[lwip-devel] [bug #45085] Assert in V1.4.1 : pbuf.c: 525

[Wilfred]

URL:
  <http://savannah.nongnu.org/bugs/?45085>

                 Summary: Assert in V1.4.1 : pbuf.c: 525
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: will
            Submitted on: Tue 12 May 2015 04:37:47 PM GMT
                Category: pbufs
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: 1.4.1

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Details:

I get an assert in LwIP version 1.4.1 : pbuf.c: line 525. I am running LwIP on
Windows ('win32' port) using the pcap driver.

The assert:
LWIP_ERROR("increment_magnitude <= p->len", (increment_magnitude <= p->len),
return 1;);

The data:
increment_magnitude=20
p->len=0

The stack trace:
pbuf_header(pbuf * p, short header_size_increment)  Line 525    C
tcp_input(pbuf * p, netif * inp)  Line 116 + 0x1d bytes C
ip_input(pbuf * p, netif * inp)  Line 574 + 0xd bytes   C
ethernet_input(pbuf * p, netif * netif)  Line 1363 + 0xd bytes  C
tcpip_thread(void * arg)  Line 103 + 0x13 bytes C

I have ported a fairly network intensive application to the netconn API. Any
ideas on why I get this assert?






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