RE: [Xen-devel] Backend device in use after reboot

[Adam Heath <adam@xxxxxxxxxx>]

On Thu, 10 Nov 2005, Wensheng Wang wrote:

> > 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.
>
> I actually saw this too.
> The domains that by xendomains (that have config file in /etc/xen/auto
> at boot when xendomains started) will be shutdown (gracefully  as
> appose to poweroff/destroy) during domain-0 shutdown, and will come up
> normally when server rebooted.
>
> However if I add a new config file to /etc/xen/auto and xm create a
> new domain, this domain will not be shutdown by xendomains during
> server shutdown, and when server come back it has trouble start this
> domain because it device in use( will shown can not connect to device
> in xend.log).  Do a xm list showing this domain in r or p state. I
> have to xm destroy it before I can xm create it again.
>
> I say it's bug and should be fixed.  xendomains should shutdown all
> running domainU instead of just ones it started.

The better fix is to have xm learn about /etc/xen/auto, and get rid of the
xendomains init script.

xm create -a

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