Practical limit to number of jails on a given host?

[Steven Hartland]

----- Original Message ----- 
From: "Doug Barton" <dougb at FreeBSD.org>
 
> So first question is, is there some sort of hard-coded limit somewhere?
> If not, what is the largest number of jails that you've created
> successfully/reliably on a system, and what are the specs for that system?

We happilly run up ~80 single process jails on 24 core machines without issue.

One thing to be aware of is the issue with prison0->uref becoming 0 and panicing
the machine if a fix for this hasnt been commited yet.

If you need a working patch for this I can provide one.

    Regards
    Steve

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