Description of problem: When recreating bug #190756, I kept getting kernel panics with or without my patch to fix the problem. Version-Release number of selected component (if applicable): RHEL4 U4 How reproducible: Happens 25% - 50% of my attempts to recreate 190756. Steps to Reproduce: 1. Export a GFS file system on a 3-node cluster running RHEL4 U4 In my case, roth-01, roth-02 and roth-03. 2. Create a virtual IP xx.xx.xx.250 on the servers, defined to run on two or more of the NFS/GFS servers. 3. NFS mount the file system through the virtual IP on five NFS clients. In my case, trin-12,13,14,15 and 16. 4. Run the genesis QE test case to create a directory for each client, and multiple files inside each. 5. While genesis is running, use the following script to move the virtual IP from node to node: #!/bin/bash for ((a=1; a>0; a++)) do clusvcadm -r xx.xx.xx.250 -m roth-02 sleep 20 clusvcadm -r xx.xx.xx.250 -m roth-01 sleep 20 done exit 0 Actual results: Around 25 to 50% of the runs, the kernel will panic. Expected results: No kernel panic. Additional info: See call trace in the attachment for more information. Also see bz #190756 for additional information. I realize this is an awkward setup, so please contact me if you want me to recreate this. These are only my test clusters, so I can put debug code on easily and let you have the machines to recreate this. Also, let me know if I can help in any way.
Created attachment 144941 [details] Several instances of kernel panic from my test
Three year old issue - please reopen if this still occurs.