From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932109AbYEUObc (ORCPT ); Wed, 21 May 2008 10:31:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757049AbYEUObW (ORCPT ); Wed, 21 May 2008 10:31:22 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:38271 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756525AbYEUObV convert rfc822-to-8bit (ORCPT ); Wed, 21 May 2008 10:31:21 -0400 From: Oliver Neukum Organization: NOvell To: Alan Stern Subject: Re: [PATCH] USB: fix deadlock in HCD code Date: Wed, 21 May 2008 16:31:15 +0200 User-Agent: KMail/1.9.9 Cc: Jiri Kosina , Greg KH , linux-usb@vger.kernel.org, lchiquitto@novell.com, linux-kernel@vger.kernel.org References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200805211631.16364.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Mittwoch 21 Mai 2008 16:13:45 schrieb Alan Stern: > > usb_hcd_flush_endpoint() is an obvious case. > > It's not obvious to me.  Where does usb_hcd_flush_endpoint() acquire > hcd_urb_list_lock with interrupts enabled? Sorry, yes looking again, it does complicated stuff with dropping the lock but leaving interrupts disabled. Sorry Oliver