Add an entry about the changes in the statfs structure that require

kernel and user land applications doing statfs to be in sync.

Requested by:	Johan Karlsson <johan@FreeBSD.org>

UPDATING

@@ -18,15 +18,25 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 5.x IS SLOW:
 	to maximize performance.
 
 20031112:
- 	Some netgraph string length constants have been changed. This
- 	change requires the netgraph kernel modules and all netgraph
- 	userland components to be in sync. Especially users who require
- 	netgraph to boot need to make sure to have world and kernel in
- 	sync before rebooting.
+	The statfs structure has been updated with 64-bit fields to allow
+	accurate reporting of multi-terabyte filesystem sizes. You should
+	build and boot a new kernel BEFORE doing a `make world' as the new
+	kernel will know about binaries using the old statfs structure,
+	but an old kernel will not know about the new system calls that
+	support the new statfs structure. Running an old kernel after a 
+	`make world' will cause programs such as `df' that do a statfs
+	system call to fail with a bad system call.
+
+20031112:
+	Some netgraph string length constants have been changed. This
+	change requires the netgraph kernel modules and all netgraph
+	userland components to be in sync. Especially users who require
+	netgraph to boot need to make sure to have world and kernel in
+	sync before rebooting.
 
 20031103:
 	The i386 APIC_IO kernel option has been replaced by
-        'device apic'.  The ACPI module has also been temporarily
+	'device apic'.  The ACPI module has also been temporarily
 	disabled, so ACPI must be statically compiled into your
 	kernel using 'device acpi' if you wish to use the ACPI driver.