From: Ingo Molnar <mingo@kernel.org>
To: Don Zickus <dzickus@redhat.com>
Cc: akpm@linux-foundation.org, kvm@vger.kernel.org,
pbonzini@redhat.com, mingo@redhat.com,
LKML <linux-kernel@vger.kernel.org>,
Ulrich Obergfell <uobergfe@redhat.com>,
Andrew Jones <drjones@redhat.com>
Subject: Re: [PATCH 4/5] watchdog: control hard lockup detection default
Date: Mon, 18 Aug 2014 11:16:44 +0200 [thread overview]
Message-ID: <20140818091644.GE25495@gmail.com> (raw)
In-Reply-To: <1407768567-171794-5-git-send-email-dzickus@redhat.com>
* Don Zickus <dzickus@redhat.com> wrote:
> The running kernel still has the ability to enable/disable at any
> time with /proc/sys/kernel/nmi_watchdog us usual. However even
> when the default has been overridden /proc/sys/kernel/nmi_watchdog
> will initially show '1'. To truly turn it on one must disable/enable
> it, i.e.
> echo 0 > /proc/sys/kernel/nmi_watchdog
> echo 1 > /proc/sys/kernel/nmi_watchdog
This looks like a bug, why is this so?
Thanks,
Ingo
next prev parent reply other threads:[~2014-08-18 9:16 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 14:49 [PATCH 0/5] watchdog: various fixes Don Zickus
2014-08-11 14:49 ` [PATCH 1/5] watchdog: remove unnecessary head files Don Zickus
2014-08-18 18:03 ` [tip:perf/watchdog] watchdog: Remove unnecessary header files tip-bot for chai wen
2014-08-11 14:49 ` [PATCH 2/5] softlockup: make detector be aware of task switch of processes hogging cpu Don Zickus
2014-08-18 9:03 ` Ingo Molnar
2014-08-18 15:06 ` Don Zickus
2014-08-18 18:01 ` Ingo Molnar
2014-08-18 18:43 ` Don Zickus
2014-08-18 19:02 ` Ingo Molnar
2014-08-18 20:38 ` Don Zickus
2014-08-19 1:36 ` Chai Wen
2014-08-21 1:37 ` Chai Wen
2014-08-21 2:30 ` Don Zickus
2014-08-21 5:42 ` [PATCH] " chai wen
2014-08-22 1:12 ` Chai Wen
2014-08-22 1:58 ` Don Zickus
2014-08-26 12:51 ` Chai Wen
2014-08-26 14:22 ` Don Zickus
2014-08-27 1:33 ` Chai Wen
2014-08-11 14:49 ` [PATCH 3/5] watchdog: fix print-once on enable Don Zickus
2014-08-18 9:05 ` Ingo Molnar
2014-08-18 9:07 ` Ingo Molnar
2014-08-18 15:07 ` Don Zickus
2014-08-18 18:03 ` [tip:perf/watchdog] watchdog: Fix " tip-bot for Ulrich Obergfell
2014-08-11 14:49 ` [PATCH 4/5] watchdog: control hard lockup detection default Don Zickus
2014-08-18 9:12 ` Ingo Molnar
2014-08-18 15:07 ` Don Zickus
2014-08-18 9:16 ` Ingo Molnar [this message]
2014-08-18 10:44 ` Ulrich Obergfell
2014-08-18 15:17 ` Don Zickus
2014-08-18 18:07 ` Ingo Molnar
2014-08-18 18:53 ` Don Zickus
2014-08-18 19:00 ` Ingo Molnar
2014-08-11 14:49 ` [PATCH 5/5] kvm: ensure hard lockup detection is disabled by default Don Zickus
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