From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266423AbTGES6s (ORCPT ); Sat, 5 Jul 2003 14:58:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266429AbTGES6s (ORCPT ); Sat, 5 Jul 2003 14:58:48 -0400 Received: from air-2.osdl.org ([65.172.181.6]:56024 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S266423AbTGES6r (ORCPT ); Sat, 5 Jul 2003 14:58:47 -0400 Date: Sat, 5 Jul 2003 12:14:16 -0700 From: Andrew Morton To: Daniel Phillips Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: 2.5.74-mm1 Message-Id: <20030705121416.62afd279.akpm@osdl.org> In-Reply-To: <200307051728.12891.phillips@arcor.de> References: <20030703023714.55d13934.akpm@osdl.org> <200307050216.27850.phillips@arcor.de> <200307051728.12891.phillips@arcor.de> X-Mailer: Sylpheed version 0.9.0pre1 (GTK+ 1.2.10; i686-pc-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 Daniel Phillips wrote: > > The situation re scheduling in 2.5 feels much as > the vm situation did in 2.3 I've been trying to avoid thinking about that comparison. I don't think it's really, really bad at present. Just "should be a bit better". > Kgdb is no help in > diagnosing, as the kgdb stub also goes comatose, or at least the serial link > does. No lockups have occurred so far when I was not interacting with the > system via the keyboard or mouse. Suggestions? Enable IO APIC, Local APIC, nmi watchdog. Use serial console, see if you can get a sysrq trace out of it. That's `^A F T' in minicom. I mean, it _has_ to be either stuck with interrupts on, or stuck with them off.