Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 13 Jun 2003 19:07:05 -0400 (EDT)
From:      Jeff Roberson <jroberson@chesapeake.net>
To:        Andrew Gallatin <gallatin@cs.duke.edu>
Cc:        orlando.bassotto@ieo-research.it
Subject:   Re: 5.1beta2 on Alpha ES40 w/ 32GB pys ram
Message-ID:  <20030613190624.W36168-100000@mail.chesapeake.net>
In-Reply-To: <16094.16676.273466.121560@grasshopper.cs.duke.edu>

next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 4 Jun 2003, Andrew Gallatin wrote:

>
>
> Andrea Cocito writes:
>  > Hallo,
>  >
>  > I have a little (??) problem trying to boot FreeBSD 5.1beta2
>  > on an ES40 with 32 gigs of  physical RAM, this is the status:
>  >
>
> You have to limit physical memory to 2GB or less.  Otherwise, DMAs
> won't work.
>
> Drew

Is this because we dont program the TLB on the DMA controller?  I heard
rumors that sparc64 has code to handle all of this for their chipsets.  If
they have the infrastructure it may not be hard to port.





Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030613190624.W36168-100000>