[libvirt-users] Migrating fails with "Timed out during operation: cannot acquire state change lock"
Guido Winkelmann
guido-libvi at unknownsite.de
Tue Oct 16 14:20:59 UTC 2012
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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