From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754684Ab2BEWgd (ORCPT ); Sun, 5 Feb 2012 17:36:33 -0500 Received: from 1wt.eu ([62.212.114.60]:62095 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754357Ab2BEW04 (ORCPT ); Sun, 5 Feb 2012 17:26:56 -0500 Message-Id: <20120205220951.162402426@pcw.home.local> User-Agent: quilt/0.48-1 Date: Sun, 05 Feb 2012 23:10:29 +0100 From: Willy Tarreau To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Anton Blanchard , Michael Neuling , Benjamin Herrenschmidt , Greg KH Subject: [PATCH 40/91] powerpc: pseries: Fix kexec on machines with more than 4TB of RAM In-Reply-To: <0635750f5f06ed2ca212b91fcb5c4483@local> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.27-longterm review patch. If anyone has any objections, please let us know. ------------------ commit bed9a31527af8ff3dfbad62a1a42815cef4baab7 upstream. On a box with 8TB of RAM the MMU hashtable is 64GB in size. That means we have 4G PTEs. pSeries_lpar_hptab_clear was using a signed int to store the index which will overflow at 2G. Signed-off-by: Anton Blanchard Acked-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/platforms/pseries/lpar.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) Index: longterm-2.6.27/arch/powerpc/platforms/pseries/lpar.c =================================================================== --- longterm-2.6.27.orig/arch/powerpc/platforms/pseries/lpar.c 2012-02-05 22:34:33.813915314 +0100 +++ longterm-2.6.27/arch/powerpc/platforms/pseries/lpar.c 2012-02-05 22:34:40.526914898 +0100 @@ -371,7 +371,7 @@ unsigned long ptel; } ptes[4]; long lpar_rc; - int i, j; + unsigned long i, j; /* Read in batches of 4, * invalidate only valid entries not in the VRMA