Hi Thomas, I've checked our lvm2-clvm.spec, and we do have the configs enabled: === --enable-lockd-dlm --enable-lockd-sanlock === I don't know where/when this regression came from:-/ Any suggestion? thanks. $cd lvm2 $grep -rn "LVMLOCKD_SUPPORT" include/configure.h:625:/* #undef LVMLOCKD_SUPPORT */ include/configure.h.in:624:#undef LVMLOCKD_SUPPORT lib/locking/lvmlockd.h:41:#ifdef LVMLOCKD_SUPPORT lib/locking/lvmlockd.h:98:#else /* LVMLOCKD_SUPPORT */ lib/locking/lvmlockd.h:242:#endif /* LVMLOCKD_SUPPORT */ configure:11993:$as_echo "#define LVMLOCKD_SUPPORT 1" >>confdefs.h configure.in:1207: AC_DEFINE([LVMLOCKD_SUPPORT], 1, [Define to 1 to include code that uses lvmlockd.])