[lwip-devel] [bug #17922] mem_malloc bug

[Christiaan Simons]

Follow-up Comment #18, bug #17922 (project lwip):

> What exactly did you see to say it broke TCP?

I did some TCP echo using small (1k) files in an infinite loop.
(while (( 1 )); do ./echop; done), and the echo fails after a few cycles
using my malloc. When using the original mem_malloc() it all works, more or
less. TCP did give me some headaches, but I couldn't explain.

I also vaguely remember the DHCP failed on my target using my changes to
mem_malloc(), so therefore I kept the code disabled.

> TCP should not depend on mem_malloc() implementation (other than getting
memory :) 

True! I find it quite odd, but I couldn't trace the root cause.
Maybe I made some other mistake. We reviewed my stuff here, but we couldn't
explain why my code fails. Maybe a combination of bugs.

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