> > see attached fault - In short the problem has been around for a long time
> > but it seems to be related to the USB stack DMA handling - before usb2
> > it showed up as a DMA error in the ATA driver - but that was because
> > the old umass driver somehow "stole" an active DMA
> >
> > {gigantic snip}

>
> Check out this thread, which includes patches:
>
> http://lists.freebsd.org/pipermail/f...hread.html#220
> http://lists.freebsd.org/pipermail/f...er/000220.html
>



The patch indeed solved the problem - thanks a million
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