linux-kernel - Re: USB disconnects every 30 seconds (2.6.27-rc8)

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Message-ID: <Pine.LNX.4.44L0.0810031522280.6462-100000@iolanthe.rowland.org>
Date:	Fri, 3 Oct 2008 15:23:00 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Dave Hansen <dave@...1.net>
cc:	gregkh <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	<linux-usb@...r.kernel.org>
Subject: Re: USB disconnects every 30 seconds (2.6.27-rc8)

On Fri, 3 Oct 2008, Alan Stern wrote:

> You should use usbmon (see Documentation/usb/usbmon.txt) to record a 
> trace of everything happening on bus 3.  And to keep things simple, you 
> should unplug all the USB devices except for one of the magical 
> disappearing hubs.

Better still, get two traces: one from each kernel.  Then they can be 
compared.

Alan Stern

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