Re: 2.6.12 hangs on boot

From: Alexander Y. Fomichev
Date: Tue Jul 19 2005 - 06:55:28 EST


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@xxxxxxx>
>
> 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@xxxxxxx>
Public PGP key: http://sysadminday.org.ru/gluk.asc
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