Re: [PATCH] linux-2.4.23-pre5_nrcpus-fix_A1

[Marcelo Tosatti]

On 24 Sep 2003, john stultz wrote:

> On Tue, 2003-09-23 at 17:59, john stultz wrote:
> > Marcelo, all,
> > 	This is a backported patch from 2.5 that fixes array overflows and
> > memory corruption when booting on boxes with more processors then
> > CONFIG_NR_CPUS. 
> > 
> 
> Marcelo, All,
> 	James Cleverdon pointed out that I had a printk formatting typo in the
> last revision of this patch ( "0x%d" - doh!).
> 
> Anyway, this revision corrects the error, changing 0x%d -> 0x%x.
> 
> thanks
> -john
> 
> diff -Nru a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
> --- a/arch/i386/kernel/mpparse.c	Wed Sep 24 15:02:51 2003
> +++ b/arch/i386/kernel/mpparse.c	Wed Sep 24 15:02:51 2003
> @@ -229,6 +229,11 @@
>  		boot_cpu_logical_apicid = logical_apicid;
>  	}
>  
> +	if (num_processors >= NR_CPUS){
> +		printk(KERN_WARNING "NR_CPUS limit of %i reached. Cannot "
> +			"boot CPU(apicid 0x%x).\n", NR_CPUS, m->mpc_apicid);
> +		return;
> +	}
>  	num_processors++;
>  
>  	if (m->mpc_apicid > MAX_APICS) {

Applied thanks.







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