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Re: What's an "MPSAFE" driver need to do?

> BTW, you probably want to enable LOCKDEBUG.

Okay.  New kernel build running as I type this.

> you'll probably see a very noticeable slowdown because of it, but it
> picks up many many issues for you and is highly recommended for doing
> MP driver development.

Any particular reason it isn't present-but-commented in GENERIC, the
way DEBUG is?  (Incidentally, what happened to ALL?  I thought there
was going to be an ALL for each arch, with everything that made sense.
I don't see one in 5.2's sys/arch/amd64/conf, though.)

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