diff --git a/lib/src/upper/rlc_am.cc b/lib/src/upper/rlc_am.cc
index 26f91d84b..f5c9a56d3 100644
--- a/lib/src/upper/rlc_am.cc
+++ b/lib/src/upper/rlc_am.cc
@@ -210,7 +210,7 @@ void rlc_am::write_sdu_nb(byte_buffer_t *sdu)
     if (tx_sdu_queue.try_write(sdu)) {
       log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU (%d B, tx_sdu_queue_len=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
     } else {
-      log->info_hex(sdu->msg, sdu->N_bytes, "[Dropped SDU] %s Tx SDU (%d B, tx_sdu_queue_len=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
+      log->debug_hex(sdu->msg, sdu->N_bytes, "[Dropped SDU] %s Tx SDU (%d B, tx_sdu_queue_len=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
       pool->deallocate(sdu);
     }
   } else {
diff --git a/lib/src/upper/rlc_tm.cc b/lib/src/upper/rlc_tm.cc
index 2260ea2bc..c24c1ce29 100644
--- a/lib/src/upper/rlc_tm.cc
+++ b/lib/src/upper/rlc_tm.cc
@@ -113,7 +113,7 @@ void rlc_tm::write_sdu_nb(byte_buffer_t *sdu)
       log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU, queue size=%d, bytes=%d",
                     rrc->get_rb_name(lcid).c_str(), ul_queue.size(), ul_queue.size_bytes());
     } else {
-      log->info_hex(sdu->msg, sdu->N_bytes, "[Dropped SDU] %s Tx SDU, queue size=%d, bytes=%d",
+      log->debug_hex(sdu->msg, sdu->N_bytes, "[Dropped SDU] %s Tx SDU, queue size=%d, bytes=%d",
                        rrc->get_rb_name(lcid).c_str(), ul_queue.size(), ul_queue.size_bytes());
       pool->deallocate(sdu);
     }
@@ -139,7 +139,7 @@ int rlc_tm::read_pdu(uint8_t *payload, uint32_t nof_bytes)
   if(pdu_size > nof_bytes)
   {
     log->error("TX %s PDU size larger than MAC opportunity\n", rrc->get_rb_name(lcid).c_str());
-    return 0;
+    return -1;
   }
   byte_buffer_t *buf;
   if (ul_queue.try_read(&buf)) {
diff --git a/lib/src/upper/rlc_um.cc b/lib/src/upper/rlc_um.cc
index d5ce7093c..b4fe824fe 100644
--- a/lib/src/upper/rlc_um.cc
+++ b/lib/src/upper/rlc_um.cc
@@ -204,9 +204,9 @@ void rlc_um::write_sdu_nb(byte_buffer_t *sdu)
   }
   if (sdu) {
     if (tx_sdu_queue.try_write(sdu)) {
-      log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU (%d B ,tx_sdu_queue_len=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
+      log->info_hex(sdu->msg, sdu->N_bytes, "%s Tx SDU (%d B,tx_sdu_queue_len=%d, pool=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
     } else {
-      log->info_hex(sdu->msg, sdu->N_bytes, "[Dropped SDU] %s Tx SDU (%d B ,tx_sdu_queue_len=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
+      log->debug_hex(sdu->msg, sdu->N_bytes, "[Dropped SDU] %s Tx SDU (%d B,tx_sdu_queue_len=%d)", rrc->get_rb_name(lcid).c_str(), sdu->N_bytes, tx_sdu_queue.size());
       pool->deallocate(sdu);
     }
   } else {
@@ -321,7 +321,7 @@ int  rlc_um::build_data_pdu(uint8_t *payload, uint32_t nof_bytes)
   if(!pdu || pdu->N_bytes != 0)
   {
     log->error("Failed to allocate PDU buffer\n");
-    return 0;
+    return -1;
   }
   rlc_umd_pdu_header_t header;
   header.fi   = RLC_FI_FIELD_START_AND_END_ALIGNED;
diff --git a/srsenb/src/upper/rlc.cc b/srsenb/src/upper/rlc.cc
index d02ee6c7c..6c97391d7 100644
--- a/srsenb/src/upper/rlc.cc
+++ b/srsenb/src/upper/rlc.cc
@@ -59,7 +59,7 @@ void rlc::add_user(uint16_t rnti)
   pthread_rwlock_rdlock(&rwlock);
   if (users.count(rnti) == 0) {    
     srslte::rlc *obj = new srslte::rlc;     
-    obj->init(&users[rnti], &users[rnti], &users[rnti], log_h, mac_timers, RB_ID_SRB0, RLC_TX_QUEUE_LEN);
+    obj->init(&users[rnti], &users[rnti], &users[rnti], log_h, mac_timers, RB_ID_SRB0);
     users[rnti].rnti   = rnti; 
     users[rnti].pdcp   = pdcp; 
     users[rnti].rrc    = rrc;