RE: [Xen-users] Problems saving domain

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Artur Linhart - Linux communication
> Sent: 07 March 2007 10:55
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Problems saving domain
> 
> Hello,
> 
>  
> 
>             I have the problems if I want to save the running 
> domU on Xen 3.0.4.1 - the save always fails. In the xen log 
> there i found following debug info:
> 
>  
> 
> [2007-03-07 11:19:10 xend 3396] DEBUG (XendCheckpoint:80) 
> [xc_save]: /usr/lib64/xen/bin/xc_save 18 5 0 0 0
> 
> [2007-03-07 11:19:10 xend.XendDomainInfo 3396] DEBUG 
> (XendDomainInfo:731) Storing domain details: 
> {\047console/port\047: \0473\047, \047name\047: 
> \047migrating-vm_w2ksrv_01\047, \047console/limit\047: 
> \0471048576\047, \047vm\047: 
> \047/vm/8645c693-e2c4-0d28-c0dc-2a2ae3781546\047, 
> \047domid\047: \0475\047, \047cpu/0/availability\047: 
> \047online\047, \047memory/target\047: \047200704\047, 
> \047store/ring-ref\047: \04750174\047, \047store/port\047: \0472\047}

Does vm_w2ksrv_01 mean that this is a Windows guest -> a HVM guest? In
that case it's not "supposed to work". The code to implement HVM
save/restore was introduced into unstable a few weeks back. It works
most of the time at present, but there are a few bugs to fix still - in
particular, fixing that a domain may be in the middle of a IO
transaction when it gets stopped - the current code in xen-unstable
isn't coping with this very well... There is work in progress to fix
this... I think this is a "required" feature for 3.0.5, so 3.0.5 should
have working save/restore - Live migration may or may not be included in
that. 

--
Mats

--
Mats



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