subsystem_debug and mem_used in proc

Could someone please clarify the use of the proc values for 
subsystem_debug and memused.  In regard to 
/proc/sys/portals/subsystem_debug and /proc/sys/portals/debug, should 
both be set to zero to totally turn of debugging?

In regard to /proc/sys/lustre/memused we see quite a variety of 
entries included many with negative values.  Does the negative value 
have a particular meaning?
For instance "cat /proc/sys/lustre/memused" for 9 nodes shows:
...
mg07  102186899
mg08  101775995
mg09  -1323553489
mg10  -1328553965
mg11  -1378379739
mg12  -1347059989
mg13  -1364717487
mg14  -1358477913
mg15  24680370
...

These are 16 core  machines with 64GB of resident memory.
--
Jan Julian     University of Alaska, ARSC    
mailto:julian-K5xIkVcbuEk@xxxxxxxxxxxxxxxx
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