From: Alexander Y. Fomichev <gluk@php4.ru>
Date: Tue, 19 Jul 2005 11:53:12 GMT
Subject: Re: 2.6.12 hangs on boot
Message-ID: <200507191553.12741.gluk@php4.ru>
In-Reply-To: <20050718125857.GF8459@wotan.suse.de>

On Monday 18 July 2005 16:58, Andi Kleen wrote:
> Can you please test if this patch fixes it?
>
> -Andi
>
>
> Don't compare linux processor index with APICID
>
> Fixes boot up lockups on some machines where CPU apic ids
> don't start with 0
>
> Signed-off-by: Andi Kleen <ak@suse.de>
>
> Index: linux/arch/x86_64/kernel/smpboot.c
> ===================================================================
> --- linux.orig/arch/x86_64/kernel/smpboot.c
> +++ linux/arch/x86_64/kernel/smpboot.c
> @@ -211,7 +211,7 @@ static __cpuinit void sync_master(void *
>  {
>  	unsigned long flags, i;
>
> -	if (smp_processor_id() != boot_cpu_id)
> +	if (smp_processor_id() != 0)
>  		return;
>
>  	go[MASTER] = 0;

No, sorry, the same result -- hangs just after:

Booting processor 2/1 rip 6000 rsp ffff8100dff7df58
Initializing CPU#2

(hmm... as i can see one string above [and if i understand correctly]
boot_cpu_id == 0 in my case: 
CPU 1: Syncing TSC to CPU 0 )

-- 
Best regards.
        Alexander Y. Fomichev <gluk@php4.ru>
        Public PGP key: http://sysadminday.org.ru/gluk.asc