Debugging Linux Systems (Digital Short Cut)
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Debugging Linux Systems (Digital Short Cut)

Debugging Linux Systems (Digital Short Cut)


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About the Book

Debugging Linux Systems discusses the main tools available today to debug 2.6 Linux Kernels. We start by exploring the seemingly esoteric operations of the Kernel Debugger (KDB), Kernel GNU DeBugger (KGDB), the plain GNU DeBugger (GDB), and JTAG debuggers. We then investigate Kernel Probes, a feature that lets you intrude into a kernel function and extract debug information or apply a medicated patch. Analyzing a crash dump can yield clues for postmortem analysis of kernel crashes or hangs, so we take a look at Kdump, a serviceability tool that collects a system dump after spawning a new kernel. Profiling points you to code regions that burn more CPU cycles, so we learn to use the OProfile kernel profiler and the gprof application profiler to sense the presence of code bottlenecks. Because tracing provides insight into behavioral problems that manifest during interactions between different code modules, we delve into the Linux Trace Toolkit, a system designed for high-volume trace capture.   The section “Debugging Embedded Linux” takes a tour of the I/O interfaces commonly found on embedded hardware, such as flash memory, serial port, PCMCIA, Secure Digital media, USB, RTC, audio, video, touch screen, and Bluetooth, and provides pointers to debug the associated device drivers. We also pick up some board-level debugging skills with the help of a case study. The section “Debugging Network Throughput” takes you through some device driver design issues and protocol implementation characteristics that can affect the horsepower of your network interface card. We end the shortcut by examining several options available in the kernel configuration menu that can emit valuable debug information.

Table of Contents:
Product Description    3 Kernel Version    4 Book Website    4 Conventions Used    4 Dedication    5 Kernel Debuggers    6 Kernel Probes    25 Kexec and Kdump    41 Profiling    54 Tracing    61 Debugging Embedded Linux    67 Debugging Network Throughput    83 Linux Test Project    86 User Mode Linux    87 Diagnostic Tools    87 Kernel Hacking Config Options    87

About the Author :
Sreekrishnan Venkateswaran has spent more than a decade working in IBM product development laboratories. He has ported Linux to devices ranging from wristwatches and music players to PDAs, VoIP phones, and even pacemaker programmers. He was a Contributing Editor and kernel columnist for Linux Magazine for more than two years.


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Product Details
  • ISBN-13: 9780131380974
  • Publisher: Pearson Education (US)
  • Publisher Imprint: Pearson
  • Language: English
  • ISBN-10: 0131380974
  • Publisher Date: 03 Nov 2009
  • Binding: Digital download
  • No of Pages: 91


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