Re: [PATCH] Prevent reserving RAM in the region already reserved by BIOS

From: Mathieu Rondonneau
Date: Fri May 21 2010 - 11:15:20 EST

On Thu, May 20, 2010 at 5:12 AM, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, 19 May 2010 17:01:41 -0700
> Mathieu Rondonneau <mathieu.rondonneau@xxxxxxxxx> wrote:
>> it' s not in ISA space.
>> once loading the NVIDIA driver, the warnign oops shows up.
>> 4K starting at 0x9f800 (i.e. to 0xa007ff) overlap with the ISA space
>> (starting at 0xa0000).
> If this is the proprietary Nvidia driver you need to take the matter up
> with Nvidia. I assume they are trying to remap chunks of the EBA for some
> reason.
> And please can you not top post to this list, it makes it very hard to
> follow when you are replying in a different order to everyone else.
> Alan

Thanks Alan, I will post on NVIDIA forum. Thanks for the feedback.

Yinghai, your patch had some missing parameter for the sanitize function.
It does fixes the bios side (/proc/iomem) that now shows only aligned sections.
But it does not prevent the Nvidia driver to try to allocate on non-4K
align (i.e. if this is what' s happening).

Thanks for the help,
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