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From: geoff@pla...
Subject: venti+fossil problems on new install
Date: Thu, 21 Sep 2006 19:28:01 -0400

Because DMA isn't enabled; your dmactl is 0.  Try
	echo dma on >/dev/sdE0/ctl
and then rerun your benchmark.

As I understand it, DMA is enabled automatically only on controllers
found by pcimatch that are also known to have working DMA.  Anything
looks like a legacy controller won't have DMA enabled automatically.