User-mode Linux (paravirtualization)
User-modeLinux（超虚拟化）
User-mode Linux is another paravirtualization solution that is open source.
User - modeLinux是另外一个超虚拟化解决方案，也是开源的。
User-mode Linux is a way to test new kernels, debug kernels, or even debug user applications.
用户模型Linux是测试新内核、调试新内核或者调试用户应用程序的一种方法。
Cancellation may occur as the result of a specific user-mode request, or during the cleanup of a process which has exited.
取消可能是特定的用户态请求的结果，或者在清理已经退出的进程时进行。
Finally, once configuration is complete, you can invoke the configured user-mode application through a call to call_usermodehelper_exec.
最后，一旦配置完成，就可通过调用call_usermodehelper_exec来调用配置好的用户模式应用程序。
The means that the event happens during applications executing in user mode.
表示在以用户模式执行应用程序期间发生的事件。
When a user program accesses system calls, it does so in kernel mode, not user mode.
当用户程序访问系统调用时，它将在内核模式而不是用户模式下进行。
In user mode, programs have read and write access to the user data in the process private region.
在用户模式中，程序对进程专用区域中的用户数据具有读写访问权限。
Zero copy greatly improves application performance and reduces the number of context switches between kernel and user mode.
零拷贝不仅大大地提高了应用程序的性能，而且还减少了内核与用户模式间的上下文切换。
The return from the call causes another context switch from kernel back to user mode.
该调用的返回引发了内核模式到用户模式的上下文切换(又一次上下文切换)。
Some basic components are available in normal user mode, but you will need root authority to perform many commands.
普通用户模式提供一些基本组件，但许多命令都需要根权限。
Where vanilla kernels support kernel mode and user mode, the KVM introduces a guest mode.
普通内核支持内核模式和用户模式，而KVM则引入了一种客户模式。
The return from the call caused a context switch from kernel back to user mode.
该调用的返回引发了内核模式到用户模式的上下文切换(又一次上下文切换)。
For example, add the s parameter to boot into single user mode.
例如，添加参数s启动到单用户模式。
Regarding system modes, there are two modes that a CPU operates in: kernel mode and user mode.
在系统模式方面，CPU有两种运行模式：内核模式和用户模式。
This is because user mode instructions do not have sufficient privileges to cause the system to crash.
因为用户模式指令没有引起系统崩溃的足够权限。
The BNEP module(net/bluetooth/bnep/) and the user mode pand daemon implement Bluetooth Personal Area Networking (PAN).
BNEP模块（net/bluetooth/bnep/）和用户模式pand 后台进程实现了 Bluetooth个人区域网（PAN）。
Enter enable — Enters super user mode with default password system.
输入enable——用默认口令system进入超级用户模式。
When emulating user mode, it can launch Linux processes compiled for one CPU on another CPU.
在模拟用户模式时，它可以在一个CPU上启动针对另一个CPU编译的Linux进程。
The RFCOMM module and the user mode dund daemon implement Bluetooth dialup networking.
RFCOMM模块和用户模式dund后台进程实现了Bluetooth拨号网络。
Enter exit — Goes back to default super user mode.
输入exit——回到默认超级用户模式。
And the syntax to start it in user mode is.
在用户模式下启动它的语法是。
Reduces kernel mode time and increases user mode time.
减少内核模式时间，增加用户模式时间。
The send socket call causes a context switch from user mode to kernel mode.
send套接字调用引发了从用户模式到内核模式的上下文切换。
Step one: the read system call causes a context switch from user mode to kernel mode.
read() 调用（参见 图 2）引发了一次从用户模式到内核模式的上下文切换。
Step three: the write system call causes a context switch from user mode to kernel mode.
send() 套接字调用引发了从用户模式到内核模式的上下文切换。
The read call causes a context switch (see Figure 2) from user mode to kernel mode.
read调用(参见图2)引发了一次从用户模式到内核模式的上下文切换。
The main difference pointed by Tanenbaum is having the drivers run in user mode conferring higher security
Tanenbaum指出其中的主要区别是令设备驱动运行在用户态能提高安全性
The main difference pointed by Tanenbaum is having the drivers run in user mode conferring higher security
Tanenbaum指出其中的主要区别是令设备驱动运行在用户态能提高安全性
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