linux-kernel - Re: [PATCH 0/5] x86: NMI watchdog downgrade changes

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Message-ID: <Pine.LNX.4.55.0806081401130.15673@cliff.in.clinika.pl>
Date:	Sun, 8 Jun 2008 14:13:37 +0100 (BST)
From:	"Maciej W. Rozycki" <macro@...ux-mips.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5] x86: NMI watchdog downgrade changes

On Sun, 8 Jun 2008, Ingo Molnar wrote:

> applied, thanks Maciej. This series resolved another nmi_watchdog 
> related boot failure i found today.

 Well, APIC code starts breaking in an unobvious way when you start
throwing random kernel parameters at it.  Which is the reason I am so
hesitant about adding more of them, especially the obscurer ones.  Nobody
tests them seriously beyond the original submission, which actually may
not cover all the important cases either, and then bit rot accumulates.

 Have you tried "nolapic" on an SMP system, BTW?

  Maciej
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