linux process stack

From: [email protected] ratheesh k
To: [email protected]
Date: Sat, 15 May 2010 14:41:09 +0530
Subject: linux process stack

All ,

I am beginner . Please see below my dobts

1. All process and kenel thread has their own task_struct  structure
and kernel mode stack . Kernel itself maintain its own stack .


2 .Whenever a process ,say A , switch to kernel ( on system call )
,registers will be stored in its own kernel mode stack ?


3 . On interrupt , process  A  's process  context will be saved on
process A 's own kernel mode stack ?c


4 .Kernel thread will also use its  own kenel mode stack on interrupt  ?


5 .Where is the SP ( stack pointer ) is saved  ?  How it it retrieved back ?


Thanks,
Ratheesh
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