From d346c533b1724c6fb2c58388d8a7977eaacbe2d5 Mon Sep 17 00:00:00 2001
From: Jerome Robert <jeromerobert@gmx.com>
Date: Tue, 7 Jun 2016 16:11:09 +0200
Subject: [PATCH] Fix z/ctrmv stack allocation on AMD bulldozer and barcelona
 target

* Hopefully, because this was found by error and trial (dark magic)
* Ref #786
---
 interface/ztrmv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/interface/ztrmv.c b/interface/ztrmv.c
index 2be915c32..1721afc1c 100644
--- a/interface/ztrmv.c
+++ b/interface/ztrmv.c
@@ -243,6 +243,8 @@ void CNAME(enum CBLAS_ORDER order, enum CBLAS_UPLO Uplo,
 #endif
   {
     buffer_size = ((n - 1) / DTB_ENTRIES) * 2 * DTB_ENTRIES + 32 / sizeof(FLOAT);
+    // It seems to be required for some K8 or Barcelona CPU
+    buffer_size += 8;
     if(incx != 1)
       buffer_size += n * 2;
   }