Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Troubleshooting Guide

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# Cannot Produce a JVM Thread Dump After Server Crash

## Description

If the Application Server crashes, the server dumps a core file and, by default, restarts with the `-Xrs` flag, which prevents the dump of a JVM thread dump.

## Solution

### To enable a JVM thread dump

##### Steps

1. Comment out the `-Xrs` flag in the `server.xml` file for the Application Server.

2. Kill the server process (`kill -3` on UNIX; Ctrl+Break on Windows).

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