Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759122AbZGHUWr (ORCPT ); Wed, 8 Jul 2009 16:22:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757057AbZGHUW3 (ORCPT ); Wed, 8 Jul 2009 16:22:29 -0400 Received: from mx-out2.daemonmail.net ([216.104.160.39]:39661 "EHLO mx-out2.daemonmail.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755202AbZGHUW2 (ORCPT ); Wed, 8 Jul 2009 16:22:28 -0400 From: "Michael S. Zick" Reply-To: lkml@morethan.org To: Alan Stern Subject: Re: Null Pointer BUG in uhci_hcd Date: Wed, 8 Jul 2009 15:22:19 -0500 User-Agent: KMail/1.9.9 Cc: Oliver Neukum , Jiri Kosina , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200907081522.22026.lkml@morethan.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1351 Lines: 49 On Wed July 8 2009, Alan Stern wrote: > On Wed, 8 Jul 2009, Michael S. Zick wrote: > > > But, then again, we might just get lucky: > > ehci_hcd 0000:00:10.4: Unlink after no-IRQ? Controller is probably using the wrong IRQ. > > usb 1-5: khubd timed out on ep0in len=18/64 > > Like I've been telling you all along, the hardware isn't working. > That sounds very fragile. > I suspect it's worse than a simple interrupt-routing mistake. > I would not object to your removing that one mistake - that is one less to contend with. > > > > For more information enable CONFIG_USB_DEBUG and CONFIG_DEBUG_FS, then > > > > see what's sitting in the usb/uhci/* files in debugfs. > > > > > > Fours up-time - nothing written to dmesg since boot - Just the usual hard-lockup. Also - something in the combined fix/diagnostic patch disable any sensing of external usb events. So I couldn't very well poke devices at it. ;) > > Anything in particular to look for/at? > > Just post the contents of those files. > Will capture that information during this afternoon's testing. Mike > Alan Stern > > > -- 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/