From fc72f686839f4c3b4bc03b0b96f45ca7fcd2cec4 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Mon, 11 Jun 2018 09:11:13 +0200
Subject: [PATCH] Update setparam-ref.c

---
 kernel/setparam-ref.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/setparam-ref.c b/kernel/setparam-ref.c
index 2bb54b406..f654de110 100644
--- a/kernel/setparam-ref.c
+++ b/kernel/setparam-ref.c
@@ -662,6 +662,10 @@ static __inline__ int get_l2_size(void){
   l2 = BITMASK(ecx, 16, 0xffff);
 
 #ifndef ARCH_X86
+  if (l2 <= 0) {
+     fprintf (stderr,"OpenBLAS WARNING - could not determine the L2 cache size on this system, assuming 256k\n");
+     return 256;
+  }
   return l2;
 
 #else