title: A fatal error has been detected by the Java Runtime Environment: SIGSEGV (0xb) at pc=0x00002b2f7e9b2744, pid=28778, tid=1138739520
body: <p>I am getting the following error while executing the program. </p>
  
  <p>And this is not always happening. 
  The code contains some complex calculations with a large volume of data.</p>
  
  <p>Could somebody help to identify the error </p>
  
  <pre><code>#
  # A fatal error has been detected by the Java Runtime Environment:
  #
  #  SIGSEGV (0xb) at pc=0x00002b2f7e9b2744, pid=28778, tid=1138739520
  #
  # JRE version: 7.0-b147
  # Java VM: Java HotSpot(TM) 64-Bit Server VM (21.0-b17 mixed mode linux-amd64 compressed oops)
  # Problematic frame:
  # V  [libjvm.so+0x64e744]  PhaseIdealLoop::clone_loop(IdealLoopTree*, Node_List&amp;, int, Node*)+0xe34
  #
  # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
  #
  # If you would like to submit a bug report, please visit:
  #   http://bugreport.sun.com/bugreport/crash.jsp
  #
  
  ---------------  T H R E A D  ---------------
  
  Current thread (0x00002aaab4198000):  JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=28799, stack(0x0000000043cfc000,0x0000000043dfd000)]
  
  siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000008
  
  Registers:
  RAX=0x0000000000000000, RBX=0x000000000f2793a0, RCX=0x0000000000004000, RDX=0x0000000000000000
  RSP=0x0000000043df8050, RBP=0x0000000043df8170, RSI=0x00002aaab727e610, RDI=0x00002aaab6020d70
  R8 =0x00002aaab5ff7519, R9 =0x0000000000004000, R10=0x00002aaab72266c0, R11=0x00002aaab5fe9140
  R12=0x00002aaab4d3f7c0, R13=0x0000000000000002, R14=0x000000000c5f76d0, R15=0x0000000043df9bc0
  RIP=0x00002b2f7e9b2744, EFLAGS=0x0000000000010202, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
    TRAPNO=0x000000000000000e
  
  Top of Stack: (sp=0x0000000043df8050)
  0x0000000043df8050:   00002aaab4d41ea0 0000000043df8120
  0x0000000043df8060:   0000000043df8120 0000000000000000
  0x0000000043df8070:   0000020043df80a0 0000000043df86e0
  0x0000000043df8080:   00002aaab6020d70 00002aaab419c020
  0x0000000043df8090:   000038d443df9bc0 0000000000000000
  0x0000000043df80a0:   0000000000000000 0000000000000000
  0x0000000043df80b0:   00002aaab4d40d78 00002aaab6020d70
  0x0000000043df80c0:   00002aaab4d41638 0000020ab4801e80
  0x0000000043df80d0:   00002aaab5ff6d18 00002aaab5ff4aa8
  0x0000000043df80e0:   00002aaab4d40df8 0000000043df9be0
  0x0000000043df80f0:   00002aaab5ff6d20 0000000000000010
  0x0000000043df8100:   0000000043df9be0 00002aaab4d41678
  0x0000000043df8110:   0000002d0000002d 000002010000002c
  0x0000000043df8120:   00002aaab419c020 00002aaa00000008
  0x0000000043df8130:   00002aaab5fe9140 00002b2f00000003
  0x0000000043df8140:   00002aaab4ff9448 0000000043df9bc0
  0x0000000043df8150:   00002aaab4d3ffa8 00002aaab4d3ff40
  0x0000000043df8160:   00002aaab4d3fe70 00002aaab4ff9580
  0x0000000043df8170:   0000000043df8250 00002b2f7e996ea5
  0x0000000043df8180:   0000000043df9be0 01000001c018ba10
  0x0000000043df8190:   0000000043df86e0 00002aaab6020d70
  0x0000000043df81a0:   0000000043df9bc0 00002aaab4ff94f8
  0x0000000043df81b0:   00002aaab4d3f6d8 00002aaab5ff70b8
  0x0000000043df81c0:   000000000c5fc740 00002aaab4d3f520
  0x0000000043df81d0:   7fffffff00000200 00002aaab4ff9448
  0x0000000043df81e0:   00002aaab4d3f4e0 00000003b6020d70
  0x0000000043df81f0:   00002aaab4d3fe30 0000000043df9be0
  0x0000000043df8200:   000000000b77a070 00002aaab4d3fd48
  0x0000000043df8210:   00002aaab4d3fa38 00000001b5ff7500
  0x0000000043df8220:   0000000043df86e0 00002aaab6020d70
  0x0000000043df8230:   00002aaab4ff9580 0000000043df9bc0
  0x0000000043df8240:   0000000043df86e0 0000000000000001 
  
  Instructions: (pc=0x00002b2f7e9b2744)
  0x00002b2f7e9b2724:   ff ff 66 2e 0f 1f 84 00 00 00 00 00 89 c0 48 8d
  0x00002b2f7e9b2734:   34 c5 00 00 00 00 49 03 b7 e0 09 00 00 48 8b 16
  0x00002b2f7e9b2744:   48 8b 42 08 48 83 38 00 75 2b 41 8b 4f 28 66 0f
  0x00002b2f7e9b2754:   1f 44 00 00 8b 42 28 31 d2 39 c8 73 0e 89 c2 49 
  
  Register to memory mapping:
  
  RAX=0x0000000000000000 is an unknown value
  RBX=0x000000000f2793a0 is an unknown value
  RCX=0x0000000000004000 is an unknown value
  RDX=0x0000000000000000 is an unknown value
  RSP=0x0000000043df8050 is pointing into the stack for thread: 0x00002aaab4198000
  RBP=0x0000000043df8170 is pointing into the stack for thread: 0x00002aaab4198000
  RSI=0x00002aaab727e610 is an unknown value
  RDI=0x00002aaab6020d70 is an unknown value
  R8 =0x00002aaab5ff7519 is an unknown value
  R9 =0x0000000000004000 is an unknown value
  R10=0x00002aaab72266c0 is an unknown value
  R11=0x00002aaab5fe9140 is an unknown value
  R12=0x00002aaab4d3f7c0 is an unknown value
  R13=0x0000000000000002 is an unknown value
  R14=0x000000000c5f76d0 is an unknown value
  R15=0x0000000043df9bc0 is pointing into the stack for thread: 0x00002aaab4198000
  
  
  Stack: [0x0000000043cfc000,0x0000000043dfd000],  sp=0x0000000043df8050,  free space=1008k
  Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
  V  [libjvm.so+0x64e744]  PhaseIdealLoop::clone_loop(IdealLoopTree*, Node_List&amp;, int, Node*)+0xe34
  V  [libjvm.so+0x632ea5]  PhaseIdealLoop::do_unroll(IdealLoopTree*, Node_List&amp;, bool)+0x645
  V  [libjvm.so+0x6382c9]  IdealLoopTree::iteration_split_impl(PhaseIdealLoop*, Node_List&amp;)+0x4b9
  V  [libjvm.so+0x638468]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0x148
  V  [libjvm.so+0x638418]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0xf8
  V  [libjvm.so+0x638418]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0xf8
  V  [libjvm.so+0x638418]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0xf8
  V  [libjvm.so+0x638418]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0xf8
  V  [libjvm.so+0x638418]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0xf8
  V  [libjvm.so+0x638418]  IdealLoopTree::iteration_split(PhaseIdealLoop*, Node_List&amp;)+0xf8
  V  [libjvm.so+0x645e3c]  PhaseIdealLoop::build_and_optimize(bool)+0x90c
  V  [libjvm.so+0x39c36e]  Compile::Optimize()+0x43e
  V  [libjvm.so+0x39d96c]  Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool)+0xdac
  V  [libjvm.so+0x312042]  C2Compiler::compile_method(ciEnv*, ciMethod*, int)+0x142
  V  [libjvm.so+0x3a2cad]  CompileBroker::invoke_compiler_on_method(CompileTask*)+0x2ed
  V  [libjvm.so+0x3a35dd]  CompileBroker::compiler_thread_loop()+0x43d
  V  [libjvm.so+0x80d79a]  JavaThread::run()+0x17a
  V  [libjvm.so+0x6f84b0]  java_start(Thread*)+0x100
  
  
  Current CompileTask:
  C2: 768101 3793   !         fmi.common.utils.PortfolioEvaluator::CalculateMaxDrawDown (666 bytes)
  
  
  ---------------  P R O C E S S  ---------------
  
  Java Threads: ( =&gt; current thread )
    0x000000000d858800 JavaThread "Keep-Alive-Timer" daemon [_thread_blocked, id=3547, stack(0x0000000055336000,0x0000000055837000)]
    0x000000000c858800 JavaThread "log-rotation-timer" [_thread_blocked, id=29237, stack(0x0000000049a11000,0x0000000049f12000)]
    0x00002aaab9c97800 JavaThread "Thread-54" daemon [_thread_in_native, id=29089, stack(0x000000004bd18000,0x000000004c219000)]
    0x00002aaab8d6b000 JavaThread "Thread-51" daemon [_thread_blocked, id=29052, stack(0x000000004c71a000,0x000000004cc1b000)]
    0x000000000e630000 JavaThread "http-thread-pool-443(5)" daemon [_thread_blocked, id=28901, stack(0x000000004900f000,0x0000000049510000)]
    0x000000000e62f000 JavaThread "http-thread-pool-443(4)" daemon [_thread_in_native, id=28900, stack(0x000000004ea21000,0x000000004ef22000)]
    0x000000000e62e800 JavaThread "http-thread-pool-443(3)" daemon [_thread_in_Java, id=28899, stack(0x0000000049510000,0x0000000049a11000)]
    0x000000000f461000 JavaThread "http-thread-pool-443(2)" daemon [_thread_blocked, id=28898, stack(0x0000000051229000,0x000000005172a000)]
    0x000000000e21b800 JavaThread "http-thread-pool-443(1)" daemon [_thread_in_native, id=28897, stack(0x0000000053f32000,0x0000000054433000)]
    0x00002aaac1de5800 JavaThread "pool-7-thread-1" [_thread_blocked, id=28892, stack(0x0000000054e35000,0x0000000055336000)]
    0x00002aaab98f2000 JavaThread "SCR Component Actor" daemon [_thread_blocked, id=28890, stack(0x000000004f924000,0x000000004fe25000)]
    0x00002aaab9d72800 JavaThread "fileinstall-/var/glassfish/domains/domain1/autodeploy/bundles/" daemon [_thread_blocked, id=28889, stack(0x0000000054433000,0x0000000054934000)]
    0x00002aaab5d66800 JavaThread "RMI RenewClean-[127.0.0.1:8686]" daemon [_thread_blocked, id=28887, stack(0x0000000053a31000,0x0000000053f32000)]
    0x00002aaab9220000 JavaThread "Configuration Updater" daemon [_thread_blocked, id=28886, stack(0x0000000053530000,0x0000000053a31000)]
    0x00002aaab9ed3800 JavaThread "RMI Scheduler(0)" daemon [_thread_blocked, id=28885, stack(0x000000005302f000,0x0000000053530000)]
    0x00002aaab8d74000 JavaThread "http-thread-pool-80(5)" daemon [_thread_blocked, id=28884, stack(0x0000000052b2e000,0x000000005302f000)]
    0x00002aaaba5d9800 JavaThread "http-thread-pool-80(4)" daemon [_thread_blocked, id=28883, stack(0x000000005262d000,0x0000000052b2e000)]
    0x00002aaaba5d8800 JavaThread "http-thread-pool-80(3)" daemon [_thread_blocked, id=28882, stack(0x000000005212c000,0x000000005262d000)]
    0x00002aaab9497000 JavaThread "http-thread-pool-80(2)" daemon [_thread_blocked, id=28881, stack(0x0000000051c2b000,0x000000005212c000)]
    0x00002aaab9496000 JavaThread "http-thread-pool-80(1)" daemon [_thread_blocked, id=28880, stack(0x000000005172a000,0x0000000051c2b000)]
    0x00002aaab8976800 JavaThread "GC Daemon" daemon [_thread_blocked, id=28878, stack(0x0000000050d28000,0x0000000051229000)]
    0x00002aaab8e75000 JavaThread "RMI Reaper" [_thread_blocked, id=28877, stack(0x0000000050827000,0x0000000050d28000)]
    0x000000000ec1b000 JavaThread "RMI TCP Accept-8686" daemon [_thread_in_native, id=28876, stack(0x0000000050326000,0x0000000050827000)]
    0x000000000b4e8800 JavaThread "DestroyJavaVM" [_thread_blocked, id=28782, stack(0x00000000402e5000,0x00000000407e6000)]
    0x000000000ee68800 JavaThread "GlassFish Kernel Main Thread" [_thread_blocked, id=28875, stack(0x000000004fe25000,0x0000000050326000)]
    0x00002aaac1dc8000 JavaThread "AutoDeployer" daemon [_thread_blocked, id=28873, stack(0x000000004f423000,0x000000004f924000)]
    0x00002aaac1104800 JavaThread "DynamicReloader" daemon [_thread_blocked, id=28872, stack(0x000000004ef22000,0x000000004f423000)]
    0x00002aaab6288000 JavaThread "ContainerBackgroundProcessor[StandardEngine[glassfish-web].StandardHost[server].StandardContext[/app.ui.pages]]" daemon [_thread_blocked, id=28869, stack(0x000000004e520000,0x000000004ea21000)]
    0x00002aaab8f1d800 JavaThread "MySQL Statement Cancellation Timer" daemon [_thread_blocked, id=28868, stack(0x000000004e01f000,0x000000004e520000)]
    0x00002aaabb002000 JavaThread "Thread-33" daemon [_thread_blocked, id=28867, stack(0x000000004db1e000,0x000000004e01f000)]
    0x00002aaab6295800 JavaThread "Thread-32" daemon [_thread_blocked, id=28866, stack(0x000000004d61d000,0x000000004db1e000)]
    0x000000000e6ea000 JavaThread "Listener@12172012_012638@56" daemon [_thread_blocked, id=28865, stack(0x000000004d11c000,0x000000004d61d000)]
    0x000000000ee22000 JavaThread "Thread-31" daemon [_thread_blocked, id=28864, stack(0x000000004cc1b000,0x000000004d11c000)]
    0x00002aaab623b000 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=28862, stack(0x000000004c219000,0x000000004c71a000)]
    0x00002aaab5064800 JavaThread "deployment-jar-scanner" daemon [_thread_blocked, id=28848, stack(0x000000004b817000,0x000000004bd18000)]
    0x00002aaab7545800 JavaThread "deployment-jar-scanner" daemon [_thread_blocked, id=28847, stack(0x000000004b316000,0x000000004b817000)]
    0x000000000d00a800 JavaThread "deployment-jar-scanner" daemon [_thread_blocked, id=28846, stack(0x000000004ae15000,0x000000004b316000)]
    0x00002aaab7476800 JavaThread "ContainerBackgroundProcessor[StandardEngine[glassfish-web].StandardHost[server].StandardContext[/hello]]" daemon [_thread_blocked, id=28845, stack(0x000000004a914000,0x000000004ae15000)]
    0x00002aaab8c7a800 JavaThread "ContainerBackgroundProcessor[StandardEngine[glassfish-web]]" daemon [_thread_blocked, id=28824, stack(0x000000004a413000,0x000000004a914000)]
    0x00002aaab899d800 JavaThread "deployment-jar-scanner" daemon [_thread_blocked, id=28823, stack(0x0000000049f12000,0x000000004a413000)]
    0x000000000c57f800 JavaThread "transaction-manager" daemon [_thread_blocked, id=28819, stack(0x0000000048b0e000,0x000000004900f000)]
    0x000000000cfe0800 JavaThread "Grizzly-kernel-thread(1)" daemon [_thread_in_native, id=28818, stack(0x000000004860d000,0x0000000048b0e000)]
    0x00002aaab4343000 JavaThread "Thread-21" [_thread_blocked, id=28817, stack(0x000000004810c000,0x000000004860d000)]
    0x000000000cfdf000 JavaThread "Grizzly-kernel-thread(1)" daemon [_thread_in_native, id=28816, stack(0x0000000047c0b000,0x000000004810c000)]
    0x00002aaab4715800 JavaThread "Thread-18" [_thread_blocked, id=28815, stack(0x000000004770a000,0x0000000047c0b000)]
    0x000000000cfe1800 JavaThread "Grizzly-kernel-thread(1)" daemon [_thread_in_native, id=28814, stack(0x0000000047209000,0x000000004770a000)]
    0x000000000c88b000 JavaThread "Grizzly-kernel-thread(1)" daemon [_thread_in_native, id=28813, stack(0x0000000046d08000,0x0000000047209000)]
    0x00002aaab897e000 JavaThread "Thread-14" [_thread_blocked, id=28812, stack(0x0000000046807000,0x0000000046d08000)]
    0x000000000ce69000 JavaThread "Grizzly-kernel-thread(1)" daemon [_thread_in_native, id=28811, stack(0x0000000046306000,0x0000000046807000)]
    0x00002aaab897d000 JavaThread "Thread-9" [_thread_blocked, id=28810, stack(0x0000000045e05000,0x0000000046306000)]
    0x000000000cb96800 JavaThread "Thread-7" [_thread_blocked, id=28809, stack(0x0000000045904000,0x0000000045e05000)]
    0x00002aaab895f800 JavaThread "Thread-5" [_thread_blocked, id=28808, stack(0x0000000045403000,0x0000000045904000)]
    0x00002aaab8969000 JavaThread "pool-1-thread-1" daemon [_thread_blocked, id=28807, stack(0x0000000044f02000,0x0000000045403000)]
    0x00002aaab8641000 JavaThread "FelixStartLevel" daemon [_thread_blocked, id=28806, stack(0x0000000044500000,0x0000000044a01000)]
    0x000000000beff000 JavaThread "FelixDispatchQueue" daemon [_thread_blocked, id=28805, stack(0x0000000044a01000,0x0000000044f02000)]
    0x00002aaab419f800 JavaThread "Service Thread" daemon [_thread_blocked, id=28801, stack(0x0000000043efe000,0x00000000443ff000)]
    0x00002aaab419d800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=28800, stack(0x0000000043dfd000,0x0000000043efe000)]
  =&gt;0x00002aaab4198000 JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=28799, stack(0x0000000043cfc000,0x0000000043dfd000)]
    0x00002aaab40ee000 JavaThread "MultiThreadedHttpConnectionManager cleanup" daemon [_thread_blocked, id=28796, stack(0x00000000437fb000,0x0000000043cfc000)]
    0x00002aaab4003800 JavaThread "AD Thread Pool-Global1" daemon [_thread_blocked, id=28795, stack(0x00000000432fa000,0x00000000437fb000)]
    0x00002aaab400d800 JavaThread "AD Thread Pool-Global0" daemon [_thread_blocked, id=28794, stack(0x0000000042df9000,0x00000000432fa000)]
    0x000000000b88e000 JavaThread "AD Thread-Metric Reporter0" daemon [_thread_blocked, id=28793, stack(0x00000000428f8000,0x0000000042df9000)]
    0x000000000b857000 JavaThread "AD Thread-Config Poller" daemon [_thread_blocked, id=28792, stack(0x00000000415ec000,0x0000000041aed000)]
    0x000000000b7b3800 JavaThread "Thread-0" daemon [_thread_blocked, id=28791, stack(0x00000000410eb000,0x00000000415ec000)]
    0x000000000b5ef000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=28790, stack(0x0000000040bea000,0x00000000410eb000)]
    0x000000000b5a0000 JavaThread "Finalizer" daemon [_thread_blocked, id=28789, stack(0x00000000423f7000,0x00000000428f8000)]
    0x000000000b59e000 JavaThread "Reference Handler" daemon [_thread_blocked, id=28788, stack(0x0000000041ef6000,0x00000000423f7000)]
  
  Other Threads:
    0x000000000b596000 VMThread [stack: 0x0000000040070000,0x0000000040171000] [id=28787]
    0x00002aaab41a4000 WatcherThread [stack: 0x00000000443ff000,0x0000000044500000] [id=28803]
  
  VM state:not at safepoint (normal execution)
  
  VM Mutex/Monitor currently owned by a thread: None
  
  Heap
   PSYoungGen      total 937216K, used 6414K [0x00000007a2400000, 0x00000007e0c00000, 0x0000000800000000)
    eden space 845888K, 0% used [0x00000007a2400000,0x00000007a2a43ad8,0x00000007d5e10000)
    from space 91328K, 0% used [0x00000007db2d0000,0x00000007db2d0000,0x00000007e0c00000)
    to   space 86784K, 0% used [0x00000007d5e10000,0x00000007d5e10000,0x00000007db2d0000)
   PSOldGen        total 912576K, used 467925K [0x0000000718c00000, 0x0000000750730000, 0x00000007a2400000)
    object space 912576K, 51% used [0x0000000718c00000,0x00000007354f55a0,0x0000000750730000)
   PSPermGen       total 94720K, used 94326K [0x00000006e6c00000, 0x00000006ec880000, 0x0000000718c00000)
    object space 94720K, 99% used [0x00000006e6c00000,0x00000006ec81d9b0,0x00000006ec880000)
  
  Code Cache  [0x00002aaaaeb21000, 0x00002aaaaf8c1000, 0x00002aaab1b21000)
   total_blobs=4170 nmethods=3358 adapters=762 free_code_cache=35382Kb largest_free_block=36057856
  
  
  Memory: 4k page, physical 4043424k(265500k free), swap 4095992k(2992388k free)
  
  vm_info: Java HotSpot(TM) 64-Bit Server VM (21.0-b17) for linux-amd64 JRE (1.7.0-b147), built on Jun 27 2011 01:30:59 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8)
  
  time: Mon Dec 17 01:39:09 2012
  elapsed time: 768 seconds
  </code></pre>