[PATCH] Correct a race condition between the e500 core decrementer wrapping and the tick interrupt being handled

[Nick Withers]

Just a ping...

I reckon It'd be nice to get this in before 4.11 :-)

On Fri, 2014-11-14 at 12:08 +1100, Nick Withers wrote:
> Hi all,
> 
> Please find attached a patch to close a race between the e500 PowerPC
> decrementer wrapping and the associated tick interrupt handler doing its
> thing.
> 
> The issue came up in the users@ list:
> http://lists.rtems.org/pipermail/users/2014-November/028362.html
> 
> With these changes and not without, the spnsext01 test passes on the
> MVME3100.
-- 
Nick Withers

Embedded Systems Programmer
Department of Nuclear Physics, Research School of Physics and Engineering
The Australian National University (CRICOS: 00120C)