amd64/67745: boot fails on compaq presario r3000z

Jung-uk Kim jkim at
Thu Jul 1 12:13:00 PDT 2004

On Monday 28 June 2004 03:40 am, Jeff Connelly wrote:
> The following reply was made to PR amd64/67745; it has been noted
> by GNATS.
> From: Jeff Connelly <shellreef at>
> To: freebsd-gnats-submit at
> Cc:
> Subject: Re: amd64/67745: boot fails on compaq presario r3000z
> Date: Mon, 28 Jun 2004 00:31:35 -0700
>  FYI Jung-uk Kim responded to this issue but it didn't make it to
> gnats:
>  Anyone want to take a stab at it?

I found a fix and diff's attached.  This hack lets you boot in 'safe 
mode' and seems harmless for Compaq R3000Z.

Somehow this machine shuts down when it issues 'Keyboard Interface 
Test' command (0xab) to port 0x64.

It only boots in 'safe mode' because of broken nForce3/BIOS.  See the 
chipset section from the following link:

We may need to add this in hints as a flag (e. g., 
hint.atkbdc.0.flags) or a MIB (e. g., hw.atkbdc.disable_test).

I only verified in FreeBSD/amd64 but it should work for FreeBSD/i386 
and DragonFlyBSD.


Jung-uk Kim

* PS: Since we have ACPI blacklist feature now, we can blacklist this 
-------------- next part --------------
--- src/sys/dev/kbd/atkbdc.c.orig	Thu Jul  1 12:52:57 2004
+++ src/sys/dev/kbd/atkbdc.c	Thu Jul  1 13:13:20 2004
@@ -944,6 +944,7 @@
 test_kbd_port(KBDC p)
+#if 0
     int retry = KBD_MAXRETRY;
     int again = KBD_MAXWAIT;
     int c = -1;
@@ -965,6 +966,9 @@
     if (verbose || bootverbose)
         log(LOG_DEBUG, "kbdc: TEST_KBD_PORT status:%04x\n", c);
     return c;
+    return 0;

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