From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Sat, 3 Apr 2010 15:29:11 +0100
From: Alasdair G Kergon <agk@redhat.com>
Message-ID: <20100403142911.GZ11377@agk-dp.fab.redhat.com>
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Subject: Re: [linux-lvm] confusing error message from lvm2
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To: "K. Richard Pixley" <rich@noir.com>
Cc: linux-lvm@redhat.com

On Fri, Apr 02, 2010 at 01:29:55PM -0700, K. Richard Pixley wrote:
>  Path /dev/ACTION=_change_ no longer valid for device(252,7)

Have you customised any udev rules?

Monitor /dev carefully and investigate where those entries are coming from.

Aladsair