[Devel] Re: [PATCH 1/6] BC: kconfig

[Alexey Dobriyan]

On Wed, Aug 23, 2006 at 03:01:55PM +0400, Kirill Korotaev wrote:
> --- ./kernel/bc/Kconfig.bckm
> +++ ./kernel/bc/Kconfig
> @@ -0,0 +1,25 @@
> +#
> +# Resource beancounters (BC)
> +#
> +# Copyright (C) 2006 OpenVZ. SWsoft Inc
> +
> +menu "User resources"
> +
> +config BEANCOUNTERS
> +	bool "Enable resource accounting/control"
> +	default n
> +	help 
> +          This patch provides accounting and allows to configure
> +          limits for user's consumption of exhaustible system resources.

If BC will be merged there will be no patch, so text should be
rewritten slightly.

> +          The most important resource controlled by this patch is 
> unswappable +          memory (either mlock'ed or used by internal kernel 
> structures and +          buffers). The main goal of this patch is to 
> protect processes
> +          from running short of important resources because of an 
> accidental
> +          misbehavior of processes or malicious activity aiming to 
> ``kill'' +          the system. It's worth to mention that resource limits 
> configured +          by setrlimit(2) do not give an acceptable level of 
> protection +          because they cover only small fraction of resources 
> and work on a +          per-process basis.  Per-process accounting doesn't 
> prevent malicious
> +          users from spawning a lot of resource-consuming processes.