From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751338AbWGKWlG (ORCPT ); Tue, 11 Jul 2006 18:41:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751339AbWGKWlG (ORCPT ); Tue, 11 Jul 2006 18:41:06 -0400 Received: from CHOKECHERRY.SRV.CS.CMU.EDU ([128.2.185.41]:17103 "EHLO chokecherry.srv.cs.cmu.edu") by vger.kernel.org with ESMTP id S1751338AbWGKWlF (ORCPT ); Tue, 11 Jul 2006 18:41:05 -0400 Date: Tue, 11 Jul 2006 18:41:04 -0400 To: linux-kernel@vger.kernel.org Subject: boot hangs with SMP, USB storage, and ACPI Message-ID: <20060711224104.GA7046@localhost> Mail-Followup-To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.11+cvs20060403 From: Eric Cooper Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org When I try to boot a 2.6.17 kernel compiled for SMP (hyperthreading), it hangs early in the boot sequence (after printing "Freeing SMP alternatives"). The issue seems to be an interaction between a USB-storage device (an empty flash card reader built into the monitor) and ACPI. It boots fine if I do any one of these: - physically disconnect the USB device - disable USB support in the BIOS - boot with acpi=ht but none of these is completely satisfactory. I'll happily supply more details, run tests, etc. if anyone is interested in looking at this. Thanks, and please CC me if you respond. -- Eric Cooper e c c @ c m u . e d u