On Fri, 29 Oct 2004, Johannes Berg wrote:

> > Anyway, I don't see what can be done about it.  The "host system error" 
> > means that there was a PCI abort (or something similar) while the USB 
> > controller was using the bus.  Undoubtedly a hardware problem.  Probably 
> > it's intermittent because the controller doesn't use the PCI bus all the 
> > time.
> 
> Thanks for that explanation. Does make me wonder though why I only see
> this with USB, when the problem is on the PCI level. Shouldn't I see
> different things failing as well (like sound playing?)

I don't know.  Maybe the USB controller uses the PCI bus more heavily, or 
maybe it's just more sensitive to the speed change.

Alan Stern



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