On Fri, Sep 24, 2010 at 4:27 AM, Eknath Venkataramani <eknath.i...@gmail.com> wrote: > This is my homework question and I need a pointer to know what I must look > for. > > How does FreeBSD 5.2.1 control the interrupt level? > For example, is it possible to block off network interrupts when servicing a > clock interrupt? > If so, how? How are interrupt threads managed > (created/destroyed/scheduled)?
In short I dunno. The long answer is that you should look at the FreeBSD kernel code. It is very big compared to OpenBSD and you will have to spend a long time. Normally however the clock interrupt gets the highest priority. Normally interrupts on x86 are managed by the 8051 PIC I think. It happens at the hardware level. Most of the time interrupt lines are shared and daisy chained. -Girish -- Gayatri Hitech web: http://gayatri-hitech.com SpamCheetah Spam filter: http://spam-cheetah.com _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
