If it cannot be handled with just a few well-placed things, then it
shouldn't be handled at all, and you should be working on trying to make
the UP-threaded kernel work ok, so that for the 2.5.x timeframe we won't
have this issue any more.
When we do the UP-threaded kernel, it would be good to keep the
non-UP-threaded option available as a config option, if for no other
reason than so we can do benchmarking numbers to keep us honest about
how much overhead we've added to support SMP/UP-threading.
- Ted
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