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>
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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.home | help
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