Date: Wed, 13 Nov 2002 11:05:25 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Matthias Buelow <mkb@mukappabeta.de> Cc: Terry Lambert <tlambert2@mindspring.com>, Wartan Hachaturow <wart@tepkom.ru>, freebsd-alpha@FreeBSD.ORG Subject: Re: Any TODO out there? Message-ID: <15826.30789.443260.294559@grasshopper.cs.duke.edu> In-Reply-To: <3DD27009.90003@mukappabeta.de> References: <20021113085124.GA23125@mojo.tepkom.ru> <3DD22648.35D7B3DE@mindspring.com> <3DD27009.90003@mukappabeta.de>
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Matthias Buelow writes: > Terry Lambert wrote: > > > FreeBSD Alpha doesn't work on >2G because some drivers need to > > use the bus space functions to make sure all DMAs occur in the > > window accessible to the various busses. For an small overview: > > Are you sure the limit isn't 1Gig? I have a PWS with 1.5GB and on > reporting crashes on boot with 4.7 to the list, I was told it was > because fbsd doesn't have DMA bouncing or whatever to < 1GB (yet). Its 1GB on most machines, 2GB on some newer ones. And its not bouncing, its re-mapping. Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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