From: Shantanu Goel <sgoel01@yahoo.com>
To: Andrew Morton <akpm@osdl.org>,
Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: sgoel01@yahoo.com, linux-kernel@vger.kernel.org
Subject: Re: 2.6.6-rc{1,2} bad VM/NFS interaction in case of dirty page writeback
Date: Tue, 27 Apr 2004 04:44:37 -0700 (PDT) [thread overview]
Message-ID: <20040427114437.66819.qmail@web12824.mail.yahoo.com> (raw)
In-Reply-To: <20040426225834.7035d2c1.akpm@osdl.org>
--- Andrew Morton <akpm@osdl.org> wrote:
> Trond Myklebust <trond.myklebust@fys.uio.no> wrote:
> >
> >
> > Err... Anything that currently ends up calling
> writepage() and returning
> > WRITEPAGE_ACTIVATE. This is a problem that you
> believe you are seeing
> > the effects of, right?
>
> I didn't report the problem - Shantanu is reporting
> problems where all the
> NFS pages are stuck on the active list and the VM
> has nothing to reclaim on
> the inactive list.
>
Yup, what happens is the NFS writepage() returns
WRITEPAGE_ACTIVATE causing the scanner to place the
page at the head of the active list. Now the page
won't be reclaimed until the scanner has run through
the entire active list. I do not see such behaviour
with ext3 for instance.
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next prev parent reply other threads:[~2004-04-27 11:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-27 1:12 Shantanu Goel
2004-04-27 2:15 ` Andrew Morton
2004-04-27 3:11 ` Trond Myklebust
2004-04-27 3:59 ` Andrew Morton
2004-04-27 5:23 ` Trond Myklebust
2004-04-27 5:58 ` Andrew Morton
2004-04-27 11:44 ` Shantanu Goel [this message]
2004-04-27 15:36 ` Trond Myklebust
2004-04-28 0:47 ` Shantanu Goel
2004-04-28 1:02 ` Andrew Morton
2004-04-28 1:28 ` Trond Myklebust
2004-04-28 1:38 ` Andrew Morton
2004-04-28 5:29 ` Christoph Hellwig
2004-04-28 16:17 ` Trond Myklebust
2004-04-28 16:38 ` Christoph Hellwig
2004-04-28 19:07 ` Andrew Morton
2004-04-29 1:48 ` Nathan Scott
2004-04-29 8:27 ` Christoph Hellwig
2004-04-27 6:10 ` Nick Piggin
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