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Date: Mon, 25 Jun 2012 15:51:28 -0500
From: Ben Myers <bpm@sgi.com>
Subject: Re: Strange case of deleting lots of files and "df" not
	recognizing it....(unless I umount/mount) the disk...
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	<20120625090211.3c5c2032@galadriel.home>
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To: Emmanuel Florac <eflorac@intellique.com>
Cc: xfs-oss <xfs@oss.sgi.com>

On Mon, Jun 25, 2012 at 09:02:11AM +0200, Emmanuel Florac wrote:
> Le Sun, 24 Jun 2012 22:58:12 -0700 vous =E9criviez:
> =

> > So when does it actually synchronize w/o me forcing it?  (I.e.
> > umount/mount)?
> > =

> =

> Yes, it happens sometimes and a umount/mount is needed to fix it.

You may find that this will get the job done:
echo 3 > /proc/sys/vm/drop_caches

-Ben

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