diff -NurpP --minimal linux-2.6.25.11-vs2.3.0.34.13.3/include/linux/vserver/space_cmd.h linux-2.6.25.11-vs2.3.0.34.13.4/include/linux/vserver/space_cmd.h
--- linux-2.6.25.11-vs2.3.0.34.13.3/include/linux/vserver/space_cmd.h	2008-07-15 22:53:10.000000000 -0400
+++ linux-2.6.25.11-vs2.3.0.34.13.4/include/linux/vserver/space_cmd.h	2008-07-16 00:21:29.000000000 -0400
@@ -23,7 +23,7 @@ struct	vcmd_space_mask {
 
 extern int vc_enter_space(struct vx_info *, void __user *);
 extern int vc_set_space(struct vx_info *, void __user *);
-extern int vc_get_space_mask(struct vx_info *, void __user *, int);
+extern int vc_get_space_mask(void __user *, int);
 
 #endif	/* __KERNEL__ */
 #endif	/* _VX_SPACE_CMD_H */
diff -NurpP --minimal linux-2.6.25.11-vs2.3.0.34.13.3/kernel/vserver/space.c linux-2.6.25.11-vs2.3.0.34.13.4/kernel/vserver/space.c
--- linux-2.6.25.11-vs2.3.0.34.13.3/kernel/vserver/space.c	2008-07-15 23:36:41.000000000 -0400
+++ linux-2.6.25.11-vs2.3.0.34.13.4/kernel/vserver/space.c	2008-07-16 00:21:04.000000000 -0400
@@ -223,6 +223,9 @@ int vx_enter_space(struct vx_info *vxi, 
 	struct fs_struct *fs, *fs_cur, *fs_new;
 	int ret;
 
+	vxdprintk(VXD_CBIT(space, 8), "vx_enter_space(%p[#%u],0x%08lx)",
+		vxi, vxi->vx_id, mask);
+
 	if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0))
 		return -EACCES;
 
@@ -278,6 +281,8 @@ int vx_set_space(struct vx_info *vxi, un
 	struct fs_struct *fs_vxi, *fs_cur, *fs_new;
 	int ret;
 
+	vxdprintk(VXD_CBIT(space, 8), "vx_set_space(%p[#%u],0x%08lx)",
+		vxi, vxi->vx_id, mask);
 #if 0
 	if (!mask)
 		mask = default_space_mask.mask;
@@ -346,7 +351,7 @@ int vc_set_space(struct vx_info *vxi, vo
 	return vx_set_space(vxi, vc_data.mask);
 }
 
-int vc_get_space_mask(struct vx_info *vxi, void __user *data, int type)
+int vc_get_space_mask(void __user *data, int type)
 {
 	const struct vcmd_space_mask *mask;
 
@@ -357,6 +362,9 @@ int vc_get_space_mask(struct vx_info *vx
 	else
 		mask = &default_space_mask;
 
+	vxdprintk(VXD_CBIT(space, 10),
+		"vc_get_space_mask(%d) = %08llx", type, mask->mask);
+
 	if (copy_to_user(data, mask, sizeof(struct vcmd_space_mask)))
 		return -EFAULT;
 	return 0;
diff -NurpP --minimal linux-2.6.25.11-vs2.3.0.34.13.3/kernel/vserver/switch.c linux-2.6.25.11-vs2.3.0.34.13.4/kernel/vserver/switch.c
--- linux-2.6.25.11-vs2.3.0.34.13.3/kernel/vserver/switch.c	2008-07-15 23:34:13.000000000 -0400
+++ linux-2.6.25.11-vs2.3.0.34.13.4/kernel/vserver/switch.c	2008-07-16 00:21:47.000000000 -0400
@@ -99,13 +99,13 @@ long do_vcmd(uint32_t cmd, uint32_t id,
 		return vc_set_space(vxi, data);
 
 	case VCMD_get_space_mask_v0:
-		return vc_get_space_mask(vxi, data, 0);
+		return vc_get_space_mask(data, 0);
 	/* this is version 1 */
 	case VCMD_get_space_mask:
-		return vc_get_space_mask(vxi, data, 1);
+		return vc_get_space_mask(data, 1);
 
 	case VCMD_get_space_default:
-		return vc_get_space_mask(vxi, data, -1);
+		return vc_get_space_mask(data, -1);
 
 #ifdef	CONFIG_IA32_EMULATION
 	case VCMD_get_rlimit: