linux-kernel - Trinity and mbind flags (WAS: Re: mm: BUG in unmap_page

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Message-ID: <54105F28.1000506@oracle.com>
Date:	Wed, 10 Sep 2014 10:24:40 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Dave Jones <davej@...hat.com>
CC:	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Jones <davej@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Cyrill Gorcunov <gorcunov@...il.com>
Subject: Trinity and mbind flags (WAS: Re: mm: BUG in unmap_page_range)

On 09/10/2014 08:47 AM, Mel Gorman wrote:
> That site should have checked PROT_NONE but it can't be the same bug
> that trinity is seeing. Minimally trinity is unaware of MPOL_MF_LAZY
> according to git grep of the trinity source.

Actually, if I'm reading it correctly I think that Trinity handles mbind()
calls wrong. It passes the wrong values for mode flags and actual flags.


Thanks,
Sasha
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