Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 10 Jan 2002 16:04:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 10 Jan 2002 16:03:51 -0500 Received: from x35.xmailserver.org ([208.129.208.51]:32526 "EHLO x35.xmailserver.org") by vger.kernel.org with ESMTP id ; Thu, 10 Jan 2002 16:03:36 -0500 Date: Thu, 10 Jan 2002 13:08:57 -0800 (PST) From: Davide Libenzi X-X-Sender: davide@blue1.dev.mcafeelabs.com To: Linus Torvalds cc: Mike Kravetz , Ingo Molnar , lkml , george anzinger Subject: Re: [patch] O(1) scheduler, -D1, 2.5.2-pre9, 2.4.17 In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 10 Jan 2002, Linus Torvalds wrote: > > On Thu, 10 Jan 2002, Davide Libenzi wrote: > > > > > > It wasn't a good night for benchmarking. I had a typo in the > > > script to run chat reniced and as a result didn't collect any > > > numbers for this. In addition, the kernel with Davide's patch > > > failed to boot with 8 CPUs enabled. Can't see any '# CPU specific' > > > mods in the patch. In any case, here is what I do have. > > > > Doh !! Do you have a panic dump Mike ? > > I bet it's just the placement of "init_idle()" in init/main.c, which is > unrelated to the scheduling proper, but if the kernel thread is started > before the boot CPU has done its "init_idle()", then the scheduler state > isn't really set up fully yet. > > (Old bug, I think its been there for a long time, I just think that the > old scheduler didn't much care, and the "child runs first" logic in > particular of the new scheduler probably just showed it more clearly) Uhm, seems fixed in pre11. Did you fix it in pre10->pre11 stage ? - Davide - 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/