From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755143AbXJIF0a (ORCPT ); Tue, 9 Oct 2007 01:26:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751634AbXJIF0X (ORCPT ); Tue, 9 Oct 2007 01:26:23 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:40677 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751556AbXJIF0X (ORCPT ); Tue, 9 Oct 2007 01:26:23 -0400 Date: Mon, 08 Oct 2007 22:26:22 -0700 (PDT) Message-Id: <20071008.222622.22041332.davem@davemloft.net> To: benh@kernel.crashing.org Cc: david-b@pacbell.net, linux-usb-users@lists.sourceforge.net, linux-kernel@vger.kernel.org, greg@kroah.com Subject: Re: OHCI root_port_reset() deadly loop... From: David Miller In-Reply-To: <1191906816.6355.62.camel@pasglop> References: <20071008.165420.42793456.davem@davemloft.net> <20071009040917.DC7FC237446@adsl-69-226-248-13.dsl.pltn13.pacbell.net> <1191906816.6355.62.camel@pasglop> X-Mailer: Mew version 5.1.52 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Benjamin Herrenschmidt Date: Tue, 09 Oct 2007 15:13:36 +1000 > I'm not even sure module load order is 100% fault proof here since > khubd spawns as a thread... I'm concerned about that as well, thanks for bringing it up. My understanding, however, is that the critical thing is that the EHCI device reset being done by the EHCI driver probe occurs and completes first. If that is true, then just making sure EHCI loads initially is a sufficient constraint to fix this problem.