The following FSALs are suspect:
src/FSAL/FSAL_VFS/xfs – this is marginally supported, but could be replaced with plain FSAL_VFS
src/FSAL/FSAL_VFS – there is also a Lustre FSAL that is built from this
src/FSAL/FSAL_GLUSTER
src/FSAL/FSAL_LIZARDFS
src/FSAL/FSAL_KVSFS
src/FSAL/FSAL_SAUNAFS