Operating System: Red Hat Enterprise Server

OS version: Linux 2.6.9-42.0.2.ELsmp #1 SMP Thu Aug 17 18:00:32 EDT 2006 i686 i686 i386 GNU/Linux

Product Name: JVM

Product version: Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)

Hardware platform: HP DL-380. 2CPU Intel Xeon 3.06GHz



Short description :

JVM crashes intermittently when socket calls are made


Full problem description:

The java.net calls made using IPv6.
The JVM cores when a socket call such as getHostName is used.
The core shows this in common - C [libnet.so+0x6596] Java_java_net_Inet6AddressImpl_getHostByAddr+0x220.
This may or may not be related to IPv6 but it shows up in the core files.

Core file and hs_err logs are collected for analysis.
This cannot be produced consistently. In range of over 200 servers, customer has seen 6 JVM crashes since Jan 22.

It is not possible for customer to test with the latest release of jdk 1.5.
And they need our help to root cause the problem.



Error Logs and Core files are at :
====================================

a) From a particular crash :

/net/cores.central/cores/dir33/831192/core.27023.gz
/net/cores.central/cores/dir33/831192/hs_err_pid27023.log

b) Error Logs Received Intially :

/net/cores.central/cores/dir33/831192/hs_err_pid3700.log
/net/cores.central/cores/dir33/831192/hs_err_pid3940.log
/net/cores.central/cores/dir33/831192/hs_err_pid4015.log