From: Robert Richter <rric@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Ingo Molnar <mingo@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Vince Weaver <vince@deater.net>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH] perf/stat: Add --disable-hwdt
Date: Mon, 6 Feb 2017 14:18:32 +0100 [thread overview]
Message-ID: <20170206131832.GG4906@rric.localdomain> (raw)
In-Reply-To: <20170206124937.zlowglr5gpq35piy@pd.tnic>
On 06.02.17 13:49:37, Borislav Petkov wrote:
> On Mon, Feb 06, 2017 at 01:44:48PM +0100, Ingo Molnar wrote:
> > Yeah, if for some whatever reason perf locks up while running perf stat as root,
> > so I'd keep the option, as a general principle. :-/
>
> --dont-disable-hwdt it is.
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.
-Robert
next prev parent reply other threads:[~2017-02-06 13:18 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-06 12:15 Borislav Petkov
2017-02-06 12:22 ` Ingo Molnar
2017-02-06 12:41 ` Borislav Petkov
2017-02-06 12:44 ` Ingo Molnar
2017-02-06 12:49 ` Borislav Petkov
2017-02-06 13:18 ` Robert Richter [this message]
2017-02-06 13:23 ` Borislav Petkov
2017-02-07 7:25 ` Ingo Molnar
2017-02-07 10:54 ` Borislav Petkov
2017-02-07 15:06 ` Borislav Petkov
2017-02-11 17:03 ` Borislav Petkov
2017-02-11 17:59 ` Ingo Molnar
2017-02-11 18:32 ` Borislav Petkov
2017-02-11 20:41 ` Ingo Molnar
2017-03-07 7:21 ` [tip:perf/core] perf stat: Issue a HW watchdog disable hint tip-bot for Borislav Petkov
2017-02-06 14:23 ` [RFC PATCH] perf/stat: Add --disable-hwdt Vince Weaver
2017-02-06 17:02 ` Borislav Petkov
2017-02-07 1:08 ` Borislav Petkov
2017-02-07 1:09 ` [PATCH 1/2] tools/lib/api/fs: Add procfs int read/write helpers Borislav Petkov
2017-02-07 1:43 ` Arnaldo Carvalho de Melo
2017-02-07 10:30 ` Borislav Petkov
2017-02-07 15:00 ` Arnaldo Carvalho de Melo
2017-02-07 15:08 ` Borislav Petkov
2017-02-07 15:34 ` Arnaldo Carvalho de Melo
2017-02-07 1:10 ` [PATCH 2/2] perf stat: Disable HW watchdog around a perf stat session Borislav Petkov
2017-02-07 1:45 ` Arnaldo Carvalho de Melo
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