From: Andi Kleen <ak@xxxxxxx>
To: "Jon Schindler" <jonschindler@xxxxxxxxxxx>
CC: linux-kernel@xxxxxxxxxxxxxxx
Subject: Re: USB storage does not work with 3GB of RAM, but does with 2G of RAM
Date: 08 Jul 2005 21:29:37 +0200
"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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