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RE: [Xen-users] Live migration problem

To: "Steven Yelton" <steveny@xxxxxxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Live migration problem
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Fri, 12 Aug 2005 17:33:22 +0100
Cc: ian.pratt@xxxxxxxxxxxx
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> I think I am having a similar problem as this:
> 
> http://lists.xensource.com/archives/html/xen-users/2005-04/msg
> 00251.html
> 
> on xen 2.0.7
> 
> I can live migrate successfully 90% of the time, but I do hit 
> this.  Is there an update on the status of a fix?

This is nasty -- the domain is probably crashing during the migrate. We
have never seen this failure mode on 2.0.7, even after many thousands of
migrates.

Have you compiled your own kernel or are you using one of ours? (I
presume 2.6.11 ?)

What are you running in the guest?

What does 'xm dmesg' show?

Ian
 
> The last part of the xfer log:
> 
> [1123789954.329159] Saving memory pages: iter 28   0%
> Saving memory pages: iter 28   0%^M 28: sent 34, skipped 0,
> ^M 28: sent 34, skipped 0, [DEBUG] Conn_sxpr> (xfr.err 
> 22)[DEBUG] Conn_sxpr< err=0 Retry suspend domain (0) 
> (repeated 350 times or so) Retry suspend domain (0) Unable to 
> suspend domain. (0) Unable to suspend domain. (0) Domain 
> appears not to have suspended: 0 Domain appears not to have 
> suspended: 0
> 4155 [WRN] XFRD> Transfer errors:
> 4155 [WRN] XFRD> state=XFR_STATE    err=1
> 4155 [INF] XFRD> Xfr service err=1
> 
> Thanks much for any help.
> 
> Steven
> 

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