* [Fwd: SMP Large Buffers]
@ 2005-05-14 14:24 Arjan van de Ven
0 siblings, 0 replies; only message in thread
From: Arjan van de Ven @ 2005-05-14 14:24 UTC (permalink / raw)
To: linux-kernel; +Cc: matt
-------- Forwarded Message --------
> From: Matthew Singer <matt@finaldraftbooks.com>
> Reply-To: matt@finaldraftbooks.com
> To: 'linux-kernel-Mailing-list' <linux-kernel@vger.kernel.org>, linux-
> smp@vger.kernel.org
> 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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2005-05-14 14:24 [Fwd: SMP Large Buffers] Arjan van de Ven
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