Date: Sun, 22 Mar 2009 13:41:18 -0700 From: Marcel Moolenaar <xcllnt@mac.com> To: Justin Hibbits <jrh29@alumni.cwru.edu> Cc: freebsd-ppc@freebsd.org Subject: Re: Apple ATA DMA problems with ATAPI Message-ID: <8B9483E9-D6D4-441E-9202-31FA34F5DA98@mac.com> In-Reply-To: <20090322180638.GA3708@narn.knownspace> References: <20090322180638.GA3708@narn.knownspace>
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On Mar 22, 2009, at 11:06 AM, Justin Hibbits wrote: > Well, it seems I was bitten by the ATA DMA problems from a few > months back. Try disabling DMA for atapi in /boot/loader.conf and enable it in /etc/sysctl.conf. For some reason, on my Mac Mini at least, it helps to first program PIO and then program *DMA. YMMV, -- Marcel Moolenaar xcllnt@mac.com
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