Re: Why is kernel memory not pagable ?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi

On Mon, Oct 21, 2013 at 8:53 AM, Nav Kamal <navkamal90@xxxxxxxxx> wrote:
> Am very new to kernel programming and one of the concept says that kernel
> memory isn't pagable ? Can please someone explain its reason ?

If we try to page off kernel structures we might have a deadlock
trying to bring it back. Imagine you removed from memory for disk
drivers code text, or swapped data needed for paging algorithm. Now to
bring any data back you need the code that does not present in memory
and should be paged in -> deadlock.

_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies




[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux