From: Andrew Morton <akpm@linux-foundation.org>
To: Dan Aloni <da-x@monatomic.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: thread stacks and strict vm overcommit accounting
Date: Thu, 15 Mar 2007 11:06:21 -0800 [thread overview]
Message-ID: <20070315110621.9a9defaf.akpm@linux-foundation.org> (raw)
In-Reply-To: <20070313163320.GA28104@localdomain>
> On Tue, 13 Mar 2007 18:33:20 +0200 Dan Aloni <da-x@monatomic.org> wrote:
> Hello,
>
> This question is relevent to 2.6.20.
>
> I noticed that if the RSS for the stack size is say, 8MB, running
> a single-threaded process doesn't incur an increase of 8MB to
> Committed_AS (/proc/meminfo).
>
> However, on multi-threaded apps linked with pthread (on Debian
> Etch with 2.6.20 vanilla x86_64), every thread will incur the
> the specified maximum stack size RSS (assuming that you use
> the default attr). In other words, it appears that vm accounting
> works differently in that case.
>
> Is this the intended behaviour?
That sounds like a bug to me.
next prev parent reply other threads:[~2007-03-15 19:06 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 [this message]
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
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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