> > > We will need to add a CALLOUT_MPSAFE flag at some point.
> > > 
> > > Andrew
> > 
> > what will CALLOUT_MPSAFE do, if softclock() is called with kernel_lock held?
> 
> We will need to change it so that the kernel lock isn't taken until
> softclock() - which also means having a flag for softintr_establish().
> 
> Andrew

do you mean, making code which can be interrupted by softclock
biglock-free first?

YAMAMOTO Takashi