On Sat, Aug 31, 2002 at 10:39:20AM -0700, Mcen navaraj wrote: > what is the use of gates in the intel processors ? > what is the use of interrupt gate ? I think you should consult intel documentation manuals about the ia32 architecture for the specifics on these questions. It is my understanding that the interrupt gate method of access control is not used in the Linux kernel, and in fact, it isn't used in any popular free linux-like operating system.[1] > please tell me how many segments are created when a > process is created ?.What are the segments are created > when we create a process ? It is further my understanding that there are two segments created at boot time, one for kernel, one for userspace, and they largly or completely overlap. (I don't know details, but I think the getfs() and setfs() calls can be used to modify the segments.) I suggest reading about PaX, it is my understanding it uses segments to provide finer access control granularity. Cheers [1] (Evidently, The Open Group is being picky about its Unix trademark and hassling people who use the phrase "unix-like" to describe Linux. I doubt Linus would hassle me about describing Unix [tm] operating systems as "linux-like". :) -- It seems the power has been robbed from the founding fathers and is now firmly in the hand of the funding fathers -- Rik van Riel
Attachment:
pgp00155.pgp
Description: PGP signature
