Torvalds kept tinkering, and before long he had created a working operating system kernel.

托瓦尔兹不断修补，并且在不久之后，他就创建了一个可运行的操作系统内核。

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Dtrace enables the user to dynamically modify the operating system kernel and user processes to record additional data.

D trace让用户能够动态地修改操作系统内核和用户进程，从而记录额外数据。

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Operating system-level virtualization requires changes to the operating system kernel, but the advantage is native performance.

操作系统级的虚拟化要求对操作系统的内核进行一些修改，但是其优点是可以获得原始性能。

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Compaq, HP, and IBM have inked partnership agreements with all the major distributions, but managing multiple documentation sets, utilities, and installation packages for essentially the same operating system kernel may weed out some distributions over time.

CNN: The big business of Linux

Coverity's founders, four graduate students from Stanford University and their professor, recently grammar-checked the entire Linux 2.6.9 kernel operating system and found a respectably low 950 bugs in 5.5 million lines.

FORBES: Magazine Article

After some investigation, the problem appeared to be in the Linux network file system (NFS) kernel, the piece of the operating system responsible for some basic server functions.

CNN: Linux gaining with mission-critical systems