Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752505AbYJTPV7 (ORCPT ); Mon, 20 Oct 2008 11:21:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751603AbYJTPVu (ORCPT ); Mon, 20 Oct 2008 11:21:50 -0400 Received: from lucidpixels.com ([75.144.35.66]:39890 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751572AbYJTPVt (ORCPT ); Mon, 20 Oct 2008 11:21:49 -0400 Date: Mon, 20 Oct 2008 11:21:48 -0400 (EDT) From: Justin Piszcz To: Alan Stern cc: Oliver Neukum , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE) In-Reply-To: Message-ID: References: User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1381 Lines: 47 On Mon, 20 Oct 2008, Alan Stern wrote: > On Sun, 19 Oct 2008, Justin Piszcz wrote: > >>> You should turn on the usbfs_snoop module parameter for usbcore and see >>> what shows up in the system log. >> >>> Alan Stern >> >> Tried this, kernel would not boot up any further when I had that enabled >> alongside the 'extra' debugging options in the kernel: >> >> http://home.comcast.net/~jpiszcz/20081019/2.6.27.2-usb-extra-debug.txt > > I'm not interested in your config file; I need to see the dmesg log. > >>> Please get sysrq-t of a hang. >>> >>> Regards >>> Oliver >>> >> >> Before I tried the above, I was able to get a sysrq-t of the hang: >> >> http://home.comcast.net/~jpiszcz/20081019/trace_before_trigger.txt >> http://home.comcast.net/~jpiszcz/20081019/trace_after_trigger.txt > > Your trace is incomplete. You might need to increase the size of the > kernel log buffer (CONFIG_LOG_BUF_SHIFT) or the size of the buffer used > by dmesg (the -s option). > > Alan Stern > You're right, I set it to 128 KiB and here is the full log, including the initial dmesg: http://home.comcast.net/~jpiszcz/20081019/kern.log Justin. -- 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/