[Xen-devel] Backend device in use after reboot

[Steve Dobbelstein <steved@xxxxxxxxxx>]

Our test setup uses LVM logical volumes as backend devices for the domUs.
For example, the configuration file for the first domU says:
disk = ['phy:/dev/virt-blkdev-backend/dom1,sda1,w',
'phy:/dev/virt-blkdev-backend/usr,sda2,r']

The configuration files for the domUs also have:
on_poweroff = 'destroy'
on_reboot   = 'destroy'
on_crash    = 'destroy'

The testing framework typically destroys and recreates the LVM volumes for
the domUs for a run of tests.

However, when the system hangs (domU down, dom0 down, network down, can
reboot from Xen console, but that's another problem) and the system is
rebooted, I cannot destroy the LVM volumes because they are in use.  No
domUs are started after the reboot.

What is holding onto the LVM volumes?  Is there a way to get them released?
Am I missing something?  Or is this a bug?

Thanks for any help.

Steve D.


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