From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 20 Aug 2001 19:22:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 20 Aug 2001 19:22:47 -0400 Received: from humbolt.nl.linux.org ([131.211.28.48]:23045 "EHLO humbolt.nl.linux.org") by vger.kernel.org with ESMTP id ; Mon, 20 Aug 2001 19:22:35 -0400 Content-Type: text/plain; charset=US-ASCII From: Daniel Phillips To: Marcelo Tosatti Subject: Re: 2.4.8/2.4.9 VM problems Date: Tue, 21 Aug 2001 01:29:11 +0200 X-Mailer: KMail [version 1.3.1] Cc: Mike Galbraith , Frank Dekervel , linux-kernel@vger.kernel.org In-Reply-To: In-Reply-To: MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <20010820232242Z16361-32385+84@humbolt.nl.linux.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On August 20, 2001 11:50 pm, Marcelo Tosatti wrote: > On Tue, 21 Aug 2001, Daniel Phillips wrote: > > If you've seen streaming IO pages getting evicted before being used, > > I'd like to know about it because something is broken in that case. > > I've seen the first page read by "swapin_readahead()" (which is the actual > page we want to swapin) be evicted _before_ we could actually use it (so > the read_swap_cache_async() call had to read the same page _again_ from > disk). It's not streaming IO, but whoops, is that even with yesterday's SetPageReferenced patch to do_swap_page? -- Daniel