I found a multi-thread safety issue in mesh stack code and it still exist in the newest version. When "seg_ack" was called by callout module, there was anthoer thread which receive mesh datas was calling "seg_rx_reset()" and set the "rx->sub" to NULL, then "seg_ack" called "send_ack" and acess the rx->sub->net_idx, so it crashed. The adv-sending task and ble-data-receiving task and each "callout" are not in the same thread, why don't you add the Multi-thread protection mechanism in mesh stack? or something I used the wrong way? Waiting for your replies! thank you so much!
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