Hello,
i'm using lwip 2.0.3 on a cortex m4 board (atmel sam4e).
On high traffic (like zenmap "intense scan, all ports") i always get the
p->ref > 0 assert in pbuf.c line 747.
If i look at the call stack it always seems to happen during
pbuf_realloc called from ip4_input.
Going one step back to the pbuf_realloc where pbuf_free(q->next); is called
/* any remaining pbufs in chain? */
if (q->next != NULL) {
/* free remaining pbufs in chain */
pbuf_free(q->next);
}
There I see that q->next is indeed not NULL but all the data inside is
0, including the ref.
Does anyone know how that can happen?
Below you'll find a screenshot from Atmel Studio taken before the
pbuf_free(q->next); call.
Thanks in advance,
Markus
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