Messages in this thread | ![/](/images/icornerl.gif) | | From | "Jon Schindler" <> | Subject | Re: USB storage does not work with 3GB of RAM, but does with 2G of RAM | Date | Fri, 08 Jul 2005 20:49:12 -0400 |
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Hi Andi,
As you suggested, removing ehci_hcd (using rmmod ehci_hcd) allows the USB storage device to work. So, to answer your question, yes, the ohci_hcd driver does work with 3GB's of RAM. Still, knoppix 3.9 IS able to work with both ehci and 3GB's of RAM, so it still sounds like it's a software problem, not an nvidia hardware issue.
Jon
>From: Andi Kleen <ak@suse.de> >To: "Jon Schindler" <jonschindler@hotmail.com> >CC: linux-kernel@vger.kernel.org >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@hotmail.com> 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 >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/
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