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[libvirt-users] Migrating fails with "Timed out during operation: cannot acquire state change lock"



Hi,

After recently upgrading to 0.9.11 (as shipped with Fedora 17), I was just 
trying to migrate a qemu domain from one host to another (using 
virDomainMigrateToURI()), when I got this error message:

Unsafe migration: Migration may lead to data corruption if disks use cache != 
none

Okay, this is explainable (if a bit disappointing - I would have hoped that 
qemu would be able to disable disk caches before migration and then reenable 
them afterwards...). However, the next time I tried migrating the same domain, 
I got this error message after about 30 seconds:

Timed out during operation: cannot acquire state change lock

This looks like a bug to me - granted not a high profile one if it only 
happens when someone is retrying a failed migration, but still...

	Guido


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