[Fwd: SMP Large Buffers]

[Arjan van de Ven]

-------- Forwarded Message --------
> From: Matthew Singer <matt@xxxxxxxxxxxxxxxxxxx>
> Reply-To: matt@xxxxxxxxxxxxxxxxxxx
> To: 'linux-kernel-Mailing-list' <linux-kernel@xxxxxxxxxxxxxxx>, linux-
> smp@xxxxxxxxxxxxxxx
> Subject: SMP Large Buffers
> Date: Sat, 14 May 2005 10:06:34 -0400
> I'm working with a driver that needs dma buffers larger than 128K.  The
> system is a 2 processor SMP with 2 gig total ram.
> 
> Using GRUB, we set mem= to be 1984M, leaving 64M reserved.
> 
> doing  ioremap(0x7c000000, 0x4000000)
>        followed by an access to x7c000000 results in an OOPS.

well you have to access the result of the ioremap, not it's argument!


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