Milter-greylist

On Tue, Mar 18, 2008 at 11:04:55AM +0100, Ondrej Valousek wrote:
> Well, I only hope there is no reason for milter-greylist to allocate
> 8192Kb stack size, right?

Not really ;)
Just to point out:
It is not the matter of allocating, the stack area is reserved by the
thread library, no matter if the threaded code is using it or not.
Anyway, the address space for the reserved stack area is consumed, no
matter how the stack is filled. Each thread instance in a process
context needs (gets) this space sharing all the same (virtual) memory
address space (which is limited depending on the address architecture of
the OS).

> Both greylist and whitelist databases are in the main memory.

What is main memory? What you probably want to say is, that the DB
resides on the heap of the process (virtual) memory space. Actually, the
stack area for each newly started thread is also taken from this process
heap ...

However, in virtual memory context, the address space (per process) is
limited anyway to the range an 32-bit addresses could reach.


Johann K.