linux-kernel - Re: nmi_watchdog suspicious

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Date:	Sat, 21 Jun 2008 12:04:40 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	"Maciej W. Rozycki" <macro@...ux-mips.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: nmi_watchdog suspicious

[Maciej W. Rozycki - Sat, Jun 21, 2008 at 02:54:38AM +0100]
| On Wed, 18 Jun 2008, Cyrill Gorcunov wrote:
| 
| > If you mean the case we get NMI physical line assetred while configuring APIC
| > (ie nmi watchdog is not properly configured yet) then I wonder why we has
| > this checking at all...
| 
|  Hmm, I am not sure what you mean -- nmi_watchdog_tick() can be called
| potentially at any time, and you can receive NMIs from sources other than
| the watchdog; the latters would set bits in the Port B at 0x61 in most
| cases though.  Anyway using a separate variable such as
| "nmi_watchdog_active" would be cleaner.
| 
|   Maciej
| 

ok, thanks Maciej, i'll take a look on this.

		- Cyrill -
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