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Re: GART error 11



Hi Dave,

I have verified that booting the system with iommu=off (with vanilla
kernel) does seem to make the problem go away.

I apologize for not being fully up to speed with knowing what relationship
the iommu has with the gart, but I will find out.

I just wanted to post my findings.

Thanks again!

Best Regards,

Arthur Perry
Lead Linux Developer / Linux Systems Architect
Validation, CSU Celestica
Sair/Linux Gnu Certified Professional
Providing professional Linux solutions for 7+ years



On Thu, 27 May 2004, Dave Jones wrote:

> On Thu, May 27, 2004 at 11:02:10AM -0400, Arthur Perry wrote:
>
>  > The question really comes down to:
>  > Is this problem an oversight of the distributors (silly! the agp driver should not be built into the kernel for server use!)
>  > or
>  > Kernel code implementation? (well, if no agp bus is present, then let's not go and set up the GART, right?)
>
> If you don't have an AGP graphics card, there'll be nothing really
> set up, unless you are using the IOMMU feature of the x86-64 kernel.
> Setting up of GART tables etc only happens when the graphics
> drivers (DRI) asks it to.
>
> Does booting with iommu=off fix this for you?
> It may be that some driver is doing something that it
> shouldn't.  If it does make the problem go away, what
> devices do you have in the system (lspci output please)
>
> 		Dave
>



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