[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [lwip-users] lwIP hangs after sending to much data
From: |
Kieran Mansley |
Subject: |
Re: [lwip-users] lwIP hangs after sending to much data |
Date: |
Mon, 04 Jul 2011 13:40:14 +0100 |
On Mon, 2011-07-04 at 13:02 +0200, brak brak2 wrote:
>
> I attached pcap file from Wireshark 1.6.
OK, in there we see:
1) .199 sends a duplicate SYN-ACK in response to the HTTP Get request
(TCP seq 6550)
2) .58 dup-acks this, and then retransmits the HTTP Get request
3) .199 sends an ACK (TCP seq 9471), but there's some bytes missing: TCP
sequence bytes 6550->9471
This all looks like packets are being dropped somewhere. I would turn
on lwIP's debugging and (i) see what it thinks it is sending, and (ii)
see what the LWIP_STATS code has to say incase there are resource
problems that are causing the drops.
Kieran