Date: Wed, 21 Apr 2010 18:58:52 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Hedi Berriche <hedi@sgi.com>
Cc: Mike Travis <travis@sgi.com>, Ingo Molnar <mingo@elte.hu>,
       Greg Kroah-Hartman <gregkh@suse.de>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Jack Steiner <steiner@sgi.com>,
       Andrew Morton <akpm@linux-foundation.org>, Robin Holt <holt@sgi.com>,
       LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Patch 1/1] init: Provide a kernel start parameter to increase
 pid_max v2
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On Wed, 21 Apr 2010 17:59:34 +0100
Hedi Berriche <hedi@sgi.com> wrote:

> On Wed, Apr 21, 2010 at 10:20 Alan Cox wrote:
> | > of 32k will not be enough.  A system with 1664 CPU's, there are 25163 processes
> | > started before the login prompt.  It's estimated that with 2048 CPU's we will pass
> | 
> | Is that perhaps the bug not the 32K limit?
> 
> Doubt it: I just checked on an *idle* 1664 CPUs system and I can see 26844
> tasks, all but few being kernel threads.

So why have we got 26844 tasks. Isn't that a rather more relevant
question.

And as I asked before - how does Tejun's work on sanitizing work queues
affect this ?

Alan
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