On 27.03.2018 00:37, JM wrote:
[..]
Looking into ethernet_input(), p->ref is sometimes 1 and p->tot_len =
63 after ip_input(p, netif) (in my situation anyway) BUT p->tot_len
was 107 before ip_input(p, netif); was called! This seems odd to me as
I thought the pbuf is completely consumed and should be freed after
ip_input(p, netif). Is this correct?
That's not odd, it's perfectly valid. Someone consumes the pbuf, hides
some headers, but keeps it for later.
Since you said you used some stress testing tool, I guess it's the HTTP
server either keeping the pbuf or leaking it. There *were* errors in
httpd which I found with such a stressing tool, so Sergio's comment
about upgrading is worth thinking about!
Simon
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