linux kernel book

It was just a day, and I studied how to compile Linux kernel in my spare time. I used to work on Windows platforms and almost never used Linux, so I wanted to have a good time. The platform is the latest Ubuntu 10.04 LTS, and the kernel is also the latest version 2.6.35.2 downloaded. In fact,

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

Arch/x86/include/asm/*.h2. Spin LockAtomic operation can only be used in the case of only one variable in the critical section, in practical application, the situation of the critical section is much more complicated.For complex critical zones, there are several synchronization methods available in the Linux kernel, and spin locks are one of them.The spin lock feature is that when a thread acquires a lock,

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

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 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

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

record when writing or revising a file. Therefore, when data inconsistency occurs, you can examine the log record block directly, and you can quickly identify the problem. Linux EXT3 is a file system that supports logging capabilities. It has also been said that since the disk is much slower than memory, Linux does not immediately update the modified data in memory to disk after modifying the data in me