Openthread Lockup

[Jay]

My Project was originally based on the Multiprotocol dynamic template from THREAD SDK 1.0.0.

I Recently Updated the OPENTHREAD to 

github.com/.../704511c (with revert of 136a444) as suggested in the release notes for the Thread SDK 2.0.0.

I need to use the OPENTHREAD repo instead of the compiled libraries included in the SDK because we need to change the max number of children.

Just using the OPENTHREAD repo without any changes I am having a lockup problem. After a time, which can be a few minuets or a couple of hours
the Bluetooth and Thread stop working.

With the Segger embedded studio I was able to see that It is stopping at line 1230 of mac.cpp with an error of OT_ERROR_INVALID_STATE.
What could be causing this?

[Lukasz Duda]

Hello Jay,

Indeed as Jonathan wrote on openthread users forum, the maximum numer of supported children is determined by OPENTHREAD_CONFIG_MAX_CHILDREN config. This value cannot be changed runtime, you need to modify it and rebuild libraries. The default value is 10. We are going to increase this value in the subsequent releases of nRF SDK for Thread and Zigbee.

When it comes to your problem with mac.cpp assert. We have already created a pull request with the fix that should be merged to the main branch today.

https://github.com/openthread/openthread/pull/3203

Its very likely to see bugfix release of SDK soon.

[Jay]

Thanks This Seems to have solved my Issue