A kernel panic occurs when the bonding module is unloaded after bringing down the bonding device.

This document (7004798) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 10 Service Pack 3

Situation

When using tlb or alb bonding modes, a kernel panic occurs when the bonding module is unloaded ("rmmod bonding") after bringing down the bonding device ("ifconfig bond0 down").
 

Steps to Reproduce

1. modprobe bonding mode=balance-tlb miimon=100
2. ifconfig bond0 172.16.64.168 netmask 255.255.192.0
3. ifenslave bond0 eth0
4. ifenslave bond0 eth1
5. echo hello | nc6 172.16.64.92 100
6. ifconfig bond0 down
7. rmmod bonding

Resolution

Use an updated bonding driver.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7004798
  • Creation Date: 04-Nov-2009
  • Modified Date:14-Mar-2021
    • SUSE Linux Enterprise Server

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