Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756268Ab1EMRxi (ORCPT ); Fri, 13 May 2011 13:53:38 -0400 Received: from mx1.netlogicmicro.com ([12.203.210.36]:3426 "EHLO orion5.netlogicmicro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751827Ab1EMRxh (ORCPT ); Fri, 13 May 2011 13:53:37 -0400 X-Greylist: delayed 1086 seconds by postgrey-1.27 at vger.kernel.org; Fri, 13 May 2011 13:53:37 EDT X-TM-IMSS-Message-ID: <5077a3850004c06e@netlogicmicro.com> Date: Fri, 13 May 2011 23:06:34 +0530 From: "Jayachandran C." To: Kevin Cernekee Cc: Ralf Baechle , David Daney , linux-mips@linux-mips.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/4] MIPS: Replace _PAGE_READ with _PAGE_NO_READ Message-ID: <20110513173633.GA14607@jayachandranc.netlogicmicro.com> References: <7aa38c32b7748a95e814e5bb0583f967@localhost> <20110513150707.GA26389@linux-mips.org> <20110513155605.GA30674@linux-mips.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-OriginalArrivalTime: 13 May 2011 17:35:35.0821 (UTC) FILETIME=[2AD313D0:01CC1194] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1534 Lines: 41 On Fri, May 13, 2011 at 09:55:21AM -0700, Kevin Cernekee wrote: > On Fri, May 13, 2011 at 8:56 AM, Ralf Baechle wrote: > > I'm not totally certain with my explanation but it seemed like a good > > working hypothesis. ?Jayachandran C. bisected this morning's linux-queue > > on his Netlogic XLR which is MIPS64 R1 and found this comment causing > > the problem. > > Jayachandran, could you please confirm/deny the following: > > Netlogic XLR is a MIPS64 R1 system. > > You are running a 32-bit kernel. > > You are using 64-bit physical addresses. > > You are not enabling RI/XI. > > The commit that caused the regression was "[PATCH 1/4] MIPS: Replace > _PAGE_READ with _PAGE_NO_READ" (not 2/4, 3/4, or 4/4). > > Do you have a log showing the failure, or any other details of what happened? Yes, it is a MIPS64R1 system with 64-bit (well 40bit) physical address, we don't have rixi either on hardware on in kernel overrides. git bisect pointed the specific patch. And with your patch it works only on 64 bit compile, 32 bit kernel fails on init with: |malloc: subst.c:521: assertion botched |free: called with already freed block argument For 32-bit the config is nlm_xlr_defconfig in the source tree. Let me know if you need any further info. Regards, JC. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/