EMU 'usesec' issue

I would like to try and use Inferno to develop some helpful applications for work.

Unfortunately, my computer at work has the 'usesec' issue. (http://code.google.com/p/acme-sac/issues/detail?id=19)

Questions:

   -- What is the purpose of 'usesec'?

   -- Is 'fixing' the problem just as easy as re-compiling the kernel with 'usesec' disabled? (What issues
might arise with 'usesec' disabled?)
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