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Re: CVS commit: src/sys/opencrypto

In article <>,
matthew green  <> wrote:
>> Log Message:
>> 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?


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