Hi, could someone please provide any explanation why sometimes mempool creation fails with ENOMEM?
I run my test app several times without any problems and then I start getting ENOMEM error when creating mempool that are used for packets. I try to delete everything from /mnt/huge, I increase the number of huge pages, remount /mnt/huge but nothing helps. There is more than enough memory on server. I tried to debug rte_mempool_create() call and it seems that after server is restarted free mem segments are bigger than 2MB, but after running test app for several times, it seems that all free mem segments have a size of 2MB, and since I am requesting 8MB for my packet mempool, this fails. I'm not really sure that this conclusion is correct. Does anybody have any idea what to check and how running my test app several times affects hugepages? For me, this doesn't make any since because after test app exits, resources should be freed, right? This has been driving me crazy for days now. I tried reading a bit more theory about hugepages, but didn't find out anything that could help me. Maybe it's something else and completely trivial, but I can't figure it out, so any help is appreciated. Thank you! BR, Newman P.
