Synopsis: bus_dmamap_sync with BUS_DMASYNC_POSTREAD needs memory barrier. Responsible-Changed-From-To: bms->freebsd-i386 Responsible-Changed-By: bms Responsible-Changed-When: Wed Aug 2 12:59:04 UTC 2006 Responsible-Changed-Why: back to the free pool http://www.freebsd.org/cgi/query-pr.cgi?pr=61858