From owner-svn-src-all@FreeBSD.ORG Wed Aug 12 22:58:32 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 64955106566B; Wed, 12 Aug 2009 22:58:32 +0000 (UTC) (envelope-from pyunyh@gmail.com) Received: from qw-out-2122.google.com (qw-out-2122.google.com [74.125.92.26]) by mx1.freebsd.org (Postfix) with ESMTP id B11788FC52; Wed, 12 Aug 2009 22:58:31 +0000 (UTC) Received: by qw-out-2122.google.com with SMTP id 3so138994qwe.7 for ; Wed, 12 Aug 2009 15:58:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:from:date:to:cc :subject:message-id:reply-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=KrmsiKZLV5AeyOhKwbI75MLSNr5YG9va+s/w2KKG5Q8=; b=KbjVdWd5NdIR60AMAxBETD//coFLX2xhtqhKbmE4X6t8niB7VahwtnAXJwJqe3YwZD /Mj/IezTqBvJ3eI8xC+qt2cIN0KBOCIh+rfxpWFVKZ7Wfql6DYGt76YcCqXe7yUo/OdL UcfDEKI+3s0vEbUy4QitcPLcha5XsYCsXkoVw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:date:to:cc:subject:message-id:reply-to:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=qGl4OqG6VlU+/fVXgwFvU3LLpi5ozdxVqeFzRm3TFgzTVRbMEqOnREo/B8VX8DXlrp 34vOeSO+T+FJ+275FJSepYURTbgZFnX7vzBtWEyXQBNUhlbDLVuG60t1Jmh/gBYKDtHs DpCHPh6ItfGYqVAP1YaNwBh8v7+8cCG/0QGSM= Received: by 10.224.32.7 with SMTP id a7mr704517qad.308.1250117910896; Wed, 12 Aug 2009 15:58:30 -0700 (PDT) Received: from pyunyh@gmail.com ([174.35.1.224]) by mx.google.com with ESMTPS id 2sm3248650qwi.33.2009.08.12.15.58.28 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 12 Aug 2009 15:58:30 -0700 (PDT) Received: by pyunyh@gmail.com (sSMTP sendmail emulation); Wed, 12 Aug 2009 15:57:26 -0700 From: Pyun YongHyeon Date: Wed, 12 Aug 2009 15:57:26 -0700 To: Xin LI Message-ID: <20090812225726.GI55129@michelle.cdnetworks.com> References: <200902271925.n1RJP699080658@svn.freebsd.org> <20090721145559.d2cf3f0b.stas@FreeBSD.org> <4A7AFFC4.5050607@tomjudge.com> <20090812234935.84e5ac74.stas@FreeBSD.org> <4A8337BD.3010700@delphij.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A8337BD.3010700@delphij.net> User-Agent: Mutt/1.4.2.3i Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, David Christensen , Stanislav Sedov , svn-src-head@freebsd.org, Tom Judge 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: pyunyh@gmail.com 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 22:58:32 -0000 On Wed, Aug 12, 2009 at 02:44:29PM -0700, Xin LI wrote: > -----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? > Since I don't have bce(4) hardwares I can't confirm it. I think the busdma_sync fix would be prerequisite condition to fix data corruption problem but I think it would not necessarily fix previous data corruption issue.