/etc/libvirt/libvirtd.conf mentions to use the file /etc/sasl2/libvirt.conf
to configure the SASL library. That file seems to be ignored. Creating a link
in directory /usr/lib/sasl2/ solves this for me.

ls -lah /usr/lib/sasl2/libvirt.conf
lrwxrwxrwx 1 root root 23 23. Okt 23:29 /usr/lib/sasl2/libvirt.conf -> /etc/sasl2/libvirt.conf

The sasl system in Debian uses /etc/sasl as the first directory on the path with /usr/lib/sasl2 as the second. It doesn't look in /etc/sasl2.

The attached patch to the Ubuntu version of the package changes the relevant references to /etc/sasl2 to /etc/sasl so that sasl will pick up the configuration correctly.


*** /tmp/tmpMEGO91
In Ubuntu, we've applied the attached patch to achieve the following:

  * debian/patches/9024-fix-sasl-config-directory.patch: Ensure that
  references to SASL configuration files mention /etc/sasl and example
  configurations go into that directory (LP: #546745)

We thought you might be interested in doing the same.