From owner-svn-src-all@FreeBSD.ORG Wed Aug 12 21:45:49 2009 Return-Path: Delivered-To: svn-src-all@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BE36F1065675; Wed, 12 Aug 2009 21:45:49 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (delphij-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id 5EB158FC4E; Wed, 12 Aug 2009 21:45:49 +0000 (UTC) Received: from tarsier.geekcn.org (tarsier.geekcn.org [211.166.10.233]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id A39ED5C025; Thu, 13 Aug 2009 05:45:48 +0800 (CST) Received: from localhost (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id 66F1255CDC2A; Thu, 13 Aug 2009 05:45:48 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by localhost (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with ESMTP id FftGxEKzL56N; Thu, 13 Aug 2009 05:44:54 +0800 (CST) Received: from charlie.delphij.net (adsl-76-237-33-62.dsl.pltn13.sbcglobal.net [76.237.33.62]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 959DC55CDC1F; Thu, 13 Aug 2009 05:44:47 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=N703mPS20uIA7FsT4U5TLNU+sPz0iPcmpTSdeI6Age7Txo+w0zPDoyjPOWv3qEFcJ 7hm28Mtwe2SnEJuBQ5rEw== Message-ID: <4A8337BD.3010700@delphij.net> Date: Wed, 12 Aug 2009 14:44:29 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.22 (X11/20090803) MIME-Version: 1.0 To: Stanislav Sedov References: <200902271925.n1RJP699080658@svn.freebsd.org> <20090721145559.d2cf3f0b.stas@FreeBSD.org> <4A7AFFC4.5050607@tomjudge.com> <20090812234935.84e5ac74.stas@FreeBSD.org> In-Reply-To: <20090812234935.84e5ac74.stas@FreeBSD.org> X-Enigmail-Version: 0.96.0 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Tom Judge , svn-src-head@FreeBSD.ORG, svn-src-all@FreeBSD.ORG, src-committers@FreeBSD.ORG, David Christensen Subject: Re: svn commit: r189117 - head/sys/dev/bce X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2009 21:45:50 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Stanislav, Stanislav Sedov wrote: > On Thu, 06 Aug 2009 11:07:32 -0500 > Tom Judge mentioned: > >> I can confirm that we are also seeing this problem on a number of Dell >> PE2950 systems running the bce driver from 7.2, the bug is more >> visible/producible on systems that are using Jumbo Frames (in our case 8Kb). >> >> The symptoms of this are an increase in the requests for jumbo clusters >> denied counter at 9k, and then random network stalls which sometimes >> recover on there own and others require a reboot. >> >> We have backed this change and so far it seems to have fixed the issue. >> > > David, > > are you OK with reverting this patch? I submitted the patch to re@ for > review, and I can commit it if you don't mind doing so. :-) I think there was some motivation supporting the SPLIT_HEADER disable in the past (IIRC it was for reliability or data corruption), but I think I have lost the mail archive (at least I couldn't find it at this moment :-/ I'm not very sure if that was fixed by my busdma_sync fix, though, can anyone confirm that? Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkqDN70ACgkQi+vbBBjt66CfiwCeIpYBDxMXZPhW6gLhdXdBYgj4 uIIAoIRnUkEs0n1xTRJb0JzryxR6poD+ =Iuis -----END PGP SIGNATURE-----