Bug#758115: Disabled wait state X'32EE' on IPL of zIPL

[Michael Holzheu <holzheu@linux.vnet.ibm.com>]

Hello Stephen,

On Tue, 26 Aug 2014 22:38:58 -0400 (EDT)
Stephen Powell <zlinuxman@wowway.com> wrote:

[snip]

 
> I do worry, though, about this being a more general problem.  What about
> the interrupt handler in the Linux kernel?  Or any other portion of the
> kernel that needs to examine (or change) data in real page 0 for
> whatever reason?

At least the upstream kernel 3.16 also uses "-fno-delete-null-pointer-checks".

See toplevel Makefile:

KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)

Michael