SEVERE Bug in mc68360 _ISR_Handler???

[Joel Sherrill]

Thomas Doerfler wrote:
> 
> Hello Chris, hello Joel,
> 
> my network was running hot all night and the system is still alive
> and kicking. Your patch works fine and definitely cures the problem
> for all the "small" M68K processors.
> 
> Joel, can you add the patch to the source tree?
> 
> I think all M68k rtems users should be aware of that bug (and the
> patch), because it might lead to deadline misses concerning interrupt
> response time in rare conditions.

Chris could you repost it to the list.  Eric Norum and I wondered
if the logic to enable it should be something like:

HAS_SEPARATE_STACKS==0 && COLDFIRE==0 && 060==0

I will then put this in the 4.5 branch, mainline, and
in a patches directory on the ftp server.

--joel

> Bye,
>         Thomas.
> 
> > Thomas Doerfler wrote:
> > >
> > > I will hack that into my test software and then make my network heat
> > > up again to blow hard against my poor RTEMS system :-)) . No need to
> > > publish it before it acutally works.
> > >
> >
> > Try the attached patch. It is only 2 extra instructions :-)
> >
> > --
> >  Chris Johns, cjohns @ cybertec.com.au
> 
> --------------------------------------------
> IMD Ingenieurbuero fuer Microcomputertechnik
> Thomas Doerfler           Herbststrasse 8
> D-82178 Puchheim          Germany
> email:    Thomas.Doerfler at imd-systems.de
> PGP public key available at: http://www.imd-systems.de/pgp_key.htm

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
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