Re: Secondary process stuck in rte_eal_memory_init

[Antonio Di Bacco <a.dibacco.ks@gmail.com>]

Can you try launching the secondary with some delay in order not to
overlap with memory allocations done in the primary?
Is your primary allocating memory on NUMA 0 where the secondary is running?

On Tue, Aug 23, 2022 at 4:54 PM Anna Tauzzi <admin@argonnetech.net> wrote:
>
> I have a primary process that spawns a secondary process.Primary is on NUMA 1 while secondary on NUMA 0.
> The secondary process starts up but when calling rte_eal_init it gets stuck with this backtrace:
>
> flock()
> sync_walk()
> rte_memseg_list_walk_thread_unsafe()
> eal_memalloc_sync_with_primary()
> rte_eal_hugepage_attach()
> rte_eal_memory_init()
> rte_eal_init.cold()
>
> While starting the secondary, it is possible that the primary is allocating memory on different NUMAs. I'm saying this because if in the primary I replace the dpdk memory allocation function (rte_zalloc...) with a plain memalign I don't get this problem.
>
>
>