Re: [Xen-users] problem with deleting the loopback files

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> No, DomU is not running any more. I just can not free the disk space
> allocated to the image files, even delete them.

Weird.

What kind of disk setup did you have?  PV guests?  HVM guests?  file: disks?

As Javier said, there must be something hanging about that's keeping 
references to those loop files around so that the OS can't safely deallocate 
the space.

What output does losetup --all give you?

In any case, rebooting dom0 will solve this, but there should be a way to do 
this without restarting the system if you need it to stay online.  It would 
be helpful to figure out what caused it, in case it's a bug somewhere.  I've 
not heard of this problem before!

Cheers,
Mark

> Thanks for reply.
>
> On Thu, Mar 13, 2008 at 12:29 PM, Javier Guerra <javier@xxxxxxxxxxx> wrote:
> > On 3/12/08, Jia Rao <rickenrao@xxxxxxxxx> wrote:
> > > Hi all,
> > >
> > > I created the disk spaces for VMs using loopback files. However I got a
> > > strange problem. When I deleted the loopback file for the virtual
> >
> > machine to
> >
> > > free some disk space for the physical machine, it turned out that after
> > > deletion,  the free disk space is not increased.
> >
> > are the DomU's still running? on unix systems when you delete a file,
> > it's not really deleted until no process has it open.
> >
> > --
> > Javier



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