[sheepdog-users] Snapshot and Cache stress test

[Valerio Pachera]

Writing data while taking snapshot still leads qemu to freeze, with
lot's of messages in sheep.log

...
Aug 29 14:37:19  ERROR [net 25232] do_read(220) connection is closed
(48 bytes left)
Aug 29 14:37:19  ERROR [net 25232] rx_work(578) failed to read a header
Aug 29 14:37:19  ERROR [net 25103] do_read(220) connection is closed
(48 bytes left)
Aug 29 14:37:19  ERROR [net 25103] rx_work(578) failed to read a header
Aug 29 14:37:19  ERROR [net 25232] do_read(220) connection is closed
(48 bytes left)
...