#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x0000000000000020, pid=20719, tid=140693220591488
#
# JRE version: OpenJDK Runtime Environment (7.0_79-b14) (build 1.7.0_79-b14)
# Java VM: OpenJDK 64-Bit Server VM (24.79-b02 mixed mode linux-amd64 compressed oops)
# Derivative: IcedTea 2.5.6
# Distribution: Ubuntu 14.04 LTS, package 7u79-2.5.6-0ubuntu1.14.04.1
# Problematic frame:
# C  0x0000000000000020
#
# 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 include
# instructions on how to reproduce the bug and visit:
#   http://icedtea.classpath.org/bugzilla
# 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 (0x000000000093d800):  JavaThread "main" [_thread_in_native, id=20719, stack(0x00007fffa831b000,0x00007fffa841b000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000020

Registers:
RAX=0x0000000000001000, RBX=0x000000000112b5f0, RCX=0x00007ff5a652282d, RDX=0x0000000000001000
RSP=0x00007fffa84180f0, RBP=0x0000000000000000, RSI=0x00007ff544005000, RDI=0x0000000000000000
R8 =0x0000000000001000, R9 =0x00007fffa841823c, R10=0x0000000000000022, R11=0x0000000000000000
R12=0x0000000000000004, R13=0x0000000000000004, R14=0x00007fffa841823c, R15=0x0000000000000001
RIP=0x0000000000000020, EFLAGS=0x0000000000010217, CSGSFS=0x0000000000000033, ERR=0x0000000000000014
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00007fffa84180f0)
0x00007fffa84180f0:   000000000000000b 0000000000000001
0x00007fffa8418100:   00007fffa84385b0 00007ff5a64b0498
0x00007fffa8418110:   ffff88012ed93e80 0000000000000000
0x00007fffa8418120:   0000000000000004 0000000000000001
0x00007fffa8418130:   00007fffa8418230 00007ff5a64a593f
0x00007fffa8418140:   0000000000000fd9 00007fffa841823c
0x00007fffa8418150:   00007ff5ae66d288 00007ff5ae40da8d
0x00007fffa8418160:   000000000112b5f0 00007ff5ae0b00c3
0x00007fffa8418170:   00007fffa8418230 000000000000003a
0x00007fffa8418180:   000000000000037f 00007ff5b05ef0c0
0x00007fffa8418190:   00007ff5b0596280 0002ffff00001fa0
0x00007fffa84181a0:   0000000000000000 0000000000000000
0x00007fffa84181b0:   0000000000000000 0000000000000000
0x00007fffa84181c0:   0000000000000000 0000000000000000
0x00007fffa84181d0:   0000000000000000 0000000000000000
0x00007fffa84181e0:   0000000000000000 0000000000000000
0x00007fffa84181f0:   0000000000000000 0000000000000000
0x00007fffa8418200:   0000000000000000 0000000000000000
0x00007fffa8418210:   0000000000000000 0000000000000000
0x00007fffa8418220:   00000000000000ff 00000000000000ff
0x00007fffa8418230:   2525252525252525 2525252525252525
0x00007fffa8418240:   6f7272652d2d2120 2020203939392072
0x00007fffa8418250:   0000000000000000 0000000000000000
0x00007fffa8418260:   00000000000000ff 00000000000000ff
0x00007fffa8418270:   000000003717f7d1 0000000000000000
0x00007fffa8418280:   00000000bcc8d589 0000000000000000
0x00007fffa8418290:   0000000000000000 0000000000000000
0x00007fffa84182a0:   0000000000ff0000 0000000000000000
0x00007fffa84182b0:   0000000000000000 0000ff0000000000
0x00007fffa84182c0:   0000000000000000 ff00000000000000
0x00007fffa84182d0:   0000ff0000000000 0000000000000000
0x00007fffa84182e0:   0000000000ff0000 0000000000000000 

Instructions: (pc=0x0000000000000020)
0x0000000000000000:   
[error occurred during error reporting (printing registers, top of stack, instructions near pc), id 0xb]

Register to memory mapping:

RAX=0x0000000000001000 is an unknown value
RBX=0x000000000112b5f0 is an unknown value
RCX=0x00007ff5a652282d: __read+0x2d in /lib/x86_64-linux-gnu/libc.so.6 at 0x00007ff5a6437000
RDX=0x0000000000001000 is an unknown value
RSP=0x00007fffa84180f0 is pointing into the stack for thread: 0x000000000093d800
RBP=0x0000000000000000 is an unknown value
RSI=0x00007ff544005000 is an unknown value
RDI=0x0000000000000000 is an unknown value
R8 =0x0000000000001000 is an unknown value
R9 =0x00007fffa841823c is pointing into the stack for thread: 0x000000000093d800
R10=0x0000000000000022 is an unknown value
R11=0x0000000000000000 is an unknown value
R12=0x0000000000000004 is an unknown value
R13=0x0000000000000004 is an unknown value
R14=0x00007fffa841823c is pointing into the stack for thread: 0x000000000093d800
R15=0x0000000000000001 is an unknown value


Stack: [0x00007fffa831b000,0x00007fffa841b000],  sp=0x00007fffa84180f0,  free space=1012k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  0x0000000000000020

[error occurred during error reporting (printing native stack), id 0xb]


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

Java Threads: ( => current thread )
  0x0000000000e4f800 JavaThread "main-SharedResourceRunner" daemon [_thread_blocked, id=20736, stack(0x00007ff5915c7000,0x00007ff5916c8000)]
  0x0000000000d12000 JavaThread "AWT-XAWT" daemon [_thread_in_vm, id=20733, stack(0x00007ff592783000,0x00007ff592884000)]
  0x0000000000cfa000 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=20732, stack(0x00007ff592c94000,0x00007ff592d95000)]
  0x0000000000a23800 JavaThread "Service Thread" daemon [_thread_blocked, id=20730, stack(0x00007ff599c9d000,0x00007ff599d9e000)]
  0x0000000000a21800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=20729, stack(0x00007ff599d9e000,0x00007ff599e9f000)]
  0x0000000000a1e800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=20728, stack(0x00007ff599e9f000,0x00007ff599fa0000)]
  0x0000000000a1c800 JavaThread "Attach Listener" daemon [_thread_blocked, id=20727, stack(0x00007ff599fa0000,0x00007ff59a0a1000)]
  0x00000000009f2800 JavaThread "Finalizer" daemon [_thread_blocked, id=20726, stack(0x00007ff59a0a1000,0x00007ff59a1a2000)]
  0x00000000009f0800 JavaThread "Reference Handler" daemon [_thread_blocked, id=20725, stack(0x00007ff59a1a2000,0x00007ff59a2a3000)]
=>0x000000000093d800 JavaThread "main" [_thread_in_native, id=20719, stack(0x00007fffa831b000,0x00007fffa841b000)]

Other Threads:
  0x00000000009ec000 VMThread [stack: 0x00007ff59a2a3000,0x00007ff59a3a4000] [id=20724]
  0x0000000000a2e800 WatcherThread [stack: 0x00007ff599b9c000,0x00007ff599c9d000] [id=20731]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 PSYoungGen      total 62464K, used 16672K [0x00000000faa80000, 0x0000000100000000, 0x0000000100000000)
  eden space 54272K, 19% used [0x00000000faa80000,0x00000000fb4e6e88,0x00000000fdf80000)
  from space 8192K, 73% used [0x00000000fdf80000,0x00000000fe5612c0,0x00000000fe780000)
  to   space 8704K, 0% used [0x00000000ff780000,0x00000000ff780000,0x0000000100000000)
 ParOldGen       total 35328K, used 10290K [0x00000000f0000000, 0x00000000f2280000, 0x00000000faa80000)
  object space 35328K, 29% used [0x00000000f0000000,0x00000000f0a0cbd0,0x00000000f2280000)
 PSPermGen       total 24064K, used 23724K [0x00000000e5a00000, 0x00000000e7180000, 0x00000000f0000000)
  object space 24064K, 98% used [0x00000000e5a00000,0x00000000e712b1f8,0x00000000e7180000)

Card table byte_map: [0x00007ff5b1563000,0x00007ff5b1637000] byte_map_base: 0x00007ff5b0e36000

Polling page: 0x00007ff5b173d000

Code Cache  [0x00007ff59bad0000, 0x00007ff59bd40000, 0x00007ff59ead0000)
 total_blobs=1355 nmethods=500 adapters=809 free_code_cache=47022Kb largest_free_block=48093248

Compilation events (10 events):
Event: 8180.565 Thread 0x0000000000a21800  520             java.util.concurrent.locks.AbstractOwnableSynchronizer::getExclusiveOwnerThread (5 bytes)
Event: 8180.566 Thread 0x0000000000a21800 nmethod 520 0x00007ff59bc1d450 code [0x00007ff59bc1d580, 0x00007ff59bc1d5d8]
Event: 8233.641 Thread 0x0000000000a1e800  521             java.util.concurrent.locks.AbstractQueuedSynchronizer::setState (6 bytes)
Event: 8233.642 Thread 0x0000000000a1e800 nmethod 521 0x00007ff59bce8690 code [0x00007ff59bce87c0, 0x00007ff59bce8818]
Event: 8520.046 Thread 0x0000000000a21800  522             java.util.concurrent.locks.AbstractQueuedSynchronizer::compareAndSetState (13 bytes)
Event: 8520.047 Thread 0x0000000000a21800 nmethod 522 0x00007ff59bce8490 code [0x00007ff59bce85c0, 0x00007ff59bce8618]
Event: 8520.547 Thread 0x0000000000a1e800  523             java.util.concurrent.locks.AbstractQueuedSynchronizer::release (33 bytes)
Event: 8520.551 Thread 0x0000000000a1e800 nmethod 523 0x00007ff59bc4a550 code [0x00007ff59bc4a6a0, 0x00007ff59bc4a788]
Event: 8522.049 Thread 0x0000000000a21800  524             java.util.concurrent.locks.ReentrantLock::unlock (10 bytes)
Event: 8522.054 Thread 0x0000000000a21800 nmethod 524 0x00007ff59bc4a210 code [0x00007ff59bc4a360, 0x00007ff59bc4a448]

GC Heap History (10 events):
Event: 3.643 GC heap before
{Heap before GC invocations=3 (full 0):
 PSYoungGen      total 15872K, used 15840K [0x00000000faa80000, 0x00000000fc980000, 0x0000000100000000)
  eden space 13824K, 100% used [0x00000000faa80000,0x00000000fb800000,0x00000000fb800000)
  from space 2048K, 98% used [0x00000000fba00000,0x00000000fbbf8020,0x00000000fbc00000)
  to   space 2048K, 0% used [0x00000000fb800000,0x00000000fb800000,0x00000000fba00000)
 ParOldGen       total 35328K, used 3941K [0x00000000f0000000, 0x00000000f2280000, 0x00000000faa80000)
  object space 35328K, 11% used [0x00000000f0000000,0x00000000f03d96d8,0x00000000f2280000)
 PSPermGen       total 21504K, used 17695K [0x00000000e5a00000, 0x00000000e6f00000, 0x00000000f0000000)
  object space 21504K, 82% used [0x00000000e5a00000,0x00000000e6b47ef8,0x00000000e6f00000)
Event: 3.667 GC heap after
Heap after GC invocations=3 (full 0):
 PSYoungGen      total 15872K, used 2016K [0x00000000faa80000, 0x00000000fc980000, 0x0000000100000000)
  eden space 13824K, 0% used [0x00000000faa80000,0x00000000faa80000,0x00000000fb800000)
  from space 2048K, 98% used [0x00000000fb800000,0x00000000fb9f8020,0x00000000fba00000)
  to   space 2048K, 0% used [0x00000000fc780000,0x00000000fc780000,0x00000000fc980000)
 ParOldGen       total 35328K, used 4411K [0x00000000f0000000, 0x00000000f2280000, 0x00000000faa80000)
  object space 35328K, 12% used [0x00000000f0000000,0x00000000f044efd8,0x00000000f2280000)
 PSPermGen       total 21504K, used 17695K [0x00000000e5a00000, 0x00000000e6f00000, 0x00000000f0000000)
  object space 21504K, 82% used [0x00000000e5a00000,0x00000000e6b47ef8,0x00000000e6f00000)
}