From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Dan Aloni <da-x@monatomic.org>,
linux-kernel@vger.kernel.org
Subject: Re: thread stacks and strict vm overcommit accounting
Date: Fri, 16 Mar 2007 01:31:44 +0000 [thread overview]
Message-ID: <20070316013144.0d81c72d@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.64.0703152258530.9602@blonde.wat.veritas.com>
> > > With a typical size as a fuzz factor preaccounted in later kernels.
> >
> > Where's that done?
>
> I don't know what Alan is referring to there.
fs/exec.c - we add 20 pages to the stack vma size initially.
> We've no more committed to providing each instance with 8MB of stack,
> than we've committed to providing each instance with RLIMIT_AS of
> address space. The rlimits are limits, not commitments, surely?
Yes, its just that the C programming language is utterly and
mindbogglingly broken when it comes to resource exhaustion for the stack.
Alan
next prev parent reply other threads:[~2007-03-16 0:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-13 16:33 thread stacks and strict vm overcommit accounting Dan Aloni
2007-03-15 19:06 ` Andrew Morton
2007-03-15 20:37 ` Hugh Dickins
2007-03-15 20:59 ` Ulrich Drepper
2007-03-15 23:33 ` Alan Cox
2007-03-15 22:36 ` Andrew Morton
2007-03-15 23:08 ` Hugh Dickins
2007-03-16 1:31 ` Alan Cox [this message]
2007-03-16 14:43 ` Jakub Jelinek
2007-03-15 23:42 ` Dan Aloni
2007-03-16 4:29 ` KAMEZAWA Hiroyuki
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