linux kernel containers

To say clear Systemd, you have to start with the Linux operating system started speaking. The startup of the Linux operating system starts with the BIOS, then the boot Loader loads into the kernel and initializes the kernel. The final step in kernel initialization is to star

The kernel learning notes, since it is a note to remember the key things, assorted slowly again. Here are a few simple steps to compile the kernel: 1. Go to www.kernel.org download kernel 2. mkdir/usr/src/linux-2.6.37CP 2.6.37.tar.bz2/usr/src/linux-2.6.37 (just out) 3. The

Article Title: How is the Linux kernel module transferred to the kernel ?. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, emb

virtual address, theoretically we can directly read and write the I/O memory resources like the read/write Ram. To ensure the cross-platform portability of the driver, we should use special functions in Linux to access the I/O memory resources, instead of the core virtual address pointer. [MMAP] MMAP is used to map a device, which means that an address in the user space is associated with the device memory. This allows the program to read or write d

the high-performance requirements of the program.If a process uses mmap to map a large data file to the virtual address space of a process, we need to focus on the value of Majflt because the damage to performance compared to Minflt,majflt is fatal, and the time-consuming order of random reads of a disk is several milliseconds, And Minflt only have a lot of time to affect performance.Other Memory request Management algorithm implementationmalloc used in glibc is not the only memory management m

July 26, 2014 kernel preemption and kernel control path designA definition of kernel preemption: If a process is executing kernel functions in the kernel state, a kernel switchover is allowed (that is, the process being replaced i

PS. He Bong Original works reproduced please specify the source "Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-10000290001.mykernelExperimental Guidance (how the operating system works)Use the lab building virtual machine to open the shell and enter the following code 1 CD linuxkernel/linux-3.9.4 2 Qemu-

Kernel module ProgrammingFirst, the preparatory workVirtual machines: VMware Workstation 12Operating system: UbuntuCurrent kernel version: Linux-headers-4.4.0-22-genericIi. Knowledge of kernel modulesA module is a standalone program that can be compiled separately, but not run independently. It is linked to the

First, How does the Linux kernel organize the files in each directory tree and compile them? and build a kernel with specific features as needed? in theLinuxin the kernel, there are two types of files:Makefile,Kconfig. The two files are distributed in the various levels of the

Compile the Linux kernel to solve the running problem of vmwareworkstation6.0 in the new kernel-Linux general technology-Linux programming and kernel information. For more information, see the following. 1. download the latest

instructions in the critical section are executed continuously, and may be executed in the critical section half way, Because the scheduler is preempted or interrupted, the CPU does not continue to execute within the critical zone, which means the execution is interrupted.But that still guarantees the avoidance of competitive conditions, the reason is that if a process outside of the interrupted process is scheduled, the process will have to access the critical section, the lock or semaphore, a

Http://www.ibm.com/developerworks/cn/linux/l-kdb/index.htmlThis article will first introduce some kernel code monitoring and error tracing techniques on the Linux kernel, which vary depending on the required usage environment and usage methods, and then focus on the source-level debugging methods of the three