Another peer manager race condition in SDK 14.2?

RE: Another peer manager race condition in SDK 14.2?

Håkon Alseth — Fri, 16 Feb 2018 08:00:58 GMT

Getting _FORBIDDEN on a sd_ble_gatts_hvx call indicates that your connection requires security (ie: encryption), but it has not gotten to this stage of the connection yet.

I wouldn't ignore the error, but rather try again later when the link is fully encrypted and up-and-running.

Cheers,

Håkon

RE: Another peer manager race condition in SDK 14.2?

jumpingfool — Fri, 16 Feb 2018 06:48:46 GMT

Ok, it seems the issue was that security negotiation hadn't been completed before I wrote to the characteristic - in my bench testing I'm getting NRF_ERROR_FORBIDDEN and haven't seen the SDK error again.

For now I'm working around this by just ignoring this error case - is there a "correct" way to handle this, i.e. should I have more conditions on the if statement that wraps the call to sd_ble_gatts_hvx in my code sample above?

RE: Another peer manager race condition in SDK 14.2?

jumpingfool — Wed, 14 Feb 2018 20:58:48 GMT

Thanks for your help - I have added the DEBUG flag.

Now waiting for the issue to recur and then I'll capture the error data fields and post them here.

RE: Another peer manager race condition in SDK 14.2?

Håkon Alseth — Wed, 14 Feb 2018 16:12:41 GMT

Hi,

Could you add the preprocessor define "DEBUG" to your project and check the m_error_data variable once an assert occurs?

This define will add blocking assertions instead of a system-reset.

You should then be able to read out m_error_data.line_num/p_file_name/err_code to get more detailed information.

The 0x4001 error indicates that the error comes from the application, and not specifically where it comes from.

Cheers,

Håkon