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re: CVS commit: src/sys/opencrypto
> >> Implement in-module ref-counting, and do not allow auto-unload if there
> >> are existing references.
> >> Note that manual unloading is not prevented.
> >> OK christos@
> >> XXX Also note that there is still a small window where the ref-count can
> >> XXX be decremented, and then the process/thread preempted. If auto-unload
> >> XXX happens before that thread can return from the module's code, bad
> >> XXX things (tm) could happen.
> >in this case, please simply disallow unload for this module always.
> >if the race is fixed, it can be enabled again.
> I think that most module unloads suffer from this race, any ideas how to
> fix it?
phase one: disable auto-unload.
phase two: ???
the rest left as an exercise for the reader. :-)
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