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Re: [linux-lvm] lvm Bug? - bad reaction to snapshot creation



Dne 9.6.2014 16:53, Leeman Strout napsal(a):
On 06/09/2014 05:50 AM, Zdenek Kabelac wrote:
Dne 7.6.2014 01:26, Leeman Strout napsal(a):
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?
systemd 213-6 is what Arch reports, as far as I can tell from the PKGBUILD
it's vanilla 213 plus 2 patches:
- backport fix for faily MACAddress matching (FS#40675)
- backport fix for fsck/udev mess (FS#40706)


this commit should be fixing problems for lvm2 & latest systemd:

e918a1b5a94f270186dca59156354acd2a596494

and this is systemd commit which has introduced problem:

3d06f4183470d42361303086ed9dedd29c0ffc1b

Unsure what do you have in your arch build.

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 ?)
After a clean restart of everything twice without doing snapshots, the initial
lvcreate does not have the 'counter below zero' error.  And with special
attention to make sure the snapshots are cleaned up prior to attempting a new
snapshot I am not getting this initial decrement on lvcreate.

So could we consider this  'counter' case is solved ?

Zdenek


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