linux-kernel - Re: [PATCH] conditionalize call from panic() to smp_send

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Date:	Thu, 15 Jan 2009 09:16:11 +0000
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	"Andi Kleen" <andi@...stfloor.org>
Cc:	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] conditionalize call from panic() to
	 smp_send_stop()

>>> Andi Kleen <andi@...stfloor.org> 15.01.09 04:34 >>>
>"Jan Beulich" <jbeulich@...ell.com> writes:
>
>> ... avoiding nested warnings and/or oopses as much as possible (namely
>> durin early boot).
>
>Better would be to fix smp_send_stop than to work around it for this
>very limited case. I've been running into this with machine checks
>too. The new fancy smp_call_function() that is there now just doesn't
>work in any unusual situation like early boot or fatal exceptions,

Indeed - I wasn't used to smp_call_function...() to be generic functions
that can be fixed for all architectures at once. I simply wanted to avoid
needing individual changes in all architectures...

Jan



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