[dpdk-users] Why open() fail in rte_eal_config_attch() in DPDK secondary process ?

[coolwil...@hotmail.com]

Hi, 
The version of my DPDK is v19.02 .
Both my master and secondary are run with linux root ID.
First, I can successfully run a DPDK master process like:
dpdk_app -c f --file-prefix=mm --socket-mem=1024,1024

Then, I run the same app like:
dpdk_app -c f0 --file-prefix=ss --socket-mem=1024,1024 --proc-type=secondary
but, it fails in open("/var/run/dpdk/ss/config", O_RDWR); in 
rte_eal_config_attach().
the open() return -1;

why ?
how can I fix it ?

Thanks!




coolwil...@hotmail.com