linux-kernel - Re: [RFC][PATCH 4/3] tracing: Add NMI tracing in hwlat detector

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Date:	Wed, 10 Aug 2016 10:10:05 -0400
From:	Jon Masters <jcm@...hat.com>
To:	Steven Rostedt <rostedt@...dmis.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Clark Williams <williams@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Daniel Wagner <wagi@...om.org>, Carsten Emde <C.Emde@...dl.org>
Subject: Re: [RFC][PATCH 4/3] tracing: Add NMI tracing in hwlat detector

On 08/05/2016 10:52 AM, Steven Rostedt wrote:

> Ah, this is when we have GENERIC_SCHED_CLOCK, which would break tracing
> if any arch that has this also has NMIs. Probably need to look at arm64.

Today, we don't have NMIs on arm64 that are supported in Linux.

Jon.

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