On Thu, Jun 17, 2010 at 7:30 PM, Sudipta GHOSH <sudipta.in@xxxxxxxxx> wrote: > Hi, > > Memory management , scheduling is part of core kernel. > > Is it a process or special code resides in RAM? > The entire kernel is special code that resides in RAM, hence the fact it's a "monolithic" kernel. > As I see init process has PID 0, so the kernel code is a process or > special code. It's simply special code. Think of it as a big chunk of privileged functions that get called as needed. > > when there is an interrupt, device driver executes some code, in which context? > it's called "interrupt context", which happens to always run in privileged mode. (e.g ring 0 in x86 CPUs) > How data from userland to kernel space is transferred (user process to driver) > That's what system calls are for. > Thanks, > -S > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx > Please read the FAQ at http://kernelnewbies.org/FAQ > > -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
