Re: [lwip-users] [LwIP 1.4.1] Ping length of 92 bytes via PPP crashes LwIP core/pbuf.c

[Simon Goldschmidt]

Marco Jakobs wrote:
> In a test scenario we ran a ping test with various byte sizes via the PPP 
> netif. With exactly the ping packet size of 92 bytes, our LwIP task crashes 
> repeatedly into an assert:
> 
> 15.05.17 11:07:17 ASSERT: 
> C:/Projekte/TMO-100/Libraries/lwIP/src/core/pbuf.c:888:p_to != NULL

That suggests the pbuf chain is invalid, i.e. tot_len of the pbuf was more than 
the pbuf chain (via ->next) provided. I assume a pbuf allocation error 
somewhere.
My suggestion would be to upgrade to 2.0.x and benefit of Sylvain's great work 
on PPP improvements!

Simon