[libvirt] [PATCH 00/16] Implement migration v3 protocol
Daniel P. Berrange
berrange at redhat.com
Thu Apr 21 16:32:39 UTC 2011
This is an major update to
http://www.redhat.com/archives/libvir-list/2011-February/msg00257.html
In this update
- Bug fixes from previous review
- Remove assert() usage
- Introduce SPICE graphics relocation
- Refactoring of peer2peer & tunnelled migration code
- Support for v3 migration with p2p & tunnelled migration
- A (broken) attempt to make job signal/status updates work
with tunnelled migration
The latter item seemed to be working fine, but I've since
found that it can cause QEMU to deadlock. While we're sending
QEMU a montor command to update status, QEMU may be trying to
write some migration data and it often blocks on write() to
the migration socket. This could be a bug with us not giving
it a non-blocking socket, or it could be a QEMU limitation.
To be investigated....
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