Make multiple instances of CrashMonkey run in a single machine about crashmonkey HOT 1 OPEN

You would have to make a couple of changes to the current system to get this working. First, you'd have to go through and remove the hard-coding of the disk to use as the wrapper device and the snapshot device(s).

The more difficult problem would be going through and making sure that each instance of CM used a different set of snapshot devices. Right now, we don't know how many checkpoints a test has, but we assume it is less than 20 (I think), and just mount that many snapshot devices. If you wanted to change CM to run multiple instances on a single machine, you may want to change it so that you can pass in a range of devices for the snapshot disks and make sure you pass in a unique wrapper device.

Finally, the current version of CM assumes that it has complete control over the kernel modules. In this case I can think of 2 options: 1) build something on top of CM that coordinates the kernel modules across all CM instances running, or 2) modify the kernel modules to dynamically add nodes after they are inserted (just like brd can do now).

from crashmonkey.