Re: USB storage does not work with 3GB of RAM, but does with 2G of RAM

From: Andi Kleen
Date: Fri Jul 08 2005 - 18:48:31 EST


"Jon Schindler" <jonschindler@xxxxxxxxxxx> writes:
>
> This mainly seems to be an issue with USB mass storage devices like
> USB memory sticks and USB hard drives (I've tried both, and neither is
> assigned a scsi device properly). I am still able to use my USB mouse
> when I have 3GB installed. I'm not sure if that makes it a USB 1.1
> issue or a USB storage issue, but hopefully someone will have some
> insight after looking at the logs. Thanks in advance for any help.

It sounds like the Nvidia EHCI controller has trouble DMAing to high
addresses. Would be a bad bug if true.

Does it work when you disable EHCI and only enable OHCI? (this will
limit you to USB 1.1)

-Andi
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