linux-kernel - Re: [v2 PATCH 0/3] Use NMI to stop cpus

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Message-ID: <20111108192509.GB5629@redhat.com>
Date:	Tue, 8 Nov 2011 14:25:09 -0500
From:	Don Zickus <dzickus@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	x86@...nel.org
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Robert Richter <robert.richter@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	seiji.aguchi@....com, vgoyal@...hat.com, mjg@...hat.com,
	tony.luck@...el.com, gong.chen@...el.com, satoru.moriya@....com,
	avi@...hat.com
Subject: Re: [v2 PATCH 0/3] Use NMI to stop cpus

On Thu, Oct 13, 2011 at 03:14:24PM -0400, Don Zickus wrote:
> This patch series attempts to use NMI to stop cpus instead of the
> REBOOT_VECTOR irq.  The idea is to have a more robust and reliable
> way to stop cpus when serializing things like the panic path.

poke?  Any feedback on this now that rc-1 is out and things hopefully
calmed down a bit. :-)

Cheers,
Don

> 
> More details in the changelogs.
> 
> Don Zickus (3):
>   x86, reboot:  Use NMI instead of REBOOT_VECTOR to stop cpus
>   x86, NMI: Add NMI IPI selftest
>   x86, NMI: knob to disable using NMI IPIs to stop cpus
> 
>  Documentation/kernel-parameters.txt |    4 +
>  arch/x86/Kconfig.debug              |   12 +++
>  arch/x86/include/asm/smp.h          |    6 +
>  arch/x86/kernel/Makefile            |    1 +
>  arch/x86/kernel/nmi_selftest.c      |  179 +++++++++++++++++++++++++++++++++++
>  arch/x86/kernel/smp.c               |   72 ++++++++++++++-
>  arch/x86/kernel/smpboot.c           |    1 +
>  7 files changed, 273 insertions(+), 2 deletions(-)
>  create mode 100644 arch/x86/kernel/nmi_selftest.c
> 
> -- 
> 1.7.6.4
> 
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