Jboss hangs at Core system initialized

[asifiqbal]

I cannot start jboss. I downloaded the jboss-4.2.1.GA.zip on my Sun Fire X4100, 8G ram and 2 2.4Ghz Dual Core AMD Opteron.

I am running sol 10 x86 release 6/06. Java 1.5.

Here is where it get stuck

=========================================================================

JBoss Bootstrap Environment

JBOSS_HOME: /opt/jboss-4.2.1.GA

JAVA: java

JAVA_OPTS: -Dprogram.name=run.sh -server -Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000

CLASSPATH: /opt/jboss-4.2.1.GA/bin/run.jar

=========================================================================

17:11:21,316 INFO [Server] Starting JBoss (MX MicroKernel)...
17:11:21,317 INFO [Server] Release ID: JBoss [Trinity] 4.2.1.GA (build: SVNTag=JBoss_4_2_1_GA date=200707131605)
17:11:21,327 INFO [Server] Home Dir: /opt/jboss-4.2.1.GA
17:11:21,327 INFO [Server] Home URL: file:/opt/jboss-4.2.1.GA/
17:11:21,328 INFO [Server] Patch URL: null
17:11:21,328 INFO [Server] Server Name: default
17:11:21,328 INFO [Server] Server Home Dir: /opt/jboss-4.2.1.GA/server/default
17:11:21,328 INFO [Server] Server Home URL: file:/opt/jboss-4.2.1.GA/server/default/
17:11:21,329 INFO [Server] Server Log Dir: /opt/jboss-4.2.1.GA/server/default/log
17:11:21,329 INFO [Server] Server Temp Dir: /opt/jboss-4.2.1.GA/server/default/tmp
17:11:21,329 INFO [Server] Root Deployment Filename: jboss-service.xml
17:11:21,625 INFO [ServerInfo] Java version: 1.5.0_11,Sun Microsystems Inc.
17:11:21,625 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_11-b03,Sun Microsystems Inc.
17:11:21,625 INFO [ServerInfo] OS-System: SunOS 5.10,x86
17:11:22,001 INFO [Server] Core system initialized

Any way to start in DEBUG mode to see why/where it gets stuck?

I am running the exact same code on another sol 10 x86 6/06 on Ultra 20 and it starts just fine

[peterj]

Take a thread dump to see where it is hanging. My guess is that it is waiting for some network response. Debug messages show up in the server/default/log directory.

[asifiqbal]

How do I do a thread dump?

Here are the last few lines of the boot.log


18:01:12,254 DEBUG [ServiceController] starting service jboss.system:service=ServiceDeployer
18:01:12,254 DEBUG [SARDeployer] Starting jboss.system:service=ServiceDeployer
18:01:12,254 DEBUG [MainDeployer] Adding deployer: org.jboss.deployment.SARDeployer@1a116c9
18:01:12,263 DEBUG [SARDeployer] Started jboss.system:service=ServiceDeployer
18:01:12,264 DEBUG [ServiceController] Starting dependent components for: jboss.system:service=ServiceDeployer dependent components: []
18:01:12,264 INFO [Server] Core system initialized
18:01:12,279 DEBUG [MainDeployer] Starting deployment of package: file:/opt/jboss-4.2.1.GA/server/default/conf/jboss-service.xml
18:01:12,279 DEBUG [MainDeployer] Starting deployment (init step) of package at: file:/opt/jboss-4.2.1.GA/server/default/conf/jboss-service.xml
18:01:12,280 DEBUG [MainDeployer] Copying file:/opt/jboss-4.2.1.GA/server/default/conf/jboss-service.xml -> /opt/jboss-4.2.1.GA/server/default/tmp/deploy/tmp7537jboss-service.xml
18:01:12,292 DEBUG [MainDeployer] using deployer org.jboss.deployment.SARDeployer@1a116c9

[asifiqbal]

Here are all the threads

pstack 18836
18836: /usr/jdk/latest/bin/java -Xincgc -Dprogram.name=run.sh -server -Xms128
----------------- lwp# 1 / thread# 1 --------------------
fef30d87 lwp_wait (2, 8046e70)
fef2cfd2 _thrp_join (2, 0, 8046ec0, 1) + 5a
fef2d114 thr_join (2, 0, 8046ec0) + 20
08058a47 ContinueInNewThread (8052260, 50000, 0, 8047768, 8047720) + 4f
08051f59 main (0, 806b3d4, 804781c) + aa1
0805142a _start (c, 80478f8, 8047911, 8047919, 804792f, 8047937) + 7a
----------------- lwp# 2 / thread# 2 --------------------
fef30e27 lwp_cond_wait (806f498, 806f480, 0, 0)
fec4aaad __1cHMonitorEwait6Mbl_b_ (806f428, 0, 0) + 2c1
fecbcde4 __1cHThreadsKdestroy_vm6F_b_ (0, 0, 806a79c, 0, 10006, fed70db9) + 7c
feb1153a jni_DestroyJavaVM (fee3a3b8) + 12a
0805324c JavaMain (8047768) + fec
fef2fd36 _thr_setup (fef72400) + 4e
fef30020 _lwp_start (fef72400, 0, 0, fe59bff8, fef30020, fef72400)
----------------- lwp# 3 / thread# 3 --------------------
fef30e27 lwp_cond_wait (8073320, 8073308, 0, 0)
fec4ac56 __1cHMonitorEwait6Mbl_b_ (80732b0, 1, 0) + 46a
fecf5753 __1cKGangWorkerEloop6M_v_ (8073400) + 7f
fecf569b __1cKGangWorkerDrun6M_v_ (8073400) + 27
fec54a5e java_start (8073400) + ee
fef2fd36 _thr_setup (fb2e0000) + 4e
fef30020 _lwp_start (fb2e0000, 0, 0, fb33bff8, fef30020, fb2e0000)
----------------- lwp# 4 / thread# 4 --------------------
fef30e27 lwp_cond_wait (8073320, 8073308, 0, 0)
fec4ac56 __1cHMonitorEwait6Mbl_b_ (80732b0, 1, 0) + 46a
fecf5753 __1cKGangWorkerEloop6M_v_ (8074400) + 7f
fecf569b __1cKGangWorkerDrun6M_v_ (8074400) + 27
fec54a5e java_start (8074400) + ee
fef2fd36 _thr_setup (fb2e0400) + 4e
fef30020 _lwp_start (fb2e0400, 0, 0, fb2ddff8, fef30020, fb2e0400)
----------------- lwp# 5 / thread# 5 --------------------
fef30e27 lwp_cond_wait (8073320, 8073308, 0, 0)
fec4ac56 __1cHMonitorEwait6Mbl_b_ (80732b0, 1, 0) + 46a
fecf5753 __1cKGangWorkerEloop6M_v_ (8075c00) + 7f
fecf569b __1cKGangWorkerDrun6M_v_ (8075c00) + 27
fec54a5e java_start (8075c00) + ee
fef2fd36 _thr_setup (fb2e0800) + 4e
fef30020 _lwp_start (fb2e0800, 0, 0, fb29bff8, fef30020, fb2e0800)
----------------- lwp# 6 / thread# 6 --------------------
fef30e27 lwp_cond_wait (8073320, 8073308, 0, 0)
fec4ac56 __1cHMonitorEwait6Mbl_b_ (80732b0, 1, 0) + 46a
fecf5753 __1cKGangWorkerEloop6M_v_ (8076800) + 7f
fecf569b __1cKGangWorkerDrun6M_v_ (8076800) + 27
fec54a5e java_start (8076800) + ee
fef2fd36 _thr_setup (fb2e0c00) + 4e
fef30020 _lwp_start (fb2e0c00, 0, 0, fb259ff8, fef30020, fb2e0c00)
----------------- lwp# 7 / thread# 7 --------------------
fef30e27 lwp_cond_wait (806d2c8, 806d2b0, 0, 0)
fec4ac56 __1cHMonitorEwait6Mbl_b_ (806d258, 1, 0) + 46a
fea99c29 __1cZConcurrentMarkSweepThreadJicms_wait6M_v_ (813cc00) + d9
fea99975 __1cZConcurrentMarkSweepThreadUsleepBeforeNextCycle6M_v_ (813cc00) + 79
fea9941b __1cZConcurrentMarkSweepThreadDrun6M_v_ (813cc00) + 1ff
fec54a5e java_start (813cc00) + ee
fef2fd36 _thr_setup (fb2e1000) + 4e
fef30020 _lwp_start (fb2e1000, 0, 0, d6f8cff8, fef30020, fb2e1000)
----------------- lwp# 8 / thread# 8 --------------------
fef30e27 lwp_cond_wait (806f528, 806f510, d6f4ad58, 0)
fef1de3f _lwp_cond_timedwait (806f528, 806f510, d6f4ad88) + 35
fec4ac34 __1cHMonitorEwait6Mbl_b_ (806f4b8, 1, 3e8) + 448
fe9b5f5b __1cIVMThreadEloop6M_v_ (8214000) + 103
fe9b6a40 __1cIVMThreadDrun6M_v_ (8214000) + 88
fec54a5e java_start (8214000) + ee
fef2fd36 _thr_setup (fb2e1400) + 4e
fef30020 _lwp_start (fb2e1400, 0, 0, d6f4aff8, fef30020, fb2e1400)
----------------- lwp# 9 / thread# 9 --------------------
fef30e27 lwp_cond_wait (8216a40, 8216a28, 0, 0)
fec58859 __1cCosNPlatformEventEpark6M_v_ (82169f8) + a9
fecaf081 __1cNObjectMonitorEwait6MxbpnGThread__v_ (8217db0, 0, 0, 1, 8216400) + 2fd
fe94b267 __1cSObjectSynchronizerEwait6FnGHandle_xpnGThread__v_ (81cf5ac, 0, 0, 8216400, 191) + df
fe94af98 JVM_MonitorWait (82164ec, d6f08ab0, 0, 0, 7, b2) + 218
fb40a598 ???????? (0, fb408219, 0, 0, d7200a40, d6f08ab4)
fb402f0d ???????? (d7200a40, 1, d7200a40, d6f08ae0, f728b522, d6f08b20)
fb402f0d ???????? (0, 0, d7200a40, 0, d7200a48, 8216400)
fb40023e ???????? (d6f08b70, d6f08dc8, a, f728b578, fb409320, d6f08cd8)
fe8d1d97 __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (d6f08dc4, d6f08c48, d6f08cd4, 8216400) + 1a3
fe8d203f __1cCosUos_exception_wrapper6FpFpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v2468_v_ (fe8d1bf4, d6f08dc4, d6f08c48, d6f08cd4, 8216400) + 27
fe8d2077 __1cJJavaCallsEcall6FpnJJavaValue_nMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (d6f08dc4, 81cf5a8, d6f08cd4, 8216400) + 2f
fe94cec1 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_nMsymbolHandle_4pnRJavaCallArguments_pnGThread__v_ (d6f08dc4, 81cf59c, fee4fba8, fee4fc88, d6f08cd4, 8216400) + c1
fe95551a __1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHandle_5pnGThread__v_ (d6f08dc4, 81cf598, 81cf59c, fee4fba8, fee4fc88, 8216400) + 7e
fe96764e __1cMthread_entry6FpnKJavaThread_pnGThread__v_ (8216400, 8216400) + d2
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (8216400) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (8216400) + 1b0
fec54a5e java_start (8216400) + ee
fef2fd36 _thr_setup (fb2e1800) + 4e
fef30020 _lwp_start (fb2e1800, 0, 0, d6f08ff8, fef30020, fb2e1800)
----------------- lwp# 10 / thread# 10 --------------------
fef30e27 lwp_cond_wait (8217ba8, 8217b90, 0, 0)
fec58859 __1cCosNPlatformEventEpark6M_v_ (8217b60) + a9
fecaf081 __1cNObjectMonitorEwait6MxbpnGThread__v_ (8217e14, 0, 0, 1, 8217000) + 2fd
fe94b267 __1cSObjectSynchronizerEwait6FnGHandle_xpnGThread__v_ (821771c, 0, 0, 8217000, 191) + df
fe94af98 JVM_MonitorWait (82170ec, d6eb69fc, 0, 0, d6eb6a70, d6eb69c4) + 218
fb40a598 ???????? (0, fb408219, 0, 0, d7200b40, 1)
fb402f0d ???????? (0, 0, d7200b40, 0, 0, d7200b28)
fb402da7 ???????? (d7200b28, d6eb6a74, f728be7f, d6eb6aa0, f728c120, 0)
fb402da7 ???????? (0, d7200b50, 8217000, 8217718, 1f80, fee06000)
fb40023e ???????? (d6eb6af0, d6eb6d48, a, f728bea0, fb409320, d6eb6c58)
fe8d1d97 __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (d6eb6d44, d6eb6bc8, d6eb6c54, 8217000) + 1a3
fe8d203f __1cCosUos_exception_wrapper6FpFpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v2468_v_ (fe8d1bf4, d6eb6d44, d6eb6bc8, d6eb6c54, 8217000) + 27
fe8d2077 __1cJJavaCallsEcall6FpnJJavaValue_nMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (d6eb6d44, 8217718, d6eb6c54, 8217000) + 2f
fe94cec1 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_nMsymbolHandle_4pnRJavaCallArguments_pnGThread__v_ (d6eb6d44, 821770c, fee4fba8, fee4fc88, d6eb6c54, 8217000) + c1
fe95551a __1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHandle_5pnGThread__v_ (d6eb6d44, 8217708, 821770c, fee4fba8, fee4fc88, 8217000) + 7e
fe96764e __1cMthread_entry6FpnKJavaThread_pnGThread__v_ (8217000, 8217000) + d2
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (8217000) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (8217000) + 1b0
fec54a5e java_start (8217000) + ee
fef2fd36 _thr_setup (fb2e1c00) + 4e
fef30020 _lwp_start (fb2e1c00, 0, 0, d6eb6ff8, fef30020, fb2e1c00)
----------------- lwp# 11 / thread# 11 --------------------
fef30e27 lwp_cond_wait (822d3f8, 822d3e0, 0, 0)
fec4aaad __1cHMonitorEwait6Mbl_b_ (822c9a8, 0, 0) + 2c1
fea8886b __1cVSurrogateLockerThreadEloop6M_v_ (822c800) + 5f
fea8849b __1cI_sltLoop6FpnKJavaThread_pnGThread__v_ (822c800, 822c800) + 1b
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (822c800) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (822c800) + 1b0
fec54a5e java_start (822c800) + ee
fef2fd36 _thr_setup (fb2e2000) + 4e
fef30020 _lwp_start (fb2e2000, 0, 0, d5c7fff8, fef30020, fb2e2000)
----------------- lwp# 12 / thread# 12 --------------------
fef3007b lwp_park (0, 0, 0)
fef260ed sema_wait (fee4c7f0) + d
fec56065 __1cVcheck_pending_signals6Fb_i_ (1) + 17d
fe9ed3f9 __1cCosLsignal_wait6F_i_ (d57fdc88, 822d800, fee06000, 0, 0, 0) + d
fe9ec86e __1cTsignal_thread_entry6FpnKJavaThread_pnGThread__v_ (822d800, 822d800) + 2e
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (822d800) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (822d800) + 1b0
fec54a5e java_start (822d800) + ee
fef2fd36 _thr_setup (fb2e2400) + 4e
fef30020 _lwp_start (fb2e2400, 0, 0, d57fdff8, fef30020, fb2e2400)
----------------- lwp# 13 / thread# 13 --------------------
fef30e27 lwp_cond_wait (806feb8, 806fea0, 0, 0)
fec4aaad __1cHMonitorEwait6Mbl_b_ (806fe48, 0, 0) + 2c1
fe93198a __1cMCompileQdDueueDget6M_pnLCompileTask__ (8226138) + 3e
fe99ad72 __1cNCompileBrokerUcompiler_thread_loop6F_v_ (fee06000, 98, d57abc48, fe9639c4, 822e800, 822e800) + 1d2
fe99cd88 __1cVcompiler_thread_entry6FpnKJavaThread_pnGThread__v_ (822e800, 822e800) + 18
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (822e800) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (822e800) + 1b0
fec54a5e java_start (822e800) + ee
fef2fd36 _thr_setup (fb2e2800) + 4e
fef30020 _lwp_start (fb2e2800, 0, 0, d57abff8, fef30020, fb2e2800)
----------------- lwp# 14 / thread# 14 --------------------
fef30e27 lwp_cond_wait (806feb8, 806fea0, 0, 0)
fec4aaad __1cHMonitorEwait6Mbl_b_ (806fe48, 0, 0) + 2c1
fe93198a __1cMCompileQdDueueDget6M_pnLCompileTask__ (8226138) + 3e
fe99ad72 __1cNCompileBrokerUcompiler_thread_loop6F_v_ (fee06000, 98, d5769bc8, fe9639c4, 822fc00, 822fc00) + 1d2
fe99cd88 __1cVcompiler_thread_entry6FpnKJavaThread_pnGThread__v_ (822fc00, 822fc00) + 18
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (822fc00) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (822fc00) + 1b0
fec54a5e java_start (822fc00) + ee
fef2fd36 _thr_setup (fb2e2c00) + 4e
fef30020 _lwp_start (fb2e2c00, 0, 0, d5769ff8, fef30020, fb2e2c00)
----------------- lwp# 15 / thread# 15 --------------------
fef30e27 lwp_cond_wait (806ec58, 806ec40, 0, 0)
fec4ac56 __1cHMonitorEwait6Mbl_b_ (806ebe8, 1, 0) + 46a
fe9e97a9 __1cRLowMemoryDetectorbGlow_memory_detector_thread_entry6FpnKJavaThread_pnGThread__v_ (8231800, 8231800) + 111
fe9639c4 __1cKJavaThreadRthread_main_inner6M_v_ (8231800) + 4c
fe963970 __1cKJavaThreadDrun6M_v_ (8231800) + 1b0
fec54a5e java_start (8231800) + ee
fef2fd36 _thr_setup (fb2e3000) + 4e
fef30020 _lwp_start (fb2e3000, 0, 0, d5727ff8, fef30020, fb2e3000)
----------------- lwp# 16 / thread# 16 --------------------
fef30a57 pollsys (0, 0, d56d5df0, 0)
feeda812 poll (0, 0, 32) + 52
fec5709c __1cIos_sleep6Fxb_i_ (32, 0, 0, 8233800) + 18c
fec573bd __1cCosFsleep6FpnGThread_xb_i_ (8233800, 32, 0, 0, fe9bc30a) + 1a5
fe9bc31b __1cNWatcherThreadDrun6M_v_ (8233800) + bb
fec54a5e java_start (8233800) + ee
fef2fd36 _thr_setup (fb2e3400) + 4e
fef30020 _lwp_start (fb2e3400, 0, 0, d56d5ff8, fef30020, fb2e3400)
----------------- lwp# 17 / thread# 17 --------------------
fb4707f5 ???????? ()

[asifiqbal]

Here is the backtrace of the hang process. Not sure which thread it belongs to

mdb core.18836
Loading modules: [ libc.so.1 libuutil.so.1 ld.so.1 ]
> ::stack
libc.so.1`__lwp_wait+7(2, 8046e70)
libc.so.1`_thrp_join+0x5a(2, 0, 8046ec0, 1)
libc.so.1`thr_join+0x20(2, 0, 8046ec0)
ContinueInNewThread+0x4f(8052260, 50000, 0, 8047768, 8047720)
main+0xaa1(0, 806b3d4, 804781c)
_start+0x7a(c, 80478f8, 8047911, 8047919, 804792f, 8047937)

[dimitris]

We are interested in Java threads, not system threads:

http://wiki.jboss.org/wiki/Wiki.jsp?page=StackTrace

[asifiqbal]

It does not respond to QUIT signal. Actually the only signal it responds to is KILL signal. It ignores all other signals aparently.

(root)@server:~$ /usr/jdk/jdk1.6.0_02/bin/java -Dprogram.name=run.sh -server -Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djava.endorsed.dirs=/opt/jboss-4.2.1.GA/lib/endorsed -classpath /opt/jboss-4.2.1.GA/bin/run.jar org.jboss.Main > jboss.trace

(root)@server:~$ ps -ef | grep java
root 24903 22629 0 19:56:15 pts/6 0:00 grep java
root 24706 24609 0 19:54:53 pts/4 0:01 /usr/jdk/jdk1.6.0_02/bin/java -Dprogram.name=run.sh -server -Xms128m -Xmx512m -

(root)@server:~$ kill -QUIT 24706

(root)@server:~$ kill -3 24706

(root)@server:~$ tail -f jboss.trace
19:54:53,816 INFO [Server] Server Name: default
19:54:53,817 INFO [Server] Server Home Dir: /opt/jboss-4.2.1.GA/server/default
19:54:53,817 INFO [Server] Server Home URL: file:/opt/jboss-4.2.1.GA/server/default/
19:54:53,817 INFO [Server] Server Log Dir: /opt/jboss-4.2.1.GA/server/default/log
19:54:53,817 INFO [Server] Server Temp Dir: /opt/jboss-4.2.1.GA/server/default/tmp
19:54:53,818 INFO [Server] Root Deployment Filename: jboss-service.xml
19:54:54,214 INFO [ServerInfo] Java version: 1.6.0_02,Sun Microsystems Inc.
19:54:54,214 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.6.0_02-b05,Sun Microsystems Inc.
19:54:54,214 INFO [ServerInfo] OS-System: SunOS 5.10,x86
19:54:54,545 INFO [Server] Core system initialized

[peterj]

Try using an 1.5 JDK instead.

[peterj]

Sorry, just now saw that you used a 1.5 JDK earlier and then switched to 1.6.

[asifiqbal]

No difference

(root)@server:~$ /usr/jdk/jdk1.5.0_11/bin/java -Dprogram.name=run.sh -server -Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djava.endorsed.dirs=/opt/jboss-4.2.1.GA/lib/endorsed -classpath /opt/jboss-4.2.1.GA/bin/run.jar org.jboss.Main > jboss.trace

(root)@server:~$ ps -ef | grep java
root 15012 14788 0 02:03:19 pts/4 0:04 /usr/jdk/jdk1.5.0_11/bin/java -Dprogram.name=run.sh -server -Xms128m -Xmx512m -
root 15077 15043 0 02:03:41 pts/5 0:00 grep java

(root)@server:~$ kill -QUIT 15012

(root)@server:~$ ps -ef | grep java
root 15143 15043 0 02:03:54 pts/5 0:00 grep java
root 15012 14788 0 02:03:19 pts/4 0:04 /usr/jdk/jdk1.5.0_11/bin/java -Dprogram.name=run.sh -server -Xms128m -Xmx512m -

(root)@server:~$ tail jboss.trace
02:03:19,194 INFO [Server] Server Name: default
02:03:19,194 INFO [Server] Server Home Dir: /opt/jboss-4.2.1.GA/server/default
02:03:19,194 INFO [Server] Server Home URL: file:/opt/jboss-4.2.1.GA/server/default/
02:03:19,194 INFO [Server] Server Log Dir: /opt/jboss-4.2.1.GA/server/default/log
02:03:19,194 INFO [Server] Server Temp Dir: /opt/jboss-4.2.1.GA/server/default/tmp
02:03:19,195 INFO [Server] Root Deployment Filename: jboss-service.xml
02:03:19,489 INFO [ServerInfo] Java version: 1.5.0_11,Sun Microsystems Inc.
02:03:19,489 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_11-b03,Sun Microsystems Inc.
02:03:19,489 INFO [ServerInfo] OS-System: SunOS 5.10,x86
02:03:19,877 INFO [Server] Core system initialized

(root)@server:~$ kill -3 15012

(root)@server:~$ tail jboss.trace
02:03:19,194 INFO [Server] Server Name: default
02:03:19,194 INFO [Server] Server Home Dir: /opt/jboss-4.2.1.GA/server/default
02:03:19,194 INFO [Server] Server Home URL: file:/opt/jboss-4.2.1.GA/server/default/
02:03:19,194 INFO [Server] Server Log Dir: /opt/jboss-4.2.1.GA/server/default/log
02:03:19,194 INFO [Server] Server Temp Dir: /opt/jboss-4.2.1.GA/server/default/tmp
02:03:19,195 INFO [Server] Root Deployment Filename: jboss-service.xml
02:03:19,489 INFO [ServerInfo] Java version: 1.5.0_11,Sun Microsystems Inc.
02:03:19,489 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_11-b03,Sun Microsystems Inc.
02:03:19,489 INFO [ServerInfo] OS-System: SunOS 5.10,x86
02:03:19,877 INFO [Server] Core system initialized

[asifiqbal]

It is still hanging

[peterj]

Because both the OS and the JVM come from Sun, and because the JVM is hung to the point where you cannot send it a QUIT signal so that you can get a JVM stack dump, I recommend that you contact Sun to find out what you can do to diagnose this problem.

[kotlakirankumar]

Hi

i am facing the same issue in our application,but its intermittently, Please provide possible cause for this issue, am newbie to JBoss

Thanks in Advance.