From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 22 Jan 2004 18:26:17 -0800 From: William Lee Irwin III Subject: Re: Can a page be HighMem without having the HighMem flag set? Message-ID: <20040123022617.GY1016@holomorphy.com> References: <1074824487.12774.185.camel@laptop-linux> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1074824487.12774.185.camel@laptop-linux> Sender: owner-linux-mm@kvack.org Return-Path: To: Nigel Cunningham Cc: Linux Memory Management List-ID: On Fri, Jan 23, 2004 at 03:26:53PM +1300, Nigel Cunningham wrote: > I guess the subject says it all, but I'll give more detail: > I'm working on Suspend on a 8 cpu ("8 way"?) SMP box at OSDL, which has > something in excess of 4GB, but I'm only using 4 at the moment: > Warning only 4GB will be used. > Use a PAE enabled kernel. > 3200MB HIGHMEM available. > 896MB LOWMEM available. > When suspending, I am seeing pages that don't have the HighMem flag set, > but for which page_address returns zero. > I looked at kmap, and noticed that it tests for page < > highmem_start_page; I guess this is the way to do it? You have found a bug. Could you chase down the inconsistency please? -- wli -- 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: aart@kvack.org