OS :

/etc/redhat-release
::::::::::::::
Red Hat Enterprise Linux AS release 3 (Taroon)

JDK version:

[root@qt0 atgrun.4217.-server]# /usr/java/j2sdk1.4.2_05/bin/java -server -version
java version "1.4.2_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_05-b02)
Java HotSpot(TM) Server VM (build 1.4.2_05-b02, mixed mode)

test machine : qt0.ireland (dual Xeon processor)

Atg bigapps is hanging on RHEL3.0.
on first occassion, the atg hung after ~4 hrs.
on second occasion , atg hung after ~15hrs.

flags used : -server -Xcomp

doing a gcore on both server and client process show the following backtrace :

(gdb) bt
#0 0xb75ebc32 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0xb75d63aa in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0
#2 0xb75d6764 in pthread_cond_timedwait@GLIBC_2.0 () from /lib/tls/libpthread.so.0
#3 0xb7227f8a in os::Linux::safe_cond_timedwait () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#4 0xb72160cf in Monitor::wait () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#5 0xb72cb7e5 in VMThread::loop () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#6 0xb72cb5ca in VMThread::run () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#7 0xb7229d00 in _start () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#8 0xb75d3dac in start_thread () from /lib/tls/libpthread.so.0
#9 0xb756f9ea in clone () from /lib/tls/libc.so.6


(gdb) bt
#0 0xb75ebc32 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0xb75591ac in sched_yield () from /lib/tls/libc.so.6
#2 0xb7228916 in os::pd_resume_thread () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#3 0xb729e3f0 in Thread::vm_resume () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#4 0xb7271cfe in ThreadSafepointState::examine_state_of_thread ()
   from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#5 0xb7271277 in SafepointSynchronize::begin () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#6 0xb72cb98e in VMThread::loop () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#7 0xb72cb5ca in VMThread::run () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#8 0xb7229d00 in _start () from /usr/java/j2sdk1.4.2_05/jre/lib/i386/server/libjvm.so
#9 0xb75d3dac in start_thread () from /lib/tls/libpthread.so.0
#10 0xb756f9ea in clone () from /lib/tls/libc.so.6


This could be similar to bug 5026838 logged recently.
###@###.### 2004-05-24


update :
ran atg in client mode (142_05b2) on same machine (qt0.ireland)- same hang seen (similar backtrace).
Ran atg on another RHEL box (hino.ireland, quad processor PII) and the tests ran ok for 24 hrs.
Looks like the hang is seen only on the newer machine.

Ran atg in server -Xcomp mode with 1.4.2_04b5 and the tests ran ok for 24hrs on qt0.ireland.
Appears to be a regression. I'm rerunning with 1.4.2_05b1. Can't use the default debug build
due to bug 5016328 on RHEL3.0

###@###.### 2004-05-27


Status :


dual Xeon 1.8GHz, 1GB Quad pII 400Mhz, 2GB
qt0.ireland hino.ireland

1.4.2_04b5
server Pass Pass

1.4.2_05b2
server Fail Pass
client Fail NYT


###@###.### 2004-05-27