How does your bus_dma changes deal with systems that have DMA
incoherent cache.  bus_dmamap_sync would seem to require 
keeping the MI segments around...


-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Nashua, NH                Disclaimer: I disavow all knowledge of this message