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Re: [lwip-users] [lwip]Stack crashing with huge ICMP packets


From: Simon Goldschmidt
Subject: Re: [lwip-users] [lwip]Stack crashing with huge ICMP packets
Date: Fri, 27 Jan 2012 21:52:56 +0100

Kieran Mansley <address@hidden> wrote:

>> As long as I stay below 1536, everything just runs fine.
> 
> I think it could just be that the ping code in that release assumes that the 
> whole datagram will fit in a single packet.  When you exceed the MTU the 
> datagram will be fragmented and I doubt the code has been written to cope 
> with that.

Hmm, I also thought about that, but 1536 is already bigger than the MTU, isn't 
it?

> I would try and see if (i) the more recent versions of lwIP do what you want

Definitively. And if not, it will be much easier to try and reproduce the 
problems you are seeing.

Simon


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