[dpdk-dev] WARNING! Base virtual address hint not respected!

[Nilesh <nileshunhale@cse.iitb.ac.in>]

Hello,

We are trying to build an application over DPDK, but we are getting this 
warning when we call
rte_eal_init().

EAL: Detected 24 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: No available hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: WARNING! Base virtual address hint (0x100005000 != 0x7f63aed91000) 
not respected!
EAL:    This may cause issues with mapping memory into secondary processes
EAL: WARNING! Base virtual address hint (0x10000b000 != 0x7f63a937f000) 
not respected!
EAL:    This may cause issues with mapping memory into secondary processes
EAL: WARNING! Base virtual address hint (0x100a0c000 != 0x7f5fa7800000) 
not respected!
EAL:    This may cause issues with mapping memory into secondary processes
EAL: WARNING! Base virtual address hint (0x100c11000 != 0x7f63a931e000) 
not respected!
EAL:    This may cause issues with mapping memory into secondary processes

rte_eal_init() is returning successfully, but we wanted to know why this 
warning is coming and
what are the potential issues that may arise due to this warning.

Note: NIC is bound with igb_uio. Hugepages are mapped and there are 
enough free pages.

System specification :
2 machines with
Distributor ID:    Ubuntu
Description:    Ubuntu 18.04.2 LTS
Release:    18.04
Codename:    bionic

Kernel: 4.15.0-55-generic
*DPDK* version: 19.05.0

Hardware:
CPU: Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz
NIC 1: Intel Corporation Ethernet Controller XL710 for 40GbE QSFP+ (i40e)

(If any extra setup configuration information required will be provided)

Thanks,
Nilesh