[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] how to start vms concurrently and how to add a event ?
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 ?
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