Products related to Mode:
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Linux Kernel Development
Linux Kernel Development details the design and implementation of the Linux kernel, presenting the content in a manner that is beneficial to those writing and developing kernel code, as well as to programmers seeking to better understand the operating system and become more efficient and productive in their coding. The book details the major subsystems and features of the Linux kernel, including its design, implementation, and interfaces.It covers the Linux kernel with both a practical and theoretical eye, which should appeal to readers with a variety of interests and needs. The author, a core kernel developer, shares valuable knowledge and experience on the 2.6 Linux kernel.Specific topics covered include process management, scheduling, time management and timers, the system call interface, memory addressing, memory management, the page cache, the VFS, kernel synchronization, portability concerns, and debugging techniques.This book covers the most interesting features of the Linux 2.6 kernel, including the CFS scheduler, preemptive kernel, block I/O layer, and I/O schedulers. The third edition of Linux Kernel Development includes new and updated material throughout the book: An all-new chapter on kernel data structuresDetails on interrupt handlers and bottom halvesExtended coverage of virtual memory and memory allocationTips on debugging the Linux kernelIn-depth coverage of kernel synchronization and lockingUseful insight into submitting kernel patches and working with the Linux kernel community
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Learning eBPF : Programming the Linux Kernel for Enhanced Observability, Networking, and Security
What is eBPF? With this revolutionary technology, you can write custom code that dynamically changes the way the kernel behaves.It's an extraordinary platform for building a whole new generation of security, observability, and networking tools. This practical book is ideal for developers, system administrators, operators, and students who are curious about eBPF and want to know how it works.Author Liz Rice, chief open source officer with cloud native networking and security specialists Isovalent, also provides a foundation for those who want to explore writing eBPF programs themselves. With this book, you will:Learn why eBPF has become so important in the past couple of yearsWrite basic eBPF code, and manipulate eBPF programs and attach them to eventsExplore how eBPF components interact with Linux to dynamically change the operating system's behaviorLearn how tools based on eBPF can instrument applications without changes to the apps or their configurationDiscover how this technology enables new tools for observability, security, and networking
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Learning eBPF: Programming the Linux Kernel for Enhanced Observability, Networking, and Security
Learning eBPF: Programming the Linux Kernel for Enhanced Observability, Networking, and Security
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Understanding the Linux Kernel
In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of systems, you need to delve deep into the heart of the kernel.The kernel handles all interactions between the CPU and the external world, and determines which programs will share processor time, in what order.It manages limited memory so well that hundreds of processes can share the system efficiently, and expertly organizes data transfers so that the CPU isn't kept waiting any longer than necessary for the relatively slow disks.The third edition of Understanding the Linux Kernel takes you on a guided tour of the most significant data structures, algorithms, and programming tricks used in the kernel.Probing beyond superficial features, the authors offer valuable insights to people who want to know how things really work inside their machine. Important Intel-specific features are discussed. Relevant segments of code are dissected line by line.But the book covers more than just the functioning of the code; it explains the theoretical underpinnings of why Linux does things the way it does.This edition of the book covers Version 2.6, which has seen significant changes to nearly every kernel subsystem, particularly in the areas of memory management and block devices.The book focuses on the following topics: * Memory management, including file buffering, process swapping, and Direct memory Access (DMA) * The Virtual Filesystem layer and the Second and Third Extended Filesystems * Process creation and scheduling * Signals, interrupts, and the essential interfaces to device drivers * Timing * Synchronization within the kernel * Interprocess Communication (IPC) * Program execution Understanding the Linux Kernel will acquaint you with all the inner workings of Linux, but it's more than just an academic exercise.You'll learn what conditions bring out Linux's best performance, and you'll see how it meets the challenge of providing good system response during process scheduling, file access, and memory management in a wide variety of environments.This book will help you make the most of your Linux system.
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What is the difference between user mode and kernel mode?
User mode and kernel mode are two different privilege levels in a computer's operating system. User mode is the restricted mode where most applications run, and they have limited access to the computer's hardware and system resources. Kernel mode, on the other hand, is the privileged mode where the operating system and device drivers run, and they have unrestricted access to the computer's hardware and system resources. In kernel mode, the operating system can execute privileged instructions and perform critical tasks, while in user mode, applications are isolated from the critical system functions to ensure stability and security.
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What are the kernel mode and user mode of a processor?
The kernel mode and user mode are two different privilege levels of a processor. In kernel mode, the processor has unrestricted access to the hardware and can execute any instruction. This mode is typically used by the operating system to perform critical tasks such as managing memory and handling hardware interrupts. In user mode, the processor has limited access to the hardware and can only execute a restricted set of instructions. This mode is used by applications and user-level processes to run their code in a protected environment, preventing them from interfering with critical system functions.
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How do I switch from Windows mode to Linux mode?
To switch from Windows mode to Linux mode, you will need to install a Linux distribution on your computer. You can do this by creating a bootable USB drive or DVD with the Linux distribution of your choice and then booting your computer from it. During the installation process, you will have the option to either replace Windows with Linux or dual-boot both operating systems. Once the installation is complete, you can choose to boot into Linux mode instead of Windows mode when starting up your computer. Keep in mind that switching to Linux mode will erase all data on your computer, so be sure to back up any important files before proceeding.
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How can I fix the kernel mode heap corruption?
To fix kernel mode heap corruption, you can try the following steps: 1. Run a memory diagnostic tool to check for any issues with your computer's memory. 2. Update your device drivers to ensure they are compatible with your operating system and hardware. 3. Use the Windows System File Checker tool to scan for and repair any corrupted system files. 4. Check for any recently installed software or hardware that may be causing the issue and uninstall or update it. 5. If the issue persists, consider performing a system restore to revert your computer to a previous state before the heap corruption occurred.
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Linux System Programming
Write software that draws directly on services offered by the Linux kernel and core system libraries.With this comprehensive book, Linux kernel contributor Robert Love provides you with a tutorial on Linux system programming, a reference manual on Linux system calls, and an insider's guide to writing smarter, faster code.Love clearly distinguishes between POSIX standard functions and special services offered only by Linux. With a new chapter on multithreading, this updated and expanded edition provides an in-depth look at Linux from both a theoretical and applied perspective over a wide range of programming topics, including: A Linux kernel, C library, and C compiler overview Basic I/O operations, such as reading from and writing to files Advanced I/O interfaces, memory mappings, and optimization techniques The family of system calls for basic process management Advanced process management, including real-time processes Thread concepts, multithreaded programming, and Pthreads File and directory management Interfaces for allocating memory and optimizing memory access Basic and advanced signal interfaces, and their role on the system Clock management, including POSIX clocks and high-resolution timers
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Mastering Embedded Linux Programming
Harness the power of Linux to create versatile and robust embedded solutionsAbout This Book• Create efficient and secure embedded devices using Linux• Minimize project costs by using open source tools and programs• Explore each component technology in depth, using sample implementations as a guideWho This Book Is ForThis book is ideal for Linux developers and system programmers who are already familiar with embedded systems and who want to know how to create best-in-class devices.A basic understanding of C programming and experience with systems programming is needed. What You Will Learn• Understand the role of the Linux kernel and select an appropriate role for your application• Use Buildroot and Yocto to create embedded Linux systems quickly and efficiently• Create customized bootloaders using U-Boot• Employ perf and ftrace to identify performance bottlenecks• Understand device trees and make changes to accommodate new hardware on your device• Write applications that interact with Linux device drivers• Design and write multi-threaded applications using POSIX threads• Measure real-time latencies and tune the Linux kernel to minimize themIn DetailMastering Embedded Linux Programming takes you through the product cycle and gives you an in-depth description of the components and options that are available at each stage.You will begin by learning about toolchains, bootloaders, the Linux kernel, and how to configure a root filesystem to create a basic working device.You will then learn how to use the two most commonly used build systems, Buildroot and Yocto, to speed up and simplify the development process.Building on this solid base, the next section considers how to make best use of raw NAND/NOR flash memory and managed flash eMMC chips, including mechanisms for increasing the lifetime of the devices and to perform reliable in-field updates.Next, you need to consider what techniques are best suited to writing applications for your device.We will then see how functions are split between processes and the usage of POSIX threads, which have a big impact on the responsiveness and performance of the final device The closing sections look at the techniques available to developers for profiling and tracing applications and kernel code using perf and ftrace. Style and approach This book is an easy-to-follow and pragmatic guide consisting of an in-depth analysis of the implementation of embedded devices.Each topic has a logical approach to it; this coupled with hints and best practices helps you understand embedded Linux better.
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Which distro do you use, Linux users?
As an AI, I do not have personal preferences or the ability to use operating systems. However, Linux users often choose their distribution based on their specific needs and preferences. Some popular distributions include Ubuntu for its user-friendly interface, Fedora for its focus on the latest technologies, and Debian for its stability and reliability. Ultimately, the choice of distribution depends on the user's requirements and level of expertise.
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How do I activate tablet mode on Linux?
To activate tablet mode on Linux, you can use the GNOME desktop environment which has built-in support for tablet mode. You can enable tablet mode by going to the Settings menu, selecting Devices, and then enabling the "Tablet mode" option. This will optimize the interface for touch input and make it more suitable for tablet use. Additionally, you can also use third-party tools or extensions to further customize the tablet mode experience on Linux.
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Which Linux WLAN PCIe card supports the AP mode?
One popular Linux WLAN PCIe card that supports the AP (Access Point) mode is the TP-Link TL-WN881ND. This card is known for its compatibility with Linux operating systems and its ability to create a wireless access point. It offers reliable performance and is a good choice for users looking to set up a wireless network using their Linux system.
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Does the adapter support monitor mode in Kali Linux?
Yes, the adapter supports monitor mode in Kali Linux. Monitor mode allows the adapter to capture and analyze wireless network traffic, making it a valuable tool for network security and troubleshooting. With the adapter's support for monitor mode, users can perform tasks such as packet sniffing, network monitoring, and wireless penetration testing in Kali Linux.
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