Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751107AbWCGF43 (ORCPT ); Tue, 7 Mar 2006 00:56:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751157AbWCGF43 (ORCPT ); Tue, 7 Mar 2006 00:56:29 -0500 Received: from smtp110.mail.mud.yahoo.com ([209.191.85.220]:45650 "HELO smtp110.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1751107AbWCGF43 (ORCPT ); Tue, 7 Mar 2006 00:56:29 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=VHmzjp02CyJb0vsTzlzc2Td+4Do+dbwD34QUfcL/06wYlHJTjxxRX54EOx1yPeFnmWiDMSppKw59HLAmMduHBJ4KhaXKw2Zd9JB0S8Jd3mJlWGrGtC6Al4EEDVKoK8Zy6eJydyr45uwYkj9FXpJamGT1CivJ0JER+WghgG7rgG0= ; Message-ID: <440D2087.5010201@yahoo.com.au> Date: Tue, 07 Mar 2006 16:56:23 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Mike Galbraith CC: Linus Torvalds , Andrew Morton , Greg KH , Ingo Molnar , Linux Kernel Mailing List , Dave Jones Subject: Re: Fw: Re: oops in choose_configuration() References: <20060304121723.19fe9b4b.akpm@osdl.org> <20060304213447.GA4445@kroah.com> <20060304135138.613021bd.akpm@osdl.org> <20060304221810.GA20011@kroah.com> <20060305154858.0fb0006a.akpm@osdl.org> <1141631240.26111.11.camel@homer> <1141710669.7901.9.camel@homer> In-Reply-To: <1141710669.7901.9.camel@homer> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1276 Lines: 36 Mike Galbraith wrote: > On Mon, 2006-03-06 at 08:47 +0100, Mike Galbraith wrote: > >>On Sun, 2006-03-05 at 21:00 -0800, Linus Torvalds wrote: >> >> >>>Is there something else I've missed? >> >>Maybe. Does this add anything to the picture? During boot, >>recalc_task_prio() is called with now < p->timestamp. This causes quite >>a stir. If you WARN_ON(now < p->timestamp) or printk, you'll have a >>dead box due to hundreds of gripes as things churn. Adding... >> >>if (unlikely(now < p->timestamp)) >> __sleep_time = 0ULL; >> >>...turns it into exactly one gripe. > > > Nope. Further research shows that this is just a speed-step problem. > Still, the scheduler needs to protect itself, because even with all of > the speed-step stuff enabled, these continue to occurr even after > boot-up if you switch to a low power setting, which screws up the > scheduler. > sched_clock needs to be fixed, rather than scheduler. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - 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/