内核空间

此处提供的page缓冲区在内核空间中。

The page buffer provided here is in kernel space .

探测位置（ProbeLocation）：用户/内核空间中执行跟踪动作的位置。

Probe Location : Location in user / kernel space where tracing action is to be performed .

Linux中用户空间与内核空间的通信实现

Realization of Communication of User Space Data with Kernel Space Data in Linux

步骤三：系统调用write导致从用户空间到内核空间的上下文切换。

Step three : the write system call causes a context switch from user mode to kernel mode .

如果打开这个选项，则会将一个基本过滤表（带有内置的INPUT、FORWARD和OUTPUT链）添加到内核空间。

Turning this option on will add a basic filter table to kernelspace with built-in INPUT , FORWARD , and OUTPUT chains .

Linux内核空间设备驱动程序的开发

Developing Linux kernel space device driver

Linux提供了一组API来在用户空间和内核空间之间移动数据。

Linux provides a set of APIs to move data between user space and kernel space .

子系统内部多线程的设计和实现，及在Linux内核空间中多线程的协作。

Design and implement module internal multi-threaded mode , and collaboration between multi-threads in the Linux kernel space . 5 .

在Linux内核空间实现元数据镜像技术、故障检测技术、IP接管技术和恢复技术，具有对应用程序透明性的特点。

We implement metadata mirroring , failure detecting , IP takeover and recovery in Linux kernel space , which is transparent to the applications .

第二个切换是从JNI层到内核空间。

The second switch is from a JNI layer to a kernel space .

POSIX信号处理在内核空间中完成。

POSIX signal handling is done in kernel space .

最直接的usermode-helperAPI应用程序是从内核空间加载内核模块。

One of the most straightforward applications of the usermode-helper API is loading kernel modules from kernel space .

对每个异常，CPU控制单元也生成一个硬件错误码，并在开始执行处理函数前将其压入内核空间栈中。

For some exceptions , the CPU control unit also generates a hardware error code and pushes it on the Kernel Mode stack before starting the exception handler .

这是因为sleep函数实际上是执行了一次对内核空间的调用，从而将应用程序的执行挂起了，然后有效地暂停执行，并等待内核再次将其唤醒。

This is because the sleep function actually makes a call into kernel space to suspend the application and then effectively halts the execution and waits for the kernel to wake it up again .

然后，选择器把通道和感兴趣的操作复制到内核空间，让内核为这个应用程序执行实际的poll。

The selector then copies the channels and interested operations into the kernel space and let the kernel do the actual polling for the application .

在宿主内核空间运行的coLinux内核驱动程序。

The coLinux kernel driver that operates in the host kernel space .

现在让我们看一看usermode-helperAPI所使用的内核空间。

Let 's now look at some of the places in the kernel where the usermode-helper API is put to use .

开发了此平台上运行在Linux操作系统上的的简单应用程序，图形化应用程序、用户空间驱动程序、内核空间驱动程序以及裸机上的测试程序。

And simple application , graphical application , user space driver and kernel space driver on Linux OS , and test program on bare metal , running on the platform , are all developed .

PPP模块的实现采用模块化，由用户空间的三大子模块和内核空间的一个子模块共同完成。

The implementation of PPP module uses modulation , it can accomplish by the three sub-module of user space and a sub-module of kernel space .

在kernel/kmod.c中可以找到usermode-helperAPI的源代码和API（展示了主要的用作内核空间的内核模块加载器）。

You 'll find the source and API for the usermode-helper API in kernel / kmod . c ( illustrating its primary use as the kernel-space kernel module loader ) .

针对Wine在Linux用户空间间接加载Windows二进制映像文件，在完成第1步工作的情况下，在Linux内核空间中实现了Windows映像文件加载器。

The Windows binary image files are always loaded indirectly by Wine in Linux user space . So , in the circumstances of completing the previous work , a Windows image file loader is realized in the Linux kernel space .

文章在对Linux操作系统下PPPoE服务器软件现有解决方案的效率和限制分析的基础上，提出并实现了一种基于单虚拟设备的内核空间解决方案。

This paper brings forward a new PPPoE server software design solution in Linux OS , based on the analyses of the efficiency and limitation of the current solution .

由于我们刚才写入数据的缓冲区（page）已经在内核空间中了，因此可以直接对其进行操作，并使用sprintf来写入下一个fortune。

Because the buffer that I 'll write to ( page ) is already in kernel space , I can manipulate it directly and use sprintf to write the next fortune .

然后从用户空间、内核空间以及用户空间与内核空间的交互技术三个方面，介绍了基于DS树算法的流分类原型系统的设计和实现方法。

Secondly , it introduces the design and implementation of the DS-Tree algorithm based classification prototype system . The aspects in the design include user space , kernel space and the interaction technique between them .

与传统用户空间透明网关相比较有所不同的是，内核空间透明网关是将IP数据包的处理程序放置在内核中，实现了真正意义上的基于网络层转发数据包，提高了透明网关的性能。

The difference between the traditional user-space gateway and the kernel-space one is that the latter puts the IP packet handling program in the kernel of Linux system , forwards the packets on the network layer in a real way , thus enhancing the gateway performance .

DSF还可以加快测试用例的开发，因为您不必去学习用于用户/内核空间通信的输入输出控制接口。

DSF can also speed test case development , since you aren 't forced to learn the ioctl interface for user / kernel space communication .

之后针对adhoc网络实现方面研究较少的问题，本文在Linux平台上实现了LB-DYMO路由协议，并给出了详细设计过程，包括用户空间模块设计和内核空间模块设计。

After the Ad Hoc networks for research aspects of fewer problems , this article on Linux implements LB-DYMO routing protocol , and gives a detailed design process , including user-space and kernel space module design module design .

本文首先介绍了EPON中交换芯片对VLAN的支持，接着从用户空间、内核空间和芯片驱动三个层面描述了VLAN的设计，从而实现VLAN的配置与动态管理。

First , this paper introduces the ASIC in EPON supporting VLAN , then depicts three aspects of VLAN design : user space , kernel space and chip driver , consequently implements configuration and dynamic management of VLAN .

而且，因为iptrace将检查来自内核空间的完整的数据包，所以其结果可能导致丢弃大量的数据包。

And , because iptrace examines the entire packet from the kernel space , the results can offer lots of dropped packets .

设备驱动每20ms完成一帧探伤波形数据的实时采集，并将数据从内核空间传输到用户空间，完成探伤波形数据的实时采集。

The device driver accomplishes real-time acquisition of a frame ultrasonic wave data every 20ms and then transfers the data from kernel space to user space .