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From: Ross Biro <ross.biro@gmail.com>
To: Matt Sexton <sexton@mc.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: DRAM and PCI devices at same physical address
Date: Mon, 28 Jun 2004 12:27:22 -0700	[thread overview]
Message-ID: <8783be6604062812277ee07aa@mail.gmail.com> (raw)
In-Reply-To: <1088198580.29697.62.camel@dhcp_client-120-140>

On 25 Jun 2004 17:23:00 -0400, Matt Sexton <sexton@mc.com> wrote:

> 
> Should they be appearing there at all?  Does Linux make any guarantees
> when there is more physical memory than specified by "mem=" ?

You've told linux there is only 512M of physical memory and it
believes you, so it is using the available address space for memory
mapped i/o.  I know of no way to reserve memory on the command line.

  parent reply	other threads:[~2004-06-28 19:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-25 21:23 DRAM and PCI devices at same physical address Matt Sexton
2004-06-27  3:26 ` Matt Porter
2004-06-28 15:51   ` Matt Sexton
2004-06-28 16:22     ` Matt Porter
2004-06-28 19:27 ` Ross Biro [this message]
2004-06-29 14:31   ` Matt Sexton

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