linux-kernel - Re: [PATCH v2 3/4] watchdog: add sys_info sysctls to dump sys info on system lockup

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Message-ID: <aRdOWgGuVPsiLc4L@pathway.suse.cz>
Date: Fri, 14 Nov 2025 16:44:26 +0100
From: Petr Mladek <pmladek@...e.com>
To: Feng Tang <feng.tang@...ux.alibaba.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Lance Yang <ioworker0@...il.com>, Jonathan Corbet <corbet@....net>,
	paulmck@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/4] watchdog: add sys_info sysctls to dump sys info
 on system lockup

On Thu 2025-11-13 19:10:38, Feng Tang wrote:
> When soft/hard lockup happens, developers may need different kinds of
> system information (call-stacks, memory info, locks, etc.) to help
> debugging.
> 
> Add 'softlockup_sys_info'  and 'hardlockup_sys_info' sysctl knobs to
> take human readable string like "tasks,mem,timers,locks,ftrace,...",
> and when system lockup happens, all requested information will be
> printed out. (refer kernel/sys_info.c for more details).
> 
> Signed-off-by: Feng Tang <feng.tang@...ux.alibaba.com>

Looks good to me. Feel free to use:

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr