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Re: MMU Bus fault

Hi Orjan

The CONFIG_ETRAX_DEF_R_BUS_CONFIG did change the behaviour of the system.

We are still testing, but prelimanary investigation shows that a single usb
serial port is stable if we flashitall.

However, if we connect a second USB Hub (chain the hub from the onboard hub)
we are experiencing a system PANIC (this may be a new problem).


----- Original Message -----
From: "Orjan Friberg" <orjan.friberg@xxxxxxx.com>
To: <cedric.stevens@xxxxxxx.za>
Cc: <dev-etrax@xxxxxxx.com>
Sent: Friday, May 21, 2004 5:43 PM
Subject: Re: MMU Bus fault

> cedric.stevens@xxxxxxx.za wrote:
> > Hi
> >
> > 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
> > Hub. (System PANIC). Is this in line with your bug description?
> I'm sorry, but I don't know what the problem is.  Like I said, I've run
> devices on both ports previously without problems, and I've never seen
> the situation you're describing.  (Disabling port 1 was not suggested as
> a solution, only as a way to narrow down the number of possibilities for
> what was happening.)
> That said, does the ksymoops output look any different now (after the
> CONFIG_ETRAX_DEF_R_BUS_CONFIG) change?  Are they consistent between
> runs, or do they appear to be random?
> --
> Orjan Friberg
> Axis Communications