> Windows is currently using opensm 3.3.3, this discussion pertains to 3.3.5. >MaxCreditHint and LinkRtLatency are not in the 3.3.5 ib_types.h, although the 6 >bytes from PortInfo record are removed in 3.3.5 ib_types.h? Can you compare the PortInfo definitions (against the spec ideally)? That may be where the problem is.