From: Anton Blanchard Date: Tue, 26 Jul 2011 18:15:03 +0000 (+0000) Subject: powerpc: pseries: Fix kexec on machines with more than 4TB of RAM X-Git-Tag: firefly_0821_release~7541^2~2941 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f45a91a0ad6b2ed8938121cf7afd703ed3279854;p=firefly-linux-kernel-4.4.55.git powerpc: pseries: Fix kexec on machines with more than 4TB of RAM 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 --- diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 39e6e0a7b2fa..ed96b3765377 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -395,7 +395,7 @@ static void pSeries_lpar_hptab_clear(void) 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