linux-kernel - Re: [stable] aim7 scalability issue on 4 socket machine

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Message-ID: <20091206221734.GA22414@kroah.com>
Date:	Sun, 6 Dec 2009 14:17:34 -0800
From:	Greg KH <greg@...ah.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Andi Kleen <andi@...stfloor.org>,
	"lee.schermerhorn@...com" <lee.schermerhorn@...com>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>, stable@...nel.org,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [stable] aim7 scalability issue on 4 socket machine

On Sun, Dec 06, 2009 at 10:11:05PM +0100, Pavel Machek wrote:
> On Sun 2009-12-06 21:11:36, Andi Kleen wrote:
> > >  - It must be obviously correct and tested.
> > >  - It cannot be bigger than 100 lines, with context.
> > >  - It must fix only one thing.
> > >  - It must fix a real bug that bothers people (not a, "This could be a
> > >    problem..." type thing).
> > 
> > A significant slow down in a common situation is a "significant
> > bug that bothers people"
> 
> Well, IIRC it was benchmark that was slowed down, on huge system, so
> it was exactly "this could be a problem".
> 
> Anyway, I don't care about -stable series too much (and sorry for
> replying to such an old mail), but perhaps the docs should be updated?
> 
> Examples cited there are such as "data corruption" or "oops", which is
> clearly different ballpark then "slowdown".

Why does it really matter if the intent is the thing that matters here.

Deal with specifics on a case-by-case basis, and if you don't really
care about this, then why dig up a many-month old thread?

strange,

greg k-h
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