What factors make it fail to transmit packets to the air after successful network packet allocation on mesh?

RE: What factors make it fail to transmit packets to the air after successful network packet allocation on mesh?

Hung Bui — Fri, 22 Feb 2019 13:22:09 GMT

Hi Charlie,

We do have some bug fix in SDK v3.1 regarding buffer management that maybe related to your case.

We would be really appreciate if you can provide us an minimum example that we can reproduce the issue here (prefer with SDK v3.1).

Hung Bui — Fri, 08 Feb 2019 15:51:32 GMT

Hi Charlie,

Thanks for your update. We are checking with the team to see what could be the problem.

It would be great if you can provide an example that show the issue so we can reproduce here.

Charlie Choi — Thu, 07 Feb 2019 00:15:43 GMT

Hi Hung,

Yes I received NRF_SUCCESS after calling access_model_publish.

The issue happens irregularly after heavy packet traffic. Sometimes it solved after some time but mostly it stays at the situation forever.

I coded my application based on light-switch example.

I found the problem seemed to be solved when I execute re-init function as below at run time.

void core_tx_forced_reinit(void)

{

list_remove(&mp_bearers, &p_bearer->list_node);
m_bearer_count--;

advertiser_disable(&m_bearer_roles[CORE_TX_ROLE_ORIGINATOR].advertiser);
advertiser_disable(&m_bearer_roles[CORE_TX_ROLE_RELAY].advertiser);

core_tx_adv_init();

}

I think advertiser had corrupted by something.

I need your additional advice.

1. what can make this issue happen?

2. if I run core_tx_forced_reinit() function at run time, what additional issues are expected?

3. Do you recommend me to migrate to v3.1.0? Is it easy? (^^)

Thank you for your advice in advance.

Charlie

Hung Bui — Wed, 06 Feb 2019 13:50:55 GMT

Hi Charlie,

I assume you have checked that the message is queued in the buffer ? You received NRF_SUCCESS when calling access_model_publish() ?

How often do you see the issue ? How large is your payload ?

Do you see the issue with our stock example ?

Please be aware that SDK v2.1.1 is pretty old one, the current Mesh SDK is v3.1.0