Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932395AbWJDHEq (ORCPT ); Wed, 4 Oct 2006 03:04:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932396AbWJDHEq (ORCPT ); Wed, 4 Oct 2006 03:04:46 -0400 Received: from public.id2-vpn.continvity.gns.novell.com ([195.33.99.129]:63433 "EHLO emea1-mh.id2.novell.com") by vger.kernel.org with ESMTP id S932395AbWJDHEp (ORCPT ); Wed, 4 Oct 2006 03:04:45 -0400 Message-Id: <45237973.76E4.0078.0@novell.com> X-Mailer: Novell GroupWise Internet Agent 7.0.1 Date: Wed, 04 Oct 2006 08:05:55 +0100 From: "Jan Beulich" To: "Ingo Molnar" , "Andi Kleen" Cc: , "Andrew Morton" , , "Randy Dunlap" Subject: Re: [2.6.18-rc7-mm1] slow boot References: <4516B966.3010909@imap.cc> <20060924145337.ae152efd.akpm@osdl.org> <451BFFA9.4030000@imap.cc> <200609281912.01858.ak@suse.de> <451C58AC.5060601@imap.cc> <20060928163046.055b3ce0.rdunlap@xenotime.net> <20060928163046.055b3ce0.rdunlap@xenotime.net> <451C65A0.1080002@imap.cc> <451CE2F0.76E4.0078.0@novell.com> <20060929183959.GA13991@elte.hu> In-Reply-To: <20060929183959.GA13991@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1036 Lines: 26 >>> Ingo Molnar 29.09.06 20:39 >>> > >* Andi Kleen wrote: > >> "Jan Beulich" writes: >> >> > There's nothing stack trace/unwind related among the functions listed at all afaics. >> > I don't know much about how profiling works, is it perhaps just missing something? >> >> Perhaps lockdep calls them with interrupts off? The old profiler >> doesn't support profiling with interrupts off. oprofile does, but it >> cannot be used at early boot. > >Yes, lockdep does everything that changes the dependency graph(s) with >irqs off. Jan, i bounced you the mail with the function traces included, >that should show you the overhead points. Okay, makes sense then. I'll get to addressing the (already identified) cause as soon as I can. Jan - 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/