Java Solaris Communities Sun Store Join SDN My Profile Why Join?
 
Bug Database
Bug Detail
Quick Lists
Top 25 Bugs
Top 25 RFE's
Recently Closed Bugs
Printable Page Printable Page


Bug Database
Bug ID: 4970650
Votes 1
Synopsis Tomcat hang with 1.5.0-beta-b31 on Redhat Linux9
Category java:runtime
Reported Against 1.5 , tiger-beta2
Release Fixed
State 11-Closed, Not a Defect, bug
Priority: 4-Low
Related Bugs 5020021 , 5018995
Submit Date 18-DEC-2003
Description
Tomcat hang with 1.5.0-beta-b31 on Redhat Linux9

JDK version
=============
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b31)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0-beta-b31, mixed mode)

Platform
=============
Linux jtg-linux13 2.4.20-8smp #1 SMP i686 i686 i386 GNU/Linux
glibc-2.3.2-27.9.7

Error message
=============
Tomcat hang on  customer  9 in both C1 and C2 modes.

  xxxxx@xxxxx   2003-12-18

We installed glibc-2.3.2-27.9.7 and unset LD_ASSUME_KERNEL.
And the problem starts to occur.

This problem is most likely caused by a race between
pthread_cond_wait() and pthread_cond_signal() on RH-9 with NPTL.

We will set up AS-3 and retest. Will update the bug report with
the status on AS-3 box.

  xxxxx@xxxxx   2003-12-18

The problem is not reproducible on AS-3 box. That proves Hui's theory
that the bug is in  customer  9's kernel.

  xxxxx@xxxxx   2003-12-22
Work Around
N/A
Evaluation
Likely an NPTL or kernel futex bug. Will try RHEL-3.

  xxxxx@xxxxx   2003-12-18

The problem does not happen on RedHat AS3.0. it's not a bug from our (J2SE)
side.

  xxxxx@xxxxx   2004-03-08
Comments
  
  Include a link with my name & email   

Submitted On 07-JAN-2005
hlavac
If the broblem is caused by this:

http://sources.redhat.com/ml/libc-hacker/2003-09/msg00002.html

then it actually may be problem on your side



PLEASE NOTE: JDK6 is formerly known as Project Mustang