From: Guenter Roeck <linux@roeck-us.net>
To: Faruque Ansari <faruque.ansari@oss.qualcomm.com>,
Sebastian Reichel <sre@kernel.org>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Benson Leung <bleung@chromium.org>,
Tzung-Bi Shih <tzungbi@kernel.org>,
Oleksij Rempel <o.rempel@pengutronix.de>,
Srinivas Kandagatla <srini@kernel.org>,
Daniel Lezcano <daniel.lezcano@kernel.org>,
Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-watchdog@vger.kernel.org, linux-arm-msm@vger.kernel.org,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Zhang Rui" <rui.zhang@intel.com>,
"Lukasz Luba" <lukasz.luba@arm.com>,
"Søren Andersen" <san@skov.dk>,
"Guenter Roeck" <groeck@chromium.org>,
"Matti Vaittinen" <mazziesaccount@gmail.com>,
"Ahmad Fatoum" <a.fatoum@pengutronix.de>,
"Andrew Morton" <akpm@linux-foundation.org>,
avaneesh.dwivedi@oss.qualcomm.com,
"Umang Chheda" <umang.chheda@oss.qualcomm.com>
Subject: Re: [PATCH v3 3/3] watchdog: pretimeout: update PSC reason in panic pretimeout governor
Date: Tue, 4 Aug 2026 07:59:35 -0700 [thread overview]
Message-ID: <bf41bb0a-6f2c-443a-a487-164277c2dcfa@roeck-us.net> (raw)
In-Reply-To: <20260804-pscrr-reboot-reason-v3-3-e706dbfc7465@oss.qualcomm.com>
On 8/4/26 02:21, Faruque Ansari wrote:
> Update the PSC reset reason by invoking
> set_psc_reason(PSCR_WATCHDOG_PRETIMEOUT) from the panic governor's
> pretimeout handler before calling panic(), so the reset cause is
> committed to persistent storage before the system goes down.
>
> Signed-off-by: Faruque Ansari <faruque.ansari@oss.qualcomm.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
> ---
> drivers/watchdog/pretimeout_panic.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/watchdog/pretimeout_panic.c b/drivers/watchdog/pretimeout_panic.c
> index 8c3ac674dc45..819487b5e6fe 100644
> --- a/drivers/watchdog/pretimeout_panic.c
> +++ b/drivers/watchdog/pretimeout_panic.c
> @@ -5,6 +5,7 @@
>
> #include <linux/kernel.h>
> #include <linux/module.h>
> +#include <linux/reboot.h>
> #include <linux/watchdog.h>
>
> #include "watchdog_pretimeout.h"
> @@ -17,6 +18,7 @@
> */
> static void pretimeout_panic(struct watchdog_device *wdd)
> {
> + set_psc_reason(PSCR_WATCHDOG_PRETIMEOUT);
> panic("watchdog pretimeout event\n");
> }
>
>
prev parent reply other threads:[~2026-08-04 14:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 9:21 [PATCH v3 0/3] power: reset: pscrr: record reset cause on panic and watchdog pretimeout Faruque Ansari
2026-08-04 9:21 ` [PATCH v3 1/3] power: reset: pscrr: add kernel panic reason tracking Faruque Ansari
2026-08-04 9:21 ` [PATCH v3 2/3] power: reset: pscrr: add watchdog pretimeout " Faruque Ansari
2026-08-04 9:21 ` [PATCH v3 3/3] watchdog: pretimeout: update PSC reason in panic pretimeout governor Faruque Ansari
2026-08-04 14:59 ` Guenter Roeck [this message]
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