Fifth Chapter system CallsA system call is an interface that a user process interacts with the kernel. In order to protect the system stable and reliable, avoid the application wanton carried away.5 . 1 communication with the kernelThe system call
How does 1.platform device "automatically" correlate to platform driver?Turn to Linux driver some time, some time ago encountered a problem, in the Linux kernel 3.10 drivers/tty/serial/imx.c, registered driver when the call Platform_driver_register (
Chapter IIIMain content:
Processes and Threads
The life cycle of a process
Creation of processes
Termination of the process
1. Processes and ThreadsProcesses and threads are program runtime State, dynamic, process and
Three layer skin (top) of the system call, user state, kernel state and interruptProcess of user state, kernel state and interruptUser-and kernel-state differentiationKernel state: Code can execute privileged instruction, access any physical address,
The GPL is the GNU General Public License;The Linux operating system and the extensive software associated with it are developed and distributed under the GPL.More than 4G installs 64 bit, otherwise installs 32 bit but will be better;Swap partition
Linux systems have some basic commands that can be well used for server monitoring.For a brief introduction, use Help to view or access relevant information.
Network: Ifconfig,netstat
Disk: DF
Cpu:w
Process: PS
Memory: Free
Follow these steps to deploy successfully:Some specific operations command is not detailed, directly say useful:1, in the/usr/local deployment of two Tomcat,tomcat folder renamed to: Tomcat6-1, tomcat6-22, modify the Linux profile file path/etcAdd
Full name:Opposite of morePurpose: page display of file content, and more similar, but more flexibleformat:less [-[+]aabccdeeffggiijklmmnnqqrrssuuvwwx~] [-B space] [-H lines] [-j line] [-K keyfile] [-{oo} logfile] [-p Pattern] [-P prompt] [-t tag] [-
Transferred from: http://www.th7.cn/system/lin/201311/46743.shtmlObjective
The E2label command, which gets or sets the volume label for the partition corresponding to the ext2, ext3 file system.
Label: A simple indication of a partition.
"Linux kernel Analysis" Fourth Week study summary--three layers of skin that clawed the system callName: Wang Wei No.: 20135116Theoretical Summary section:First section user state, kernel state and interruptOne, the user state, the kernel state and
One, write format:* * * * * commandMinute hour day Month Week commandwhich
Minute: Represents minutes, which can be any integer from 0 to 59.
Hour: Represents the hour, which can be any integer from 0 to 23.
Day: Represents a date, which can
Note: The regular expression is a matching string, and the wildcard is a matching file nameRegular expression rules:* Previous character matches 0 or more times. Match any character except the line break^ matches the beginning of the line. For
Malmqvist + Original works reproduced please specify the source + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000One, the user state, the kernel state and the interrupt processing process1, the user through the
Transferred from: http://www.cnblogs.com/peida/archive/2012/11/02/2750588.htmlThe more command, which functions like cat, the Cat command is the entire contents of the file displayed on the screen from top to bottom. More will be a page-by-page
First, the user state, the kernel statePermission classification--for the system itself more stable, so that the system should not crash. (Not all programmer abbreviation code is very robust!!) )X86 CPU four different execution levels: 0 (Kernel
From today to learn NetEase cloud classroom Monensin Teacher's "Linux kernel Analysis" course, link Address: Http://mooc.study.163.com/course/USTC-1000029000#/info, record course study notes.The first week's content mainly introduces the von Neumann
Install MySQL database in Binary Package and binary mysql database
1.1 install MySQL database in Binary Package
1.1.1 preparations before installation (specifications)
1 [root @ Mysql_server ~] # Mkdir-p/home/zhurui/tools # create a specified
Enables linux (centos) to support Chinese files and folders, and linuxcentos
1. Enable linux to support Chinese Characters
1. Set the Linux env LANG = en_US.UTF-8;
2, local Shell client encoding is also set to UTF-8, so that the files or
Linux boot fix and linux boot fix
A few days ago, my Ubuntu old prompt "Filesystem root" was out of space, so I tried to use win pe to expand the space. As a result, the space could not be extended, instead, the boot .....
So I checked the
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