bind9 fails to start on kernel 2.6.11.10

I have a xen-based debian system (domU). bind9 will no longer work after the kernel was upgraded to 2.6.11.10. It worked fine before.

The error is:
leo:/home/mdf# /etc/init.d/bind9 start
Starting domain name service: namednamed: capset failed: Operation not permittednamed: capset failed: Operation not permitted

I've researched it a bit and found it is bug #303777 with Debian.
http://lists.debian.org/debian-kernel/2005/04/msg00442.html

The work around of 'modprobe capability' does not work with the newer xen kernel.
leo:/home/mdf# modprobe capability
FATAL: Could not load /lib/modules/2.6.11.10-xenU/modules.dep: No such file or directory

Note that the error occurs with both bind9-9.2.4-1 (stable) and bind9-9.3.1-1 (testing)