[Infrastructures] RE: ISconf: Cache.py - bcast method

[Daniel Hagerty]

 > My isconf testing is all done in a Xen cluster, but only in domain 0
 > of each of several physical nodes, with no other guests running yet.
 > (I haven't yet got the machinery in place to have the test cases
 > automatically create and delete guest domains.)
 >
 > It would be interesting if this turned out to be a Xen-specific
 > behavior.  It actually wouldn't surprise me at all, as a matter of
 > fact.  The hypervisor might be unable to deliver the packet to the
 > physical interface in this time slice.  I'm not sure, but it would
 > make sense for that to cause the guest system call to block/EAGAIN.

    The OS in front of me doesn't do that, but yours may vary (I'm not
looking at linux code).