[issue979] Slow, failure-prone USB mass storage (SB600? msdosfs? CAM?)

Matthew Dillon dillon at apollo.backplane.com
Sat Mar 22 11:16:17 PDT 2008


:Relevant portion of usbdevs -v:
:Controller /dev/usb4:
:addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), ATI(0x00=
:00),
:rev 1.00
:...
:
:Should I be suspecting the filesystem, CAM (I've noticed Peter Avalos's wor=
:k on
:CAM locking but haven't tried it yet), or the basic hardware support?

    Well, if Linux is also blowing up on it then it is either going to be
    the USB chipset on the motherboard, or the device plugged into or
    otherwise connected to the USB.

    If other USB mass-storage devices work (for example, if you plug in
    a usb storage key and that works ok), then it is likely the device
    plugged into the usb slot and not the usb chipset that is to blame.

    If no mass storage devices work then it is likely an issue with the
    usb chipset or driver.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>





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