From: Andrea Arcangeli <andrea@suse.de>
To: Chris Wright <chrisw@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, kenneth.w.chen@intel.com
Subject: Re: disable-cap-mlock
Date: Fri, 2 Apr 2004 03:35:47 +0200 [thread overview]
Message-ID: <20040402013547.GM18585@dualathlon.random> (raw)
In-Reply-To: <20040401173014.Z22989@build.pdx.osdl.net>
On Thu, Apr 01, 2004 at 05:30:14PM -0800, Chris Wright wrote:
> * Andrea Arcangeli (andrea@suse.de) wrote:
> > please elaborate how can you account for shmget(SHM_HUGETLB) with the
> > rlimit. The rlimit is just about the _address_space_ mlocked, there's no
> > way to account for something _outside_ the address space with the rlimit,
> > period. If you attempt doing that, _that_ will be THE true hack(tm) ;).
>
> Heh ;-) OK, here's the patch. When you setup the vmas for the huge pages
> account for them, when you tear them down, account for that as well.
> It's very possible that I've missed the obvious, but it at least pasts
what you missed is that after you locked_vm -= you don't free anything,
you only unmap them from the address space which means nothing in terms
of amount if pinned ram.
so patch is broken and insecure as far as I can tell.
next prev parent reply other threads:[~2004-04-02 1:38 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-01 13:59 disable-cap-mlock Andrea Arcangeli
2004-04-01 14:12 ` disable-cap-mlock Martin Zwickel
2004-04-01 16:48 ` disable-cap-mlock William Lee Irwin III
2004-04-01 16:59 ` disable-cap-mlock Andrea Arcangeli
2004-04-01 17:11 ` disable-cap-mlock Marc-Christian Petersen
2004-04-01 17:16 ` disable-cap-mlock William Lee Irwin III
2004-04-01 17:34 ` disable-cap-mlock Andrea Arcangeli
2004-04-01 17:38 ` disable-cap-mlock William Lee Irwin III
2004-04-01 17:42 ` disable-cap-mlock Andrea Arcangeli
2004-04-01 17:37 ` disable-cap-mlock Stephen Smalley
2004-04-01 17:44 ` disable-cap-mlock William Lee Irwin III
2004-04-01 17:49 ` disable-cap-mlock Andrea Arcangeli
2004-04-01 17:51 ` disable-cap-mlock William Lee Irwin III
2004-04-01 18:12 ` disable-cap-mlock William Lee Irwin III
2004-04-01 17:52 ` disable-cap-mlock Marc-Christian Petersen
2004-04-01 17:54 ` disable-cap-mlock William Lee Irwin III
2004-04-01 18:47 ` disable-cap-mlock Stephen Smalley
2004-04-01 19:26 ` disable-cap-mlock William Lee Irwin III
2004-04-01 20:23 ` disable-cap-mlock Marc-Christian Petersen
2004-04-01 21:13 ` disable-cap-mlock William Lee Irwin III
2004-04-01 21:31 ` disable-cap-mlock Marc-Christian Petersen
2004-04-01 18:34 ` disable-cap-mlock Andrew Morton
2004-04-01 18:49 ` disable-cap-mlock Andrea Arcangeli
2004-04-01 18:52 ` disable-cap-mlock Chen, Kenneth W
2004-04-01 18:59 ` disable-cap-mlock William Lee Irwin III
2004-04-01 19:27 ` disable-cap-mlock James Morris
2004-04-02 10:39 ` disable-cap-mlock Pavel Machek
2004-04-02 23:44 ` disable-cap-mlock William Lee Irwin III
2004-04-01 19:44 ` disable-cap-mlock Rik van Riel
2004-04-01 19:52 ` disable-cap-mlock Andrew Morton
2004-04-01 22:36 ` disable-cap-mlock Andrea Arcangeli
2004-04-01 22:43 ` disable-cap-mlock Marc-Christian Petersen
2004-04-01 23:08 ` disable-cap-mlock Rik van Riel
2004-04-01 23:26 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 0:59 ` disable-cap-mlock Chris Wright
2004-04-01 22:29 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 1:07 ` disable-cap-mlock Chris Wright
2004-04-02 1:18 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 1:30 ` disable-cap-mlock Chris Wright
2004-04-02 1:35 ` Andrea Arcangeli [this message]
2004-04-02 2:04 ` disable-cap-mlock Chris Wright
2004-04-02 2:13 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 2:21 ` disable-cap-mlock Chris Wright
2004-04-02 2:38 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 2:48 ` disable-cap-mlock Chris Wright
2004-04-02 1:30 ` disable-cap-mlock Andrew Morton
2004-04-02 1:59 ` disable-cap-mlock Chris Wright
2004-04-02 2:09 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 2:30 ` disable-cap-mlock Andrew Morton
2004-04-02 2:33 ` disable-cap-mlock Chris Wright
2004-04-02 2:45 ` disable-cap-mlock Andrew Morton
2004-04-02 2:51 ` disable-cap-mlock Chris Wright
2004-04-02 3:21 ` disable-cap-mlock William Lee Irwin III
2004-04-02 2:41 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 2:49 ` disable-cap-mlock Andrew Morton
2004-04-02 3:07 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 21:35 ` disable-cap-mlock Andrew Morton
2004-04-02 22:36 ` disable-cap-mlock Chris Wright
2004-04-02 22:56 ` disable-cap-mlock Andrea Arcangeli
2004-04-02 23:01 ` disable-cap-mlock Andrew Morton
2004-04-02 23:18 ` disable-cap-mlock Chris Wright
2004-04-05 12:13 ` disable-cap-mlock Stephen Smalley
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