Re: MP and device drivers

Gavan Fantom <[email protected]> Thu, 21 Sep 2006 15:37:56 +0100
Newsgroups gmane.os.netbsd.devel.smp
Message-ID <[email protected]>
YAMAMOTO Takashi wrote:
> a concern is that, unless you never enter the driver with biglock held
> or you make all higher level interrupt handlers mp-safe beforehand,
> what the driver can do will be very limited due to the locking order
> constraint with biglock.

Would it be useful then to treat all drivers as non-mp-safe even if
they're flagged safe, unless all drivers with higher level interrupts
are declared mp-safe?

-- 
Gillette - the best a man can forget