linux-kernel - Re: [RFC PATCH] perf/stat: Add --disable-hwdt

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Message-ID: <20170206132349.bl6qbpjflez3lpkp@pd.tnic>
Date:   Mon, 6 Feb 2017 14:23:49 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Robert Richter <rric@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Vince Weaver <vince@...ter.net>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] perf/stat: Add --disable-hwdt

On Mon, Feb 06, 2017 at 02:18:32PM +0100, Robert Richter wrote:
> Isn't there the danger the previous watchdog state is never restored
> if for some reason perf got killed? So maybe have some other task
> running that restores it once perf is gone.

Currently, I'm restoring it in the atexit() sighandler. Isn't that
always called?

-- 
Regards/Gruss,
    Boris.

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