On Tue, May 31, 2011 at 10:53 PM, DJ Delorie <dj@xxxxxxxxxx> wrote: > >> It seems that the smsc95xx module can not be kept responsible for the >> bad performance of your drive. > > The opposite seems to be true - activity in the smsc95xx module > *improves* performance. ÂIt still smells like a missing interrupt (or > poll) problem, but I still don't know where... > >> Other points that might investigation, >> include the USB-controller on your PandaBoard (ehci, ohci, ...) or > > [ 1833.619598] usb 1-1.3: new full speed USB device using ehci-omap and address 6 > [ 2318.736450] usb 1-1.3: new high speed USB device using ehci-omap and address 7 > [ 2695.448394] usb 1-1.3: new full speed USB device using ehci-omap and address 8 > > ehci-omap is built in to the kernel. This driver seems to use all the ehci-hcd functions. You can set the parameters on the kernel-command line like "ehci_hcd.ignore_oc=1" (to ignore over-currents, which you probably don't have). It's late here, and I can not concentrate the effects that the options describe in ehci-hcd.c at the moment. You might find some hints in linux-2.6/Documentation/usb/ehci.txt as it describes some debugging options. Good luck! _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
