Re: [Xen-users] Migration only works one way (seemingly depending on machine's boot time)

[Tim Post <tim.post@xxxxxxxxxxxxxxx>]

On Tue, 2007-03-13 at 11:09 +0100, Dominik Klein wrote:
> Here's some more information:
> 
> Situation: machine 2 migrates vm to machine 1, success
> then machine 1 migrates vm back to machine 2, fails as described ealier
> 
> Now sniffing xenbr0 on machine 1 (ONE!) after the seemingly successful 
> (but yet unsuccessful) migration to machine 2 shows that packets for the 
> vm's ip and mac address still come in on machine 1 (yes, ONE).
> 
> Maybe this helps figure it out?
> 
> Regards
> Dominik

Are you assigning static MACS to these guests in the vif [] container?
This could be router re-arp lag wreaking havoc on NFS.

A failed NFS hard mount [ or the locking needed therein ] (especially on
a nfsroot) would cause the behavior you're seeing. Could be a simple
fix.

Just a suggestion :)

Best,
--Tim

> 
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