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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2021/09/03 21:20:54 UTC
[GitHub] [incubator-nuttx] a-lunev commented on pull request #4433: net/devif/devif_callback.c: corrected the connection event list to work as FIFO instead of LIFO
a-lunev commented on pull request #4433:
URL: https://github.com/apache/incubator-nuttx/pull/4433#issuecomment-912817220
> @a-lunev do you have a suggested setup to trigger to issue? You said it happens on high network traffic, but is it possible to reproduce it using the simulator?
Hi Alan,
Initially I experienced the issue on my custom board design.
Now I was able to reproduce the issue using NuttX "sim" board.
(Another [PR](https://github.com/apache/incubator-nuttx-apps/pull/844) needs to be applied to the apps repo for testing).
Steps to reproduce the issue:
```
$ git clone https://github.com/apache/incubator-nuttx.git nuttx
$ git clone https://github.com/apache/incubator-nuttx-apps apps
$ cd nuttx
$ ./tools/configure.sh -l sim:ipforward
$ make
$ ./nuttx
NuttShell (NSH) NuttX-10.1.0
nsh> ipfwd
```
The following log shows how the last two packets are received in a reverse order:
Created TUN device: tun0
Created TUN device: tun1
**Sending packet 1**: size=83
IP Header:
60000000002b06ff7c00000000000000 00000000000000627c00000000000000
0000000000010147
TCP Header:
**1234**abcd000000000000000050000000 6b110000
Payload:
48692074686572652054554e20726563 65697665722100
83 bytes sent
**Sending packet 2**: size=83
IP Header:
60000000002b06ff7c00000000000000 00000000000000627c00000000000000
0000000000010147
TCP Header:
**1235**abcd000000000000000050000000 6b100000
Payload:
48692074686572652054554e20726563 65697665722100
83 bytes sent
**Sending packet 3**: size=83
IP Header:
60000000002b06ff7c00000000000000 00000000000000627c00000000000000
0000000000010147
TCP Header:
**1236**abcd000000000000000050000000 6b0f0000
Payload:
48692074686572652054554e20726563 65697665722100
83 bytes sent
**Received packet 1**: size=83
IP Header:
60000000002b06fe7c00000000000000 00000000000000627c00000000000000
0000000000010147
TCP Header:
**1234**abcd000000000000000050000000 6b110000
Payload:
48692074686572652054554e20726563 65697665722100
**Received packet 2**: size=83
IP Header:
60000000002b06fe7c00000000000000 00000000000000627c00000000000000
0000000000010147
TCP Header:
**1236**abcd000000000000000050000000 6b0f0000
Payload:
48692074686572652054554e20726563 65697665722100
**Received packet 3**: size=83
IP Header:
60000000002b06fe7c00000000000000 00000000000000627c00000000000000
0000000000010147
TCP Header:
**1235**abcd000000000000000050000000 6b100000
Payload:
48692074686572652054554e20726563 65697665722100
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