At one place it would crash everytime Ethernet got at IP, on others it was ok.
This started to pop up with one of the lastest ESP-IDF versions, presumably because of changes to the ethernet and tcpip_adapter code.
I assign a static address to Ethernet and turn off DHCP.
Nailed this down to an issue in dhcp recv:
At the start of the function:
Code: Select all
/* Caught DHCP message from netif that does not have DHCP enabled? -> not interested */
if((dhcp == NULL) || (dhcp->pcb_allocated == 0)) {
goto free_pbuf_and_return;
}
Code: Select all
free_pbuf_and_return:
dhcp->msg_in = NULL;
pbuf_free(p);
Code: Select all
dhcp->msg_in = NULL
The fix is simple:
Code: Select all
free_pbuf_and_return:
if (dhcp)
dhcp->msg_in = NULL;
pbuf_free(p);
/Jesper