From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 02 Apr 2008 23:58:06 +0200 (CEST) Received: from sj-iport-1.cisco.com ([171.71.176.70]:28993 "EHLO sj-iport-1.cisco.com") by lappi.linux-mips.net with ESMTP id S525971AbYDBV6B (ORCPT ); Wed, 2 Apr 2008 23:58:01 +0200 Received: from sj-dkim-1.cisco.com ([171.71.179.21]) by sj-iport-1.cisco.com with ESMTP; 02 Apr 2008 14:56:58 -0700 Received: from sj-core-1.cisco.com (sj-core-1.cisco.com [171.71.177.237]) by sj-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id m32Luwg2013460; Wed, 2 Apr 2008 14:56:58 -0700 Received: from cliff.cisco.com (cliff.cisco.com [171.69.11.141]) by sj-core-1.cisco.com (8.13.8/8.13.8) with ESMTP id m32LuwTf020080; Wed, 2 Apr 2008 21:56:58 GMT Received: from [127.0.0.1] ([64.100.150.211]) by cliff.cisco.com (8.6.12/8.6.5) with ESMTP id VAA16875; Wed, 2 Apr 2008 21:56:52 GMT Message-ID: <47F4011F.9020604@cisco.com> Date: Wed, 02 Apr 2008 14:56:47 -0700 From: David VomLehn User-Agent: Thunderbird 2.0.0.12 (Windows/20080213) MIME-Version: 1.0 To: "Jon Fraser [jfraser"@broadcom.com], linux-mips@linux-mips.org Illegal-Object: Syntax error in To: address found on lappi.linux-mips.net: To: "Jon Fraser [jfraser"@broadcom.com] ^-missing end of address Subject: Re: [PATCH 2.6.24][MIPS]Work in progress: fix HIGHMEM-enabled dcache flushing on 32-bit processor Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; l=1118; t=1207173418; x=1208037418; c=relaxed/simple; s=sjdkim1004; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=dvomlehn@cisco.com; z=From:=20David=20VomLehn=20 |Subject:=20Re=3A=20[PATCH=202.6.24][MIPS]Work=20in=20progr ess=3A=20fix=20HIGHMEM-enabled=20dcache=0A=20flushing=20on=2 032-bit=20processor |Sender:=20; bh=uOYvlErAfqKD8lrMpRH3pKnur3snz1z8iQ1zzvUcals=; b=LY4psVsAnXhwZ5irV2eOvLCprFnXsorilOAPUJqng7iRlw8wZkyqGzNdC2 EClFNI7A/vLQk111JTCcU9cBEjllmQa8mmYZiu4HEct1bdzU35/4YmS19YnO 6cZ5+43yqZaB6iCAZbwD2XTEwHKEHqWcPP7q3FX9zhsH46KktHxhw=; Authentication-Results: sj-dkim-1; header.From=dvomlehn@cisco.com; dkim=pass ( sig from cisco.com/sjdkim1004 verified; ); Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 18782 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: dvomlehn@cisco.com Precedence: bulk X-list: linux-mips > Did this fix your NFS problem? > > I'm working on discontiguous memory platforms as well. > > Jon Fraser > > On Wed, 2008-03-12 at 19:31 -0700, David VomLehn wrote: >> This patch is a work in progress, per Ralf's suggestion from last >> week. It is intended to fix dcache flushing issues when using HIGHMEM >> support. We get much better results with this patch applied, but I >> would not characterize our 2.6.24 port as stable, yet, so there may be other HIGHMEM-related issues. Yes, we are able to boot using NFS with this patch. There are some other minor changes that appear necessary for correct cache flushing but which don't seem to be causing any actual issues. (Cache stuff just works that way--you don't know you've got a problem until you get into some obscure corner case). I'll post these as soon as I can get to it. I can't say whether these are all the changes required for high memory support, but we sure get a lot farther when we use them... -- David VomLehn, dvomlehn@cisco.com The opinions expressed herein are likely mine, but might not be my employer's... From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sj-iport-1.cisco.com ([171.71.176.70]:28993 "EHLO sj-iport-1.cisco.com") by lappi.linux-mips.net with ESMTP id S525971AbYDBV6B (ORCPT ); Wed, 2 Apr 2008 23:58:01 +0200 Message-ID: <47F4011F.9020604@cisco.com> Date: Wed, 02 Apr 2008 14:56:47 -0700 From: David VomLehn MIME-Version: 1.0 Subject: Re: [PATCH 2.6.24][MIPS]Work in progress: fix HIGHMEM-enabled dcache flushing on 32-bit processor Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org To: "Jon Fraser [jfraser"@broadcom.com, linux-mips@linux-mips.org Message-ID: <20080402215647.GxlDtN2DvTQ85aZaeHzNggzH64JTn2ujdXyrDWUREgE@z> > Did this fix your NFS problem? > > I'm working on discontiguous memory platforms as well. > > Jon Fraser > > On Wed, 2008-03-12 at 19:31 -0700, David VomLehn wrote: >> This patch is a work in progress, per Ralf's suggestion from last >> week. It is intended to fix dcache flushing issues when using HIGHMEM >> support. We get much better results with this patch applied, but I >> would not characterize our 2.6.24 port as stable, yet, so there may be other HIGHMEM-related issues. Yes, we are able to boot using NFS with this patch. There are some other minor changes that appear necessary for correct cache flushing but which don't seem to be causing any actual issues. (Cache stuff just works that way--you don't know you've got a problem until you get into some obscure corner case). I'll post these as soon as I can get to it. I can't say whether these are all the changes required for high memory support, but we sure get a lot farther when we use them... -- David VomLehn, dvomlehn@cisco.com The opinions expressed herein are likely mine, but might not be my employer's...