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From: Shaohua Li <shaohua.li@intel.com>
To: Christoph Lameter <clameter@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
	lkml <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC] some page can't be migrated
Date: Fri, 25 Jan 2008 11:18:16 +0800	[thread overview]
Message-ID: <1201231096.28282.5.camel@sli10-desk.sh.intel.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0801241911470.31975@schroedinger.engr.sgi.com>


On Thu, 2008-01-24 at 19:12 -0800, Christoph Lameter wrote:
> On Fri, 25 Jan 2008, Shaohua Li wrote:
> 
> > the page is still in lru list. Memory hot remove will try to migrate the
> > page.
> 
> So this is an abandoned page with a refcount that only exists because of 
> fs private data?
Yes, this is what I observed.

> Truncate race?
truncate_complete_page could fail to remove fs private data, this is the
comments say.

Thanks,
Shaohua


  reply	other threads:[~2008-01-25  3:17 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-23  6:22 Shaohua Li
2008-01-25  3:03 ` Nick Piggin
2008-01-25  3:09   ` Christoph Lameter
2008-01-25  3:09   ` Shaohua Li
2008-01-25  3:12     ` Christoph Lameter
2008-01-25  3:18       ` Shaohua Li [this message]
2008-01-25  5:20     ` Nick Piggin
2008-01-25  3:37 ` Christoph Lameter
2008-01-25  3:59   ` Shaohua Li
2008-01-25  4:01     ` Christoph Lameter
2008-01-25  4:17       ` Nick Piggin
2008-01-25  4:42         ` Christoph Lameter
2008-01-25  6:03         ` Shaohua Li
2008-01-27  6:03           ` Andrew Morton
2008-01-28  1:43             ` Nick Piggin
2008-01-28  1:48               ` Shaohua Li
2008-01-28 19:09             ` Christoph Lameter
2008-01-28 23:17             ` Christoph Lameter

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