在我们使用git来管理Linux Kernel的时候,在编译的时候会在你的kernel version加上git commit number 有时候还会出现dirty字样,字面意思是内核被污染的意思. 使用“uname -a”查看: root@android:/system/lib/modules # /system/bin/busybox uname -a Linux localhost --g6298bd2-dirty # SMP PREEMPT Mon Jan :: CST armv7l…

Because there are numerous revisions and releases of the Linux kernel and new ones are developed at frequent intervals, it is important to have a system for clearly identifying them. A kernel is a program that constitutes the central core of a comput…

Android Version |API Level |Linux Kernel in AOSP ---------------------------------------------------- 1.5 Cupcake |3 |2.6.27 1.6 Donut |4 |2.6.29 2.0/1 Eclair |5-7 |2.6.29 2.2.x Froyo |8 |2.6.32 2.3.x Gingerbread |9, 10 |2.6.35 3.x.x Honeycomb |11-13…

P30, preemptive  kernel .kernel threading 和Multithreaded application support没太好理解,我想如果设计个多线程的程序来运行运行,恐怕就好理解了.搞清楚了! 在source code里面, arch和include是和硬件相关的代码,arch下面是architecture-specific的文件, include下面放的是内核的所有头文件,其中带有asm前缀的子目录里面是particular architecture的头文件…

The page cache caches pages of files to optimize file I/O. The buffer cache caches disk blocks to optimize block I/O. Page Cache缓存文件内容以优化文件I/O,Buffer Cache缓存磁盘blocks以优化block I/O. 注释:Block 块是用来管理磁盘空间的,而Page 页是针对内存管理,从磁盘读出的数据就缓存在内存页中.当一个块被调入到内存中,它要被存储在…

作者 : 韩曙亮 转载请出名出处 : http://blog.csdn.net/shulianghan/article/details/38636827 一. Linux 内核简介 1. 内核功能简介 (1) 操作系统 和 内核 简介 操作系统 : -- 功能 : 完成基本功能 和 系统管理; -- 组成 : 内核(kernel), 设备驱动程序(driver), 启动引导程序(bootloader), 命令行(shell), 用户界面(UI), 文件系统(filesystem), 管理工具;…

Originally derived from Red Hat Enterprise Linux (RHEL), Oracle Linux (OL) contains minor differences, such as those necessary to differentiate itself e.g. modified /etc/redhat-release and /etc/issue file content, as well as /etc/enterprise-release, …

http://en.wikipedia.org/wiki/Linux_kernel Development model The current development model of the Linux kernel is such that Linus Torvalds makes the releases of new versions, also called the "vanilla" or "mainline" kernels, meaning that…

ANALYSIS AND EXPLOITATION OF A LINUX KERNEL VULNERABILITY (CVE-2016-0728) By Perception Point Research Team Introduction The Perception Point Research team has identified a 0-day local privilege escalation vulnerability in the Linux kernel. While the…

  Compiling custom kernel has its own advantages and disadvantages. However, new Linux user / admin find it difficult to compile Linux kernel. Compiling kernel needs to understand few things and then just type couple of commands. This step by step ho…