Programming

In this struct there are start_stack(start address of user space stack) and stack_vm(mount of pages of stack).

But why it doesn't have a member like end_stack?
Is it right to figure the end address of stack using start_stack+ PAGESIZE*tack_vm?

The start and the end of a stack figured out like this don't match that shown in /proc/PID/maps.

read from mm_struct:

Code:

Start address of stack:bfeec8a0; Stack_vm:33

read from /proc/PID/maps

Code:

bfecd000-bfeee000 rw-p 00000000 00:00 0          [stack]

Also, Stack_vm does'nt match "ulimit -s". Why?
Stack_vm shows 33*PAGESIZE = 33*4kb, but ulimit -s shows 8192kb.

Possibly useful:
Mel Gorman paper