Thanks for your prompt answer. Are there any plan to change that behavior, like using shm memory if no-huge is there? As I said, this would be very useful for testing.
Thanks, Tom ----- Mail original ----- > De: "Tan, Jianfeng" <[email protected]> > À: "tom barbette" <[email protected]>, [email protected] > Cc: "Gonzalez Monroy, Sergio" <[email protected]> > Envoyé: Jeudi 6 Juillet 2017 04:46:02 > Objet: RE: [dpdk-users] Secondary process try to map hugepage even with > --no-huge > Hi, > >> -----Original Message----- >> From: users [mailto:[email protected]] On Behalf Of >> [email protected] >> Sent: Wednesday, July 5, 2017 9:58 PM >> To: [email protected] >> Cc: Gonzalez Monroy, Sergio >> Subject: [dpdk-users] Secondary process try to map hugepage even with -- >> no-huge >> >> 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. > > So far if --no-huge is used, we are mmap anonymous memory, which makes it not > possible to share the memory with secondary (always refer to a config file, > open and mmap to the same addr). > > And we did not write anything into config file if we use --no-huge. This is a > limitation for now. > >> >> 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
