From: Nathan Fontenot <nfont@austin.ibm.com>
Date: Wed, 1 Oct 2008 09:44:02 +0000 (+0000)
Subject: powerpc: Oops in pseries_lmb_remove()
X-Git-Tag: v2.6.28-rc1~569^2~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9fd3f88cb67ac51bd5face8441472b91e042be67;p=pandora-kernel.git

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>
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