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
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