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Date: Mon, 18 Nov 2002 20:09:58 +0100
From: Manfred Spraul <manfred@colorfullife.com>
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To: Linus Torvalds <torvalds@transmeta.com>
CC: William Lee Irwin III <wli@holomorphy.com>,
       "Martin J. Bligh" <mbligh@aracnet.com>, linux-kernel@vger.kernel.org
Subject: Re: Linux v2.5.48
References: <Pine.LNX.4.44.0211181056170.1018-100000@penguin.transmeta.com>
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Linus Torvalds wrote:

>On Mon, 18 Nov 2002, Manfred Spraul wrote:
>  
>
>>I think this patch should keep the interrupts disabled until after
>>smp_commenced is set. It's partially tested: bochs boots until all cpus
>>are up and then crashes.
>>    
>>
>
>This patch certainly cannot work: calibrate_delay() needs interrupts.
>  
>
Not really. calibrate_delay needs interrupts on one cpu.
The boot cpu is still around, and spinning with enabled interrupts in 
do_boot_cpu().

I haven't checked the irq routing, the timer must be fixed to the boot 
cpu, otherwise my patch is unreliable/incomplete.

--
    Manfred


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