K 10 svn:author V 6 cognet K 8 svn:date V 27 2006-05-31T15:50:33.000000Z K 7 svn:log V 289 If our buffer is not aligned on the cache line size, write back/invalidate the first and last cache line in PREREAD, and just invalidate the cache lines in POSTREAD, instead of write-back/invalidating in POSTREAD, which could lead to stale data overriding what has been transfered by DMA. END