Debugging linux kernel tools and techniques

Introduction to Linux Kernel Debugging focused on error management, tools, and problem resolution.View

Various debugging tools including gdb, kdb, LKCD, and custom instrumentation for effective kernel debugging.View

Understanding system error logs, syslog, and debug levels critical for identifying system issues.View

Strategies for addressing system crashes and hangs using oops/panic data analysis and tools like Magic SysReq.View

Methods for investigating kernel failures using debuggers like Gdb, Kdb, and custom debugging modules.View

Handling critical system failures, capturing complete memory dumps, and using LKCD for analysis.View

Step-by-step analysis of kernel panics and oops messages to identify failing code segments with tools.View

Specific case of a kernel NULL pointer dereference, detailing instruction pointers and call trace.View

Disassembly outputs from ksymoops, connecting memory addresses to kernel instructions for troubleshooting.View

Locating the failing line of code causing crashes, with examples from the objdump and C source code.View

Preparation steps for creating a kernel dump using LKCD techniques, and invoking dumps effectively.View

Utilizing the lcrash tool for live system analysis, including commands for stack traces and reports.View

Analyzing dump output and stack traces to understand system state at the time of kernel panic.View

Detailing information from lcrash command outputs, showing system logs during analysis.View

Information and resources including IBM support and literature, enhancing kernel debugging knowledge.View

Links to extensive documentation on kernel debugging tools and related systems.View

Acknowledging the authors and their relationship to the views expressed in the presentation.View