From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756655AbZHZDnU (ORCPT ); Tue, 25 Aug 2009 23:43:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756590AbZHZDnT (ORCPT ); Tue, 25 Aug 2009 23:43:19 -0400 Received: from mail-fx0-f217.google.com ([209.85.220.217]:55034 "EHLO mail-fx0-f217.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751697AbZHZDnT (ORCPT ); Tue, 25 Aug 2009 23:43:19 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type :content-transfer-encoding; b=pXTkbn9ELCzQLFALV1bqm1M1sREvtdYbGby2Rqp2yHVQzdtdwQau774L19OjxkPleM Q7guqswSwk2juycJB4V8WwRk0/RXwqnPQqK++3KGhiv+fmv8PwghFA5FFpL/JemhLARa jOOtoMW/O32bWn5pKUwhoTKafvkTRVc4aL/aw= MIME-Version: 1.0 From: Patrick Date: Tue, 25 Aug 2009 23:43:00 -0400 Message-ID: <85977ef90908252043x78afff40k8c79b3fd88be65cb@mail.gmail.com> Subject: Boot hang after io scheduler registration To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org http://lkml.indiana.edu/hypermail/linux/kernel/0812.3/00547.html The above archived post mimics my problem exactly, unfortunately it offers no solution. I have added initcall_debug to my boot string and I have transcribed the output below. I have an Intel Core 2 Quad Q6600 cpu on an Asus P5K SE (Intel P35 chipset) motherboard. I built a 64-bit kernel yesterday (08/24/09) from the git source, it reports itself as 2.6.31-rc7. Please note that if I boot with the noapic and nolapic options, the system will boot normally, but the kernel will only report a single cpu/core (cat /proc/cpuinfo, top, etc). The trouble happens with ubuntu 9.04 kernel, the latest weekly gentoo live cd, and the current arch linux core install cd. calling aes_init+0x0/0xc @ 1 initcall aes_init+0x0/0xc returned 0 after 61 usecs calling deflate_mod_init+0x0/0xc @ 1 initcall deflate_mod_init+0x0/0xc returned 0 after 224 usecs calling krng_mod_init+0x0/0xc @ 1 alg: No test for stdrng (krng) initcall krng_mod_init+0x0/0xc returned 0 after 134 usecs calling proc_genhd_init+0x0/0x3f @ 1 initcall proc_genhd_init+0x0/0x3f returned 0 after 2 usecs calling noop_init+0x0/0x17 @ 1 io scheduler noop registered initcall noop_init+0x0/0x17 returned 0 after 123 usecs calling as_init+0x0/0x17 @ 1 io scheduler anticipatory registered initcall as_init+0x0/0x17 returned 0 after 116 usecs calling deadline_init+0x0/0x18 @ 1 io scheduler deadline registered (default) initcall deadline_init+0x0/0x18 returned 0 after 118 usecs calling cfq_init+0x0/0xb0 @ 1 io scheduler cfq registered initcall cfq_init+0x0/0xb0 returned 0 after 138 usecs calling percpu_counter_startup+0x0/0x2d @ 1 initcall percpu_counter_startup+0x0/0x2d returned 0 after 0 usecs calling pci_init+0x0/0x38 @ 1 _