FULL PRODUCT VERSION :
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b51)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0-beta2-b51, mixed mode)


FULL OS VERSION :
Linux sauron 2.6.5-gentoo-r1 #1 Sat Apr 24 12:00:33 EDT 2004 x86_64 4  GNU/Linux


EXTRA RELEVANT SYSTEM CONFIGURATION :
Eclipse 3.0 RC1 download from http://www.ibiblio.org/pub/packages/development/eclipse/eclipse/downloads/dr
ops/S-3.0RC1-200405290105/download.php?dropFile=eclipse-SDK-3.0RC1-linux-gtk
-amd64.zip

Portage 2.0.50-r7 (default-amd64-2004.0, gcc-3.3.3, glibc-2.3.2-r10, 2.6.5-gentoo-r1)
=================================================================
System uname: 2.6.5-gentoo-r1 x86_64 4
Gentoo Base System version 1.4.15
Autoconf: sys-devel/autoconf-2.59-r4
Automake: sys-devel/automake-1.8.3
ACCEPT_KEYWORDS="amd64"
AUTOCLEAN="yes"
CFLAGS="-O2"
CHOST="x86_64-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.2/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="http://128.213.5.34/gentoo/ http://gentoo.mirrored.ca/ http://gentoo.mirrors.pair.com/ http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/opt/portage"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X aalib alsa amd64 apm arts artswrappersuid avi berkdb bonobo cdr crypt emacs encode esd foomaticdb gdbm gif gnome gpm gtk gtk2 gtkhtml imlib jpeg kde libg++ libwww mikmod motif mozilla mpeg multilib ncurses nls nogcj oggvorbis opengl oss pam pdflib perl png python qt quicktime readline sdl slang spell ssl tcltk tcpd truetype xml2 xmms xosd xv zlib"



A DESCRIPTION OF THE PROBLEM :
Attached error occurs everytime I startup Eclipse.  If I run Eclipse with options as follows: eclipse -vmargs -Djava.compiler=  there is no error.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Start eclipse

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Eclipse should run
ACTUAL -
(see error message below)

ERROR MESSAGES/STACK TRACES THAT OCCUR :
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x0000002a99eb0c10, pid=6106, tid=278546
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0-beta2-b51 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.jumpOverMethodBody()V
#

---------------  T H R E A D  ---------------

Current thread (0x00000000402eb310):  JavaThread "org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon [_thread_in_Java, id=6129]

siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x000000d684dcca18

Registers:
RAX=0x0000000000008083, RBX=0x0000002aea65ddb0, RCX=0x0000002aea65dd58, RDX=0x0000002adb455340
RSP=0x0000002aea65ddf0, RBP=0x0000000000000000, RSI=0x000000000000807d, RDI=0x0000000000000000
R8 =0x0000000000000028, R9 =0x00000000000080a1, R10=0x0000000000000001, R11=0x0000000000000000
R12=0x000000000000de13, R13=0x0000002adb3f539c, R14=0x0000002adb455340, R15=0x00000000402eb310
RIP=0x0000002a99eb0c10, EFL=0x0000000000010297, CSGSFS=0x0000000000001b03, ERR=0x0000000000000007
  TRAPNO=0x000000000000000e

  Top of Stack: (sp=0x0000002aea65ddf0)
0x0000002aea65ddf0:   000004e200000001 0000002adb3f53bc
0x0000002aea65de00:   0000002adb3f5318 0000002adb3f5318
0x0000002aea65de10:   0000002adb3f5328 0000002adb3f539c
0x0000002aea65de20:   00000000402eb310 0000002adb47fd60
0x0000002aea65de30:   0000002adb47fd78 0000002a0000807e
0x0000002aea65de40:   0000002ae16e7ff0 0000002a99e9fe1c
0x0000002aea65de50:   0000002ae18dae08 0000002ae226fca0
0x0000002aea65de60:   0000002ae16e8070 0000002aea65df40
0x0000002aea65de70:   0000002ae16f9770 0000002ae2251d78
0x0000002aea65de80:   0000000000000000 0000000000000000
0x0000002aea65de90:   0000000000000000 0000002adb3f1cc0
0x0000002aea65dea0:   0000002aea65dea0 0000002ae16f4a41
0x0000002aea65deb0:   0000002aea65df00 0000002ae18dae08
0x0000002aea65dec0:   0000002ae2271450 0000002a99d7d75e
0x0000002aea65ded0:   0000002aea65df40 0000002aea65df40
0x0000002aea65dee0:   0000002a99d21dfe 0000002aea65def0
0x0000002aea65def0:   0000002a99d21d1a 0000002adb3f5318
0x0000002aea65df00:   0000002adb3f1cc0 0000002aea65df08
0x0000002aea65df10:   0000002ae16f9770 0000002aea65df78
0x0000002aea65df20:   0000002ae18dae08 0000002ae2251d78
0x0000002aea65df30:   0000002ae16f98a8 0000002aea65df78
0x0000002aea65df40:   0000002aea65dfb8 0000002a99d21dfe
0x0000002aea65df50:   0000000000000000 00000000000000ff
0x0000002aea65df60:   00000000000002f5 0000000000000007
0x0000002aea65df70:   0000000000000001 0000002adb3f1cc0
0x0000002aea65df80:   0000002aea65df80 0000002ae16fa96f
0x0000002aea65df90:   0000002aea65e008 0000002ae18dae08
0x0000002aea65dfa0:   0000000000000000 0000002ae16faa28
0x0000002aea65dfb0:   0000002aea65dfe8 0000002aea65e048
0x0000002aea65dfc0:   0000002a99d21ce1 0000000000000000
0x0000002aea65dfd0:   0000000000000000 0000002adb4170a8
0x0000002aea65dfe0:   0000000000000000 00000000ffffffff

Instructions: (pc=0x0000002a99eb0c10)
0x0000002a99eb0c00:   83 e9 13 00 00 45 0f be 92 a9 00 00 00 4d 63 db
0x0000002a99eb0c10:   41 f7 5c 9e 18 45 85 d2 0f 84 4e 03 00 00 4c 8b

Stack: [0x0000002aea560000,0x0000002aea660000),  sp=0x0000002aea65ddf0,  free space=1015k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
J  org.eclipse.jdt.internal.compiler.parser.Scanner.jumpOverMethodBody()V

[error occurred during error reporting, step 120, id 0xb]


---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
=>0x00000000402eb310 JavaThread "org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon
 [_thread_in_Java, id=6129]
  0x0000000041777cc0 JavaThread "Worker-0" [_thread_blocked, id=6126]
  0x0000000041754830 JavaThread "Java indexing" daemon [_thread_blocked, id=6125]
  0x000000004038f1e0 JavaThread "Reference Cleaner - 2" [_thread_blocked, id=6124]
  0x0000000040391580 JavaThread "Reference Cleaner - 1" [_thread_blocked, id=6123]
  0x0000000040511900 JavaThread "Start Level Event Dispatcher" daemon [_thread_blocked, id=6120]
  0x0000000040509d30 JavaThread "Framework Event Dispatcher" daemon [_thread_blocked, id=6119]
  0x00000000402bb580 JavaThread "process reaper" daemon [_thread_in_native, id=6117]
  0x00000000401c9b20 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=6115]
  0x00000000401c7f70 JavaThread "CompilerThread1" daemon [_thread_blocked, id=6114]
  0x00000000401c6a80 JavaThread "CompilerThread0" daemon [_thread_blocked, id=6113]
  0x00000000401c5400 JavaThread "AdapterThread" daemon [_thread_blocked, id=6112]
  0x00000000401c3e50 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=6111]
  0x00000000401b0a00 JavaThread "Finalizer" daemon [_thread_blocked, id=6110]
  0x00000000401b0190 JavaThread "Reference Handler" daemon [_thread_blocked, id=6109]
  0x0000000040115ac0 JavaThread "main" [_thread_in_native, id=6106]

Other Threads:
  0x00000000401a9ea0 VMThread [id=6108]
  0x00000000401cb6f0 WatcherThread [id=6116]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation   total 12288K, used 9097K [0x0000002adad20000, 0x0000002adba70000,
0x0000002adc920000)
  eden space 10944K,  70% used [0x0000002adad20000, 0x0000002adb4b24f0, 0x0000002adb7d0000)
  from space 1344K,  99% used [0x0000002adb920000, 0x0000002adba6fff8, 0x0000002adba70000)
  to   space 1344K,   0% used [0x0000002adb7d0000, 0x0000002adb7d0000, 0x0000002adb920000)
 tenured generation   total 27220K, used 18370K [0x0000002adc920000, 0x0000002ade3b5000,
 0x0000002ae0120000)
   the space 27220K,  67% used [0x0000002adc920000, 0x0000002addb10988, 0x0000002addb10a00, 0x0000002ade3b5000)
 compacting perm gen  total 34368K, used 34118K [0x0000002ae0120000, 0x0000002ae22b0000,
 0x0000002ae5320000)
   the space 34368K,  99% used [0x0000002ae0120000, 0x0000002ae2271818, 0x0000002ae2271a00, 0x0000002ae22b0000)
No shared spaces configured.
[rest of stack moved to Internal Comments]

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
Temporary workaround is to disable the JIT compiler by passing the -Djava.compiler= option to Eclipse
(Incident Review ID: 276325) 
======================================================================

  xxxxx@xxxxx   2005-06-23 18:27:32 GMT
Posted Date : 2005-09-28 21:27:18.0

The crash also occurs on various flavors of linux (such as SuSE, Fedora and redhat).
Posted Date : 2005-10-21 22:33:44.0

N/A

Asked the customer to try B55 from 
http://java.sun.com/j2se/1.5.0/snapshots/
Still had the same failure
  xxxxx@xxxxx   2004-06-11

Sent the customer a fastdebug build and the failure went away.  Seems like something's been fixed.  Waiting for B56 to show up before closing
  xxxxx@xxxxx   2004-06-15

I ran with the following configs on RedHat AS4 (2.6.9 Kernel) with no crashes
Eclipse 3.1M6	JDK1.6-b30
Eclipse 3.1M6	JDK1.5
Eclipse 3.0.2	JDK1.6-b30
Eclipse 3.0.2	JDK1.5

Since we don't have Gentoo installed here, and its not a supported platform for Java or Eclipse, I think its ok to close this bug as will not fix.
  xxxxx@xxxxx   2005-04-06 17:14:12 GMT
While I'm working on this bug, there is a better workaround then just reverting
to the interpreter.  Create the following file in your Eclipse directory:

.hotspot_compiler

With the contents of:                    

exclude  org/eclipse/jdt/internal/compiler/parser/Scanner optimizedCurrentTokenSource3
exclude org/eclipse/jdt/internal/core/util/CommentRecorderScanner recordComment

Since its a dot file, it'll be hidden from ls, etc so remember to remove it when
I do get this fixed :)  Performance should be much better than the interpreter.
Posted Date : 2005-10-19 14:17:30.0

This bug has been fixed in Mustang Build 59(b59), each week the Mustang builds are posted to the link below. 
http://download.java.net/jdk6/binaries/
Posted Date : 2005-11-04 22:48:54.0

Seeing similar bugs with the Scanner.  This is with B60
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x0000002a99f48d40, pid=7623, tid=16384
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0-beta3-b60 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I
#
# An error report file with more information is saved as hs_err_pid7623.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x0000002a99f48d40, pid=7623, tid=16384
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0-beta3-b60 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I
#

Forgot to say that it was with Eclipse 3.0 Release.

I am getting similar errors with Eclipse 3.0.1

java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0-b64, mixed mode)

# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x0000002a9a27511d, pid=17873, tid=8945684
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0-b64 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I

and

# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x0000002a99ef8460, pid=20629, tid=507921
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0-b64 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.jumpOverMethodBody()V

If it would be useful to add the entire logs to this bug, then please email me. I saved a few of them.

I have the same problem with 1.5.0_01 on Linux with Eclipse 3.1M4

Same here with Eclipse 3.1M5 with Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_02-b09 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.jumpOverMethodBody()V

on
uname:Linux 2.6.8-10-amd64-k8 #1 Tue Mar 15 17:25:19 CET 2005 x86_64
libc:glibc 2.3.2 NPTL 0.60
rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity
load average:0,23 0,13 0,11

Sun, don't be lame.  Gentoo is a major distribution.  Would you rather have us stay on Blackdown, or move to Mono instead?

I'm getting something similar on Suse 9.3/x86_64, running Eclipse 3.1.0 M7

Linux avellana 2.6.11.4-20a-smp #1 SMP Wed Mar 23 21:52:37 UTC 2005 x86_64 x86_64 x86_64 GNU/Linux

java version "1.5.0_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_03-b07)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_03-b07, mixed mode)


#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x00002aaaaf493412, pid=7884, tid=1092397408
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_03-b07 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.getCurrentIdentifierSource()[C
#

This is a pretty serious problem with my machine (Suse 9.3, x86_64).  Because of this problem, Java 1.5 is unusable and I have to stop using it.  This happens very regularly.  

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x00002aaaaf7c86b0, pid=19564, tid=1093450080
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_03-b07 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I
#

---------------  T H R E A D  ---------------

Current thread (0x00002aab18119a30):  JavaThread "Text Viewer Hover Presenter" daemon [_thread_in_Java, id=19759]

siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00002aaf0c396ca4

[...]

VM Arguments:
jvm_args: -Xms300m -Xmx450m
java_command: /home/ken/eclipse/startup.jar -os linux -ws gtk -arch x86_64 -launcher /home/ken/eclipse/eclipse -name Eclipse -showsplash 600 -exitdata 45000e -vm /usr/java/jdk1.5.0_03/bin/java -vmargs -Xms300m -Xmx450m -jar /home/ken/eclipse/startup.jar

Environment Variables:
JAVA_HOME=/usr/java/jdk1.5.0_03
JRE_HOME=/usr/lib/jvm/jre
PATH=/home/ken/bin:/home/oracle/OraHome_1/bin:/usr/java/jdk1.5.0_03/bin:/home/ken/bin:/home/oracle/OraHome_1/bin:/usr/java/jdk1.5.0_03/bin:/home/ken/bin:/home/oracle/OraHome_1/bin:/usr/java/jdk1.5.0_03/bin:/home/ken/bin:/usr/local/bin:/usr/bin:/usr/X11R6/bin:/bin:/usr/games:/opt/gnome/bin:/opt/kde3/bin:/usr/lib/jvm/jre/bin
USERNAME=ken
LD_LIBRARY_PATH=/usr/java/jdk1.5.0_03/jre/lib/amd64/server:/usr/java/jdk1.5.0_03/jre/lib/amd64:/usr/java/jdk1.5.0_03/jre/../lib/amd64:/opt/mozilla/lib64
SHELL=/bin/bash
DISPLAY=:0.0
HOSTTYPE=x86_64
OSTYPE=linux
MACHTYPE=x86_64-suse-linux


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

OS:SuSE Linux 9.3 (x86-64)
VERSION = 9.3

uname:Linux 2.6.11.4-20a-smp #1 SMP Wed Mar 23 21:52:37 UTC 2005 x86_64
libc:glibc 2.3.4 NPTL 2.3.4 
rlimit: STACK infinity, CORE 0k, NPROC 16383, NOFILE 1024, AS infinity
load average:0.25 0.49 0.48

CPU:total 2 amd64 3dnow

Memory: 4k page, physical 2055256k(529056k free), swap 1052216k(1044356k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (1.5.0_03-b07) for linux-amd64, built on Apr 13 2005 01:49:07 by java_re with gcc 3.2.2 (SuSE Linux)

Happens *very* frequently on my Fedora Core 3 x86_64 OS.

java version "1.5.0_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_03-b07)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_03-b07, mixed mode)

Dual AMD Opteron 250, 6 GB RAM.

Looking at others' problems, it seems that there's some issue in the 64-bit JVM.

Still getting this on 1.5.0_04 with Eclipse 3.1(release)
java version 

This case happens often on my PC with 1.5.0_04, Eclipse 3.2M1. SuSE 9.3.

Seeing similar crashes on SuSE 9.3 with Eclipse 3.1 (64bit) and Java 1.5.0_03 (64bit) on a AMD64 X2

Serious problem, because it renders this setup almost useles.


I am somewhat puzzled by the symptoms of this crash, because it happenes at quite different situations. The crash is reproducible in a certain sense: if I fire up Eclipse again and do exactly the same. But
if I manage to get things done in a diferent way, I can pass the same situation without crash.
Intuitively, the common denomiator is: there is some internal indexing going on at the moment of the crash in a background thread.

But the crash dumps point at quite different locations, sometimes evein in native code.

Using the Online Help search funcion for the first time (normaly triggers indexing of all installed help pages):

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [libc.so.6+0x6fc75]  memmove+0x85

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  org.eclipse.swt.internal.mozilla.XPCOM.memmove([IJI)V+0
j  org.eclipse.swt.browser.PromptService.ConfirmEx(JJJJJJJJJJ)J+198
j  org.eclipse.swt.browser.PromptService$2.method7([J)J+38
j  org.eclipse.swt.internal.mozilla.XPCOMObject.callback7([J)J+52
v  ~StubRoutines::call_stub
j  org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(J)V+0
j  org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(J)V+8
j  org.eclipse.swt.widgets.Display.eventProc(JJ)J+326
v  ~StubRoutines::call_stub
j  org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(JZ)Z+0
j  org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(JZ)Z+9
j  org.eclipse.swt.widgets.Display.readAndDispatch()Z+12
j  org.eclipse.ui.internal.Workbench.runEventLoop(Lorg/eclipse/jface/window/Window$IExceptionHandler;Lorg/eclipse/swt/widgets/Display;)V+9
j

Opening JavaType by clicking on Compiler Error in Problems View:

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I

[error occurred during error reporting, step 120, id 0xb]



Updating Views after first succsessful Compile of whole project:

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
J  org.eclipse.jdt.internal.compiler.parser.Scanner.jumpOverMethodBody()V


Opening Aspect for the first time by clicking on Cross References View:

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x5f0966]
V  [libjvm.so+0x2c8a66]
V  [libjvm.so+0x4ffb28]
V  [libjvm.so+0x572f09]
V  [libjvm.so+0x51417b]
V  [libjvm.so+0x511e1e]

I've tried all manner of VM switches, all to no avail.  

The only workaround I have found to totally irradicate this issue is to use the IBM VM (Im running 64bit Ubuntu and all is stable).  

Until SUN can fix this I cant use their VM.

http://www-128.ibm.com/developerworks/java/jdk/

I am also getting this error on the following setup:

Fedora Core 4 , kernel 2.6.12-1.1398_FC4.x86_64 (amd64)
jdk1.5.0_03 and jdk1.5.0_05
Eclipse 3.1 and 3.1.1

What I have noticed is that it always crashes when you try to work with lots of big projects. I'm using about 11 projects with java files upto 50,000 lines. It crashes just after checking all the projects out and switching to the Resource Perspective or trying to open one of the big java files just after checking out all the projects.

Using the .hotspot_compiler workaround seems to solve things for me, thus far.

I have similar error

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x00002aaaaf5c6fa0, pid=6975, tid=1096616288
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_05-b05 mixed mode)
# Problematic frame:
# J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I
#

---------------  T H R E A D  ---------------

Current thread (0x00002aab01a7b760):  JavaThread "ModalContext" [_thread_in_Java, id=7025]

siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00002aabf603eb00

Registers:
RAX=0x00000000000002b8, RBX=0x00000000415cf0c0, RCX=0x00000000415cf060, RDX=0x00002aaaf09027e8
RSP=0x00000000415cf100, RBP=0x0000000000000000, RSI=0x000000000000007d, RDI=0x0000000000000000
R8 =0x00002aaaf08f9278, R9 =0x0000000000000317, R10=0x0000000000000000, R11=0x0000000000000000
R12=0x00000000000002da, R13=0x00002aaaf09027e8, R14=0x0000000000000000, R15=0x00002aab01a7b760
RIP=0x00002aaaaf5c6fa0, EFL=0x0000000000010297, CSGSFS=0x00000000000027c2, ERR=0x0000000000000006
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00000000415cf100)
0x00000000415cf100:   00002aaaf0902678 00002aaaf0902678
0x00000000415cf110:   00002aaaf0902714 00002aaaf0902714
0x00000000415cf120:   00000000000000ff 00000000000000b6
0x00000000415cf130:   0000000000000000 00002aab01a7b760
0x00000000415cf140:   00002aaaf090274f 00002aaaf0902748
0x00000000415cf150:   00000000000002b4 00002aaaf0902908
0x00000000415cf160:   00000042000002b9 0000000100000000
0x00000000415cf170:   00002aaaf81f3e68 00002aaaaf552364
0x00000000415cf180:   0000000a415cf198 000000ff00000001
0x00000000415cf190:   00002aaaf08ff068 00002aaa00003201
0x00000000415cf1a0:   00000000415cf1a0 00000000415cf258
0x00000000415cf1b0:   00002aaaf707b6af 0000000000000000
0x00000000415cf1c0:   0000000000000000 00002aaaf08fefb0
0x00000000415cf1d0:   0000000000000cf1 00000000415cf258
0x00000000415cf1e0:   00002aaaaf2afefe 00002aaaaf37471e
0x00000000415cf1f0:   00000000415cf258 00002aaaf0901450
0x00000000415cf200:   00002aaaf090ca08 00000000415cf210
0x00000000415cf210:   00002aaaaf2afefe 00002aaaf08fefb0
0x00000000415cf220:   00000000415cf220 00002aaaf707b6af
0x00000000415cf230:   00000000415cf2a8 00002aaaf7213fc8
0x00000000415cf240:   0000000000000000 00002aaaf707b768
0x00000000415cf250:   00000000415cf288 00000000415cf2e8
0x00000000415cf260:   00002aaaaf2afde1 0000000000000000
0x00000000415cf270:   0000000000000000 00002aaaf08f9278
0x00000000415cf280:   0000000000000000 00000000ffffffff
0x00000000415cf290:   00000000ffffffff 00002aaaf090c660
0x00000000415cf2a0:   00002aaaf090c5d8 00002aaaf08fefb0
0x00000000415cf2b0:   00000000415cf2b0 00002aaaf707b51d
0x00000000415cf2c0:   00000000415cf308 00002aaaf7213fc8
0x00000000415cf2d0:   0000000000000000 00002aaaf707b550
0x00000000415cf2e0:   00000000415cf2f8 00000000415cf348
0x00000000415cf2f0:   00002aaaaf2afde1 00002aaaf090c660 

Instructions: (pc=0x00002aaaaf5c6fa0)
0x00002aaaaf5c6f90:   45 3b f3 0f 83 b4 16 00 00 4d 8b 52 58 4d 63 de
0x00002aaaaf5c6fa0:   41 f7 5c 9d 18 4d 85 d2 74 1e 4c 8b 54 24 08 41 

Stack: [0x00000000414d0000,0x00000000415d1000),  sp=0x00000000415cf100,  free space=1020k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
J  org.eclipse.jdt.internal.compiler.parser.Scanner.getNextToken()I

[error occurred during error reporting, step 120, id 0xb]


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

OS:Gentoo Base System version 1.6.13

uname:Linux 2.6.13-gentoo-r5 #4 Thu Nov 10 17:46:18 CET 2005 x86_64
libc:glibc 2.3.5 NPTL 2.3.5 
rlimit: STACK 8192k, CORE 0k, NPROC 8191, NOFILE 1024, AS infinity
load average:0,29 0,07 0,07

CPU:total 1 amd64 3dnow

Memory: 4k page, physical 1025012k(283656k free), swap 987956k(987956k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (1.5.0_05-b05) for linux-amd64, built on Aug 26 2005 15:00:58 by java_re with gcc 3.2.2 (SuSE Linux)

i am getting this bug in unix environment
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x2a6f5075, pid=5044, tid=8201
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2_10-b03 mixed mode)
# Problematic frame:
# j  e4p_DecisionMaker.makeDecision(Le4p_InitailArrayContainer;I)I+2668
#

---------------  T H R E A D  ---------------

Current thread (0x082a3ed8):  JavaThread "Thread-0" [_thread_in_Java, id=5330]

siginfo:si_signo=11, si_errno=-1071498229, si_code=12, si_addr=0x00000000

Registers:
EAX=0x04000000, EBX=0x30797160, ECX=0x00000000, EDX=0x0c800002
ESP=0xbe5ff960, EBP=0xbe5ff988, ESI=0x30ac7d44, EDI=0xbe5ff9b8
EIP=0x2a6f5075, CR2=0xc580a700, EFLAGS=0x00010206

Top of Stack: (sp=0xbe5ff960)
0xbe5ff960:   2a6e8d43 30ac8950 00000000 be5ff96c
0xbe5ff970:   30ac7d44 be5ff9b8 30ac80f0 00000000
0xbe5ff980:   30ac7290 be5ff9b0 be5ff9d8 2a6e8def
0xbe5ff990:   00000000 00000000 00000000 00000000
0xbe5ff9a0:   00000000 00000001 00000000 00000000
0xbe5ff9b0:   00000005 2cd46c58 2c798b58 be5ff9bc
0xbe5ff9c0:   30a772f7 be5ffa1c 30a81da8 00000000
0xbe5ff9d0:   30a771a0 be5ffa1c be5ffa3c 2a6e8e9b 

Instructions: (pc=0x2a6f5075)
0x2a6f5065:   75 e8 8b c2 81 e0 00 00 00 04 0f 84 05 00 00 00
0x2a6f5075:   3b 01 ff 63 3c 8b 41 04 8b 9c 98 dc 00 00 00 8b 

Stack: [0xbe40e000,0xbe600000),  sp=0xbe5ff960,  free space=1990k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
j  e4p_DecisionMaker.makeDecision(Le4p_InitailArrayContainer;I)I+2668
j  e4p_Schedular.scheduleCaller()V+271
j  e4p_ModuleIterator.run()V+34
j  java.util.TimerThread.mainLoop()V+221
j  java.util.TimerThread.run()V+1
v  ~StubRoutines::call_stub
V  [libjvm.so+0x1a8aa4]
V  [libjvm.so+0x25e605]
V  [libjvm.so+0x1a8cf6]
V  [libjvm.so+0x1a85c6]
V  [libjvm.so+0x1a913f]
V  [libjvm.so+0x203695]
V  [libjvm.so+0x2aaa9a]
V  [libjvm.so+0x2a5f57]
V  [libjvm.so+0x260113]
C  [libpthread.so.0+0x5b85]  pthread_detach+0x515


---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
  0x082922e8 JavaThread "Thread-5" [_thread_blocked, id=5335]
  0x0825a818 JavaThread "Thread-4" [_thread_blocked, id=5334]
  0x0828e8a0 JavaThread "Thread-3" [_thread_in_native, id=5333]
  0x082553d8 JavaThread "DestroyJavaVM" [_thread_blocked, id=5044]
  0x082a3980 JavaThread "Thread-2" [_thread_blocked, id=5332]
  0x082a3800 JavaThread "Thread-1" [_thread_blocked, id=5331]
=>0x082a3ed8 JavaThread "Thread-0" [_thread_in_Java, id=5330]
  0x080995d0 JavaThread "CompilerThread0" daemon [_thread_blocked, id=5328]
  0x080987f8 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=5327]
  0x080954d8 JavaThread "Finalizer" daemon [_thread_blocked, id=5325]
  0x080939f8 JavaThread "Reference Handler" daemon [_thread_blocked, id=5324]

Other Threads:
  0x08090880 VMThread [id=5323]
  0x080b45c8 WatcherThread [id=5329]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation   total 576K, used 190K [0x2c790000, 0x2c830000, 0x2cc70000)
  eden space 512K,  24% used [0x2c790000, 0x2c7afbd8, 0x2c810000)
  from space 64K, 100% used [0x2c810000, 0x2c820000, 0x2c820000)
  to   space 64K,   0% used [0x2c820000, 0x2c820000, 0x2c830000)
 tenured generation   total 1408K, used 1105K [0x2cc70000, 0x2cdd0000, 0x30790000)
   the space 1408K,  78% used [0x2cc70000, 0x2cd845a0, 0x2cd84600, 0x2cdd0000)
 compacting perm gen  total 4096K, used 3457K [0x30790000, 0x30b90000, 0x34790000)
   the space 4096K,  84% used [0x30790000, 0x30af0400, 0x30af0400, 0x30b90000)