.ismobile.com [172.16.2.192]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.ismobile.com (Postfix) with ESMTP id 0253433C04; Mon, 29 Oct 2007 08:37:42 +0100 (CET) Date: Mon, 29 Oct 2007 08:37:41 +0100 From: Goran Lowkrantz To: Brian Behlendorf , stable@freebsd.org Message-ID: In-Reply-To: <20071028235824.M54656@taz3> References: <200710282222.QAA01991@lariat.net> <20071028152700.T98576@taz3> <20071028235824.M54656@taz3> X-Mailer: Mulberry/4.0.8 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Cc: Subject: Re: MFC requests for 6.3 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: Mon, 29 Oct 2007 20:34:25 -0000 wrote: > On Mon, 29 Oct 2007, Goran Lowkrantz wrote: >>> On Sun, 28 Oct 2007, Brett Glass wrote: >>>> I would like to request that some useful work on networking be MFCed >>>> from -CURRENT to -STABLE in time for the release of FreeBSD 6.3. >>> >>> The thing that's worried me, following only stable@freebsd.org traffic, >>> were the reports about the new em driver (6.6.6?) causing hangs and >>> other problems with people who have been updating RELENG_6 - have those >>> who had those problems seen their issues resolved? I've got remote >>> boxes using em that I can't risk making inaccessible and can't test >>> locally. >> >> All my problems with watchdog timeouts and em 6.6.6 occurred when em >> shared interrupt with USB but I don't know if it's MB, em or usb that's >> the problem. Removing USB from the kernel or switching to polling and >> the driver works just fine. >> >> The fact that one of my test machines didn't have any problems was >> because it had no USB in it's kernel. I had removed USB as I had >> problems with watchdog timeouts with the bge driver when I first >> upgraded to the D915GAV MB ages ago. The bge also shared interrupt with >> USB. > > Thanks. /var/run/dmesg.boot says my em0 and em1 don't share an IRQ with > USB or anyone else, so sounds like I'm in the clear, yay. But it still > seems like something the vendor (Intel?) should be looking into before a > another release on RELENG_6 is cut - even if USB is the culprit, it > sounded like the problems started for em users when the driver was > updated from 6.2.9 to 6.6.6. > Yes, that's correct. But then 6.6.6 is faster, so it may be that we have a timing problem in any driver when they share interrupt with a Gigant locked driver. Isn't there a new non-Gigant USB driver that is waiting for testers? I have two workstations with em that needs usb that I could test the combination on. /glz