linux-kernel - Re: [NEW]: Introducing shrink_all

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAFLxGvwJCMoiXFn3OgwiX+B50FTzGZmo6eG3xQ1KaPsEVZVA1g@mail.gmail.com>
Date:	Sun, 15 Apr 2012 12:38:36 +0200
From:	richard -rw- weinberger <richard.weinberger@...il.com>
To:	PINTU KUMAR <pintu_agarwal@...oo.com>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"pintu.k@...sung.com" <pintu.k@...sung.com>
Subject: Re: [NEW]: Introducing shrink_all_memory from user space

On Sun, Apr 15, 2012 at 11:47 AM, PINTU KUMAR <pintu_agarwal@...oo.com> wrote:
> Please provide your valuable feedback and suggestion.

This is fundamentally flawed.
You're assuming that only one program will use this interface.
Linux is a multi/user-tasking system

If we expose it to user space *every* program/user will try too free
memory such that it
can use more.
Can you see the problem?

-- 
Thanks,
//richard
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/