Messages in this thread Patch in this message | | | Date | Fri, 12 Aug 2011 14:09:56 -0700 | From | Greg KH <> | Subject | [6/6] powerpc: pseries: Fix kexec on machines with more than 4TB of RAM |
| |
2.6.33-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 @@ -372,7 +372,7 @@ 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
| |