linux-kernel - Re: Regression: x86/mm: new _PTE_SWP_SOFT_DIRTY bit conflicts with existing use

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Message-ID: <20130822054418.GE18673@moon>
Date:	Thu, 22 Aug 2013 09:44:18 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Dave Jones <davej@...hat.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Jan Beulich <JBeulich@...e.com>,
	Andy Lutomirski <luto@...capital.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Xen-devel@...ts.xen.org,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	Ingo Molnar <mingo@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dhillf@...il.com
Subject: Re: Regression: x86/mm: new _PTE_SWP_SOFT_DIRTY bit conflicts with
 existing use

On Wed, Aug 21, 2013 at 08:51:15PM -0400, Dave Jones wrote:
> 
> Could this explain what I'm seeing in another thread ?
> https://lkml.org/lkml/2013/8/7/27

Don't think so. This code is merged in -rc6, while your report is saying the
kernel version is -rc4 (also this feature requires CONFIG_MEM_SOFT_DIRTY
to be turned on, do you have it?).
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