Hi, cman defines AF_CLUSTER to be 31, but AF_BLUETOOTH (in-tree) is also defined as 31, so cman doesn't load if bluetooth support is already loaded. 30 seems to be still free.. perhaps that one should be reserved in mainline? cheers, Lennert --- linux/include/linux/socket.h.orig 2004-06-26 20:40:47.876722136 +0200 +++ linux/include/linux/socket.h 2004-06-26 20:41:02.922710013 +0200 @@ -177,6 +177,7 @@ #define AF_PPPOX 24 /* PPPoX sockets */ #define AF_WANPIPE 25 /* Wanpipe API Sockets */ #define AF_LLC 26 /* Linux LLC */ +#define AF_CLUSTER 30 /* GFS Cluster Manager */ #define AF_BLUETOOTH 31 /* Bluetooth sockets */ #define AF_MAX 32 /* For now.. */