On Mon, 5 Oct 2009, Julian Elischer wrote:

Tom Judge wrote:
Adam Vande More wrote:
On Mon, Oct 5, 2009 at 12:47 PM, Tom Judge <t...@tomjudge.com <mailto:t...@tomjudge.com>> wrote:


    Julian Elischer wrote:

        Tom Judge wrote:

            Hi,

            Does anyone know of a patch that will add per jail memory
            limits so that a jail can't swallow the resources of the
            entire box?


            Thanks

            Tom

        not yet..


    I started to port this to 7.1 today:

    http://wiki.freebsd.org/JailResourceLimits


    What are the peoples opinions on this patch?


    Tom


If you're soliciting opinions if this will be used and is needed, I would love to see this functionality. This is the main reason I've had to chose XEN over jails. If you need some help testing, let me know.

--
Adam Vande More
Hi Adam,

I have a patch against 7.1 here: http://svn.tomjudge.com/freebsd/patches/jail-resource-limits/jail-limits.patch



probably the person who should work with this in -current is james (CC'd)

Probably the person who should be contacted is trasz who worked on
hierachical resource limit per .., jail in p4.  Though this is
slightly different.

I think it's ok if people need those things to update the pathes but I
doubt any will probably ever make it into FreeBSD as those things are kind
of contrary to the V_ plans.

BTW, I think the patch referenced is not the latest I had seen and I
thought that we also had one for 7.x or even for 8 already floating around.
Maybe some investigation on list archives etc. might be helpful before
starting to hack things.  Maybe also check the links on
http://wiki.freebsd.org/Jails




I will try to bring the patch up to current when I get a chance but I have no real need to do this as we use 7.1 in production.

Notes:

* CPU limiting is not support is not supported unless you use shecd_4bsd. * I have not tested this on any system yet, just compile tested, I am putting it though its paces right now.

Tom

--
Bjoern A. Zeeb         It will not break if you know what you are doing.
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