On 30/03/2015 04:53, Zhu Guihua wrote: > Question: > > When migrating from old qemu to one with this hot remove feature, I found > this feature would not work any more in new qemu. > > The reason is that DSDT table will not re-generate in new qemu when > migration. > So the hot remove will not work in the new qemu even though qemu > has this feature. > > Is it possible to re-generate dsdt table when migration?
No, consider the case when the OS is _executing_ the DSDT table during migration! You can either ignore the issue, or disable hot-unplug for older machine types---that is, only enable it for pc-2.4. Then you'll get consistent behavior wherever the VM is started in a cluster. Paolo
