Xen devel - Jul 2009 - c/s 18634 causing save/restore problem

This on xen 3.4.0. We discovered that following would cause a PV guest (5u3) 
to panic:

     - xm save guest
     - xm restore guest
     - xm save guest again <-- panic  in _FIRST_CPU+0X0/0X1A

We''ve narrowed it down to c/s 18634. Now we''re trying to find
out why that
change was made? Was that fixing some other bug?

Thanks,
Mukesh

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On 17/07/2009 03:02, "Mukesh Rathor" <mukesh.rathor@oracle.com>
wrote:
> This on xen 3.4.0. We discovered that following would cause a PV guest
(5u3)
> to panic:
> 
>      - xm save guest
>      - xm restore guest
>      - xm save guest again <-- panic  in _FIRST_CPU+0X0/0X1A
> 
> We''ve narrowed it down to c/s 18634. Now we''re trying to
find out why that
> change was made? Was that fixing some other bug?
You should cc the patch contributor where possible. In this case it is Tim
Deegan (cc''ed) and the patch looks like a straightforward and obviously
correct bug fix to me, as pretty clearly explained in the changeset comment.

Perhaps it has revealed a latent bug elsewhere?

The patch is also in 3.3.1 by the way. Have you seen problems there too?

 -- Keir



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