Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268735AbUJPNzn (ORCPT ); Sat, 16 Oct 2004 09:55:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268737AbUJPNzn (ORCPT ); Sat, 16 Oct 2004 09:55:43 -0400 Received: from relay.pair.com ([209.68.1.20]:61714 "HELO relay.pair.com") by vger.kernel.org with SMTP id S268735AbUJPNzl (ORCPT ); Sat, 16 Oct 2004 09:55:41 -0400 X-pair-Authenticated: 66.190.53.4 Message-ID: <4171285B.8030701@cybsft.com> Date: Sat, 16 Oct 2004 08:55:39 -0500 From: "K.R. Foley" User-Agent: Mozilla Thunderbird 0.8 (X11/20040913) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rui Nuno Capela CC: Lee Revell , Ingo Molnar , linux-kernel , mark_h_johnson@raytheon.com, Daniel Walker , Bill Huey , Andrew Morton , Adam Heath , Lorenzo Allegrucci , Andrew Rodland Subject: Re: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U3 References: <20041011215909.GA20686@elte.hu> <20041012091501.GA18562@elte.hu> <20041012123318.GA2102@elte.hu> <20041012195424.GA3961@elte.hu> <20041013061518.GA1083@elte.hu> <20041014002433.GA19399@elte.hu> <20041014143131.GA20258@elte.hu> <20041014234202.GA26207@elte.hu> <20041015102633.GA20132@elte.hu> <1097888438.6737.63.camel@krustophenia.net> <1097894120.31747.1.camel@krustophenia.net> <32812.192.168.1.5.1097922568.squirrel@192.168.1.5> <41711A08.7040905@cybsft.com> <32819.192.168.1.5.1097934094.squirrel@192.168.1.5> In-Reply-To: <32819.192.168.1.5.1097934094.squirrel@192.168.1.5> X-Enigmail-Version: 0.86.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1644 Lines: 43 Rui Nuno Capela wrote: > K.R. Foley wrote: > >>Rui Nuno Capela: >> >>>I run both, on different machines. >>> >>>I'm actually running 2.6.9-rc4-mm1-U3 at this very moment, on my laptop >>>(P4 2.53Ghz/UP, Mdk 10.1c) and also on my desktop machine (P4 >>>2.80Ghz/SMP/HT, SuSE 9.1). >>> >>>However, on the desktop (SMP/HT) I could only made it boot/init >>>successfully with CONFIG_PREEMPT_REALTIME off. On my laptop (UP) is >>>running pretty well on full RT. >> >>I'm curious what you get when you try to boot the SMP system with >>REALTIME on? My SMP/HT system at the office works fine with this. >>Although there is one difference that jumps out at me. I have disabled >>ACPI. I don't have the config handy so I can't do a complete comparison, >>just going from memory. >> > > > Hmm. The way I see it, if I say acpi=off on kernel boot, I loose HT, and > end in a SMP enabled kernel running on only one CPU. To keep ACPI disabled > but rely on it to show up those hyperthreaded virtual cpus on boot, one > should say acpi=ht, I guess. > > Is that what you're asking? Actually what I was asking was what messages, etc. you get before the system fails to boot. I think Ingo already pointed out why several people, maybe yourself included, are having problems with this patch. As for acpi, I just disabled the power management stuff prior to building the kernel. Of course my ht still works. kr - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/