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SubjectRe: [PATCH v8 2/3] watchdog: wdat_wdt: Stop watchdog when rebooting the system
On Tue, Apr 26, 2022 at 10:53:29PM +0800, Liu Xinpeng wrote:
> Executing reboot command several times on the machine "Dell
> PowerEdge R740", UEFI security detection stopped machine
> with the following prompt:
>
> UEFI0082: The system was reset due to a timeout from the watchdog
> timer. Check the System Event Log (SEL) or crash dumps from
> Operating Sysstem to identify the source that triggered the
> watchdog timer reset. Update the firmware or driver for the
> identified device.
>
> iDRAC has warning event: "The watchdog timer reset the system".
>
> This patch fixes this issue by adding the reboot notifier.
>
> Signed-off-by: Liu Xinpeng <liuxp11@chinatelecom.cn>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
> drivers/watchdog/wdat_wdt.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
> index df0865a61a70..6f36a653767b 100644
> --- a/drivers/watchdog/wdat_wdt.c
> +++ b/drivers/watchdog/wdat_wdt.c
> @@ -462,6 +462,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
> return ret;
>
> watchdog_set_nowayout(&wdat->wdd, nowayout);
> + watchdog_stop_on_reboot(&wdat->wdd);
> return devm_watchdog_register_device(dev, &wdat->wdd);
> }
>
> --
> 2.23.0
>

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