From: Tejun Heo <tj@kernel.org>
To: Sangmoon Kim <sangmoon.kim@samsung.com>
Cc: youngjae24.lim@samsung.com, jordan.lim@samsung.com,
myoungjae.kim@samsung.com, Lai Jiangshan <jiangshanlai@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] workqueue: add cmdline parameter workqueue.panic_on_stall
Date: Tue, 6 Aug 2024 10:07:46 -1000 [thread overview]
Message-ID: <ZrKCkpr05sRN28nc@slm.duckdns.org> (raw)
In-Reply-To: <20240806051209.3352066-1-sangmoon.kim@samsung.com>
On Tue, Aug 06, 2024 at 02:12:09PM +0900, Sangmoon Kim wrote:
> When we want to debug the workqueue stall, we can immediately make
> a panic to get the information we want.
>
> In some systems, it may be necessary to quickly reboot the system to
> escape from a workqueue lockup situation. In this case, we can control
> the number of stall detections to generate panic.
>
> workqueue.panic_on_stall sets the number times of the stall to trigger
> panic. 0 disables the panic on stall.
>
> Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Appled to wq/for-6.12. Can you do a follow-up patch to document it in
kernel-parameters?
Thanks.
--
tejun
next prev parent reply other threads:[~2024-08-06 20:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20240806051219epcas1p42de88463d90d6084ccfea538d929465c@epcas1p4.samsung.com>
2024-08-06 5:12 ` [PATCH v2] workqueue: add cmdline parameter workqueue.panic_on_stall Sangmoon Kim
2024-08-06 20:07 ` Tejun Heo [this message]
2024-08-07 1:47 ` Sangmoon Kim
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