From patchwork Mon Sep 20 15:11:03 2010
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: RE : RE : [PATCH] Re: RE : RE : First coreboot build for Tyan s2895
 K8WE mobo with seabios payload, computer starts,
 but graphical ubuntu 64bits is crashing
Date: Mon, 20 Sep 2010 15:11:03 -0000
From: Myles Watson <mylesgw@gmail.com>
X-Patchwork-Id: 1965
Message-Id: <AANLkTinvsngX_H9RogoW5ioPtUwfrM8dFBkEBvePmKuC@mail.gmail.com>
To: "STEMMELIN,
 FREDERIC (FREDERIC)** CTR **" <frederic.stemmelin@alcatel-lucent.com>
Cc: Juhana Helovuo <juhe@iki.fi>,
 "coreboot@coreboot.org" <coreboot@coreboot.org>

On Sun, Sep 19, 2010 at 8:16 AM, STEMMELIN, FREDERIC (FREDERIC)** CTR
** <frederic.stemmelin@alcatel-lucent.com> wrote:
> Now here are my results with the patched Memtest86+ version 4.1.
> Check the attached files.
>
> As you can see it is far way better, even if it is not working, at least i can see that the memory is recognized correctly, wich is pretty good.
> Memtest86+ is still crashing on test starting (after 3%), but really not important so far, as long as my computer does not crash in normal operation mode.

I like using the memtest that comes with my distro, so I add this
simple patch to SeaBIOS when I want to test RAM.  It makes memtest
ignore the Coreboot tables.  I think you'll want to be sure that RAM
is working.

Thanks,
Myles


Index: seabios-master/src/coreboot.c
===================================================================
--- seabios-master.orig/src/coreboot.c
+++ seabios-master/src/coreboot.c
@@ -98,6 +98,7 @@ find_cb_header(char *addr, int len)
         if (ipchksum(addr + sizeof(*cbh), cbh->table_bytes)
             != cbh->table_checksum)
             continue;
+        cbh->signature = CB_SIGNATURE +1;
         return cbh;
     }
     return NULL;