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From: Ingo Molnar <mingo@elte.hu>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"yinghai@kernel.org" <yinghai@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Greg KH <gregkh@suse.de>,
	"lkml20101129@newton.leun.net" <lkml20101129@newton.leun.net>,
	stable kernel team <stable@kernel.org>,
	Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Subject: Re: [PATCH urgent] x86: Save cr4 to mmu_cr4_features at boot time
Date: Mon, 4 Apr 2011 18:25:16 +0200	[thread overview]
Message-ID: <20110404162516.GA31241@elte.hu> (raw)
In-Reply-To: <alpine.DEB.2.00.1104041616550.16492@kaball-desktop>


* Stefano Stabellini <stefano.stabellini@eu.citrix.com> wrote:

> On Mon, 4 Apr 2011, Ingo Molnar wrote:
> > 
> > * Stefano Stabellini <stefano.stabellini@eu.citrix.com> wrote:
> > 
> > > Just to clarify the situation the patch "x86-64: finish cleanup_highmaps()'s 
> > > job wrt. _brk_end" was backported to the stable trees [...]
> > 
> > There's no commit with such a title upstream - there's not even one that is 
> > close. Could you cite the sha1 you refer to?
> 
> The commit id upstream is 498343967613183611ac37dccb2846496d954c06

That commit is from the v2.6.30 era:

 |
 | commit 498343967613183611ac37dccb2846496d954c06
 | Author:     Jan Beulich <jbeulich@novell.com>
 | AuthorDate: Wed May 6 13:06:47 2009 +0100
 | Commit:     H. Peter Anvin <hpa@zytor.com>
 | CommitDate: Thu May 7 21:51:34 2009 -0700
 |
 |    x86-64: finish cleanup_highmaps()'s job wrt. _brk_end
 |

... i.e. the bug is almost 2 years and 8 -stable cycles old!

Peter very consciously did not mark the fix for this commit as -stable 
material. It was ineligible for -stable for multiple reasons: it by no means 
fixed a 2.6.39 regression and the fix was literally just a few days old.

Thanks,

	Ingo

  reply	other threads:[~2011-04-04 16:25 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-31 16:38 [PATCH urgent] x86: Save cr4 to mmu_cr4_features at boot time Stefano Stabellini
2011-04-01  6:23 ` Ingo Molnar
2011-04-01 11:30   ` Stefano Stabellini
2011-04-01 18:51     ` H. Peter Anvin
2011-04-01 19:08     ` Ingo Molnar
2011-04-01 20:59       ` [stable] " Greg KH
2011-04-01 22:57       ` Stefano Stabellini
2011-04-04 15:11         ` Ingo Molnar
2011-04-04 15:47           ` Stefano Stabellini
2011-04-04 16:25             ` Ingo Molnar [this message]
2011-04-05  6:29               ` Rafael J. Wysocki
2011-04-05  6:37                 ` H. Peter Anvin
2011-04-05  6:43                   ` Rafael J. Wysocki
2011-04-05  6:55                     ` H. Peter Anvin
2011-04-05 23:47                     ` H. Peter Anvin
2011-04-06  4:34                       ` Rafael J. Wysocki
2011-04-06  4:45                         ` H. Peter Anvin
2011-04-11 23:04   ` Greg KH

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