Fix (APAR):  PQ96910

Status:  Fix

Release:  5.1.1

Operating System:  Linux Intel

Supersedes Fixes:  PQ97449

CMVC Defect:  PQ96910

Byte size of APAR:  108642411

Date: 2004-12-10

Abstract:  NATIVE THREADS HANG IN _LIBTHREADHARDSUSPEND

Description/symptom of problem:  Java does not handle threads of type native.This native thread  
 is the one which is hanging.This happens because when _hpiThreadHardSuspend is called over  
 the threads , since the native thread is not handled by JVM, it remains in suspension state 
 and hence does not receive the exit status of the child process and the wait system blocks 
 for ever.       

Directions to apply fix:  NOTE:  YOU MUST FIRST DOWNLOAD THE UPDATE INSTALLER TOOL IN ORDER TO INSTALL A FIX.
       The Fix Installer can be downloaded from the following link:
       http://www-3.ibm.com/software/webservers/appserv/support/index.html

1) Create temporary "fix" directory to store the jar file:
             UNIX: /tmp/WebSphere/fix
          Windows: c:\temp\WebSphere\fix

2) Copy jar file to the directory

3) Shutdown WebSphere

4) Follow the Fix installation instructions that are packaged with the Fix Installer on how to install the Fix.

5) Restart WebSphere

6) The temp directory may be removed.

Directions to remove fix:  NOTE:  FIXES MUST BE REMOVED IN THE ORDER THEY WERE APPLIED.  DO NOT REMOVE A FIX UNLESS
     ALL FIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED.  YOU MAY REAPPLY ANY REMOVED FIX.

Example:  If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be
          removed, fix3 must be removed first, fix2 removed, and fix3 re-applied.


1) Shutdown WebSphere

2) Follow the instructions that are packaged with the Fix Installer on how to uninstall the Fix.

3) Restart WebSphere

Directions to re-apply fix:  1) Shutdown WebSphere

2) Follow the Fix instructions that are packaged with the Fix Installer on how to uninstall and reinstall the Fix.

3) Restart WebSphere

Additional Information: