Re: [Vserver] setting /proc/sys/kernel/shmmax on the guest

From: Herbert Poetzl <herbert_at_13thfloor.at>
Date: Mon 01 Jan 2007 - 14:19:57 GMT
Message-ID: <20070101141957.GA27407@MAIL.13thfloor.at>

On Mon, Jan 01, 2007 at 02:05:30PM +0100, william Famy wrote:
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> To begin with Happy new year to every vserver guy.

and a happy new year to you too ...

> I have to extand the shmmax for my guest but I do not manage to do it.
>
> cat /proc/sys/kernel/shmmax
> 134217728
> I have tried the /etc/vserver/host/rlimits
> I have tried to add bcapability
> but I do not manage to go ahead with it.
>
> I've run under 2.6.19.1 with the last devel vserver patch under debian
> etch as host.
>
> Could somebody tell me how to modify the guest config to execute "echo
> 134217728 /proc/sys/kernel/shmmax " for my guest.

as 2.6.19.x incorporates the mainline namespace
stuff, you have to set those values from one of
the early guest startup script (e.g. prepre-start)
while you still have 'enough' capabilities ...

also using the sysctl interface instead of the
deprecated procfs one (which might as well be
hidden away :) is advised ...

maybe special tool support will be added soon,
so please double check with the tool maintainers

HTH,
Herbert

> Thanks for any help.
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Received on Mon Jan 1 14:32:21 2007

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