linux-kernel - Re: [PATCH] x86: nmi - document lapic and ioapic parameters

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Date:	Sat, 1 Nov 2008 08:56:11 +0300
From:	"Cyrill Gorcunov" <gorcunov@...il.com>
To:	"Yinghai Lu" <yinghai@...nel.org>
Cc:	"H. Peter Anvin" <hpa@...or.com>, "Ingo Molnar" <mingo@...e.hu>,
	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	"Aristeu Rozanski" <aris@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Thomas Gleixner" <tglx@...utronix.de>
Subject: Re: [PATCH] x86: nmi - document lapic and ioapic parameters

On Sat, Nov 1, 2008 at 12:41 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> H. Peter Anvin wrote:
>> Yinghai Lu wrote:
>>> On Fri, Oct 31, 2008 at 12:23 PM, Cyrill Gorcunov <gorcunov@...il.com> wrote:
>>>> Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
>>>> ---
>>>>
>>>> On top of -tip dda51106620c328b50007c259b9ef8cea2b7c3d2
>>>>
>>>> Index: linux-2.6.git/Documentation/kernel-parameters.txt
>>>> ===================================================================
>>>> --- linux-2.6.git.orig/Documentation/kernel-parameters.txt      2008-10-27 21:35:08.000000000 +0300
>>>> +++ linux-2.6.git/Documentation/kernel-parameters.txt   2008-10-31 22:21:59.000000000 +0300
>>>> @@ -1404,6 +1404,14 @@ and is between 256 and 4096 characters.
>>>>                        Format: [state][,regs][,debounce][,die]
>>>>
>>>>        nmi_watchdog=   [KNL,BUGS=X86-32] Debugging features for SMP kernels
>>>> +                       Format: [panic,][num]
>>>> +                       Valid num: 0,1,2
>>>> +                       0 - turn nmi_watchdog off
>>>> +                       1 - use IO-APIC
>>>> +                       2 - use local APIC
>>>> +                       Instead of 1 and 2 it is possible to use the following
>>>> +                       symbolic names: lapic and ioapic
>>>> +                       Example: nmi_watchdog=2 or nmi_watchdog=panic,lapic
>>>>
>>>>        no387           [BUGS=X86-32] Tells the kernel to use the 387 maths
>>>>                        emulation library even if a 387 maths coprocessor
>>>> --
>>> please update
>>>
>>> Documentation/x86/x86_64/boot-options.txt
>>>
>>
>> If it's in x86-64, it's not =X86-32, so something is fishy.  The
>> x86_64/boot-options.txt file really should be merged into
>> kernel-parameters.txt.
>
> should have all command line etc in source code .c, and use some tools to extract them to keep them consistent.
>
> YH
>
>

Will update boot-options.txt by a separate patch later. Thanks!
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