Chapter 4 Core File Analysis

Table of Contents

The previous chapter described how to collect necessary information before opening a call to HP Support to get help troubleshooting Java applications. Sometimes it is possible to at least attempt the core file analysis on your own. This chapter walks through an example core file analysis step by step. By studying this example, you will learn some skills needed to analyze your own core file.

HP-UX writes a file containing a core image of a process when certain signals are received. The most common reasons a core file is generated are:

Memory violations
Illegal instructions
Floating-point exceptions
Bus errors
User-generated quit signals
User-requested core generation

Generally, the core image file is named core and is written in the current working directory.

A core file is a dump of the process state at the time of the problem. The file contains sufficient information to determine what the process was doing when it failed. This information includes:

Threads
Register values
Contents of attached data memory regions
Kernel version
Command name

Chapter 4 Core File Analysis

Technical documentation

» Table of Contents

» Glossary

» Index