tree 4579e16f3d1f9504f8320ce973afc9996cd07e39
parent 7c12d906f4ef690c65e60111375856640f63a545
author Nathan Fontenot <nfont@austin.ibm.com> 1222854242 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1223614517 +1100

powerpc: Oops in pseries_lmb_remove()

Testing hotplug memory remove has revealed that we can oops in
pseries_lmb_remove().  The incorrect shift causes a NULL pointer
dereference in the page_zone() inline routine.

I have only been able to reproduce the oops on kernels with large pages
enabled.

Tested on Power5 and Power6 with and without large pages enabled.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>