--- ./fs/nfs/dir.c.orig	2005-02-07 23:05:05.000000000 +0100
+++ ./fs/nfs/dir.c	2005-02-07 23:06:39.000000000 +0100
@@ -1508,6 +1508,8 @@
 	cache.cred = cred;
 	cache.jiffies = jiffies;
 	status = NFS_PROTO(inode)->access(inode, &cache);
+	dfprintk(VFS, "NFS: access()=%d for ino %lu, cred %p, mask 0x%x->0x%x\n",
+		 status, inode->i_ino, cred, mask, cache.mask);
 	if (status != 0)
 		return status;
 	nfs_access_add_cache(inode, &cache);
@@ -1521,6 +1523,7 @@
 {
 	struct rpc_cred *cred;
 	int res;
+	struct rpc_groups fsg = { 1, { inode->i_gid } };
 
 	if (mask == 0)
 		return 0;
@@ -1540,7 +1543,7 @@
 	if (!NFS_PROTO(inode)->access)
 		goto out_notsup;
 
-	cred = rpcauth_lookupcred(NFS_CLIENT(inode)->cl_auth, NULL, 0);
+	cred = rpcauth_lookupcred(NFS_CLIENT(inode)->cl_auth, &fsg, 0);
 	res = nfs_do_access(inode, cred, mask);
 	put_rpccred(cred);
 	unlock_kernel();