Unable to handle kernel NULL pointer dereference at virtual address 00000000问题的解决
2018-04-14 16:11
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今天在编译好内核模块后,安装内核模块memdev.ko的时候,出现了Unable to handle kernel NULL pointer dereference at virtual address 00000000等如图所示的问题:
在百度和google找了很多答案,明显就是跟指针有关系。。。访问了空指针什么的。。。
可是代码也有一些怎么找呢??
于是我想了一个办法,加入打印语句帮助我知道到底哪个函数出了问题!
果然,一下就找到了,如图:
于是,问题就迎刃而解了。。。
启发链接:
http://book.51cto.com/art/201112/308323.htm
http://blog.sina.com.cn/s/blog_4ab2ba570100y7fk.html
在百度和google找了很多答案,明显就是跟指针有关系。。。访问了空指针什么的。。。
可是代码也有一些怎么找呢??
于是我想了一个办法,加入打印语句帮助我知道到底哪个函数出了问题!
果然,一下就找到了,如图:
于是,问题就迎刃而解了。。。
启发链接:
http://book.51cto.com/art/201112/308323.htm
http://blog.sina.com.cn/s/blog_4ab2ba570100y7fk.html
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