From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id 9A2676B01AD for ; Fri, 4 Jun 2010 08:35:32 -0400 (EDT) Received: by pwi6 with SMTP id 6so129484pwi.14 for ; Fri, 04 Jun 2010 05:35:31 -0700 (PDT) Date: Fri, 4 Jun 2010 21:35:24 +0900 From: Minchan Kim Subject: Re: 4-Kb page-size for kernel in ARM-Cortex Message-ID: <20100604123524.GB1879@barrios-desktop> References: <20100604123234.GA1879@barrios-desktop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100604123234.GA1879@barrios-desktop> Sender: owner-linux-mm@kvack.org To: Uma shankar Cc: linux-mm@kvack.org, linux-arm-kernel@lists.arm.linux.org.uk List-ID: My bad. wrong address. correct it. On Fri, Jun 04, 2010 at 09:32:34PM +0900, Minchan Kim wrote: > On Thu, Jun 03, 2010 at 08:13:35PM +0530, Uma shankar wrote: > > Hi, > > > > It is my understanding that in ARM, the MMU setting for > > kernel VA range ( 0xc0000000 onwards ) > > is set up using the section-sized mapping ( 1 Mb in size ) , as this > > range maps to a contiguous physical address range. > > > > I am trying out a memory-checking tool on Cortex. This tool has the > > requirement that it needs to be able to set up PTE for each 4 Kb > > range of kernel address. > > > > So, paging_init ( arch/arm/mm/mmu.c ) is modified for this. > > > > But , with this MMU setting, the kernel hangs somewhere after > > freeing init memory. ( "freeing init mem" is the last print I see on > > console. ) > > > > For 3-level page-table setting of kernel VA, do I have to change > > something else also ? > > It's related to arm architecture. > Please, Cced linux-arm-kernel mailing list. > Maybe they can solve your problem. > > P.S) > Please send your patch with question, symptom more detail and oops > if you can get it. > > > > > > thanks > > > > -- > > To unsubscribe, send a message with 'unsubscribe linux-mm' in > > the body to majordomo@kvack.org. For more info on Linux MM, > > see: http://www.linux-mm.org/ . > > Don't email: email@kvack.org > > -- > Kind regards, > Minchan Kim -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org