Added sun4m caveats to docs...

1 files changed, 15 insertions, 1 deletions

diff --git a/distrib/notes/sparc/hardware b/distrib/notes/sparc/hardware
index 7844bff6e46..2c7d50a37c9 100644
--- a/distrib/notes/sparc/hardware
+++ b/distrib/notes/sparc/hardware
@@ -2,7 +2,7 @@ OpenBSD/sparc 2.1 runs on the following classes of machines:
 	- sun4c (e.g. the SS1, SS1+, SS2, IPC, ELC, IPX, and SLC)
 	- sun4 (e.g. the 4/100, 4/200, and 4/300.   note that support
 		for the 4/400 processor is incomplete)
-	- sun4m (e.g. sparc classic, 4, 5, 10, and 20)
+	- sun4m (e.g. sparc classic, 4, 5, 10, and 20) *** See Notes Below
 
 OpenBSD/sparc 2.1 does NOT run on these machines (yet):
 	- Sun 4/400 (lacking support for the I/O cache, and has
@@ -64,4 +64,18 @@ about:
         Leo (ZX) framebuffer
         S24 (ss5 only) framebuffer
 
+*** Note: sun4m caveats
+  There are some known difficulties with some configurations of 
+sun4m machines.  While the details have not been worked out fully,
+tests show that there are problems with some sun4m systems, depending
+on memory configuration and other factors.  The supplied GENERIC kernel
+is the best attempt at a configuration that works on the widest range of
+machinery (sun4m and otherwise).  Custom kernel configurations for sun4m
+may run into difficulties, GENERIC is your best bet for a stable sun4m. 
+Stability of the sun4m support in OpenBSD is improving, if you have
+problems with the kernel supplied in this OpenBSD 2.1 release, 
+visit the OpenBSD web page (http://www.openbsd.org/), use sendbug,
+and get on the openbsd mailing lists for current information.
+
+