From: Christoph Lameter <clameter@sgi.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: Race in pagevec_strip?
Date: Thu, 16 Mar 2006 16:50:08 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0603161644510.4748@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0603162000380.25033@goblin.wat.veritas.com>
On Thu, 16 Mar 2006, Hugh Dickins wrote:
> On Thu, 16 Mar 2006, Hugh Dickins wrote:
> >
> > I can't see what protects the default drop_buffers case against this,
> > so can't argue that it's an XFS problem.
>
> But I should add, I don't see what might be racing with what on the
> same page, to cause the problem in practice.
The page is on the inactive list at the time pagevec_strip is called
(see refill_inactive_zone). So kswapd could get to it. Could filesystems
get to the page via the mapping?
next prev parent reply other threads:[~2006-03-17 0:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-16 18:36 Christoph Lameter
2006-03-16 18:57 ` Christoph Lameter
2006-03-16 19:44 ` Hugh Dickins
2006-03-16 19:49 ` Christoph Lameter
2006-03-16 20:02 ` Hugh Dickins
2006-03-17 0:50 ` Christoph Lameter [this message]
2006-03-17 18:05 ` Hugh Dickins
2006-03-17 18:11 ` Christoph Lameter
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