Re: lost memory on a 4GB amd64

[Andi Kleen <ak@muc.de>]

On Sat, Oct 23, 2004 at 12:26:38PM +0200, Sergei Haller wrote:
> On Fri, 22 Oct 2004, Andi Kleen (AK) wrote:
> 
> AK> > I've cc'ed Andi Kleen (x86_64 supremo) who might have some insights, but I'm 
> AK> > guessing he'll say "Bios problem - tough luck". I might be wrong ;)
> AK> 
> AK> Is there a full boot log of the system? 
> 
> yes. attached two files: 
> 
>   dmesg-2.6.9-smp-NUMA   (crashing one)
>   dmesg-2.6.9-smp-noNUMA (working one)

I bet that if you fill all memory on the non NUMA setup
it will crash too.

e.g. run something like this

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>

#define MEMSIZE 
main()
{ 
	unsigned long len = (sysconf(_SC_AVPHYS_PAGES) - 10)* getpagesize();
	char *mem = malloc(len);
	for (;;)  {
		memset(mem, 0xff, len); 
		printf(".");
	}
} 


-Andi