From: Marian Csontos <mcsontos@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>,
me@mooluv.com
Subject: Re: [linux-lvm] lvm Bug? - bad reaction to snapshot creation
Date: Mon, 09 Jun 2014 12:08:58 +0200 [thread overview]
Message-ID: <539587BA.3040500@redhat.com> (raw)
In-Reply-To: <53958348.3000501@redhat.com>
On 06/09/2014 11:50 AM, Zdenek Kabelac wrote:
> Dne 7.6.2014 01:26, Leeman Strout napsal(a):
>>
>> Creating a snapshot throws an error "Attempted to decrement suspended
>> device
>> counter below zero." but succeeds. Removing the snapshot fails,
>> attempting a
>> 2nd time succeeds. Somewhere in this process the original LV gets
>> locked and
>> the system needs to be restarted to unlock it. As explained below this
>> happens intermittently but regularly.
>>
>>
>> Any additional info please let me know directly, I am not a subscriber,
>
>
> Hi
>
>
> Unsure if this relates to all your problem (since I'm not sure how arch
> linux
> is in sync with udev rules & systemd version)
>
> At certain moment systemd added a new 'feature' about locking devices
> while
> updating internal udev state - this locking ignores any udev rule flags
> and opens internal lvm2 devices - so while for now it's been again
> disabled for 'dm' devices - you might have installed version of system
> which has the 'lock everything' feature in?
>
> Thought this doesn't explain your 'counter below zero' error - this
> looks like
> some incorrect udev rules are running in the field ?
> (Or maybe multiple systemd-udevd are running ?)
There is also a recent BZ against RHEL7:
https://bugzilla.redhat.com/show_bug.cgi?id=1105732
What are the devices used in the stack?
-- Martian
>
> Zdenek
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
next prev parent reply other threads:[~2014-06-09 10:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-06 23:26 [linux-lvm] lvm Bug? - bad reaction to snapshot creation Leeman Strout
2014-06-09 9:50 ` Zdenek Kabelac
2014-06-09 10:08 ` Marian Csontos [this message]
2014-06-09 14:55 ` Leeman Strout
2014-06-09 14:53 ` Leeman Strout
2014-06-10 7:58 ` Zdenek Kabelac
2014-06-10 13:45 ` Leeman Strout
2014-06-10 15:22 ` Leeman Strout
2014-06-11 7:59 ` Christian Hesse
2014-06-10 8:31 ` Zdenek Kabelac
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