This aptly named tool is essentially a patch to the kernel code that lets hackers access kernel memory and data structures.
这个恰如其名的工具实质上是内核代码的补丁，它允许高手访问内核内存和数据结构。
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The Linux kernel debugger (KDB) is a patch for the Linux kernel and provides a means of examining kernel memory and data structures while the system is operational.
Because there is a memory leak in the application, Barb knows that she will have to debug the code and deploy a patch to the application running in production.