watchdog: wdat_wdt: Stop watchdog when rebooting the system
authorLiu Xinpeng <liuxp11@chinatelecom.cn>
Tue, 26 Apr 2022 14:53:29 +0000 (22:53 +0800)
committerWim Van Sebroeck <wim@linux-watchdog.org>
Sat, 21 May 2022 08:09:30 +0000 (10:09 +0200)
commit27fdf84510a1374748904db43f6755f912736d92
tree7dacec2e540b5b2b8ca327fb4473c6af0204a7bc
parent6d72c7ac9fbe26a77800676507da980436b40b2f
watchdog: wdat_wdt: Stop watchdog when rebooting the system

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>
Link: https://lore.kernel.org/r/1650984810-6247-3-git-send-email-liuxp11@chinatelecom.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
drivers/watchdog/wdat_wdt.c