Xen 3.2 - 32-on-64 save/restore

Xen 3.2 - 32-on-64 save/restore

[Sébastien RICCIO]

Hello,

I am trying the unstable 3.2 version of Xen and would like to know
if the save/restore/migration feature is supposed to work in the current
build ?

Actually if I try to save a 32bit dom U it throws this error:

[root@xen03 /]# xm save web-test web-test.save
Error: /usr/lib64/xen/bin/xc_save 24 17 0 0 0 failed

Thanks for your answers.

Kind regards,

-- 
Sébastien Riccio
SwissCenter / OpenBusiness SA
sr@openbusiness.com
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Re: Xen 3.2 - 32-on-64 save/restore

[Keir Fraser]

Is any information dumped in /var/log/xen/xend.log?

 -- Keir

On 30/11/07 12:10, "Sébastien RICCIO" <sr@swisscenter.com> wrote:

> Hello,
> 
> I am trying the unstable 3.2 version of Xen and would like to know
> if the save/restore/migration feature is supposed to work in the current
> build ?
> 
> Actually if I try to save a 32bit dom U it throws this error:
> 
> [root@xen03 /]# xm save web-test web-test.save
> Error: /usr/lib64/xen/bin/xc_save 24 17 0 0 0 failed
> 
> Thanks for your answers.
> 
> Kind regards,

Re: Xen 3.2 - 32-on-64 save/restore

[Sébastien RICCIO]

Hi Keir,

Thanks for your answer.

When I usse a "xm save web-test web-test.save", xendl.log says:

[2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:89) [xc_save]: 
/usr/lib64/xen/bin/xc_save 24 18 0 0 0
[2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:336) suspend
[2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:92) In saveInputHandler 
suspend
[2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:94) Suspending 18 ...
[2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:467) 
XendDomainInfo.shutdown(suspend)
[2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1085) 
XendDomainInfo.handleShutdownWatch
[2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1085) 
XendDomainInfo.handleShutdownWatch
[2007-11-30 15:04:49 3604] INFO (XendDomainInfo:1270) Domain has 
shutdown: name=migrating-web-test id=18 reason=suspend.
[2007-11-30 15:04:49 3604] INFO (XendCheckpoint:99) Domain 18 suspended.
[2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:107) Written done
[2007-11-30 15:04:49 3604] ERROR (XendCheckpoint:141) Save failed on 
domain web-test (18).
Traceback (most recent call last):
  File "//usr/lib64/python/xen/xend/XendCheckpoint.py", line 109, in save
    forkHelper(cmd, fd, saveInputHandler, False)
  File "//usr/lib64/python/xen/xend/XendCheckpoint.py", line 353, in 
forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 24 18 0 0 0 failed
[2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1917) 
XendDomainInfo.resumeDomain(18)
[2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1947) 
XendDomainInfo.resumeDomain: completed
[2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:144) 
XendCheckpoint.save: resumeDomain

After, in xm list, it shows it again as runnning, but the Time(s) grow 
quickly.

web-test                                    18   512     4     r-----    
273.1

30 secondes after

web-test                                    18   512     4     r-----    
437.0

etc...

(the virtual machine is not used for anything yet)

Trying to xm console web-test also doesn't work anymore (frozen console)

Kind regards,

-- 
Sébastien Riccio
SwissCenter / OpenBusiness SA
sr@openbusiness.com







Keir Fraser a écrit :
> Is any information dumped in /var/log/xen/xend.log?
>
>  -- Keir
>
> On 30/11/07 12:10, "Sébastien RICCIO" <sr@swisscenter.com> wrote:
>
>   
>> Hello,
>>
>> I am trying the unstable 3.2 version of Xen and would like to know
>> if the save/restore/migration feature is supposed to work in the current
>> build ?
>>
>> Actually if I try to save a 32bit dom U it throws this error:
>>
>> [root@xen03 /]# xm save web-test web-test.save
>> Error: /usr/lib64/xen/bin/xc_save 24 17 0 0 0 failed
>>
>> Thanks for your answers.
>>
>> Kind regards,
>>     
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
>
>   

Re: Xen 3.2 - 32-on-64 save/restore

[Sébastien RICCIO]

Hi Kurt,

Thank for this information. I will check on monday if the patches do the
"trick" :-)

King regards,

-- 
 Sébastien Riccio
 SwissCenter / OpenBusiness SA
 sr@openbusiness.com



Kurt Hackel wrote:
> Hi,
>
> We had some fixes for 32bit pv save/restore/migrate that went into
> our product (3.1.1 based), but I've been slow to get the patches out :(
> Presumably you're hitting the same the same thing with 3.2, though you
> have a 64bit dom0.  I'll try to submit everything to the list this
> weekend so you won't have to dig through our source rpms.
>
> Thanks
> kurt
>
> On Fri, Nov 30, 2007 at 03:09:13PM +0100, Sébastien RICCIO wrote:
>   
>> Hi Keir,
>>
>> Thanks for your answer.
>>
>> When I usse a "xm save web-test web-test.save", xendl.log says:
>>
>> [2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:89) [xc_save]: 
>> /usr/lib64/xen/bin/xc_save 24 18 0 0 0
>> [2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:336) suspend
>> [2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:92) In saveInputHandler 
>> suspend
>> [2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:94) Suspending 18 ...
>> [2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:467) 
>> XendDomainInfo.shutdown(suspend)
>> [2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1085) 
>> XendDomainInfo.handleShutdownWatch
>> [2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1085) 
>> XendDomainInfo.handleShutdownWatch
>> [2007-11-30 15:04:49 3604] INFO (XendDomainInfo:1270) Domain has shutdown: 
>> name=migrating-web-test id=18 reason=suspend.
>> [2007-11-30 15:04:49 3604] INFO (XendCheckpoint:99) Domain 18 suspended.
>> [2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:107) Written done
>> [2007-11-30 15:04:49 3604] ERROR (XendCheckpoint:141) Save failed on domain 
>> web-test (18).
>> Traceback (most recent call last):
>>  File "//usr/lib64/python/xen/xend/XendCheckpoint.py", line 109, in save
>>    forkHelper(cmd, fd, saveInputHandler, False)
>>  File "//usr/lib64/python/xen/xend/XendCheckpoint.py", line 353, in 
>> forkHelper
>>    raise XendError("%s failed" % string.join(cmd))
>> XendError: /usr/lib64/xen/bin/xc_save 24 18 0 0 0 failed
>> [2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1917) 
>> XendDomainInfo.resumeDomain(18)
>> [2007-11-30 15:04:49 3604] DEBUG (XendDomainInfo:1947) 
>> XendDomainInfo.resumeDomain: completed
>> [2007-11-30 15:04:49 3604] DEBUG (XendCheckpoint:144) XendCheckpoint.save: 
>> resumeDomain
>>
>> After, in xm list, it shows it again as runnning, but the Time(s) grow 
>> quickly.
>>
>> web-test                                    18   512     4     r-----    
>> 273.1
>>
>> 30 secondes after
>>
>> web-test                                    18   512     4     r-----    
>> 437.0
>>
>> etc...
>>
>> (the virtual machine is not used for anything yet)
>>
>> Trying to xm console web-test also doesn't work anymore (frozen console)
>>
>> Kind regards,
>>
>> -- 
>> Sébastien Riccio
>> SwissCenter / OpenBusiness SA
>> sr@openbusiness.com
>>
>>
>>
>>
>>
>>
>>
>> Keir Fraser a écrit :
>>     
>>> Is any information dumped in /var/log/xen/xend.log?
>>>
>>>  -- Keir
>>>
>>> On 30/11/07 12:10, "Sébastien RICCIO" <sr@swisscenter.com> wrote:
>>>
>>>   
>>>       
>>>> Hello,
>>>>
>>>> I am trying the unstable 3.2 version of Xen and would like to know
>>>> if the save/restore/migration feature is supposed to work in the current
>>>> build ?
>>>>
>>>> Actually if I try to save a 32bit dom U it throws this error:
>>>>
>>>> [root@xen03 /]# xm save web-test web-test.save
>>>> Error: /usr/lib64/xen/bin/xc_save 24 17 0 0 0 failed
>>>>
>>>> Thanks for your answers.
>>>>
>>>> Kind regards,
>>>>     
>>>>         
>>>
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@lists.xensource.com
>>> http://lists.xensource.com/xen-devel
>>>
>>>
>>>   
>>>       
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>>     
>
>