linux-kernel - Re: Problem: irq 217: nobody cared + backtrace

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Date:	Fri, 4 Aug 2006 10:33:49 -0700
From:	Greg KH <gregkh@...e.de>
To:	Sergio Monteiro Basto <sergio@...giomb.no-ip.org>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	Jesper Juhl <jesper.juhl@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-usb-devel@...ts.sourceforge.net
Subject: Re: Problem: irq 217: nobody cared + backtrace

On Fri, Aug 04, 2006 at 04:33:11PM +0100, Sergio Monteiro Basto wrote:
> On Thu, 2006-08-03 at 12:08 -0400, Alan Stern wrote:
> > In case it happens again, here's how 
> > you can get more information.  Turn on CONFIG_USB_DEBUG and 
> > CONFIG_DEBUG_FS, and mount a debugfs filesystem somewhere (say 
> > /sys/kernel/debug).  Then after the problem occurs, save a copy of 
> > 
> >         /sys/kernel/debug/uhci/0000:00:1d.1 
> 
> can you explain to me how I mount debugfs filesystem ? please

as root:
	mount -t debugfs none /sys/kernel/debug

thanks,

greg k-h
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