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first, the kernel timer 1. Basic ConceptsIn some scenarios, we need to do some action after a certain time, but do not want to wait and waste the CPU, this time the timer is a very appropriate mechanism. The timer is used to perform a function at a future point in time to accomplish a specific task. The kernel timer tells the kernel to use specific parameters to
Linux0.11 Kernel anatomy – Kernel architecture ©fanwu "Linux kernel full comment" Download: http://files.cnblogs.com/files/HanBlogs/linux-kernel.pdf (click on the lower right corner to save the PDF after entering it ^_^)A fully available operating system consists mainly of 4 parts: hardware, operating system kernel
I. i386 Linux operating system startup processBiOS power-on self-check --> load the interrupt vector to a memory unit of 1024 bytes --> execute int h soft interrupt vector call, load and start the boot program stored in the hard disk MBR, the final identifier of the MBR with the system disk is 55aah. The MBR boot program loads and starts the boot program stored in the active partition PBR --> BIOS loads the kernel and initrd (memory disk initialized b
Directory: http://www.cnblogs.com/WuCountry/archive/2008/11/15/1333960.html[Do not provide illustrations. You are advised to download the source book from the Internet]5.4. Interaction between devices and the interaction between the kernel device and the kernelNearly all devices (including protocols) interact with the kernel in one of two ways:Almost all devices (including NICS) can interact with the
1. Why should we learn the kernel? Some people want to learn the kernel, while others do not. If you want to engage in system development or driver development in the future, you must learn the kernel. I just got started with the kernel and mainly learned kernel interface fu
centos7.5 Update Kernel to 4.18Docker's minimum requirement for the Linux kernel version is 3.10. Now that the Linux kernel has been released to 4.18, the company-related CentOS 7 kernel needs to be upgraded for better use of Docker and k8s.Download Public key# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
1 kernel Object definition:1.1: Each Kernel object is just a block of memory allocated by the kernel and can only be accessed by that kernel.1.2: the memory block is a data structure whose members are responsible for maintaining various information about the object.Some data members (such as security descriptors, usage
How to patch the Linux kernel -------------------- Author: Jesper juhl,2005 year August Date Last updated: 2006-01-05 Translator: Jeffshia, August 2006 Email: Tshxiayu@126.com One of the frequently asked questions in the Linux kernel mailing list is how to make a patch for the Linux kernel, or, more specifically, There are so many backbones/branches, a patch in
.2.2 Building the required environment for compilation(1) RPM Compilation Directory Creationmkdir -P~/rpmbuild/echo'%_topdir% (echo $HOME)/rpmbuild' > ~/.rpmmacros(2) Some dependent package installations required for compilingYum Install perl-extutils-yuminstall audit-libs-devel binutils-devel elfutils-devel Elfutils-libelf-d
This article applies to CentOS 6.4, CentOS 6.5, and is also estimated for other Linux distributions.1. Preparatory workconfirm Kernel and version information[[emailprotected]~]#uname-r2.6.32-220.el6.x86_64[[emailprotected]~]# cat/etc/centos-releasecentosrelease6.5 (Final) installs the software to install the new kernel, depending on the development environment and the development library #yum grouplist//vie
Recently, I have been studying the Linux kernel. The kernel upgrade process is a learning process before I can carefully study the significance of the kernel, first of all, I have successfully compiled and upgraded from kernel 2.6.31.2 to 2.6.35.7 on Ubuntu. However, during compilation and upgrade on fedora, errors occ
How to quickly customize the binary kernel RPM package in CentOS As the number of Linux servers increases, a dedicated binary installation package must be customized for easy upgrade and management to ensure the consistency of the underlying system kernel versions. RedHat system, of course, is to use rpmbuild for customized management. Today, we will explain how to create a binary rpm package for the
The Linux kernel module provides a simple introduction to the overall architecture of the Linux kernel, which is already large and includes components or many more. How do we include the required parts in the kernel?One way is to compile all the required functions into the Linux kernel. This can cause two problems. One
Some articles have already introduced the android kernel. This series will analyze the android kernel from the perspective of the Linux kernel, hoping to provide useful information for beginners. This chapter briefly introduces the full picture of the android kernel and plays an interesting role. Starting from the next
Before trying kernel development, you need to have a general understanding of the kernel. Main Content: Obtain the kernel source code. The kernel source code is structured and compiled. kernel development features 1. obtain the kernel
Linux Kernel overview, Linux kernel Overview Linux Kernel learning notes. Unix Unix has a history of 40, but computer scientists still regard it as the largest and most outstanding System in the existing operating system. It has become a legend and remains well known after time. In 1973, after the Unix system was rewritten in C language, a large number of Unix-de
Windows Kernel Object, windows Kernel 1. Kernel Object In Windows, Each kernel object is only a memory block, which is allocated by the operating system kernel and can only be accessed by the operating system kernel, applications
Article title: comparison between Linux kernel and traditional Unix kernel. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. All Unix kernels are of the same origin and provide the same API. modern Unix kernels have many design
Linux Kernel Design and Implementation of Reading Notes, Linux Kernel Chapter 3 Process Management 1. fork system calls are returned twice from the kernel: one is returned to the sub-process and one is returned to the parent process. the task_struct structure is allocated by the slab distributor. 2.6 was previously placed at the bottom of the stack of the
1. Check whether the FreeType is installedRpm-qa | grep FreeTypeNo words compiled freetype here download./configure--prefix=/usr/local/freetypeMake && make install, no flower head 2, check libjpeg install Rpm-qa | grep libjpeg No compile libjpeg
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