Patrick Haller wrote in a message to Mike Bilow:

 PH>> What does DosQueryRASInfo() ?

 MB> RAS is IBMspeak for "reliability and serviceability," meaning 
 MB> system trace.

 PH> At the moment I only get two zeroed buffers back. Will I have 
 PH> to use FFST/2 or LOGDAEM & Co. to get "useful" information ?

It is considerably more complicated than that.  You need to modify the
source code of the module under test, and you need to use a couple of
special tools (such as TRCUST) on it after linking.
 
-- Mike


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