K 10
svn:author
V 6
cognet
K 8
svn:date
V 27
2012-02-07T16:07:29.281191Z
K 7
svn:log
V 737
MFC r226441 and r226443
r226441:
Explicitely set ARM_RAS_START and ARM_RAS_END once the cacheline or the
page has been allocated, or we could end up using random values, and bad things
could happen.

 PR:		arm/161492
 Submitted by:	Ian Lepore <freebsd AT damnhippie dot dyndns DOT org>

r226443:
Fix 2 bugs :

- A race condition could happen if two threads were using RAS at the same time
  as the code didn't reset RAS_END, the RAS code could believe we were not in
   a RAS, when we were in fact.
- Using signed value logic to compare addresses wasn't such a good idea.

Many thanks to Ian to investigate on these issues.

  Pointy hat to: 	cognet
  PR:		arm/161498
  Submitted by:	Ian Lepore <freebsd At damnhippie DOT dyndns dot org

END