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authorNeale Ranns <nranns@cisco.com>2017-06-29 00:19:08 -0700
committerNeale Ranns <nranns@cisco.com>2017-06-29 00:19:13 -0700
commitc02bd03ddf5eec9e9c79811360685f13e4ba8ee1 (patch)
treec9f3a245464529de69943f30a9699574c4081d7e /src/vnet/dpo
parent25ff2ea3a31e422094f6d91eab46222a29a77c4b (diff)
VPP debug image with worker threads hit assert on adding IP route with traffic (VPP-892)
When stacking DPOs the VLIB graph is also updated to add the edge between the nodes, if this edge does not yet exist. This addition should be done with the workers stopped. Change-Id: I327e4d7d26f0b23eb280f17e4619ff2093ff7940 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/dpo')
-rw-r--r--src/vnet/dpo/dpo.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/vnet/dpo/dpo.c b/src/vnet/dpo/dpo.c
index 28aa0c23351..389f995bb96 100644
--- a/src/vnet/dpo/dpo.c
+++ b/src/vnet/dpo/dpo.c
@@ -327,6 +327,8 @@ dpo_get_next_node (dpo_type_t child_type,
vm = vlib_get_main();
+ vlib_worker_thread_barrier_sync(vm);
+
ASSERT(NULL != dpo_nodes[child_type]);
ASSERT(NULL != dpo_nodes[child_type][child_proto]);
ASSERT(NULL != dpo_nodes[parent_type]);
@@ -368,6 +370,8 @@ dpo_get_next_node (dpo_type_t child_type,
}
cc++;
}
+
+ vlib_worker_thread_barrier_release(vm);
}
return (dpo_edges[child_type][child_proto][parent_type][parent_proto]);
@@ -445,10 +449,21 @@ dpo_stack_from_node (u32 child_node_index,
parent_node =
vlib_get_node_by_name(vm, (u8*) dpo_nodes[parent_type][parent_proto][0]);
- edge = vlib_node_add_next(vm,
+ edge = vlib_node_get_next(vm,
child_node_index,
parent_node->index);
+ if (~0 == edge)
+ {
+ vlib_worker_thread_barrier_sync(vm);
+
+ edge = vlib_node_add_next(vm,
+ child_node_index,
+ parent_node->index);
+
+ vlib_worker_thread_barrier_release(vm);
+ }
+
dpo_stack_i(edge, dpo, parent);
}