From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 16 Aug 1999 22:34:56 +0200 (CEST) From: Andrea Arcangeli Subject: Re: [bigmem-patch] 4GB with Linux on IA32 In-Reply-To: <199908161843.LAA76017@google.engr.sgi.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Kanoj Sarcar Cc: torvalds@transmeta.com, sct@redhat.com, Gerhard.Wichert@pdb.siemens.de, Winfried.Gerhard@pdb.siemens.de, linux-kernel@vger.rutgers.edu, linux-mm@kvack.org List-ID: On Mon, 16 Aug 1999, Kanoj Sarcar wrote: >For example, driver and fs code which operate on user pages might >need to be changed. I hear that Stephen's rawio code made it into Yes. Or better I don't want to change the lowlevel blockdevice internals so I give to such code always regular pages to eat. >2.3.13, so would your patch work if a rawio request was made to >a range of user pages that were in bigmem area? Also, debuggers No idea about rawio (I have not yet read the rawio code). For debuggers I'll add a kmap to access_one_page in ptrace.c, thanks. >Basically, any code that does a pte_page and similar calls is suspect, >right? Yes it is. But only if such code can deal with anonymous or shm or vmalloced pages. Andrea -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://humbolt.geo.uu.nl/Linux-MM/