From mboxrd@z Thu Jan  1 00:00:00 1970
From: chris@basementcode.com (Christopher Harvey)
Date: Tue, 06 Sep 2011 09:38:26 -0500
Subject: Paging of Kernel Memory
In-Reply-To: <CAJ61zBDd4tH7jn2YEpDSmbaTXODUqpjOKanPsk0sqgHbKyek8w@mail.gmail.com>
References: <CAJ61zBDd4tH7jn2YEpDSmbaTXODUqpjOKanPsk0sqgHbKyek8w@mail.gmail.com>
Message-ID: <1d7f4b0da950c823cb12c54a4d555234@basementcode.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Tue, 6 Sep 2011 17:48:12 +0530, Vijay Chauhan wrote:
> Hi,
>
> i was going through the Linux Kernel Development book. It mention the
> following:
>
> "Additionally, kernel memory is not pageable.Therefore, every byte of
> memory you consume is one less byte of available physical memory."
>
> What is the meaning of 'Kernel memory is not pageable'? Anyone can
> give details would help me in understanding.
>
> Thanks,
> Vijay
>
It means that it can't be swapped to your swap partition, even if 
you're not using it.