From: Petr Mladek <pmladek@suse.com>
To: Feng Tang <feng.tang@linux.alibaba.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Lance Yang <ioworker0@gmail.com>,
Jonathan Corbet <corbet@lwn.net>,
paulmck@kernel.org, Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/4] watchdog: add sys_info sysctls to dump sys info on system lockup
Date: Fri, 14 Nov 2025 16:44:26 +0100 [thread overview]
Message-ID: <aRdOWgGuVPsiLc4L@pathway.suse.cz> (raw)
In-Reply-To: <20251113111039.22701-4-feng.tang@linux.alibaba.com>
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@linux.alibaba.com>
Looks good to me. Feel free to use:
Reviewed-by: Petr Mladek <pmladek@suse.com>
Best Regards,
Petr
next prev parent reply other threads:[~2025-11-14 15:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-13 11:10 [PATCH v2 0/4] Enable hung_task and lockup cases to dump system info on demand Feng Tang
2025-11-13 11:10 ` [PATCH v2 1/4] docs: panic: correct some sys_ifo names in sysctl doc Feng Tang
2025-11-13 11:10 ` [PATCH v2 2/4] hung_task: Add hung_task_sys_info sysctl to dump sys info on task-hung Feng Tang
2025-11-14 15:36 ` Petr Mladek
2025-11-16 7:16 ` Feng Tang
2025-11-16 7:58 ` Lance Yang
2025-11-16 9:11 ` Feng Tang
2025-11-16 13:22 ` Lance Yang
2025-11-16 14:13 ` Feng Tang
2025-11-17 17:53 ` Andrew Morton
2025-11-18 2:26 ` Feng Tang
2025-11-18 6:06 ` Lance Yang
2025-11-18 15:20 ` Petr Mladek
2025-11-18 17:57 ` Lance Yang
2025-11-19 12:31 ` Petr Mladek
2025-11-13 11:10 ` [PATCH v2 3/4] watchdog: add sys_info sysctls to dump sys info on system lockup Feng Tang
2025-11-14 15:44 ` Petr Mladek [this message]
2025-11-13 11:10 ` [PATCH v2 4/4] sys_info: add a default kernel sys_info mask Feng Tang
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