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JVM crash due to perm gen space 99% in use

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I am using flex builder 3 plugin on top of wtp eclipse 3.2.2. The application is quite heavy and needs 2 GB of physical RAM when running on JBoss.

I have eclipse.ini set with the following options:

Now whenever I am trying to build the project, eclipse crashes with the following error:
# An unexpected error has been detected by Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d88b795, pid=4572, tid=4660
# Java VM: Java HotSpot(TM) Client VM (11.0-b16 mixed mode windows-x86)
# Problematic frame:
# V [jvm.dll+0x8b795]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp

--------------- THREAD ---------------

Current thread (0x58412400): VMThread [stack: 0x584a0000,0x584f0000] [id=4660]

siginfo: ExceptionCode=0xc0000005, reading address 0x000001e0

EAX=0x00000000, EBX=0x00389d48, ECX=0x00000008, EDX=0x00000178
ESP=0x584ef99c, EBP=0x07a20000, ESI=0x00000008, EDI=0x440f5c88
EIP=0x6d88b795, EFLAGS=0x00010293

Top of Stack: (sp=0x584ef99c)
0x584ef99c: 6d939750 440f5c88 440f9f58 6da15074
0x584ef9ac: 6d894dbe 00000003 6da15074 6d93940a
0x584ef9bc: 440f9f58 6d9397ea 00000003 6d9af5b1
0x584ef9cc: 6da3056c 6da15074 00389d48 6d971c1b
0x584ef9dc: 6da15074 00000000 6da15074 6da15074
0x584ef9ec: 00389d48 6d8a9c11 00000001 00000002
0x584ef9fc: 6da15074 6da15074 00000001 00389d48
0x584efa0c: 07a20000 0ef14000 6d8ab84b 00000001

Instructions: (pc=0x6d88b795)
0x6d88b785: 00 83 e0 07 83 f8 05 74 1f 8b 54 24 04 8b 52 04
0x6d88b795: 8b 52 68 83 e2 07 80 fa 05 74 12 83 f8 01 75 0d

Stack: [0x584a0000,0x584f0000], sp=0x584ef99c, free space=318k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x8b795]

VM_Operation (0x5a62f8c4): GenCollectFull, mode: safepoint, requested by thread 0x59f45000

--------------- PROCESS ---------------

Java Threads: ( => current thread )
0x59fc6800 JavaThread "Worker-5" [_thread_blocked, id=5176, stack(0x5a680000,0x5a6d0000)]
0x59f58400 JavaThread "Worker-4" [_thread_blocked, id=4932, stack(0x5a630000,0x5a680000)]
0x59f45000 JavaThread "Worker-3" [_thread_blocked, id=5580, stack(0x5a5e0000,0x5a630000)]
0x59fcbc00 JavaThread "Worker-2" [_thread_blocked, id=5564, stack(0x5a590000,0x5a5e0000)]
0x59f3e800 JavaThread "Worker-1" [_thread_blocked, id=1104, stack(0x593e0000,0x59430000)]
0x58e7e800 JavaThread "org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon [_thread_blocked, id=5132, stack(0x5a3c0000,0x5a410000)]
0x58dc4c00 JavaThread "Java indexing" daemon [_thread_blocked, id=4532, stack(0x59b40000,0x59b90000)]
0x58b3f400 JavaThread "Worker-0" [_thread_blocked, id=5400, stack(0x59390000,0x593e0000)]
0x587e9400 JavaThread "Start Level Event Dispatcher" daemon [_thread_blocked, id=5372, stack(0x58ab0000,0x58b00000)]
0x587e5c00 JavaThread "Framework Event Dispatcher" daemon [_thread_blocked, id=1596, stack(0x58a60000,0x58ab0000)]
0x587e2400 JavaThread "State Data Manager" daemon [_thread_blocked, id=5020, stack(0x58a10000,0x58a60000)]
0x58434800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=2532, stack(0x58680000,0x586d0000)]
0x58430000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=2584, stack(0x58630000,0x58680000)]
0x5842cc00 JavaThread "Attach Listener" daemon [_thread_blocked, id=1056, stack(0x585e0000,0x58630000)]
0x5842b800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=6080, stack(0x58590000,0x585e0000)]
0x5841c000 JavaThread "Finalizer" daemon [_thread_blocked, id=2236, stack(0x58540000,0x58590000)]
0x58417400 JavaThread "Reference Handler" daemon [_thread_blocked, id=5796, stack(0x584f0000,0x58540000)]
0x00386800 JavaThread "main" [_thread_blocked, id=2300, stack(0x003b0000,0x00400000)]

Other Threads:
=>0x58412400 VMThread [stack: 0x584a0000,0x584f0000] [id=4660]
0x5843ec00 WatcherThread [stack: 0x586d0000,0x58720000] [id=4492]

VM state:at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
[0x00385750] UNKNOWN - owner thread: 0x58412400
[0x00385bb0] UNKNOWN - owner thread: 0x59f45000

def new generation total 70976K, used 23241K [0x02a70000, 0x07770000, 0x07a20000)
eden space 63104K, 36% used [0x02a70000, 0x04122770, 0x06810000)
from space 7872K, 0% used [0x06810000, 0x06810000, 0x06fc0000)
to space 7872K, 0% used [0x06fc0000, 0x06fc0000, 0x07770000)
tenured generation total 945280K, used 32043K [0x07a20000, 0x41540000, 0x43670000)
the space 945280K, 3% used [0x07a20000, 0x0996ac98, 0x0996ae00, 0x41540000)
compacting perm gen total 38144K, used 37935K [0x43670000, 0x45bb0000, 0x56270000)
the space 38144K, 99% used [0x43670000, 0x45b7bf00, 0x45b7c000, 0x45bb0000)

No shared spaces configured.

Dynamic libraries:
0x00400000 - 0x00424000 C:\WINDOWS\system32\javaw.exe
0x77cc0000 - 0x77d75000 C:\WINDOWS\system32\ntdll.dll
0x77e60000 - 0x77f50000 C:\WINDOWS\system32\kernel32.dll
0x77f50000 - 0x77feb000 C:\WINDOWS\system32\ADVAPI32.dll
0x77340000 - 0x773d1000 C:\WINDOWS\system32\RPCRT4.dll
0x77d80000 - 0x77e11000 C:\WINDOWS\system32\USER32.dll
0x773e0000 - 0x77425000 C:\WINDOWS\system32\GDI32.dll
0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll
0x6d800000 - 0x6da56000 C:\Program Files\Java\jre6\bin\client\jvm.dll
0x76b40000 - 0x76b6d000 C:\WINDOWS\system32\WINMM.dll
0x6d280000 - 0x6d288000 C:\Program Files\Java\jre6\bin\hpi.dll
0x76bf0000 - 0x76bfb000 C:\WINDOWS\system32\PSAPI.DLL
0x6d7b0000 - 0x6d7bc000 C:\Program Files\Java\jre6\bin\verify.dll
0x6d320000 - 0x6d33f000 C:\Program Files\Java\jre6\bin\java.dll
0x6d7f0000 - 0x6d7ff000 C:\Program Files\Java\jre6\bin\zip.dll
0x58930000 - 0x58957000 C:\WINDOWS\system32\rsaenh.dll
0x77c10000 - 0x77c68000 C:\WINDOWS\system32\msvcrt.dll
0x76620000 - 0x766d2000 C:\WINDOWS\system32\USERENV.dll
0x5fe20000 - 0x5fe73000 C:\WINDOWS\system32\netapi32.dll
0x6d610000 - 0x6d623000 C:\Program Files\Java\jre6\bin\net.dll
0x71ab0000 - 0x71ac7000 C:\WINDOWS\system32\WS2_32.dll
0x71aa0000 - 0x71aa8000 C:\WINDOWS\system32\WS2HELP.dll
0x71a50000 - 0x71a8e000 C:\WINDOWS\System32\mswsock.dll
0x76f20000 - 0x76f47000 C:\WINDOWS\system32\DNSAPI.dll
0x76fb0000 - 0x76fb7000 C:\WINDOWS\System32\winrnr.dll
0x76f60000 - 0x76f8d000 C:\WINDOWS\system32\WLDAP32.dll
0x76fc0000 - 0x76fc5000 C:\WINDOWS\system32\rasadhlp.dll
0x6d630000 - 0x6d639000 C:\Program Files\Java\jre6\bin\nio.dll
0x58f00000 - 0x58f53000 E:\eclipse_wtp\configuration\org.eclipse.osgi\bundles\327\1\.cp\swt-win32-3236.dll
0x774d0000 - 0x7760d000 C:\WINDOWS\system32\ole32.dll
0x58f70000 - 0x5905c000 C:\WINDOWS\WinSxS\X86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2096_x-ww_a7d210bd\COMCTL32.dll
0x772d0000 - 0x7731e000 C:\WINDOWS\system32\SHLWAPI.dll
0x763b0000 - 0x763f9000 C:\WINDOWS\system32\comdlg32.dll
0x7c800000 - 0x7d010000 C:\WINDOWS\system32\SHELL32.dll
0x77120000 - 0x771ac000 C:\WINDOWS\system32\OLEAUT32.dll
0x76390000 - 0x763ad000 C:\WINDOWS\system32\IMM32.dll
0x74770000 - 0x747db000 C:\WINDOWS\system32\USP10.dll
0x771b0000 - 0x77252000 C:\WINDOWS\system32\WININET.dll
0x77b00000 - 0x77b95000 C:\WINDOWS\system32\CRYPT32.dll
0x77ba0000 - 0x77bb1000 C:\WINDOWS\system32\MSASN1.dll
0x755b0000 - 0x755d1000 C:\WINDOWS\system32\MSVFW32.dll
0x5ad70000 - 0x5ada7000 C:\WINDOWS\system32\uxtheme.dll
0x59270000 - 0x59278000 E:\eclipse_wtp\configuration\org.eclipse.osgi\bundles\62\1\.cp\os\win32\x86\localfile_1_0_0.dll
0x74c80000 - 0x74cac000 C:\WINDOWS\system32\oleacc.dll
0x76080000 - 0x760e6000 C:\WINDOWS\system32\MSVCP60.dll
0x59470000 - 0x59483000 E:\eclipse_wtp\configuration\org.eclipse.osgi\bundles\327\1\.cp\swt-gdip-win32-3236.dll
0x594b0000 - 0x59653000 C:\WINDOWS\WinSxS\x86_Microsoft.Windows.GdiPlus_6595b64144ccf1df_1.0.2600.2096_x-ww_51b29046\gdiplus.dll
0x59810000 - 0x59a9f000 C:\WINDOWS\system32\xpsp2res.dll
0x77610000 - 0x776bf000 C:\WINDOWS\system32\CLBCATQ.DLL
0x77050000 - 0x77115000 C:\WINDOWS\system32\COMRes.dll
0x77c00000 - 0x77c08000 C:\WINDOWS\system32\VERSION.dll
0x75a70000 - 0x75b01000 C:\WINDOWS\system32\mlang.dll
0x76380000 - 0x76385000 C:\WINDOWS\system32\msimg32.dll

VM Arguments:
jvm_args: -Xms1000m -Xmx1036m -XX:MaxPermSize=300m -Djava.net.preferIPv4Stack=true
java_command: E:\eclipse_wtp\startup.jar -os win32 -ws win32 -arch x86 -launcher E:\eclipse_wtp\eclipse.exe -name Eclipse -showsplash 600 -exitdata 1560_4c -vm C:\WINDOWS\system32\javaw.exe -vmargs -Xms1000m -Xmx1036m -XX:MaxPermSize=300m -Djava.net.preferIPv4Stack=true -jar E:\eclipse_wtp\startup.jar
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=E:\Program Files\Java\jdk1.6.0_03
PATH=E:\Perl\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;E:\Program Files\TortoiseCVS;C:\Program Files\GNU\GnuPG\pub;E:\Program Files\Java\jre1.6.0_03\bin\javaw.exe\;E:\apache-ant-1.7.0\bin;"C:\Program Files\MySQL\MySQL Server 5.0\bin";E:\apache-maven-2.0.9\bin;;VFSDK\BIN
PROCESSOR_IDENTIFIER=x86 Family 15 Model 6 Stepping 4, GenuineIntel

--------------- S Y S T E M ---------------

OS: Windows XP Build 2600 Service Pack 2, v.2096

CPU:total 2 (2 cores per cpu, 1 threads per core) family 15 model 6 stepping 4, cmov, cx8, fxsr, mmx, sse, sse2, sse3

Memory: 4k page, physical 2086952k(898672k free), swap 4017200k(1797292k free)

vm_info: Java HotSpot(TM) Client VM (11.0-b16) for windows-x86 JRE (1.6.0_11-b03), built on Nov 10 2008 02:15:12 by "java_re" with MS VC++ 7.1

time: Mon Jan 05 17:47:24 2009
elapsed time: 63 seconds


After looking at this log, I got the line starting with "compacting perm gen" which made me thinking that there might be some problem in Perm Gen memory. I got quite a few references on the net but none could lead me to concrete solution. I tried with different combination of settings for MaxPermSize but no luck.

has anyone faced this problem on eclipse and aware of any possible solution?
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What you experienced was a crash of the JVM - something that shouldn't happen, even in low memory situations. Make sure you file a bug report with Sun as the message suggests.
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Also, it is not unusual to see the permgen space 99% occupied. The JVM usually uses only as much permgen space as is required. Note, for example, that you set max permgen size to 300MB but the JVM is using only 38MB.

I noticed that you are using JDK 1.6.0_03. That is a really old JVM. I very highly recommend upgrading to the latest JDK 6! I know, for example, that JVMs older than 1.6.0_04 have issues with JBoss AS 5.0.0.GA, and have serious issues when running on Vista.
manoj r patil
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Thanks for the replies.

Actually I am already using JVM 1.6.0_11-b03. And currently the problem is while running eclipse and could not reach to deployment stage at all so far. One thing I noticed is that I enabled some code styles in the eclipse preferences, and since then I am facing this problem. But now even after reverting those changes, the problem persists.

I have already reported this potential bug to sun and waiting for their response.
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