From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zdenek Kabelac <zkabelac@redhat.com>
Subject: Re: Unable to deactivate lv,
	pehaps due to semaphore problem...
Date: Thu, 27 Nov 2014 16:43:22 +0100
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Dne 27.11.2014 v 16:36 Gianluca Cecchi napsal(a):
> On Thu, Nov 27, 2014 at 4:24 PM, Zdenek Kabelac <zkabelac@redhat.com
> <mailto:zkabelac@redhat.com>> wrote:
>
>
>
>     Ahh - I'd too strict  adblock filter - however passed info is not that useful.
>     Prefered output is   'lvchange -vvvv -an'
>
>
> Thanks!
> here it is:
> https://drive.google.com/file/d/0BwoPbcrMv8mvellaS1FtVXpqU2c/view?usp=sharing
>
>

Well yes - it shows the device is being held open - lvm2 retries to several 
times if the device does not get close - but it doesn't so it refuses o 
deactivate.

So if you are sure there is no user - then maybe you have some kpartx 
partition this device ?

I'd probably need to see your whole 'dmsetup table'
(at least do a grep for VG_AAA_TEMP/LV_AAA_TEMP minor)


>
>     You could 'complete' all cookies older then i.e. 1 minute.
>     Nothing should be holding cookie for that long time.
>
>
> So the command would be
>
> dmsetup udevcomplete_all 1
> correct?

Yes

Zdenek