I can also confirm and reproduce this bug with kernel 2.6.31-14-generic and openafs 1.4.11+dfsg-1. I tried using openafs compiled for kernel version 2.6.31-14-generic by installing openafs-modules-2.6.31-14-generic, but I encountered the same bug.
I can also confirm and reproduce this bug with kernel 2.6.31-14-generic and openafs 1.4.11+dfsg-1. I tried using openafs compiled for kernel version 2.6.31-14-generic by installing openafs- modules- 2.6.31- 14-generic, but I encountered the same bug.