From: Andrew Morton <akpm@linux-foundation.org>
To: Max Kellermann <max.kellermann@ionos.com>
Cc: song@kernel.org, joel.granados@kernel.org, dianders@chromium.org,
cminyard@mvista.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] kernel/watchdog: add /sys/kernel/{hard,soft}lockup_count
Date: Sat, 3 May 2025 19:47:06 -0700 [thread overview]
Message-ID: <20250503194706.d9e775fe8b24ad357cc6db89@linux-foundation.org> (raw)
In-Reply-To: <20250502103905.3995477-1-max.kellermann@ionos.com>
On Fri, 2 May 2025 12:39:04 +0200 Max Kellermann <max.kellermann@ionos.com> wrote:
> There is /proc/sys/kernel/hung_task_detect_count,
> /sys/kernel/warn_count and /sys/kernel/oops_count but there is no
> userspace-accessible counter for hard/soft lockups.
Documenation/, please?
> Having this is useful for monitoring tools.
Useful how? Use cases? Examples?
A proposal to permanently extend Linux's userspace API requires better
justification than an unsubstantiated assertion, surely?
next prev parent reply other threads:[~2025-05-04 2:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-02 10:39 [PATCH 1/2] kernel/watchdog: add /sys/kernel/{hard,soft}lockup_count Max Kellermann
2025-05-02 10:39 ` [PATCH 2/2] kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count Max Kellermann
2025-05-02 14:39 ` [PATCH 1/2] kernel/watchdog: add /sys/kernel/{hard,soft}lockup_count Doug Anderson
2025-05-02 15:12 ` Max Kellermann
2025-05-04 2:47 ` Andrew Morton [this message]
2025-05-04 6:36 ` Max Kellermann
2025-05-04 6:54 ` Andrew Morton
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