It looks like we may have had one of these this AM, but under somewhat different conditions: Windows server 2008, JVM 1.6.0_17 64-bit Server VM, TC 5.5.28. No tracks in any of the TC logs, and the Windows event viewer had the singularly un-useful "The Tomcat5 service terminated unexpectedly. It has done this 1 time(s)."

I did find this jvm error log, though, which appears to point to my jdbc driver:

#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00000000775c8926, pid=4860, tid=4272
#
# JRE version: 6.0_17-b04
# Java VM: Java HotSpot(TM) 64-Bit Server VM (14.3-b01 mixed mode windows-amd64 )
# Problematic frame:
# C  [ntdll.dll+0x48926]
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

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

Current thread (0x000000001a5a8000): JavaThread "http-81-Processor22" daemon [_thread_in_native, id=4272, stack(0x000000001bdc0000,0x000000001be00000)]

siginfo: ExceptionCode=0xc0000005, writing address 0x0000000000000010

Registers:
EAX=0x0000000000000000, EBX=0x0000000000000000, ECX=0x0000000000000008, EDX=0x0000000000000000 ESP=0x000000001bdfc660, EBP=0x0000000000000003, ESI=0x000000001a2572f0, EDI=0x000000001a2572f0
EIP=0x00000000775c8926, EFLAGS=0x0000000000010206

Top of Stack: (sp=0x000000001bdfc660)
0x000000001bdfc660:   0000000000000000 000000001bdfc7f8
0x000000001bdfc670:   000000001bdfd080 000000001c317568
0x000000001bdfc680:   0000000000000000 000007fef97b191c
0x000000001bdfc690:   0000000000000003 000000001a2572f0
0x000000001bdfc6a0:   000000001a2572f0 0000000000000001
0x000000001bdfc6b0:   000000001a2572f0 000007fef97d63e8
0x000000001bdfc6c0:   0000000000000001 000000001a2572f0
0x000000001bdfc6d0:   000000001c6038f0 000000001c371ce7
0x000000001bdfc6e0:   0000000000000400 000007fef97d7af7
0x000000001bdfc6f0:   0000000000000001 0000000000000001
0x000000001bdfc700:   0000000000000001 000000001cd98a50
0x000000001bdfc710:   0000000019d454a0 000000001c37200c
0x000000001bdfc720:   000000001c6038f0 0000000000000001
0x000000001bdfc730:   00000000000002a4 0000000000000001
0x000000001bdfc740:   000000001c600000 000000001c37207d
0x000000001bdfc750:   000000001c6038f0 ffffffffffffffff

Instructions: (pc=0x00000000775c8926)
0x00000000775c8916:   ff ff 90 90 90 90 90 90 90 90 ff f3 48 83 ec 20
0x00000000775c8926:   f0 0f ba 71 08 00 48 8b d1 0f 83 65 cb fd ff 65


Stack: [0x000000001bdc0000,0x000000001be00000], sp=0x000000001bdfc660, free space=241k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [ntdll.dll+0x48926]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j ianywhere.ml.jdbcodbc.IIStatement.executeQuery(Ljava/lang/String;)Ljava/sql/ResultSet;+0 j ianywhere.ml.jdbcodbc.IStatement.executeQuery(Ljava/lang/String;)Ljava/sql/ResultSet;+7 j com.wra.websira.WraJdbc.query(Ljava/sql/Statement;Ljava/lang/String;)Ljava/sql/ResultSet;+2 j com.wra.websira.WraTable.rawQuery(Lcom/wra/websira/WraDatabase;Ljava/sql/Statement;Ljava/lang/String;Ljava/lang/String;)Ljava/sql/ResultSet;+82
j  com.wra.reports.GenericReportByFuel.loadTankHeights()I+165
j com.wra.reports.GenericReconByFuel.runReport(Lcom/wra/reports/AdminReport;Lcom/wra/reports/ReconciliationDetail;)Ljava/lang/String;+1137 j com.wra.reports.ReconWRA_html.runReport(Lcom/wra/reports/AdminReport;Lcom/wra/reports/ReconciliationDetail;)Ljava/lang/String;+3
v  ~StubRoutines::call_stub
j sun.reflect.NativeMethodAccessorImpl.invoke0(Ljava/lang/reflect/Method;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+0 j sun.reflect.NativeMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+87 j sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+6 j java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+161 j SiteData.ReconReports.reportOneSite(Ljavax/servlet/http/HttpSession;)Ljava/lang/String;+547 j org.apache.jsp.ListInventory_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+215 j org.apache.jasper.runtime.HttpJspBase.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3 j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30 j org.apache.jasper.servlet.JspServletWrapper.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Z)V+203 j org.apache.jasper.servlet.JspServlet.serviceJspFile(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Ljava/lang/String;Ljava/lang/Throwable;Z)V+186 j org.apache.jasper.servlet.JspServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+435 j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30 j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+362 j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101 j org.apache.catalina.core.ApplicationDispatcher.invoke(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Lorg/apache/catalina/core/ApplicationDispatcher$State;)V+393 j org.apache.catalina.core.ApplicationDispatcher.processRequest(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Lorg/apache/catalina/core/ApplicationDispatcher$State;)V+68 j org.apache.catalina.core.ApplicationDispatcher.doForward(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+507 j org.apache.catalina.core.ApplicationDispatcher.forward(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+55 j org.apache.jasper.runtime.PageContextImpl.doForward(Ljava/lang/String;)V+113
j  org.apache.jasper.runtime.PageContextImpl.forward(Ljava/lang/String;)V+47
j org.apache.jsp.GetParameters_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+248 j org.apache.jasper.runtime.HttpJspBase.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+3 j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30 j org.apache.jasper.servlet.JspServletWrapper.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Z)V+203 j org.apache.jasper.servlet.JspServlet.serviceJspFile(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Ljava/lang/String;Ljava/lang/Throwable;Z)V+186 j org.apache.jasper.servlet.JspServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+435 j javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+30 j org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+362 j org.apache.catalina.core.ApplicationFilterChain.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+101 j org.apache.catalina.core.StandardWrapperValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+699 j org.apache.catalina.core.StandardContextValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+269 j org.apache.catalina.core.StandardHostValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+64 j org.apache.catalina.valves.ErrorReportValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+6 j org.apache.catalina.core.StandardEngineValve.invoke(Lorg/apache/catalina/connector/Request;Lorg/apache/catalina/connector/Response;)V+42 j org.apache.catalina.connector.CoyoteAdapter.service(Lorg/apache/coyote/Request;Lorg/apache/coyote/Response;)V+154 j org.apache.coyote.http11.Http11Processor.process(Ljava/io/InputStream;Ljava/io/OutputStream;)V+573 j org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+113 j org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(Ljava/net/Socket;Lorg/apache/tomcat/util/net/TcpConnection;[Ljava/lang/Object;)V+45 j org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt([Ljava/lang/Object;)V+102
j  org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run()V+167
j  java.lang.Thread.run()V+11
v  ~StubRoutines::call_stub

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

Java Threads: ( => current thread )
0x000000001a5ae800 JavaThread "TP-Monitor" daemon [_thread_blocked, id=4624, stack(0x000000001c000000,0x000000001c040000)] 0x000000001a5ad800 JavaThread "TP-Processor4" daemon [_thread_in_native, id=4840, stack(0x000000001bfc0000,0x000000001c000000)] 0x000000001a5ad000 JavaThread "TP-Processor3" daemon [_thread_blocked, id=4472, stack(0x000000001bf80000,0x000000001bfc0000)] 0x000000001a5ac800 JavaThread "TP-Processor2" daemon [_thread_blocked, id=3908, stack(0x000000001bf40000,0x000000001bf80000)] 0x000000001a5ab800 JavaThread "TP-Processor1" daemon [_thread_blocked, id=4148, stack(0x000000001bf00000,0x000000001bf40000)] 0x000000001a5ab000 JavaThread "http-81-Monitor" [_thread_blocked, id=4224, stack(0x000000001bec0000,0x000000001bf00000)] 0x000000001a5aa000 JavaThread "http-81-Processor25" daemon [_thread_blocked, id=4400, stack(0x000000001be80000,0x000000001bec0000)] 0x000000001a5a9800 JavaThread "http-81-Processor24" daemon [_thread_in_native, id=4452, stack(0x000000001be40000,0x000000001be80000)] 0x000000001a5a8800 JavaThread "http-81-Processor23" daemon [_thread_in_native, id=4800, stack(0x000000001be00000,0x000000001be40000)] =>0x000000001a5a8000 JavaThread "http-81-Processor22" daemon [_thread_in_native, id=4272, stack(0x000000001bdc0000,0x000000001be00000)] 0x000000001a5a7000 JavaThread "http-81-Processor21" daemon [_thread_blocked, id=540, stack(0x000000001bd80000,0x000000001bdc0000)] 0x000000001a5a6800 JavaThread "http-81-Processor20" daemon [_thread_blocked, id=5008, stack(0x000000001bd40000,0x000000001bd80000)] 0x000000001a5a6000 JavaThread "http-81-Processor19" daemon [_thread_blocked, id=3452, stack(0x000000001bd00000,0x000000001bd40000)] 0x000000001a5a5000 JavaThread "http-81-Processor18" daemon [_thread_blocked, id=2924, stack(0x000000001bcc0000,0x000000001bd00000)] 0x000000001a5a4800 JavaThread "http-81-Processor17" daemon [_thread_blocked, id=4192, stack(0x000000001bc80000,0x000000001bcc0000)] 0x000000001a5a3800 JavaThread "http-81-Processor16" daemon [_thread_blocked, id=924, stack(0x000000001bc40000,0x000000001bc80000)] 0x000000001a5a3000 JavaThread "http-81-Processor15" daemon [_thread_blocked, id=4316, stack(0x000000001bc00000,0x000000001bc40000)] 0x000000001a5a2000 JavaThread "http-81-Processor14" daemon [_thread_blocked, id=552, stack(0x000000001bbc0000,0x000000001bc00000)] 0x000000001a5a1800 JavaThread "http-81-Processor13" daemon [_thread_blocked, id=4636, stack(0x000000001bb80000,0x000000001bbc0000)] 0x000000001a5a0800 JavaThread "http-81-Processor12" daemon [_thread_blocked, id=4468, stack(0x000000001bb40000,0x000000001bb80000)] 0x000000001a5a0000 JavaThread "http-81-Processor11" daemon [_thread_blocked, id=1268, stack(0x000000001bb00000,0x000000001bb40000)] 0x000000001a59f800 JavaThread "http-81-Processor10" daemon [_thread_blocked, id=4508, stack(0x000000001bac0000,0x000000001bb00000)] 0x0000000019eb3800 JavaThread "http-81-Processor9" daemon [_thread_blocked, id=4496, stack(0x000000001ba80000,0x000000001bac0000)] 0x000000001a2fa800 JavaThread "http-81-Processor8" daemon [_thread_blocked, id=4336, stack(0x000000001ba40000,0x000000001ba80000)] 0x000000001a5bf000 JavaThread "http-81-Processor7" daemon [_thread_blocked, id=4928, stack(0x000000001ba00000,0x000000001ba40000)] 0x000000001a5be000 JavaThread "http-81-Processor6" daemon [_thread_blocked, id=3580, stack(0x000000001b9c0000,0x000000001ba00000)] 0x000000001a5bd800 JavaThread "http-81-Processor5" daemon [_thread_blocked, id=280, stack(0x000000001b980000,0x000000001b9c0000)] 0x0000000019f2e000 JavaThread "http-81-Processor4" daemon [_thread_blocked, id=4736, stack(0x000000001b940000,0x000000001b980000)] 0x0000000019f2d000 JavaThread "http-81-Processor3" daemon [_thread_blocked, id=4260, stack(0x000000001b860000,0x000000001b8a0000)] 0x000000001a22f800 JavaThread "http-81-Processor2" daemon [_thread_blocked, id=4996, stack(0x000000001b820000,0x000000001b860000)] 0x0000000019ec6000 JavaThread "http-81-Processor1" daemon [_thread_blocked, id=4016, stack(0x000000001b7e0000,0x000000001b820000)] 0x000000001a6a0800 JavaThread "ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon [_thread_blocked, id=4936, stack(0x000000001b7a0000,0x000000001b7e0000)] 0x0000000019a4f800 JavaThread "Thread-1" [_thread_in_native, id=564, stack(0x0000000019e30000,0x0000000019e70000)] 0x00000000196fa000 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4728, stack(0x00000000199b0000,0x00000000199f0000)] 0x00000000196eb000 JavaThread "CompilerThread1" daemon [_thread_blocked, id=3780, stack(0x0000000019970000,0x00000000199b0000)] 0x00000000196e2000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=4124, stack(0x0000000019930000,0x0000000019970000)] 0x00000000196e0800 JavaThread "Attach Listener" daemon [_thread_blocked, id=4988, stack(0x00000000198f0000,0x0000000019930000)] 0x000000000017f000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=4844, stack(0x00000000198b0000,0x00000000198f0000)] 0x0000000019695000 JavaThread "Finalizer" daemon [_thread_blocked, id=4340, stack(0x0000000019870000,0x00000000198b0000)] 0x0000000000170000 JavaThread "Reference Handler" daemon [_thread_blocked, id=3432, stack(0x0000000019830000,0x0000000019870000)] 0x00000000003ac000 JavaThread "main" [_thread_in_native, id=4384, stack(0x00000000003b0000,0x00000000003f0000)]

Other Threads:
0x0000000019690800 VMThread [stack: 0x00000000197f0000,0x0000000019830000] [id=3976] 0x00000000196fb000 WatcherThread [stack: 0x00000000199f0000,0x0000000019a30000] [id=4212]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
PSYoungGen total 75200K, used 31747K [0x0000000013ef0000, 0x0000000019440000, 0x0000000019440000) eden space 63552K, 46% used [0x0000000013ef0000,0x0000000015c10fd0,0x0000000017d00000) from space 11648K, 16% used [0x0000000017d00000,0x0000000017ee0000,0x0000000018860000) to space 11648K, 0% used [0x00000000188e0000,0x00000000188e0000,0x0000000019440000) PSOldGen total 174784K, used 75153K [0x0000000009440000, 0x0000000013ef0000, 0x0000000013ef0000) object space 174784K, 42% used [0x0000000009440000,0x000000000dda46e8,0x0000000013ef0000) PSPermGen total 21248K, used 20419K [0x0000000004040000, 0x0000000005500000, 0x0000000009440000) object space 21248K, 96% used [0x0000000004040000,0x0000000005430f88,0x0000000005500000)

Dynamic libraries:
0x0000000000400000 - 0x0000000000416000 C:\Program Files\Apache Software Foundation\Tomcat 5.5\bin\procrun\amd64\tomcat5.exe
0x0000000077580000 - 0x0000000077706000         C:\Windows\system32\ntdll.dll
0x0000000077380000 - 0x00000000774ad000         C:\Windows\system32\kernel32.dll
0x00000000774b0000 - 0x000000007757d000         C:\Windows\system32\USER32.dll
0x000007fefddf0000 - 0x000007fefde54000         C:\Windows\system32\GDI32.dll
0x000007fefe7a0000 - 0x000007fefe8a8000         C:\Windows\system32\ADVAPI32.dll
0x000007fefe620000 - 0x000007fefe763000         C:\Windows\system32\RPCRT4.dll
0x000007fefe8b0000 - 0x000007fefe94c000         C:\Windows\system32\msvcrt.dll
0x000007fefec40000 - 0x000007feff893000         C:\Windows\system32\SHELL32.dll
0x000007fefe060000 - 0x000007fefe0d3000         C:\Windows\system32\SHLWAPI.dll
0x000007fefe770000 - 0x000007fefe79d000         C:\Windows\system32\IMM32.DLL
0x000007fefeb30000 - 0x000007fefec32000         C:\Windows\system32\MSCTF.dll
0x000007fefdbd0000 - 0x000007fefdbdd000         C:\Windows\system32\LPK.DLL
0x000007fefe580000 - 0x000007fefe61a000         C:\Windows\system32\USP10.dll
0x000007fefc1b0000 - 0x000007fefc3a9000 C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6002.18005_none_1509f8bef40ee4da\comctl32.dll 0x000000006d890000 - 0x000000006deed000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\server\jvm.dll
0x000007fefb840000 - 0x000007fefb879000         C:\Windows\system32\WINMM.dll
0x000007fefde80000 - 0x000007fefe058000         C:\Windows\system32\ole32.dll
0x000007fefe4a0000 - 0x000007fefe573000         C:\Windows\system32\OLEAUT32.dll
0x00000000756a0000 - 0x00000000756f2000         C:\Windows\system32\OLEACC.dll
0x000000006d800000 - 0x000000006d80e000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\verify.dll 0x000000006d450000 - 0x000000006d477000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\java.dll 0x000000006d3b0000 - 0x000000006d3ba000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\hpi.dll
0x0000000077720000 - 0x0000000077729000         C:\Windows\system32\PSAPI.DLL
0x000000006d850000 - 0x000000006d862000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\zip.dll 0x000000006d6a0000 - 0x000000006d6b7000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\net.dll
0x000007fefe450000 - 0x000007fefe494000         C:\Windows\system32\WS2_32.dll
0x000007fefe200000 - 0x000007fefe207000         C:\Windows\system32\NSI.dll
0x000007fefceb0000 - 0x000007fefceff000         C:\Windows\system32\mswsock.dll
0x000007fefce30000 - 0x000007fefce37000         C:\Windows\System32\wship6.dll
0x000007fefc9a0000 - 0x000007fefc9a7000         C:\Windows\System32\wshtcpip.dll
0x0000000066700000 - 0x000000006675c000 C:\Program Files\Sybase\SQL Anywhere 9\x64\dbjodbc9.dll
0x000007fef97b0000 - 0x000007fef9821000         C:\Windows\system32\ODBC32.dll
0x000007fefae40000 - 0x000007fefaee0000 C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_5.82.6001.18000_none_40ba501d3c2b20ff\COMCTL32.dll
0x000007fefdd60000 - 0x000007fefddec000         C:\Windows\system32\COMDLG32.dll
0x0000000074130000 - 0x0000000074168000         C:\Windows\system32\odbcint.dll
0x000000006d4a0000 - 0x000000006d4b2000 C:\Program Files\Java\jdk1.6.0_17\jre\bin\JdbcOdbc.dll 0x000000001c350000 - 0x000000001c430000 C:\Program Files\Sybase\SQL Anywhere 9\x64\dbodbc9.dll
0x000007fefbe70000 - 0x000007fefbe79000         C:\Windows\system32\WSOCK32.dll
0x000007fefb4a0000 - 0x000007fefb4bf000         C:\Windows\system32\odbccp32.dll
0x000007fefcac0000 - 0x000007fefcacb000         C:\Windows\system32\VERSION.dll
0x0000000065000000 - 0x00000000650a6000 C:\Program Files\Sybase\SQL Anywhere 9\x64\dblgen9.dll
0x000007fefd940000 - 0x000007fefd966000         C:\Windows\system32\USERENV.dll
0x000007fefd920000 - 0x000007fefd93c000         C:\Windows\system32\Secur32.dll
0x000007fefd0f0000 - 0x000007fefd113000         C:\Windows\system32\IpHlpApi.dll
0x000007fefd0a0000 - 0x000007fefd0e5000         C:\Windows\system32\dhcpcsvc.DLL
0x000007fefd3b0000 - 0x000007fefd3ea000         C:\Windows\system32\DNSAPI.dll
0x000007fefd7d0000 - 0x000007fefd7da000         C:\Windows\system32\WINNSI.DLL
0x000007fefd070000 - 0x000007fefd09b000         
C:\Windows\system32\dhcpcsvc6.DLL
0x000007fefc8b0000 - 0x000007fefc8c3000         C:\Windows\system32\NLAapi.dll
0x000007fefb040000 - 0x000007fefb053000         C:\Windows\system32\napinsp.dll
0x000007fefb070000 - 0x000007fefb07b000         C:\Windows\System32\winrnr.dll
0x000007fefdb70000 - 0x000007fefdbc5000         C:\Windows\system32\WLDAP32.dll
0x000007fefb090000 - 0x000007fefb098000         C:\Windows\system32\rasadhlp.dll

VM Arguments:
jvm_args: -Dcatalina.base=E:\TomcatClients\Pelican -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 5.5 -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 5.5\common\endorsed -Djava.io.tmpdir=E:\TomcatClients\Pelican\temp -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=C:\Program Files\Apache Software Foundation\Tomcat 5.5\conf\logging.properties -DWebSira.configFileName=E:\TomcatClients\Pelican\PelicanWebSIRA.properties vfprintf -Xms256m -Xmx256m
java_command: <unknown>
Launcher Type: generic

Environment Variables:
PATH=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\Intel\DMIX;C:\Program Files\SAS\SharedFiles(32)\Formats;C:\Program Files\Sybase\SQL Anywhere 9\x64;C:\Program Files\Sybase\SQL Anywhere 9\win32;C:\Program Files\Sybase\Shared\win32
USERNAME=SAS2$
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 23 Stepping 10, GenuineIntel



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

OS: Windows Server 2008 Build 6002 Service Pack 2

CPU:total 4 (4 cores per cpu, 1 threads per core) family 6 model 23 stepping 10, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1

Memory: 4k page, physical 8381784k(4859168k free), swap 16815840k(13318972k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (14.3-b01) for windows-amd64 JRE (1.6.0_17-b04), built on Oct 11 2009 00:46:08 by "java_re" with MS VC++ 8.0

time: Fri Mar 26 10:21:01 2010
elapsed time: 80912 seconds





On 3/22/2010 3:33 PM, Carl wrote:
Dan,

6u18 did not work for us, crashed with the same regularity as 6u17.
However, 6u7 has been running for two weeks without a failure (the
others would fail between 15 minutes and 10 days runtime.)

Thanks,

Carl
----- Original Message ----- From: "Dan Armbrust"
<daniel.armbrust.l...@gmail.com>
To: "Tomcat Users List" <users@tomcat.apache.org>
Sent: Monday, March 22, 2010 1:17 PM
Subject: Re: [OT] Re: jvm exits without trace


On Tue, Mar 16, 2010 at 4:46 PM, Carl <c...@etrak-plus.com> wrote:
My approach is to get something (a JVM) that works and then gradually
change
until it breaks. Then, I know what is causing the problem. To date, I
haven't been able to get a JVM that works.


I have had a lot of issues finding stable JVMs since I moved our
software from 1.5 to 1.6... 1.6 has been a mess for ages under our
workload on CentOS. Code that ran fine under 1.5 would segfault in
all sorts of random places on 1.6. I even tried the 1.7 openJDK early
builds... they were even worse.

I was pleased to see that the most recent release
http://java.sun.com/javase/6/webnotes/6u18.html contains _tons_ of bug
fixes, including lots of crash fixes. Seriously... the last few
releases have contained only a handful of fixes... this release has
hundreds.

I'm testing it now, and so far, it looks promising. This may be the
first 1.6 release that I've found that doesn't crash with my workload.
Unfortunately, I've never been able to pin down a sequence of events
that would cause the crash on demand, so its hard for me to verify
that things are finally fixed, other than doing long term load testing
and waiting for the crashes to (hopefully) not happen.

Dan

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