2 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
index bddd44f2f0ab..80e2984f521c 100644
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ b/arch/x86/include/asm/uv/uv_bau.h
@@ -133,7 +133,7 @@ struct bau_msg_payload {
  * see table 4.2.3.0.1 in broacast_assist spec.
  */
 struct bau_msg_header {
-        unsigned int dest_subnodeid:6;  /* must be zero */
+        unsigned int dest_subnodeid:6;  /* must be 0x10, for the LB */
         /* bits 5:0 */
         unsigned int base_dest_nodeid:15; /* nasid>>1 (pnode) of */
         /* bits 20:6 */                   /* first bit in node_map */
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index 8ccabb8a2f6a..77b9689f8edb 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -744,6 +744,7 @@ uv_activation_descriptor_init(int node, int pnode)
                  * note that base_dest_nodeid is actually a nasid.
                  */
                 ad2->header.base_dest_nodeid = uv_partition_base_pnode << 1;
+                ad2->header.dest_subnodeid = 0x10; /* the LB */
                 ad2->header.command = UV_NET_ENDPOINT_INTD;
                 ad2->header.int_both = 1;
                 /*