From: "Jon Schindler" <jonschindler@hotmail.com>
To: ak@suse.de, linux-kernel@vger.kernel.org
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 [thread overview]
Message-ID: <BAY20-F7EE6B3C3A0E5C80A183D7C4DA0@phx.gbl> (raw)
In-Reply-To: <p734qb5p04e.fsf@verdi.suse.de>
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
>-
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next prev parent reply other threads:[~2005-07-09 0:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200507081938.27815.s0348365@sms.ed.ac.uk.suse.lists.linux.kernel>
[not found] ` <BAY20-F56DA47C91D7C093A5E426C4DB0@phx.gbl.suse.lists.linux.kernel>
2005-07-08 19:29 ` USB storage does not work with 3GB of RAM, but does with 2G of RAM Andi Kleen
2005-07-08 20:03 ` Jon Schindler
2005-07-08 20:16 ` Jon Schindler
2005-07-09 0:49 ` Jon Schindler [this message]
2005-07-09 0:56 ` Andi Kleen
2005-07-09 2:57 ` Jon Schindler
2005-07-11 15:03 Oliver Weihe
2005-07-11 23:21 ` Jon Schindler
2005-07-12 18:43 ` Jon Schindler
-- strict thread matches above, loose matches on Subject: below --
2005-07-08 18:38 Realtime Preemption, 2.6.12, Beginners Guide? Alistair John Strachan
2005-07-08 19:12 ` USB storage does not work with 3GB of RAM, but does with 2G of RAM Jon Schindler
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