I can boot my s900/604ex200x2 off of a scsi disk connected to the
internal bus, but invariably end up frozen with a "mesh timeout,
resetting dma" error. This is with 1.4.2 , 1.4.3alpha or 1.5. I saw some
posts regarding this in the archives, but nothing seemed to be
resolved......

Is the mesh driver functional? 

Tom