Hi,
I had a similar problem recently, and in my case I was first using lwIP
functions from multiple threads (it's not thread safe, don't do that), and then
causing a double free() by calling essentially tcp_close() twice on the same
handle. My guess: you're corrupting memory somewhere, somehow.
regards,
Mikael
16 nov 2012 kl. 09:28 skrev "Barry Andrews" <[email protected]>:
> Hello
>
> Trying to get LWIP 1.4.1.1 working with FreeRTOS 7.1.1 runs for a while then
> gives me the following assertion.
>
> Assertion "memp sanity" failed at line 463 in ../lwip_1_4_0/Src/core/memp.c
>
> This happens while thrash testing by bulk pinging from a Linux machine to
> test capabilities.
>
> Comments in the file say this means pointers form a circle.
> What normally causes this?
> What is best approach to debug and fix?
>
> My heap should be plenty big enough and no other errors received from memory
> diags.
>
>
> Regards
>
> Barry Andrews
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