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-rw-r--r--src/plugins/unittest/session_test.c8
-rw-r--r--src/svm/message_queue.c2
2 files changed, 9 insertions, 1 deletions
diff --git a/src/plugins/unittest/session_test.c b/src/plugins/unittest/session_test.c
index e54c8a6cd86..0d9da537ef0 100644
--- a/src/plugins/unittest/session_test.c
+++ b/src/plugins/unittest/session_test.c
@@ -1875,6 +1875,8 @@ session_test_mq_basic (vlib_main_t * vm, unformat_input_t * input)
svm_msg_q_msg_t msg1, msg2, msg[12];
int __clib_unused verbose, i, rv;
svm_msg_q_t *mq;
+ svm_msg_q_ring_t *ring;
+ u8 *rings_ptr;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
@@ -1899,6 +1901,12 @@ session_test_mq_basic (vlib_main_t * vm, unformat_input_t * input)
mq = svm_msg_q_alloc (cfg);
SESSION_TEST (mq != 0, "svm_msg_q_alloc");
SESSION_TEST (vec_len (mq->rings) == 2, "ring allocation");
+ rings_ptr = (u8 *) mq->rings + vec_bytes (mq->rings);
+ vec_foreach (ring, mq->rings)
+ {
+ SESSION_TEST (ring->data == rings_ptr, "ring data");
+ rings_ptr += (uword) ring->nitems * ring->elsize;
+ }
msg1 = svm_msg_q_alloc_msg (mq, 8);
rv = (mq->rings[0].cursize != 1
diff --git a/src/svm/message_queue.c b/src/svm/message_queue.c
index 13d089a97cc..630442064f8 100644
--- a/src/svm/message_queue.c
+++ b/src/svm/message_queue.c
@@ -72,7 +72,7 @@ svm_msg_q_alloc (svm_msg_q_cfg_t * cfg)
vh = (vec_header_t *) ((u8 *) mq->q + q_sz);
vh->len = cfg->n_rings;
mq->rings = (svm_msg_q_ring_t *) (vh + 1);
- rings_ptr = (u8 *) mq->rings + vec_sz;
+ rings_ptr = (u8 *) mq->rings + sizeof (svm_msg_q_ring_t) * cfg->n_rings;
for (i = 0; i < cfg->n_rings; i++)
{
ring = &mq->rings[i];