Witout thread barrier, when dpdk_process_node initiating dpdk lib, workers thread may also be initiating. Main and workers threads may both setting error_main info, that will cause memory ASAN issue. Type: fix Signed-off-by: Xiaoming Jiang <jiangxiaoming@outlook.com> Change-Id: I87b73b310730719035d4985a2cff2e3308120ec2