Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757629AbYHUKWu (ORCPT ); Thu, 21 Aug 2008 06:22:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754374AbYHUKWl (ORCPT ); Thu, 21 Aug 2008 06:22:41 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:40116 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754066AbYHUKWk (ORCPT ); Thu, 21 Aug 2008 06:22:40 -0400 Date: Thu, 21 Aug 2008 12:22:22 +0200 From: Ingo Molnar To: Glauber Costa Cc: tglx@linutronix.de, hpa@zytor.com, linux-kernel@vger.kernel.org, x86@kernel.org Subject: Re: [GIT PULL] time.c - respin Message-ID: <20080821102222.GA31922@elte.hu> References: <200808201507.m7KF79Fk021224@int-mx1.corp.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200808201507.m7KF79Fk021224@int-mx1.corp.redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1918 Lines: 63 * Glauber Costa wrote: > Ingo, please pull the latest master git tree from: > > git://git.kernel.org/pub/scm/linux/kernel/git/glommer/linux-2.6-x86-integration.git master > > into your tree. It solves a bisectability issue, but I can't, > unfortunately, reproduce the problem you report. So hopefuly you'll > now be able to bisect your problems to a point we can find out what's > going on i've tried it, and -tip testing found a hang on 64-bit x86. It hangs here: [ 0.340029] calling tc_filter_init+0x0/0x4c [ 0.340029] initcall tc_filter_init+0x0/0x4c returned 0 after 0 msecs [ 0.340029] calling genl_init+0x0/0xd8 [ hard hang ] it should have continued with: [ 2.976346] initcall genl_init+0x0/0xd8 returned 0 after 15 msecs [ 2.982303] calling cipso_v4_init+0x0/0x88 [ ... etc ... ] i've bisected the hang back to: 0de577d0dd2d1101431d3438d0880fa32a6188d6 is first bad commit commit 0de577d0dd2d1101431d3438d0880fa32a6188d6 Author: Glauber Costa Date: Fri Jul 11 15:43:19 2008 -0300 x86: use generic intr_init call Replace apic initialization code with generic intr_init_hook(). Signed-off-by: Glauber Costa the config is at: http://redhat.com/~mingo/misc/config-Thu_Aug_21_11_14_36_CEST_2008.bad but the bug is rather obvious: - apic_intr_init(); - - if (!acpi_ioapic) - setup_irq(2, &irq2); + intr_init_hook(); why exactly did you remove the cascade IRQ registration? If it remains unallocated and a driver happens to use it funny things might occur. Also, the commit log does not declare why it's removed. Ingo -- 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/