FAUCET <> Lagopus DPDK crash

[mbruyere]

Issue Type

• Bug report
• Feature proposal

Summary

LAGOPUS DPDK crashed after FAUCET RYU pushed initial OF rules please find below the config fil and OFChannel debug log file.

Bug report

Expected behavior

No crash

Actual behavior

LAGOPUS DPDK crash and generate core dump right after FAUCET connect.

Environment

LAGOPUS 0.2.10
Ubuntu 16.04
Intel NIC DPDK compliant
DELL server
FAUCET 1.3.2

Steps to reproduce

Get FAUCET with the config below or any others config could cause LAGOPUS DPDK to crash.

Relevant logs

FAUCET config:
faucet config.txt

OFchannel debug log file from FAUCET:
ofchannel degub log faucet to lagopus.txt

Links / reference

FAUCET code
https://github.com/REANNZ/faucet

[hirokazutakahashi]

Hi @mbruyere ,

Thank you for your report.
I successfully reproduced the issue and found a bug in the flow table compaction function of Lagopus.
I prepared the fix at my own repository. I haven't merged yet.
https://github.com/hirokazutakahashi/lagopus/commit/6e4244d
Plz try this.

[hirokazutakahashi]

The fix was merged to the master branch and 0.2.11 release. Please test it.