I can get xen-2.0-testing to fail on live migrations with virtually no load 
about 10% of the time with live migration :-) Seems it becomes unable to 
suspend the user domain kernel - kernel gets the message, but never gets a 
chance to process it. I'm not saying 2.0-testing won't resolve the problem 
John is seeing, but I'm not sure I would quite make the statement that it has 
been 'battle tested' :-)
-- Ray
-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx]On Behalf Of Ian Pratt
Sent: Wednesday, September 14, 2005 7:04 AM
To: bryant.johan@xxxxxxxxx
Cc: ian.pratt@xxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] xen save error
The xfrd.log might give you more info. Alternatively you could try
2.0-testing. This has a couple of extra minor fixes and has been battle
tested with many thousands of migrations under load.
Ian 
> -----Original Message-----
> From: john bryant [mailto:bryant.johan@xxxxxxxxx] 
> Sent: 13 September 2005 21:57
> To: Ian Pratt
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx; ian.pratt@xxxxxxxxxxxx
> Subject: Re: [Xen-users] xen save error
>
> Hi ,
>
> Upgrading xen to 2.0.7, I am able to save my virtual machines 
> . But restoring virtual machine give me error. Here is my 
> sequence of event :
>
> xm save 10 test10
> xm restore test10
> Error: errors: transfer daemon (xfrd) error: 22
>
> xm list does show newly restored domain 
>
> Name Id Mem(MB) CPU State Time(s) Console
> Domain-0 0 92 0 r---- 58.5 
> ttylinux 11 256 0 -b--- 0.8 9610
>
> xm list -l gives following output ( No console information ) 
> . I am not able to go to restored virtual machine.
>
> (domain
> (id 0)
> (name Domain-0)
> (memory 92)
> (maxmem -1)
> (state r----)
> (cpu 0)
> (cpu_time 65.475292894)
> (devices)
> )
> (domain
> (id 11)
> (name Domain-11)
> (memory 255)
> (maxmem 256)
> (state -b---)
> (cpu 0)
> (cpu_time 0.008907453)
> (devices)
>
> XFRD Log for restoration is as follows ( tail -f /var/log/xfrd.log ): 
>
> Reloading memory pages: 6%
> 12%
> 17%
> 23%
> 28%
> 34%
> 39%
> 45%
> 50%
> 56%
> 62%
> 67%
> 73%
> 78%
> 84%
> 89%
> 95%
> 95%[1126619778.790150] Received all pages
>
> Received all pages
> 100%
>
> 100%
> [1126619778.808769] Memory reloaded.
>
> Memory reloaded.
> Decreased reservation by 8 pages
> [1126619778.810456] Domain ready to be built.
>
> Domain ready to be built.
> [1126619778.810637] Domain ready to be unpaused
>
> Domain ready to be unpaused
> [1126619778.811179] DOM=11
>
> DOM=11
> 2437 [ERR] XFRD> Error adding op field.
> 2437 [INF] XFRD> Xfr service err=-22
>
> PLEASE help. 
>
> Regards,
> John
>
>
>
> On 9/13/05, Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx> wrote:
>
> > I am new to Xen working. I am not able to save newly created
> > domain ( Xen 2.0.5) . Following is log of 
> /var/log/xend-debug.log:
>
> Please upgrade.
> Ian
>
>
>
>
>
>
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