[dpdk-users] Secondary process try to map hugepage even with --no-huge

[tom.barbette at ulg.ac.be]

Hi list,

I've got a primary/secondary application that works with huge pages enabled but not with "--no-huge". The secondary application try to access .rte_hugepage_info no matter the "--no-huge" being passed to both master and slave.

This is especially important for functional regression test where I cannot use huge pages or sudo (like Travis, Gitlab CI, ...)

Trying with the simple_mp example :
 ./simple_mp --no-huge -m 128MB --proc-type=secondary --
EAL: Detected 8 lcore(s)
EAL: Probing VFIO support...
EAL: Could not mmap /home/tom/.rte_hugepage_info
PANIC in rte_eal_init():
Cannot init memory
6: [./simple_mp(_start+0x2a) [0x43512a]]
5: [/lib64/libc.so.6(__libc_start_main+0xf1) [0x7ffff6ed4401]]
4: [./simple_mp(main+0x6) [0x4347b6]]
3: [./simple_mp(rte_eal_init+0xe90) [0x46e2d0]]
2: [./simple_mp(__rte_panic+0xbe) [0x4301ab]]
1: [./simple_mp(rte_dump_stack+0x16) [0x475c06]]
zsh: abort (core dumped)  ./simple_mp --no-huge --proc-type=secondary --


With sudo, I get a little further, I guess this is not the problem.
EAL: Could not mmap /dev/hugepages/rtemap_53
PANIC in rte_eal_init():

Thanks,

Tom