From: Liu Xinpeng liuxp11@chinatelecom.cn
stable inclusion from stable-v5.10.122 commit 668c3f9fa2ddc93bab26e5acd7e6f43917c71e7d category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5W6OE
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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@chinatelecom.cn Reviewed-by: Guenter Roeck linux@roeck-us.net Link: https://lore.kernel.org/r/1650984810-6247-3-git-send-email-liuxp11@chinatele... Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Wim Van Sebroeck wim@linux-watchdog.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- 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); }