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Re: MMU Bus fault


Could you please explain the current bug in the driver in detail. For a
single port, the system is now stable, but I am unable to add a second USB
Hub. (System PANIC). Is this in line with your bug description?

----- Original Message -----
From: "Orjan Friberg" <orjan.friberg@xxxxxxx.com>
To: <cedric.stevens@xxxxxxx.za>
Cc: <dev-etrax@xxxxxxx.com>
Sent: Monday, May 17, 2004 11:39 AM
Subject: Re: MMU Bus fault

> cedric.stevens@xxxxxxx.za wrote:
> > Hi
> >
> > I've installed version of the usb host controller driver.
> >
> > I still experience the panic. I hope the following can provide some
> >
> > When switching on #defineUSB_DEBUG_BULK,  the device seem to hang with
> > following extract being
> > repeated on the console permantly. I can not see the oops. Can someone
> > please explain the meaning of "DMA channel not running in add".
> The "DMA channel not running" is completely harmless.  It simply means
> that the DMA channel is started after the new traffic has been inserted
> in the DMA list.  (The reason the DMA channel stopped in the first place
> was that there was no more traffic.)
> Does it make any difference if you disable the USB port that is used for
> the second Ethernet interface (port 1, if memory serves me correctly)?
> (You'll find it under "Drivers for ETRAX 100LX built-in interfaces".)
> --
> Orjan Friberg
> Axis Communications