From: Greg KH <gregkh@suse.de>
To: linux-kernel@vger.kernel.org, stable@kernel.org
Cc: stable-review@kernel.org, torvalds@linux-foundation.org,
akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk,
Anton Blanchard <anton@samba.org>,
Michael Neuling <mikey@neuling.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: [6/6] powerpc: pseries: Fix kexec on machines with more than 4TB of RAM
Date: Fri, 12 Aug 2011 14:07:29 -0700 [thread overview]
Message-ID: <20110812210844.287474680@clark.kroah.org> (raw)
In-Reply-To: <20110812210849.GA5640@kroah.com>
2.6.32-longterm review patch. If anyone has any objections, please let us know.
------------------
From: Anton Blanchard <anton@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 <anton@samba.org>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@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
next prev parent reply other threads:[~2011-08-14 16:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-12 21:08 [0/6] 2.6.32.45-longterm review Greg KH
2011-08-12 21:07 ` [1/6] crypto: Move md5_transform to lib/md5.c Greg KH
2011-08-12 21:07 ` [2/6] net: Compute protocol sequence numbers and fragment IDs using MD5 Greg KH
2011-08-12 21:07 ` [3/6] ALSA: timer - Fix Oops at closing slave timer Greg KH
2011-08-12 21:07 ` [4/6] ALSA: snd-usb-caiaq: Fix keymap for RigKontrol3 Greg KH
2011-08-12 21:07 ` [5/6] powerpc: Fix device tree claim code Greg KH
2011-08-12 21:07 ` Greg KH [this message]
2011-08-12 21:10 [0/6] 2.6.33.18-longterm review Greg KH
2011-08-12 21:09 ` [6/6] powerpc: pseries: Fix kexec on machines with more than 4TB of RAM Greg KH
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