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Date: Mon, 13 Jun 2022 12:11:34 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Liu Xinpeng <liuxp11@...natelecom.cn>, Guenter Roeck <linux@...ck-us.net>, Wim Van Sebroeck <wim@...ux-watchdog.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.10 134/172] watchdog: wdat_wdt: Stop watchdog when rebooting the system From: Liu Xinpeng <liuxp11@...natelecom.cn> [ Upstream commit 27fdf84510a1374748904db43f6755f912736d92 ] 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@...natelecom.cn> Reviewed-by: Guenter Roeck <linux@...ck-us.net> Link: https://lore.kernel.org/r/1650984810-6247-3-git-send-email-liuxp11@chinatelecom.cn Signed-off-by: Guenter Roeck <linux@...ck-us.net> Signed-off-by: Wim Van Sebroeck <wim@...ux-watchdog.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- 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 3065dd670a18..c60723f5ed99 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); } -- 2.35.1
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