[uml-user] what are the current limits on how many uml's on one host?

[David L. <da...@la...>]

I foolishly attempted to startup 25 uml instances on one system (dual 252 
opterons with 8G of ram, each um instance getting 256M)

what I found was that they seem to be getting in each others way a LOT 
(just on system boot), vmstat on the host is showing almost all of the cpu 
time (80%+) being spent in the system, not in userspace (which surprised 
me)

so before I spend much time gathering info to try and debug this I wanted 
to ask what the current limits are, and if the limits should just be cpu 
and ram, then I'll do more digging to find out what's happening in my 
case.

I definantly have some oddities among the 25, two of the 25 did not get 
far enough to use their cow files (20K each according to ls -ls) and when 
I connect to them via uml_mconsole it hangs when I issue any command 
(including help)

I'm working from home so I won't see the consoles until I get in on 
monday, so I'll give more details then unless I'm told that I am being 
silly to try to start this many on one system.

David Lang