linux-kernel - Re: [PATCH 1/2] kernel/watchdog: add /sys/kernel/{hard,soft}lockup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250503194706.d9e775fe8b24ad357cc6db89@linux-foundation.org>
Date: Sat, 3 May 2025 19:47:06 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Max Kellermann <max.kellermann@...os.com>
Cc: song@...nel.org, joel.granados@...nel.org, dianders@...omium.org,
 cminyard@...sta.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] kernel/watchdog: add
 /sys/kernel/{hard,soft}lockup_count

On Fri,  2 May 2025 12:39:04 +0200 Max Kellermann <max.kellermann@...os.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?