Subject: Re: MP and device drivers
To: YAMAMOTO Takashi <>
From: Gavan Fantom <>
List: tech-smp
Date: 09/21/2006 15:37:56
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