From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932293AbWGGXDU (ORCPT ); Fri, 7 Jul 2006 19:03:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932249AbWGGXDU (ORCPT ); Fri, 7 Jul 2006 19:03:20 -0400 Received: from smtp.osdl.org ([65.172.181.4]:28333 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S932293AbWGGXDT (ORCPT ); Fri, 7 Jul 2006 19:03:19 -0400 Date: Fri, 7 Jul 2006 16:06:50 -0700 From: Andrew Morton To: Martin Bligh Cc: reuben-lkml@reub.net, linux-kernel@vger.kernel.org Subject: Re: 2.6.17-mm6 Message-Id: <20060707160650.44543c3a.akpm@osdl.org> In-Reply-To: <44AED530.8040802@mbligh.org> References: <20060703030355.420c7155.akpm@osdl.org> <44AE268F.7080409@reub.net> <20060707023518.f621bcf2.akpm@osdl.org> <44AECEDD.201@reub.net> <20060707143854.4a8fd106.akpm@osdl.org> <44AED530.8040802@mbligh.org> X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; i386-vine-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Martin Bligh wrote: > > > > Yikes! Until we fix that there's no point in looking at anything else. > > > > CONFIG_DEBUG_PAGEALLOC would nail this bug in a flash, but x86_64 doesn't > > implement the damn thing :( > > I have an implementation, but there's some bug in it I never fixed. If > you want it, I'll update it and send it out ... maybe you can spot the > bug ;-( > My bug-spotting rate doesn't seem so good lately. But if the thing doesn't break the kernel when configged off then sure, let's put it in -mm with a big doesnt-work-yet warning on it and hopefully some clever person like Chuck will come along and fix it. That being said, we don't seem to be getting a lot of value from DEBUG_PAGEALLOC any more. I guess we fixed a pile of long-standing problems when it first went in and the reintroduction rate is low.