linux-kernel - Re: mm: BUG in do_huge_pmd_wp

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Message-ID: <5179F0AC.5020501@oracle.com>
Date:	Thu, 25 Apr 2013 23:12:44 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Dave Jones <davej@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Minchan Kim <minchan@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Mel Gorman <mgorman@...e.de>,
	linux-mm <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: mm: BUG in do_huge_pmd_wp_page

On 04/25/2013 10:01 PM, Dave Jones wrote:
> On Thu, Apr 25, 2013 at 08:51:27PM -0400, Sasha Levin wrote:
>  > On 04/24/2013 06:46 PM, Andrew Morton wrote:
>  > > Guys, did this get fixed?
>  > 
>  > I've stopped seeing that during fuzzing, so I guess that it got fixed somehow...
> 
> We've had reports of users hitting this in 3.8
> 
> eg:
> https://bugzilla.redhat.com/show_bug.cgi?id=947985
> https://bugzilla.redhat.com/show_bug.cgi?id=956730 
> 
> I'm sure there are other reports of it too.
> 
> Would be good if we can figure out what fixed it (if it is actually fixed)
> for backporting to stable

If it's interesting to know I'll bisect it over the weekend...

Think it's enough to look at mm/ commits?


Thanks,
Sasha

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