Re: Do Kernel Threads have different address space?

["rahul p" <rahulpyd@xxxxxxxxx>]

Salhot,

How do the kernel implement  a thread  group  that  share  same memory area?  

The
process descriptor structure   -  task _struct  has  the field  mm
that  is pointer to mm_stuct which has the information of the memory
used by a process.

When you create a thread group that share same memory pages the mm fields of all processes point to the same mm_struct..

Hope it helps.

- 
Rahul

On Wed, May 21, 2008 at 12:32 PM, sahlot arvind <asahlot@xxxxxxxxx> wrote:

Hello

 

Do kernel threads have different address space like User processes have? I mean if I allocate some memory in kernel thread A then can kernel thread B see it or can some driver see it?

Thanks in advance

- A

-- 
Smart data structures and dumb code works a lot better than the other way
around. -Eric S Raymond