[Xen-devel] how to start vms concurrently and how to add a event ?

[Bryant Kobe <shijie1234321@xxxxxxxxx>]

Hello  list ,

1.   I find that some errors would be raised when to start vms concurrently , 

and find there is a coarse-grain lock in start code of xend written in python,

but in XendBootloader.py there is a little time to release and then re-aquire

the lock .

I want to know whether which is why errors occur when starting 

concurrently . 

and how to solve these problems ?  just to modify the coarse-grain lock of 

xen source code in the part to fine-grain lock ?

if so there will be a long time and hard work.

2.    when I start a vm using vhd , it should mount the vhd file to /dev/xvdp in 

dom0 and then this virtual device is encapsulated to a vbd object ,finally which

is installed in xenstore by backend process before pygrub is working . 

This set-up procedure would cost some time , so if the device have not 

prepared when pygrub continues to work , some errors take place . 

I want to know whether i could add a event to notify the frontend that the 

device is completely prepared ?

and where is the backend code related ?

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel