diff -r a7a805f15593 usr.bin/fstat/zfs.c
--- a/usr.bin/fstat/zfs.c	Tue May 26 21:56:18 2009 +0000
+++ b/usr.bin/fstat/zfs.c	Wed May 27 19:41:13 2009 +0000
@@ -29,6 +29,7 @@
 #include <sys/param.h>
 #define _KERNEL
 #include <sys/mount.h>
+#include <sys/_task.h>
 #undef _KERNEL
 #include <sys/sysctl.h>
 
@@ -57,7 +58,8 @@
  * definition.
  */
 #define LOCATION_ZID (2 * sizeof(void *))
-#define LOCATION_ZPHYS(zsize) ((zsize) - (2 * sizeof(void *)))
+#define LOCATION_ZPHYS(zsize) ((zsize) -	\
+    (2 * sizeof(void *)) - sizeof(struct task))
 
 int
 zfs_filestat(struct vnode *vp, struct filestat *fsp)