Re: Question regarding thread_struct

From: Coywolf Qi Hunt
Date: Tue Mar 08 2005 - 13:16:47 EST

On Tue, 08 Mar 2005 12:28:42 -0500, Robert Love <rml@xxxxxxxxxx> wrote:
> On Tue, 2005-03-08 at 22:57 +0530, Imanpreet Arora wrote:
> > This has been a doubt for a couple of days, and I am wondering if this
> > one could also be cleared. When you say kernel stack, can't be resized
> >
> >
> > a) Does it mean that the _whole_ of the kernel is restricted to
> > that 8K or 16K of memory?
> Actually, 4K or 8K these days for x86. But, no, it means that EACH
> PROCESS is constrained to the kernel stack. The stacks are per-process.
> The kernel never "runs on its own" -- it is always in the context of a
> process (which has its own kernel stack) or an interrupt handler (which
> either shares the previous process's stack or has its own stack,
> depending on CONFIG_IRQSTACKS).

CONFIG_IRQSTACKS seems only on ppc64. Is it good to add for other archs too?

Coywolf Qi Hunt
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