python/python-linux-procfs/python-linux-procfs.git - Python classes to extract information from the Linux kernel /proc files. https://git.kernel.org/pub/scm/libs/python/python-linux-procfs/python-linux-procfs.git/ #! /usr/bin/python # -*- python -*-…

Please install the Linux kernel "header" files matching the current kernel 当我启动minilkube时遇到如下错误消息: Minikube setup with driver virtualbox Starting local Kubernetes v1.10.0 cluster... Starting VM... E1010 03:57:24.565157 9896 start.go:174] Error s…

/proc文件系统 - 各种内核信息/proc目录下文件提供了很多不同硬件设备和内核的详细信息.更多详情参见Linux kernel /proc.一般/proc例如: [root@SM155 proc]# cat /proc/cpuinfo processor : vendor_id : GenuineIntel cpu family : model : model name : Intel(R) Pentium(R) Dual CPU E2180 @ .00GHz stepping : cpu…

不少Python新手经常问到学Python到底需不需要学习Linux? Python不是支持Windows和Linux操作系统吗?能在Windows下开发为什么还要学习Linux? 问这样的问题的朋友,可能还没有真正入行Python开发或者没有真正参与公司的一些项目部署,上线过程,对于上面问题,首选答案是肯定的,Python开发可以在Windows下开发,但是Linux学习仍然是必须的.                                                      …

I won’t reply to that post much, because it’s mostly… well, not useful to respond to. But people often talk about the wonders of Open Classes in Ruby. For Python people who aren’t familiar with what that means, you can do: # Somehow acquire SomeClass…

http://blog.csdn.net/blizmax6/article/details/6747601 linux内核调试指南 一些前言 作者前言 知识从哪里来 为什么撰写本文档 为什么需要汇编级调试 ***第一部分:基础知识*** 总纲:内核世界的陷阱 源码阅读的陷阱 代码调试的陷阱 原理理解的陷阱 建立调试环境 发行版的选择和安装 安装交叉编译工具 bin工具集的使用 qemu的使用 initrd.img的原理与制作 x86虚拟调试环境的建立 arm虚拟调试环境的建立 arm开发板调试环…

−Table of Contents Journey to the Center of the Linux Kernel: Traffic Control, Shaping and QoS 1 Introduction 2 Motivation 3 The basics of Traffic Control 3.1 First contact 3.2 Netfilter MARK 3.3 Two classes in a tree 3.4 Connecting the marks to the…

Linux kernel coding style | Linux内核编码风格 This is a short document describing the preferred coding style for the linux kernel. Coding style is very personal, and I won't force my views on anybody, but this is what goes for anything that I have to be ab…

编译linux kernel及制作initrd ( by quqi99 ) 作者:张华  发表于:2013-01-27    ( http://blog.csdn.net/quqi99 ) 运行一个linux系统需要三项内容:   1,kernel, 内核,一些核心的代码块,如进程管理,它要求体积很小.   2,initrd, 进入系统所需预告加载的硬件驱动module的一个最小集.当GRUB加载kernel时,kernel会在内存中将initrd文件mount到rootfs上激活,然后kern…

## Linux kernel memory-faq.txt What is some existing documentation on Linux memory management? Ulrich Drepper (the ex-glibc maintainer) wrote an article series called "What every programmer should know about memory": Part 1: http://lwn.net/Artic…

This tutorial will outline the process to compile your own kernel for Ubuntu. It will demonstrate both the traditional process using ‘make’ and ‘make install’ as well as the Debian method, using ‘make-dpkg’. This is the detailed version of this tutor…

============================================================================== 深入linux kernel内核配置选项 ============================================================================== 如果自己不亲自实践配置的话,你永远也体会不到内核的真实所在. 使用过linux的发行版之一gentoo的话,你应该知道这是一个彻头彻尾的自定义…

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…

目录 . 引言 . Linux 中断的概念 . 中断处理流程 . Linux 中断相关的源代码分析 . Linux 硬件中断 . Linux 软中断 . 中断优先级 . CPU在关中断状态下编程要注意的事项 0. 引言 中断是现代计算机体系结构的重要组成部分,我们回顾历史,现代体系结构的基本输入输出方式有三种 . 程序查询: CPU周期性询问外部设备是否准备就绪.该方式的明显的缺点就是浪费CPU资源,效率低下.但是在特定的场景下这种"程序查询"的方式还有有它的用武之地的 例如,在网络驱…

转自:http://blog.csdn.net/u011461299/article/details/10199989 版权声明:本文为博主原创文章,未经博主允许不得转载. 在驱动程序的设计中,我们可能会用到flush_cache_all将ARM cache的内容刷新到RAM,这是因为ARM Linux中cache一般会被设定为write back的.而通常象DMA是访问不了cache,所以如果我们需要启动DMA将RAM中的内容写到Flash中或LCD framebuffer,那么我们就需要调用…

转自:http://blog.csdn.net/u011461299/article/details/9772215 版权声明:本文为博主原创文章,未经博主允许不得转载. 一般来说,在一个device driver中实现中断,是比较简单的,如上面的RTC的例子.其无非就是: 1.       定义一个IRQ No.如何将Hardware中断信息map到我们的IRQ No就是get_irqnr_and_base要做得事情,get_irqnr_and_base是一个macro,后面会详细分析之.这个…

参考资料: <ARM体系结构与编程> <嵌入式Linux应用开发完全手册> Linux_Memory_Address_Mapping http://www.chinaunix.net/old_jh/4/1021226.html 更多文档参见:http://pan.baidu.com/s/1mg3DbHQ 本文针对arm linux, 从kernel的第一条指令开始分析,一直分析到进入start_kernel()函数. 我们当前以linux-2.6.19内核版本作为范例来分析,本文中…

http://loda.hala01.com/2011/12/linux-kernel-%E6%8E%92%E7%A8%8B%E6%A9%9F%E5%88%B6%E4%BB%8B%E7%B4%B9/ Linux Kernel 排程機制介紹 Linux Kernel 排程機制介紹 hlchou@mail2000.com.tw by loda. 2011/12/2 多核心架構儼然是目前智慧型手機方案的新趨勢,隨著省電與效能上的考量,多核心的架構各家方案也都有所差異.為能讓同一個Linux Kerne…

Linux内核作用: The Linux kernel is the heart of the operating system. It is the layer between the user who works with Linux from a shell environment and the hardware that is available in the computer on which the user is working. The kernel is doing so b…

原文地址: http://www.chineselinuxuniversity.net/articles/48226.shtml 这几天看Linux的内核源码,突然看到init_pid_ns这个结构体变量的赋值特别奇怪. view plainprint? struct pid_namespace init_pid_ns = {     .kref = {         .refcount       = ATOMIC_INIT(2),     },     .pidmap = {       …

https://www.kernel.org/doc/Documentation/kbuild/kconfig-language.txt Introduction ------------ The configuration database is a collection of configuration options organized in a tree structure: +- Code maturity level options | +- Prompt for developme…

墙外通道:http://thinkiii.blogspot.com/2014/02/arm64-linux-kernel-virtual-address-space.html Now let's talk about the Linux kernel virtual address space on 64-bit ARM CPU. You can find information about ARMv8 in ARM official website. http://www.arm.com/pr…

重要结构体 struct socket 结构体 // 普通的 BSD 标准 socket 结构体 // socket_state: socket 状态, 连接?不连接? // type: socket type (%SOCK_STREAM, etc) // flags: socket flags (%SOCK_NOSPACE, etc) // ops: 专用协议的socket的操作 // file: 与socket 有关的指针列表 // sk: 负责协议相关结构体,这样就让这个这个结构体和协议分…

文章目录 关于linux内核中的__attribute__关键字 Linux kernel启动参数 gdt / ldt PCB 关于linux内核中的__attribute__关键字 part I: 原文出处:http://www.jollen.org/blog/2006/10/_gcc___attribute.html gcc 提供一種「定義函數屬性(attribute)」的語法,也就是前一篇日記我們所提到的 __attribute__標籤.__attribute__用來讓我們定義函數的行為,…

现在CPU2核以上比较普遍了,平时用linux上上网可能用不着双核甚至4核,大部分发行版内核都启用了CPU_HOTPLUG,到/sys/devices/system/cpu下可以看到文件夹cpu0.cpu1,除cpu0(这个不能关)每个文件夹下都有一个online文件,往里面写0就可以关闭核心,比如我的T7300,echo '0' >/sys/devices/system/cpu/cpu1/online 就可以关闭第二个核,不影响小型应用.要开启,往里面echo 1就行.这个操作好像要root完…

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, …

In this blog post we'll go over a Linux kernel privilege escalation vulnerability I discovered which enables arbitrary code execution within the kernel. The vulnerability affected all devices based on Qualcomm chipsets (that is, based on the "msm&quo…

http://en.wikipedia.org/wiki/Ingo_Molnár http://zh.wikipedia.org/wiki/英格·蒙內 Ingo Molnár Ingo Molnár, currently employed by Red Hat, is a Hungarian Linux hacker. He is best known for his contributions to the operating system in terms of security and p…

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…

LINUX KERNEL启动参数 在Linux中,给kernel传递参数以控制其行为总共有三种方法: 1.build kernel之时的各个configuration选项. 2.当kernel启动之时,可以参数在kernel被GRUB或LILO等启动程序调用之时传递给kernel. 3.在kernel运行时,修改/proc或/sys目录下的文件. 这里我简单讲的就是第二种方式了,kernel在grub中配置的启动参数. 首先,kernel有哪些参数呢? 在linux的源代码中,有这样的一个文档D…