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Date: Sat, 10 Oct 2009 13:48:26 +1100
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
To: Alan Stern <stern@...land.harvard.edu>
Cc: Greg KH <greg@...ah.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
Hugh Blemings <hugh@...mings.org>,
"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: USB serial regression 2.6.31.1 -> 2.6.31.2 (and 2.6.32-rc3)
On Fri, 2009-10-09 at 22:03 -0400, Alan Stern wrote:
> > This looks a lot like a hardware problem, such as bad USB cables.
> > Could you collect a usbmon trace for bus 4? It ought to show whether
> > this is the case or whether software is at fault.
>
> If it's not a hardware issue and the modem really does work okay in
> 2.6.31.1, you should also collect a usbmon trace under that kernel for
> comparison.
Ok. I'll give those a go later this week-end.
Cheers,
Ben.
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