This is a note to let you know that I've just added the patch titled
powerpc: pseries: Fix kexec on machines with more than 4TB of RAM
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
powerpc-pseries-fix-kexec-on-machines-with-more-than-4tb-of-ram.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <sta...@kernel.org> know about it.
>From bed9a31527af8ff3dfbad62a1a42815cef4baab7 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <an...@samba.org>
Date: Tue, 26 Jul 2011 18:15:03 +0000
Subject: powerpc: pseries: Fix kexec on machines with more than 4TB of RAM
From: Anton Blanchard <an...@samba.org>
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 <an...@samba.org>
Acked-by: Michael Neuling <mi...@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
arch/powerpc/platforms/pseries/lpar.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -371,7 +371,7 @@ static void pSeries_lpar_hptab_clear(voi
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
Patches currently in longterm-queue-2.6.32 which might be from an...@samba.org
are
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/powerpc-pseries-fix-kexec-on-machines-with-more-than-4tb-of-ram.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/powerpc-fix-device-tree-claim-code.patch
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