Juergen Keil wrote: > And its a single cpu / single core box. > > > A wild guess: Has the user installed Casper's powernow driver?
Yes I did install powernow. > > I'm asking because I've observed similar timeouts: > > - on AMD64 boxes with nVidia chipset integrated ehci > > and > > - powernow driver set to automatic (and cpu is idle), > or cpu forced to the slowest frquency > > and > > - Maxtor Personal Storage USB2.0 HDD Yep we tried one of those drives too! > The timeouts never happen when I force the cpu frequency to anything > other than the slowest setting. That is, I've been using this shell > script hack to work around the usb timeout problem: > > # avoid running in the slowest powernow state with the ASUS M2NPV-VM, > # for some reason that breaks usb on the maxtor usb backup hdd > date +"Backup is running: %T" > > /usr/sbin/powernowadm manual > sleep 5 > /usr/sbin/powernowadm slow > /usr/sbin/powernowadm faster > > > I was able to reproduce the same timeout / powernow issue using an > ASUS M2N-SLI deluxe mainboard. > > Using the above powernowadm commands, the M2NPV-VM never again > had the timeout issue, and the Maxtor USB2.0 HDDs have been used for > writing about ~180GB each night, 5 times a week, for several month now. Thanks I'll give that a go and report back on how we get on. -- Darren J Moffat _______________________________________________ driver-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/driver-discuss
