Date: Sun, 6 Dec 2009 14:17:34 -0800
From: Greg KH <greg@kroah.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Andi Kleen <andi@firstfloor.org>,
       "lee.schermerhorn@hp.com" <lee.schermerhorn@hp.com>,
       "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>,
       LKML <linux-kernel@vger.kernel.org>, stable@kernel.org,
       Hugh Dickins <hugh.dickins@tiscali.co.uk>,
       Andrew Morton <akpm@linux-foundation.org>,
       Arjan van de Ven <arjan@linux.intel.com>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [stable] aim7 scalability issue on 4 socket machine
Message-ID: <20091206221734.GA22414@kroah.com>
References: <1253179879.2606.37.camel@ymzhang>
 <1253180411.8497.1.camel@twins>
 <Pine.LNX.4.64.0909171122180.25864@sister.anvils>
 <1253239339.2606.40.camel@ymzhang>
 <20090917195909.3a00ef83.akpm@linux-foundation.org>
 <Pine.LNX.4.64.0909180742500.14561@sister.anvils>
 <20090918000542.268934e1.akpm@linux-foundation.org>
 <20091206200833.GA2357@elf.ucw.cz>
 <20091206201136.GZ18989@one.firstfloor.org>
 <20091206211105.GA13917@elf.ucw.cz>
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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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