when i run 60 umls in the same host with "mem=128M"
"free -m" says almost no free memory left.
if i run more, all umls got killed.
Now if i run uml with "mem=64M", was trying to run 100 umls, but still got terminated.
(our goal is to run 200 umls in each host, 4GB memory each host.)
(Also disk size is big enough, each rootfs is 0.1 G, 100 of umls is 10G)