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[lwip-devel] [bug #57374] Assertion "this needs a pbuf in one piece!" fa

From: Erik Ekman
Subject: [lwip-devel] [bug #57374] Assertion "this needs a pbuf in one piece!" failed
Date: Wed, 1 Jul 2020 14:21:28 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Follow-up Comment #7, bug #57374 (project lwip):

[comment #6 comment #6:]
> This part is still a bit strange to me:
> It seems that should be adjusting the rambuf instead of p as well.
> Lots of packets are created, but it seems only one is sent. I am not that
sure this code actually works (I guess it would only happen for large UDPv6
packets), but it should not crash because of pbuf lengths anymore.

I wrote a test for it, and it seems to send the right amount of packets and
bytes. I was probably not following the different loops correctly.


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