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

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Message-ID: <490B7B6F.2080800@kernel.org>
Date:	Fri, 31 Oct 2008 14:41:03 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Cyrill Gorcunov <gorcunov@...il.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

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

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