Re: SHMEM_BASE_ADDRESS

[Paul <paul.corner-at-tesco.net>]

Hi Ray

The only people that would need the base address would be RH5.2 users with a 
2.0.36 09J kernel. It is fortunate for more recent installs that mbuff (and 
rtai_shm) now handles memory allocation without resorting to using reserved 
memory. The lilo option is one thing less to remember - It tripped me up on a 
number of occasions.

Whilst on the subject of ini parameter values - SHMEM_KEY need not be 100. 
Looking through the source code, it would appear that just about any integer 
apart from zero is acceptable. But this parameter is only used by rtai_shm, 
so rtlinux users need not worry about it (unless I'm not mistaken).

Regards, Paul.


On Monday 09 Sep 2002 8:09 pm, Ray Henry wrote:
> It does trip up the run file if it's not in there but nice to know that
> you don't have to worry about it's value if you are using a recent
> real-time kernel.
>
> I am reasonably certain that there are a few users who still need it for
> older compiles.