On Monday 02 November 2009 15:57:52 Martin Hicks wrote:
>
> Okay, I found a bug that SGI has hacked around on our boxborough-EX
> machines that looks similar. The bug wasn't assigned to me, so I
didn't
> know it was hacked around. :)
>
> Can you try this (may not apply. I cut & pasted)? Obviously it's a
> terribly patch, but it'll show us if it's the same problem.
>
> Index: linux/arch/x86/kdb/kdba_io.c
> ===================================================================
> --- linux.orig/arch/x86/kdb/kdba_io.c 2009-02-11 08:57:34.000000000
-0600
> +++ linux/arch/x86/kdb/kdba_io.c 2009-02-12 08:39:09.000000000
-0600
> @@ -564,7 +564,7 @@ get_char_func poll_funcs[] = {
>
> void kdba_local_arch_setup(void)
> {
> -#ifdef CONFIG_VT_CONSOLE
> +#ifdef ZZCONFIG_VT_CONSOLE
> int timeout;
> unsigned char c;
>
> @@ -589,7 +589,7 @@ void kdba_local_arch_setup(void)
>
> void kdba_local_arch_cleanup(void)
> {
> -#ifdef CONFIG_VT_CONSOLE
> +#ifdef ZZCONFIG_VT_CONSOLE
> int timeout;
> unsigned char c;
Unfortunately this did not work.
Thomas
> This was in our stack of patches that we thought were just working
> around bugs in our BIOS. It seems that our BIOS always returns 0xff
> while reading from 0x64.
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