Hi,
I think this behavior is a bug.
Could you apply this patch ?
Or please give me comments.
thanks,
Katsuhito Minai
On 2006年8月31日 14:05:09 +0900
MINAI Katsuhito <minai@xxxxxxxxxxxxxx> wrote:
> Hi,
>
> This patch corrects the following bug. 
>
> The startup of Xen fails when the following values are specified
> for boot option dom0_max_vcpus. 
>
> - Value more than number of physical CPU
> - Negative value
>
>
> Signed-off-by: Katsuhito Minai <minai@xxxxxxxxxxxxxx>
>
>
> diff -r f790546ecfda xen/arch/x86/domain_build.c
> --- a/xen/arch/x86/domain_build.c Mon Aug 28 20:22:56 2006 +0100
> +++ b/xen/arch/x86/domain_build.c Tue Aug 29 17:48:30 2006 +0900
> @@ -671,6 +671,8 @@ int construct_dom0(struct domain *d,
>
> if ( opt_dom0_max_vcpus == 0 )
> opt_dom0_max_vcpus = num_online_cpus();
> + if ( opt_dom0_max_vcpus > num_online_cpus() )
> + opt_dom0_max_vcpus = num_online_cpus();
> if ( opt_dom0_max_vcpus > MAX_VIRT_CPUS )
> opt_dom0_max_vcpus = MAX_VIRT_CPUS;
> printk("Dom0 has maximum %u VCPUs\n", opt_dom0_max_vcpus);
>
>
> Best regards,
> Minai
>
>
>
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