Re: 2.6 must-fix list, v2

[Steven Cole]

On Wed, 2003-05-14 at 05:49, Shaheed R. Haque wrote:
> Quoting Steven Cole <[e-mail]>:
> 
> > Is this related or not to processor shielding used by RedHawk Linux?
> > Here is a link to their page:
> > 
> > http://www.ccur.com/realtime/sys_rdhwklnx.html
> > 
> > I saw a presentation by these guys over a year ago.  I'm not sure what
> > they're up to now.
> 
> Yes, if I correctly read the description of this feature, it seems to be the 
> same thing.
> 
Thanks, that is what I suspected.

There seemed to be quite a bit of interest in this from the other
customers, although our facility doesn't presently need this
functionality.  In the spirit of the "squeaky wheel", I'll squeak softly
for them.  

>From the above web page, thus quoth the RedHawk:

"In tightly-coupled symmetric multiprocessing systems such as
Concurrent¢s iHawk real-time systems, RedHawk Linux allows individual
CPUs to be shielded from interrupt processing, daemons, bottom halves,
and other Linux tasks. Processor shielding provides a highly
deterministic execution environment where interrupt response is
guaranteed. RedHawk implements shielding via the industry-accepted
shield(1) command."

Steven