Historical sidenotes?

[Giorgos Keramidas]

On 2002-01-28 01:51:54, Aggelos Oikovomopoulos wrote:
> Oloi thv exete auth thv ais8hsh. Gia kapoio logo pou dev mporeite va 
> perigrayete, to linux eivai argo. Kaveis dev mporei va pei av auto egive meta 
> apo kapoia sugkekrimevh allagh stov phruva kai akoma kai oi palioteroi 
> 8umouvtai auth thv katastash sav dedomevh. Movo kapoies eikasies eixav givei 
> oti to problhma eivai x86-specific. Shmera, 10+ xrovia meta thv 0.0.1, meta 
> apo evtatikh meleth evos apo ta elaxista merh tou phruva pou exouv apomeivei 
> apo tote, o Ingo Molnar brhke thv phgh tou problhmatos <b>kai apedeije th 
> diaxrovikothta tou</b> (he's sick. I like him).


> --- linux/arch/i386/kernel/setup.c.orig	Sun Jan 27 15:14:43 2002
> +++ linux/arch/i386/kernel/setup.c	Sun Jan 27 16:01:34 2002
> @@ -2803,9 +2803,10 @@
>  	load_TR(nr);
>  	load_LDT(&init_mm);
> 
> -	/*
> -	 * Clear all 6 debug registers:
> -	 */
> +	/* Clear %fs and %gs. */
> +	asm volatile ("xorl %eax, %eax; movl %eax, %fs; movl %eax, %gs");
> +
> +	/* Clear all 6 debug registers: */
> 
>  #define CD(register) __asm__("movl %0,%%db" #register ::"r"(0) );

Ton atimo ton Bruce Evans... to eixe dei kai to diorthose apo to 1994
sto FreeBSD.  Deite to log apo to revision 1.6 tou arxeiou
sys/i386/i386/support.s:

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/i386/i386/support.s?rev=1.6&content-type=text/x-cvsweb-markup

Katebeite mexri to shmeio pou to CVS log anaferetai stis allages tou
support.s kai diabaste to sxolio gia tono 486.

OK ton misw, entajei?

-- 
Giorgos Keramidas . . . . . . . . . keramida@{ceid.upatras.gr,freebsd.org}
FreeBSD Documentation Project . . . http://www.freebsd.org/docproj/
FreeBSD: The power to serve . . . . http://www.freebsd.org/