diff --git a/kernel/x86_64/cgemm_kernel_4x2_bulldozer.S b/kernel/x86_64/cgemm_kernel_4x2_bulldozer.S
index 431f25a22..33d3d29dd 100644
--- a/kernel/x86_64/cgemm_kernel_4x2_bulldozer.S
+++ b/kernel/x86_64/cgemm_kernel_4x2_bulldozer.S
@@ -79,8 +79,7 @@
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 8192
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
diff --git a/kernel/x86_64/cgemm_kernel_4x2_piledriver.S b/kernel/x86_64/cgemm_kernel_4x2_piledriver.S
index 931316285..76d6810fa 100644
--- a/kernel/x86_64/cgemm_kernel_4x2_piledriver.S
+++ b/kernel/x86_64/cgemm_kernel_4x2_piledriver.S
@@ -104,8 +104,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 256*8*4
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
@@ -116,7 +115,6 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define KK       72(%rsp)
 #define KKK      80(%rsp)
 #define BUFFER1	           128(%rsp)
-#define BUFFER2	LB2_OFFSET+128(%rsp)
 
 #if defined(OS_WINDOWS)
 #if   L_BUFFER_SIZE > 16384
diff --git a/kernel/x86_64/dgemm_kernel_8x2_bulldozer.S b/kernel/x86_64/dgemm_kernel_8x2_bulldozer.S
index 45f5c0c8f..40c5892c6 100644
--- a/kernel/x86_64/dgemm_kernel_8x2_bulldozer.S
+++ b/kernel/x86_64/dgemm_kernel_8x2_bulldozer.S
@@ -148,8 +148,8 @@
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 8192
+#define LB2_OFFSET    4096
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
diff --git a/kernel/x86_64/dgemm_kernel_8x2_piledriver.S b/kernel/x86_64/dgemm_kernel_8x2_piledriver.S
index e09e3b3f5..adc00cca3 100644
--- a/kernel/x86_64/dgemm_kernel_8x2_piledriver.S
+++ b/kernel/x86_64/dgemm_kernel_8x2_piledriver.S
@@ -105,8 +105,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 8192
+#define LB2_OFFSET    4096
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
diff --git a/kernel/x86_64/sgemm_kernel_16x2_bulldozer.S b/kernel/x86_64/sgemm_kernel_16x2_bulldozer.S
index 2a034f056..9cc27184d 100644
--- a/kernel/x86_64/sgemm_kernel_16x2_bulldozer.S
+++ b/kernel/x86_64/sgemm_kernel_16x2_bulldozer.S
@@ -78,8 +78,8 @@
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 8192
+#define LB2_OFFSET    4096
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
diff --git a/kernel/x86_64/sgemm_kernel_16x2_piledriver.S b/kernel/x86_64/sgemm_kernel_16x2_piledriver.S
index dcfed6bc5..7c42f1e12 100644
--- a/kernel/x86_64/sgemm_kernel_16x2_piledriver.S
+++ b/kernel/x86_64/sgemm_kernel_16x2_piledriver.S
@@ -105,8 +105,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 8192
+#define LB2_OFFSET    4096
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
diff --git a/kernel/x86_64/zgemm_kernel_2x2_bulldozer.S b/kernel/x86_64/zgemm_kernel_2x2_bulldozer.S
index e154d3031..7cf1fda8e 100644
--- a/kernel/x86_64/zgemm_kernel_2x2_bulldozer.S
+++ b/kernel/x86_64/zgemm_kernel_2x2_bulldozer.S
@@ -79,8 +79,7 @@
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 8192
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
@@ -91,7 +90,6 @@
 #define KK       72(%rsp)
 #define KKK      80(%rsp)
 #define BUFFER1	           128(%rsp)
-#define BUFFER2	LB2_OFFSET+128(%rsp)
 
 #if defined(OS_WINDOWS)
 #if   L_BUFFER_SIZE > 16384
diff --git a/kernel/x86_64/zgemm_kernel_2x2_piledriver.S b/kernel/x86_64/zgemm_kernel_2x2_piledriver.S
index 9f1392d78..b4c416b64 100644
--- a/kernel/x86_64/zgemm_kernel_2x2_piledriver.S
+++ b/kernel/x86_64/zgemm_kernel_2x2_piledriver.S
@@ -104,8 +104,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #endif
 
-#define L_BUFFER_SIZE 512*8*4
-#define LB2_OFFSET    512*8*2
+#define L_BUFFER_SIZE 256*8*4
 
 #define Ndiv6	 24(%rsp)
 #define Nmod6	 32(%rsp)
@@ -116,7 +115,6 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define KK       72(%rsp)
 #define KKK      80(%rsp)
 #define BUFFER1	           128(%rsp)
-#define BUFFER2	LB2_OFFSET+128(%rsp)
 
 #if defined(OS_WINDOWS)
 #if   L_BUFFER_SIZE > 16384