watchdog: BUG: soft lockup”内核软死锁BUG分析和解决

参考:
https://blog.csdn.net/qq_44281591/article/details/132251894
https://huaweicloud.csdn.net/63560efdd3efff3090b59348.html

修改watchdog_thresh配置文件，增大看门狗的触发阈值，扩大之后就不容易使系统进入软死锁。

echo 30 > /proc/sys/kernel/watchdog_thresh 

查看修改结果：

tailf /proc/sys/kernel/watchdog_thresh
>>>30

临时生效：

# kernel.watchdog_thresh=30
sysctl -w kernel.watchdog_thresh=30

总结

#!/bin/bash
#修改阈值为30，写入文件
echo 30 > /proc/sys/kernel/watchdog_thresh 
#修改阈值为30，临时生效
sysctl -w kernel.watchdog_thresh=30

#修改阈值为30，写入启动文件
grep 'watchdog_thresh' /etc/sysctl.conf
if [ $? -ne 0 ]; then
	echo "kernel.watchdog_thresh=30" >> /etc/sysctl.conf
else
	echo "正常"
fi

参考

https://blog.csdn.net/ayychiguoguo/article/details/122318846
https://blog.csdn.net/qq_44281591/article/details/132251894
https://blog.csdn.net/qq_44281591/article/details/132251894
https://huaweicloud.csdn.net/63560efdd3efff3090b59348.html