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Date: Thu, 25 Jul 2013 16:22:15 +0800
From: Chen Gang <gang.chen@asianux.com>
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To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH v2] powerpc: kernel: remove useless code which related
 with 'max_cpus'
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On 07/25/2013 04:06 PM, Benjamin Herrenschmidt wrote:
> On Thu, 2013-07-25 at 15:59 +0800, Chen Gang wrote:
>>
>> For my opinion: one fix may like below (assume have removed max_cpus)
>> which is more reasonable for code readers.
> 
> So instead of just failing to bring the secondary CPUs, but potentially
> still having a working system, you crash during boot.... potentially
> before a console is even visible. And this is good how ?
> 

Hmm... how about the above DBG("...") within this function ?

One implementation of BUG_ON() is use printk() and coredump, if it is a
critical failure, I suggest to use it (if console is really invisible, I
guess still can generate the coredump).

Hmm... But do you mean it really can be failed, but it is not a critical
failure ? if so we need print the related warning message instead of.

Thanks.
-- 
Chen Gang