I have read IBM documentation on rss , rss_hard and stack stack_hard
but unable to understand it.

If value of rss = 65536
rss_hard = 65536
stack = 32767
stack_hard = 32767
data = 491519
data_hard = 491519

for user vkgtry1

% ulimit -Ha
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 245760
stack(kbytes) 16384
memory(kbytes) 32768
coredump(blocks) 1000
nofiles(descriptors) 2500

Then what would be memory location / use effect of program / processed
used by user vkgtry1 under AIX 5.2 ML01?

Thanks,
VKG