Using with fibers

[xaha24]

Hi,
great work. But I have problems creating Java objects inside a fiber. In this case the Java process crashes. Do you know this issue? Do you need more information?
Thanks Andreas

[fresheneesz]

I'd be interested in seeing this looked into (I use fibers)

[rubenjgarcia]

Any solution on this?

I'm having the same problem using https://github.com/ybogdanov/node-sync with a Java library

[jsdevel]

do either of you get any sort of useful error output?

I'm encountering some issues which I also believe are related to Fibers. I'm not working with Fibers directly, but I'm using Meteor, so pretty much everything is running implicitly a Fiber. I've verified that my implementation of node-java works perfectly in a stand-alone node project, but as soon as I embed the same code within a Meteor project, this happens.

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f9f39dc6f3a, pid=10122, tid=140321988167552
#
# 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 2.5.5
# Distribution: Ubuntu 14.04 LTS, package 7u79-2.5.5-0ubuntu0.14.04.2
# Problematic frame:
# V  [libjvm.so+0x5f3f3a]  get_method_id(JNIEnv_*, _jclass*, char const*, char const*, bool, Thread*) [clone .isra.80]+0x7a
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/joe/projects/NetOps/.meteor/local/build/programs/server/hs_err_pid10122.log
#
# 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
#
=> Exited from signal: SIGABRT

...and here's the contents of hs_err_pid10122.log, referenced above:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f9f39dc6f3a, pid=10122, tid=140321988167552
#
# 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 2.5.5
# Distribution: Ubuntu 14.04 LTS, package 7u79-2.5.5-0ubuntu0.14.04.2
# Problematic frame:
# V  [libjvm.so+0x5f3f3a]  get_method_id(JNIEnv_*, _jclass*, char const*, char const*, bool, Thread*) [clone .isra.80]+0x7a
#
# 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
#

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

Current thread (0x00000000021e0000):  JavaThread "main" [_thread_in_vm, id=10122, stack(0x00007fff42c3e000,0x00007fff42d3e000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000000

Registers:
RAX=0x0000000002522510, RBX=0x0000000002520b00, RCX=0x0000000000000028, RDX=0x00007f9f3a5f8af6
RSP=0x00007f9f30831380, RBP=0x00007f9f308313d0, RSI=0x0000000000000028, RDI=0x0000000002522519
R8 =0x0000000000000003, R9 =0x00000000021e0000, R10=0x00007f9f413bffe0, R11=0x0000000000000000
R12=0x0000000002522510, R13=0x00000000021e0000, R14=0x00007f9f3a5f7c7d, R15=0x0000000000000000
RIP=0x00007f9f39dc6f3a, EFLAGS=0x0000000000010202, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00007f9f30831380)
0x00007f9f30831380:   0000000030831420 00007f9f3083139c
0x00007f9f30831390:   00000000021e0000 00009b7500000000
0x00007f9f308313a0:   00007f9f41e053d8 00000000021e0000
0x00007f9f308313b0:   0000000000000000 00007f9f3a5f7c7d
0x00007f9f308313c0:   00007f9f3a5f8af7 00007f9f30831538
0x00007f9f308313d0:   00007f9f30831420 00007f9f39dcc94a
0x00007f9f308313e0:   00000000021e0000 00000000021e0fc0
0x00007f9f308313f0:   00007f9f0000018e 00007f9f3a168558
0x00007f9f30831400:   00000000021e01d8 0000000000000000
0x00007f9f30831410:   00007f9f308314d0 000000000227f810
0x00007f9f30831420:   00007f9f30831470 00007f9f3a5f2b1a
0x00007f9f30831430:   00007f9f308314d0 0000000000000060
0x00007f9f30831440:   000000000227f810 00007f9f308314e0
0x00007f9f30831450:   00007f9f41e053c0 00007f9f41dec280
0x00007f9f30831460:   000000000227f810 00007f9f30831538
0x00007f9f30831470:   00007f9f30831670 00007f9f3a5f5421
0x00007f9f30831480:   00000000021c7db0 00007f9f30831608
0x00007f9f30831490:   00000000021c8a20 00007f9f308316e0
0x00007f9f308314a0:   00007f9f308314d0 00000000021e01d8
0x00007f9f308314b0:   00000000021c7db0 00007f9f4221c991
0x00007f9f308314c0:   0000000000000000 0000000000000000
0x00007f9f308314d0:   0000000000000005 0000000000000000
0x00007f9f308314e0:   00007f9f41dec2b8 00007f9f41dec0d0
0x00007f9f308314f0:   00000000021adb79 00000000021adb79
0x00007f9f30831500:   00000000021adb79 00000000021adb78
0x00007f9f30831510:   00000000021adba9 00000000021add78
0x00007f9f30831520:   00007f9f41e04de0 00007f9f00000010
0x00007f9f30831530:   00000000021adb78 00007f9f41dec2e0
0x00007f9f30831540:   0000000000000006 0000000000000000
0x00007f9f30831550:   0000000000001002 0000000000000000
0x00007f9f30831560:   0000000000000000 0000000000000000
0x00007f9f30831570:   0000000000000000 0000000000000000 

Instructions: (pc=0x00007f9f39dc6f3a)
0x00007f9f39dc6f1a:   e7 89 c6 48 89 ca e8 5b c8 2c 00 48 85 db 49 89
0x00007f9f39dc6f2a:   c4 0f 84 97 02 00 00 48 85 c0 0f 84 f6 02 00 00
0x00007f9f39dc6f3a:   49 8b 3f e8 7e 5c ff ff 84 c0 0f 85 16 03 00 00
0x00007f9f39dc6f4a:   49 8b 3f e8 ae 5b ff ff 48 85 c0 49 89 c0 0f 84 

Register to memory mapping:

RAX=0x0000000002522510 is an unknown value
RBX=0x0000000002520b00 is an unknown value
RCX=0x0000000000000028 is an unknown value
RDX=0x00007f9f3a5f8af6: <offset 0x22af6> in /home/joe/projects/NetOps/.meteor/local/isopacks/npm-container/npm/node_modules/java/build/Release/nodejavabridge_bindings.node at 0x00007f9f3a5d6000
RSP=0x00007f9f30831380 is an unknown value
RBP=0x00007f9f308313d0 is an unknown value
RSI=0x0000000000000028 is an unknown value
RDI=0x0000000002522519 is an unknown value
R8 =0x0000000000000003 is an unknown value
R9 =0x00000000021e0000 is a thread
R10=0x00007f9f413bffe0: <offset 0x3bcfe0> in /lib/x86_64-linux-gnu/libc.so.6 at 0x00007f9f41003000
R11=0x0000000000000000 is an unknown value
R12=0x0000000002522510 is an unknown value
R13=0x00000000021e0000 is a thread
R14=0x00007f9f3a5f7c7d: <offset 0x21c7d> in /home/joe/projects/NetOps/.meteor/local/isopacks/npm-container/npm/node_modules/java/build/Release/nodejavabridge_bindings.node at 0x00007f9f3a5d6000
R15=0x0000000000000000 is an unknown value


Stack: [0x00007fff42c3e000,0x00007fff42d3e000],  sp=0x00007f9f30831380,  free space=18014398106529740k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x5f3f3a]  get_method_id(JNIEnv_*, _jclass*, char const*, char const*, bool, Thread*) [clone .isra.80]+0x7a
V  [libjvm.so+0x5f994a]  jni_GetMethodID+0x7a
C  [nodejavabridge_bindings.node+0x1cb1a]  javaExceptionToString(JNIEnv_*, _jthrowable*)+0x4a
C  [nodejavabridge_bindings.node+0x1f421]  javaExceptionToV8(Java*, JNIEnv_*, _jthrowable*, std::string const&)+0x1c1
C  [nodejavabridge_bindings.node+0x1f89d]  javaExceptionToV8(Java*, JNIEnv_*, std::string const&)+0x3d
C  [nodejavabridge_bindings.node+0x15e93]  Java::findClassSync(v8::Arguments const&)+0x563
C  [node+0x331a47]
C  0x00000b3d2d10618e
C  0x00000b3d2d6c4cef
C  0x00000b3d2d6c4bd7
C  0x00000b3d2d535870
C  0x00000b3d2d5355d8
C  0x00000b3d2d1284fe
C  0x00000b3d2d5e3157
C  0x00000b3d2d1245e7
C  0x00000b3d2d1118b7
C  [node+0x35f392]
C  [node+0x35fb19]  v8::internal::Execution::Call(v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*, bool*, bool)+0x79
C  [node+0x306a1e]  v8::Function::Call(v8::Handle<v8::Object>, int, v8::Handle<v8::Value>*)+0x10e
C  [fibers.node+0x66fb]  Fiber::RunFiber(void**)+0x20b
C  [fibers.node+0x71fd]  Coroutine::trampoline(void*)+0xbd
C  [fibers.node+0x7e07]  coro_init+0x37


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

Java Threads: ( => current thread )
  0x00000000025f5000 JavaThread "Service Thread" daemon [_thread_blocked, id=10151, stack(0x00007f9f30a34000,0x00007f9f30b35000)]
  0x00000000025f2800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=10150, stack(0x00007f9f30b35000,0x00007f9f30c36000)]
  0x00000000025f0800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=10149, stack(0x00007f9f30c36000,0x00007f9f30d37000)]
  0x00000000022af800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=10148, stack(0x00007f9f38033000,0x00007f9f38134000)]
  0x0000000002284800 JavaThread "Finalizer" daemon [_thread_blocked, id=10147, stack(0x00007f9f38134000,0x00007f9f38235000)]
  0x0000000002282800 JavaThread "Reference Handler" daemon [_thread_blocked, id=10146, stack(0x00007f9f38235000,0x00007f9f38336000)]
=>0x00000000021e0000 JavaThread "main" [_thread_in_vm, id=10122, stack(0x00007fff42c3e000,0x00007fff42d3e000)]

Other Threads:
  0x000000000227e000 VMThread [stack: 0x00007f9f38336000,0x00007f9f38437000] [id=10145]
  0x0000000002600000 WatcherThread [stack: 0x00007f9f30933000,0x00007f9f30a34000] [id=10152]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation   total 4800K, used 343K [0x00000000d6800000, 0x00000000d6d30000, 0x00000000e0e00000)
  eden space 4288K,   8% used [0x00000000d6800000, 0x00000000d6855eb0, 0x00000000d6c30000)
  from space 512K,   0% used [0x00000000d6c30000, 0x00000000d6c30000, 0x00000000d6cb0000)
  to   space 512K,   0% used [0x00000000d6cb0000, 0x00000000d6cb0000, 0x00000000d6d30000)
 tenured generation   total 10624K, used 0K [0x00000000e0e00000, 0x00000000e1860000, 0x00000000f5a00000)
   the space 10624K,   0% used [0x00000000e0e00000, 0x00000000e0e00000, 0x00000000e0e00200, 0x00000000e1860000)
 compacting perm gen  total 21248K, used 2301K [0x00000000f5a00000, 0x00000000f6ec0000, 0x0000000100000000)
   the space 21248K,  10% used [0x00000000f5a00000, 0x00000000f5c3f450, 0x00000000f5c3f600, 0x00000000f6ec0000)
No shared spaces configured.

Card table byte_map: [0x00007f9f385e8000,0x00007f9f38735000] byte_map_base: 0x00007f9f37f34000

Polling page: 0x00007f9f42431000

Code Cache  [0x00007f9f31000000, 0x00007f9f31270000, 0x00007f9f34000000)
 total_blobs=155 nmethods=0 adapters=125 free_code_cache=48779Kb largest_free_block=49950592

Compilation events (0 events):
No events

GC Heap History (0 events):
No events

Deoptimization events (0 events):
No events

Internal exceptions (3 events):
Event: 0.018 Thread 0x00000000021e0000 Threw 0x00000000d680f250 at /build/buildd/openjdk-7-7u79-2.5.5/build/openjdk/hotspot/src/share/vm/prims/jni.cpp:3995
Event: 2.076 Thread 0x00000000021e0000 Threw 0x00000000d6842780 at /build/buildd/openjdk-7-7u79-2.5.5/build/openjdk/hotspot/src/share/vm/runtime/javaCalls.cpp:398
Event: 2.076 Thread 0x00000000021e0000 Threw 0x00000000d6842940 at /build/buildd/openjdk-7-7u79-2.5.5/build/openjdk/hotspot/src/share/vm/runtime/javaCalls.cpp:398

Events (10 events):
Event: 0.036 loading class 0x000000000252a830
Event: 0.036 loading class 0x000000000252a830 done
Event: 0.036 loading class 0x0000000002548b70
Event: 0.036 loading class 0x0000000002548b70 done
Event: 0.036 loading class 0x000000000251ecb0
Event: 0.036 loading class 0x000000000251ecb0 done
Event: 0.036 loading class 0x000000000251f6a0
Event: 0.036 loading class 0x000000000251f6a0 done
Event: 0.037 loading class 0x000000000255a1b0
Event: 0.037 loading class 0x000000000255a1b0 done


Dynamic libraries:
00400000-00d11000 r-xp 00000000 fc:00 22458                              /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/bin/node
00f10000-00f11000 r-xp 00910000 fc:00 22458                              /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/bin/node
00f11000-00f28000 rwxp 00911000 fc:00 22458                              /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/bin/node
00f28000-00f31000 rwxp 00000000 00:00 0 
02154000-02812000 rwxp 00000000 00:00 0                                  [heap]
d6800000-d6d30000 rwxp 00000000 00:00 0 
d6d30000-e0e00000 rwxp 00000000 00:00 0 
e0e00000-e1860000 rwxp 00000000 00:00 0 
e1860000-f5a00000 rwxp 00000000 00:00 0 
f5a00000-f6ec0000 rwxp 00000000 00:00 0 
f6ec0000-100000000 rwxp 00000000 00:00 0 
516bd700000-516bd800000 rwxp 00000000 00:00 0 
5266cc00000-5266cd00000 rwxp 00000000 00:00 0 
a799b32f000-a799b72f000 rwxp 00000000 00:00 0 
b3d2d061000-b3d2d100000 ---p 00000000 00:00 0 
b3d2d100000-b3d2d105000 rwxp 00000000 00:00 0 
b3d2d105000-b3d2d106000 ---p 00000000 00:00 0 
b3d2d106000-b3d2d1ff000 rwxp 00000000 00:00 0 
b3d2d1ff000-b3d2d200000 ---p 00000000 00:00 0 
b3d2d200000-b3d2d205000 rwxp 00000000 00:00 0 
b3d2d205000-b3d2d206000 ---p 00000000 00:00 0 
b3d2d206000-b3d2d2ff000 rwxp 00000000 00:00 0 
b3d2d2ff000-b3d2d400000 ---p 00000000 00:00 0 
b3d2d400000-b3d2d405000 rwxp 00000000 00:00 0 
b3d2d405000-b3d2d406000 ---p 00000000 00:00 0 
b3d2d406000-b3d2d4ff000 rwxp 00000000 00:00 0 
b3d2d4ff000-b3d2d500000 ---p 00000000 00:00 0 
b3d2d500000-b3d2d505000 rwxp 00000000 00:00 0 
b3d2d505000-b3d2d506000 ---p 00000000 00:00 0 
b3d2d506000-b3d2d5ff000 rwxp 00000000 00:00 0 
b3d2d5ff000-b3d2d600000 ---p 00000000 00:00 0 
b3d2d600000-b3d2d605000 rwxp 00000000 00:00 0 
b3d2d605000-b3d2d606000 ---p 00000000 00:00 0 
b3d2d606000-b3d2d6ff000 rwxp 00000000 00:00 0 
b3d2d6ff000-b3d4d061000 ---p 00000000 00:00 0 
b4098700000-b4098800000 rwxp 00000000 00:00 0 
c2a14f00000-c2a15000000 rwxp 00000000 00:00 0 
c7624900000-c7624a00000 rwxp 00000000 00:00 0 
d4d6b782000-d4d6b783000 r-xp 00000000 00:00 0 
133486300000-133486400000 rwxp 00000000 00:00 0 
1581efd00000-1581efd25000 rwxp 00000000 00:00 0 
15abdcfa9000-15abdcfc0000 ---p 00000000 00:00 0 
15abdcfc0000-15abdcfe0000 rwxp 00000000 00:00 0 
15abdcfe0000-15abdd009000 ---p 00000000 00:00 0 
1a38f3800000-1a38f3900000 rwxp 00000000 00:00 0 
1a9c83a00000-1a9c83b00000 rwxp 00000000 00:00 0 
1ee2e9100000-1ee2e9200000 rwxp 00000000 00:00 0 
1fafe45cc000-1fafe45cd000 r-xp 00000000 00:00 0 
22203af00000-22203af35000 rwxp 00000000 00:00 0 
22b44a100000-22b44a185000 rwxp 00000000 00:00 0 
22c87d000000-22c87d100000 rwxp 00000000 00:00 0 
23e569db5000-23e569db6000 r-xp 00000000 00:00 0 
2a7118a21000-2a7118a22000 r-xp 00000000 00:00 0 
2c71d9500000-2c71d9600000 rwxp 00000000 00:00 0 
2c8c38900000-2c8c38a00000 rwxp 00000000 00:00 0 
2cee18400000-2cee18500000 rwxp 00000000 00:00 0 
2d7979800000-2d7979900000 rwxp 00000000 00:00 0 
2fbb5aa00000-2fbb5ab00000 rwxp 00000000 00:00 0 
317caed4b000-317caed4c000 r-xp 00000000 00:00 0 
33b46e900000-33b46e925000 rwxp 00000000 00:00 0 
346abd200000-346abd300000 rwxp 00000000 00:00 0 
3482593e3000-3482595e3000 rwxp 00000000 00:00 0 
365fabf00000-365fac000000 rwxp 00000000 00:00 0 
3989f0000000-3989f1800000 rwxp 00000000 00:00 0 
3989f1800000-3989f2000000 rwxp 00000000 00:00 0 
39fd4f000000-39fd4f100000 rwxp 00000000 00:00 0 
3c052a300000-3c052a400000 rwxp 00000000 00:00 0 
3e263b400000-3e263b500000 rwxp 00000000 00:00 0 
3f9087400000-3f9087500000 rwxp 00000000 00:00 0 
7f9f14000000-7f9f14021000 rwxp 00000000 00:00 0 
7f9f14021000-7f9f18000000 ---p 00000000 00:00 0 
7f9f1c000000-7f9f1c021000 rwxp 00000000 00:00 0 
7f9f1c021000-7f9f20000000 ---p 00000000 00:00 0 
7f9f20000000-7f9f20021000 rwxp 00000000 00:00 0 
7f9f20021000-7f9f24000000 ---p 00000000 00:00 0 
7f9f24000000-7f9f24021000 rwxp 00000000 00:00 0 
7f9f24021000-7f9f28000000 ---p 00000000 00:00 0 
7f9f28000000-7f9f28021000 rwxp 00000000 00:00 0 
7f9f28021000-7f9f2c000000 ---p 00000000 00:00 0 
7f9f2c000000-7f9f2c021000 rwxp 00000000 00:00 0 
7f9f2c021000-7f9f30000000 ---p 00000000 00:00 0 
7f9f305d0000-7f9f30731000 rwxp 00000000 00:00 0 
7f9f30731000-7f9f30732000 ---p 00000000 00:00 0 
7f9f30732000-7f9f30832000 rwxp 00000000 00:00 0                          [stack:10122]
7f9f30832000-7f9f30833000 ---p 00000000 00:00 0 
7f9f30833000-7f9f30933000 rwxp 00000000 00:00 0 
7f9f30933000-7f9f30934000 ---p 00000000 00:00 0 
7f9f30934000-7f9f30a34000 rwxp 00000000 00:00 0                          [stack:10152]
7f9f30a34000-7f9f30a37000 ---p 00000000 00:00 0 
7f9f30a37000-7f9f30b35000 rwxp 00000000 00:00 0                          [stack:10151]
7f9f30b35000-7f9f30b38000 ---p 00000000 00:00 0 
7f9f30b38000-7f9f30c36000 rwxp 00000000 00:00 0                          [stack:10150]
7f9f30c36000-7f9f30c39000 ---p 00000000 00:00 0 
7f9f30c39000-7f9f30d37000 rwxp 00000000 00:00 0                          [stack:10149]
7f9f30d37000-7f9f31000000 r-xp 00000000 fc:00 268652                     /usr/lib/locale/locale-archive
7f9f31000000-7f9f31270000 rwxp 00000000 00:00 0 
7f9f31270000-7f9f34021000 rwxp 00000000 00:00 0 
7f9f34021000-7f9f38000000 ---p 00000000 00:00 0 
7f9f38033000-7f9f38036000 ---p 00000000 00:00 0 
7f9f38036000-7f9f38134000 rwxp 00000000 00:00 0                          [stack:10148]
7f9f38134000-7f9f38137000 ---p 00000000 00:00 0 
7f9f38137000-7f9f38235000 rwxp 00000000 00:00 0                          [stack:10147]
7f9f38235000-7f9f38238000 ---p 00000000 00:00 0 
7f9f38238000-7f9f38336000 rwxp 00000000 00:00 0                          [stack:10146]
7f9f38336000-7f9f38337000 ---p 00000000 00:00 0 
7f9f38337000-7f9f38437000 rwxp 00000000 00:00 0                          [stack:10145]
7f9f38437000-7f9f385e8000 r-xs 01d27000 fc:00 292854                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar
7f9f385e8000-7f9f385eb000 rwxp 00000000 00:00 0 
7f9f385eb000-7f9f3863b000 rwxp 00000000 00:00 0 
7f9f3863b000-7f9f38641000 rwxp 00000000 00:00 0 
7f9f38641000-7f9f386e1000 rwxp 00000000 00:00 0 
7f9f386e1000-7f9f386ec000 rwxp 00000000 00:00 0 
7f9f386ec000-7f9f38734000 rwxp 00000000 00:00 0 
7f9f38734000-7f9f38735000 rwxp 00000000 00:00 0 
7f9f38735000-7f9f3874d000 r-xp 00000000 fc:00 298                        /lib/x86_64-linux-gnu/libz.so.1.2.8
7f9f3874d000-7f9f3894c000 ---p 00018000 fc:00 298                        /lib/x86_64-linux-gnu/libz.so.1.2.8
7f9f3894c000-7f9f3894d000 r-xp 00017000 fc:00 298                        /lib/x86_64-linux-gnu/libz.so.1.2.8
7f9f3894d000-7f9f3894e000 rwxp 00018000 fc:00 298                        /lib/x86_64-linux-gnu/libz.so.1.2.8
7f9f3894e000-7f9f38956000 r-xp 00000000 fc:00 292831                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libzip.so
7f9f38956000-7f9f38b55000 ---p 00008000 fc:00 292831                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libzip.so
7f9f38b55000-7f9f38b56000 r-xp 00007000 fc:00 292831                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libzip.so
7f9f38b56000-7f9f38b57000 rwxp 00008000 fc:00 292831                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libzip.so
7f9f38b57000-7f9f38b62000 r-xp 00000000 fc:00 494                        /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f9f38b62000-7f9f38d61000 ---p 0000b000 fc:00 494                        /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f9f38d61000-7f9f38d62000 r-xp 0000a000 fc:00 494                        /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f9f38d62000-7f9f38d63000 rwxp 0000b000 fc:00 494                        /lib/x86_64-linux-gnu/libnss_files-2.19.so
7f9f38d63000-7f9f38d6e000 r-xp 00000000 fc:00 1399                       /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f9f38d6e000-7f9f38f6d000 ---p 0000b000 fc:00 1399                       /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f9f38f6d000-7f9f38f6e000 r-xp 0000a000 fc:00 1399                       /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f9f38f6e000-7f9f38f6f000 rwxp 0000b000 fc:00 1399                       /lib/x86_64-linux-gnu/libnss_nis-2.19.so
7f9f38f6f000-7f9f38f86000 r-xp 00000000 fc:00 1207                       /lib/x86_64-linux-gnu/libnsl-2.19.so
7f9f38f86000-7f9f39185000 ---p 00017000 fc:00 1207                       /lib/x86_64-linux-gnu/libnsl-2.19.so
7f9f39185000-7f9f39186000 r-xp 00016000 fc:00 1207                       /lib/x86_64-linux-gnu/libnsl-2.19.so
7f9f39186000-7f9f39187000 rwxp 00017000 fc:00 1207                       /lib/x86_64-linux-gnu/libnsl-2.19.so
7f9f39187000-7f9f39189000 rwxp 00000000 00:00 0 
7f9f39189000-7f9f39192000 r-xp 00000000 fc:00 1206                       /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f9f39192000-7f9f39391000 ---p 00009000 fc:00 1206                       /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f9f39391000-7f9f39392000 r-xp 00008000 fc:00 1206                       /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f9f39392000-7f9f39393000 rwxp 00009000 fc:00 1206                       /lib/x86_64-linux-gnu/libnss_compat-2.19.so
7f9f39393000-7f9f393be000 r-xp 00000000 fc:00 292847                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libjava.so
7f9f393be000-7f9f395be000 ---p 0002b000 fc:00 292847                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libjava.so
7f9f395be000-7f9f395bf000 r-xp 0002b000 fc:00 292847                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libjava.so
7f9f395bf000-7f9f395c1000 rwxp 0002c000 fc:00 292847                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libjava.so
7f9f395c1000-7f9f395d1000 r-xp 00000000 fc:00 292844                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libverify.so
7f9f395d1000-7f9f397d0000 ---p 00010000 fc:00 292844                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libverify.so
7f9f397d0000-7f9f397d2000 r-xp 0000f000 fc:00 292844                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libverify.so
7f9f397d2000-7f9f397d3000 rwxp 00011000 fc:00 292844                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/libverify.so
7f9f397d3000-7f9f3a2eb000 r-xp 00000000 fc:00 292852                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so
7f9f3a2eb000-7f9f3a4eb000 ---p 00b18000 fc:00 292852                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so
7f9f3a4eb000-7f9f3a585000 r-xp 00b18000 fc:00 292852                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so
7f9f3a585000-7f9f3a5a8000 rwxp 00bb2000 fc:00 292852                     /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so
7f9f3a5a8000-7f9f3a5d6000 rwxp 00000000 00:00 0 
7f9f3a5d6000-7f9f3a5fc000 r-xp 00000000 fc:00 40684                      /home/joe/projects/NetOps/.meteor/local/isopacks/npm-container/npm/node_modules/java/build/Release/nodejavabridge_bindings.node
7f9f3a5fc000-7f9f3a7fb000 ---p 00026000 fc:00 40684                      /home/joe/projects/NetOps/.meteor/local/isopacks/npm-container/npm/node_modules/java/build/Release/nodejavabridge_bindings.node
7f9f3a7fb000-7f9f3a7fc000 r-xp 00025000 fc:00 40684                      /home/joe/projects/NetOps/.meteor/local/isopacks/npm-container/npm/node_modules/java/build/Release/nodejavabridge_bindings.node
7f9f3a7fc000-7f9f3a7fd000 rwxp 00026000 fc:00 40684                      /home/joe/projects/NetOps/.meteor/local/isopacks/npm-container/npm/node_modules/java/build/Release/nodejavabridge_bindings.node
7f9f3a7fd000-7f9f3a7fe000 ---p 00000000 00:00 0 
7f9f3a7fe000-7f9f3affe000 rwxp 00000000 00:00 0                          [stack:10128]
7f9f3affe000-7f9f3afff000 ---p 00000000 00:00 0 
7f9f3afff000-7f9f3b7ff000 rwxp 00000000 00:00 0                          [stack:10127]
7f9f3b7ff000-7f9f3b800000 ---p 00000000 00:00 0 
7f9f3b800000-7f9f3c000000 rwxp 00000000 00:00 0                          [stack:10126]
7f9f3c000000-7f9f3c021000 rwxp 00000000 00:00 0 
7f9f3c021000-7f9f40000000 ---p 00000000 00:00 0 
7f9f40031000-7f9f4003c000 rwxp 00000000 00:00 0 
7f9f4003c000-7f9f40085000 rwxp 00000000 00:00 0 
7f9f40085000-7f9f4008b000 rwxp 00000000 00:00 0 
7f9f4008b000-7f9f4012c000 rwxp 00000000 00:00 0 
7f9f4012c000-7f9f40136000 rwxp 00000000 00:00 0 
7f9f40136000-7f9f401ec000 rwxp 00000000 00:00 0 
7f9f401ec000-7f9f401f4000 r-xp 00000000 fc:00 35631                      /home/joe/.meteor/packages/npm-bcrypt/.0.7.8_2.2iw4ya++os.linux.x86_64+web.browser+web.cordova/npm/node_modules/bcrypt/build/Release/bcrypt_lib.node
7f9f401f4000-7f9f403f3000 ---p 00008000 fc:00 35631                      /home/joe/.meteor/packages/npm-bcrypt/.0.7.8_2.2iw4ya++os.linux.x86_64+web.browser+web.cordova/npm/node_modules/bcrypt/build/Release/bcrypt_lib.node
7f9f403f3000-7f9f403f4000 r-xp 00007000 fc:00 35631                      /home/joe/.meteor/packages/npm-bcrypt/.0.7.8_2.2iw4ya++os.linux.x86_64+web.browser+web.cordova/npm/node_modules/bcrypt/build/Release/bcrypt_lib.node
7f9f403f4000-7f9f403f5000 rwxp 00008000 fc:00 35631                      /home/joe/.meteor/packages/npm-bcrypt/.0.7.8_2.2iw4ya++os.linux.x86_64+web.browser+web.cordova/npm/node_modules/bcrypt/build/Release/bcrypt_lib.node
7f9f403f5000-7f9f403f6000 ---p 00000000 00:00 0 
7f9f403f6000-7f9f404f6000 rwxp 00000000 00:00 0 
7f9f404f6000-7f9f404f7000 ---p 00000000 00:00 0 
7f9f404f7000-7f9f405f7000 rwxp 00000000 00:00 0 
7f9f405f7000-7f9f405f8000 ---p 00000000 00:00 0 
7f9f405f8000-7f9f40df8000 rwxp 00000000 00:00 0                          [stack:10125]
7f9f40df8000-7f9f40e02000 r-xp 00000000 fc:00 31042                      /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/server-lib/node_modules/fibers/bin/linux-x64-v8-3.14/fibers.node
7f9f40e02000-7f9f41001000 ---p 0000a000 fc:00 31042                      /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/server-lib/node_modules/fibers/bin/linux-x64-v8-3.14/fibers.node
7f9f41001000-7f9f41002000 r-xp 00009000 fc:00 31042                      /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/server-lib/node_modules/fibers/bin/linux-x64-v8-3.14/fibers.node
7f9f41002000-7f9f41003000 rwxp 0000a000 fc:00 31042                      /home/joe/.meteor/packages/meteor-tool/.1.1.3.4sddkj++os.linux.x86_64+web.browser+web.cordova/mt-os.linux.x86_64/dev_bundle/server-lib/node_modules/fibers/bin/linux-x64-v8-3.14/fibers.node
7f9f41003000-7f9f411be000 r-xp 00000000 fc:00 1259                       /lib/x86_64-linux-gnu/libc-2.19.so
7f9f411be000-7f9f413bd000 ---p 001bb000 fc:00 1259                       /lib/x86_64-linux-gnu/libc-2.19.so
7f9f413bd000-7f9f413c1000 r-xp 001ba000 fc:00 1259                       /lib/x86_64-linux-gnu/libc-2.19.so
7f9f413c1000-7f9f413c3000 rwxp 001be000 fc:00 1259                       /lib/x86_64-linux-gnu/libc-2.19.so
7f9f413c3000-7f9f413c8000 rwxp 00000000 00:00 0 
7f9f413c8000-7f9f413e1000 r-xp 00000000 fc:00 1260                       /lib/x86_64-linux-gnu/libpthread-2.19.so
7f9f413e1000-7f9f415e0000 ---p 00019000 fc:00 1260                       /lib/x86_64-linux-gnu/libpthread-2.19.so
7f9f415e0000-7f9f415e1000 r-xp 00018000 fc:00 1260                       /lib/x86_64-linux-gnu/libpthread-2.19.so
7f9f415e1000-7f9f415e2000 rwxp 00019000 fc:00 1260                       /lib/x86_64-linux-gnu/libpthread-2.19.so
7f9f415e2000-7f9f415e6000 rwxp 00000000 00:00 0 
7f9f415e6000-7f9f415fc000 r-xp 00000000 fc:00 204                        /lib/x86_64-linux-gnu/libgcc_s.so.1
7f9f415fc000-7f9f417fb000 ---p 00016000 fc:00 204                        /lib/x86_64-linux-gnu/libgcc_s.so.1
7f9f417fb000-7f9f417fc000 rwxp 00015000 fc:00 204                        /lib/x86_64-linux-gnu/libgcc_s.so.1
7f9f417fc000-7f9f41901000 r-xp 00000000 fc:00 476                        /lib/x86_64-linux-gnu/libm-2.19.so
7f9f41901000-7f9f41b00000 ---p 00105000 fc:00 476                        /lib/x86_64-linux-gnu/libm-2.19.so
7f9f41b00000-7f9f41b01000 r-xp 00104000 fc:00 476                        /lib/x86_64-linux-gnu/libm-2.19.so
7f9f41b01000-7f9f41b02000 rwxp 00105000 fc:00 476                        /lib/x86_64-linux-gnu/libm-2.19.so
7f9f41b02000-7f9f41be8000 r-xp 00000000 fc:00 261769                     /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f9f41be8000-7f9f41de7000 ---p 000e6000 fc:00 261769                     /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f9f41de7000-7f9f41def000 r-xp 000e5000 fc:00 261769                     /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f9f41def000-7f9f41df1000 rwxp 000ed000 fc:00 261769                     /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19
7f9f41df1000-7f9f41e06000 rwxp 00000000 00:00 0 
7f9f41e06000-7f9f41e0d000 r-xp 00000000 fc:00 1396                       /lib/x86_64-linux-gnu/librt-2.19.so
7f9f41e0d000-7f9f4200c000 ---p 00007000 fc:00 1396                       /lib/x86_64-linux-gnu/librt-2.19.so
7f9f4200c000-7f9f4200d000 r-xp 00006000 fc:00 1396                       /lib/x86_64-linux-gnu/librt-2.19.so
7f9f4200d000-7f9f4200e000 rwxp 00007000 fc:00 1396                       /lib/x86_64-linux-gnu/librt-2.19.so
7f9f4200e000-7f9f42011000 r-xp 00000000 fc:00 594                        /lib/x86_64-linux-gnu/libdl-2.19.so
7f9f42011000-7f9f42210000 ---p 00003000 fc:00 594                        /lib/x86_64-linux-gnu/libdl-2.19.so
7f9f42210000-7f9f42211000 r-xp 00002000 fc:00 594                        /lib/x86_64-linux-gnu/libdl-2.19.so
7f9f42211000-7f9f42212000 rwxp 00003000 fc:00 594                        /lib/x86_64-linux-gnu/libdl-2.19.so
7f9f42212000-7f9f42235000 r-xp 00000000 fc:00 1209                       /lib/x86_64-linux-gnu/ld-2.19.so
7f9f42288000-7f9f42290000 rwxs 00000000 fc:00 288684                     /tmp/hsperfdata_joe/10122
7f9f42290000-7f9f42291000 ---p 00000000 00:00 0 
7f9f42291000-7f9f42412000 rwxp 00000000 00:00 0 
7f9f42412000-7f9f42413000 ---p 00000000 00:00 0 
7f9f42413000-7f9f42429000 rwxp 00000000 00:00 0                          [stack:10123]
7f9f4242d000-7f9f42431000 rwxp 00000000 00:00 0 
7f9f42431000-7f9f42432000 r-xp 00000000 00:00 0 
7f9f42432000-7f9f42434000 rwxp 00000000 00:00 0 
7f9f42434000-7f9f42435000 r-xp 00022000 fc:00 1209                       /lib/x86_64-linux-gnu/ld-2.19.so
7f9f42435000-7f9f42436000 rwxp 00023000 fc:00 1209                       /lib/x86_64-linux-gnu/ld-2.19.so
7f9f42436000-7f9f42437000 rwxp 00000000 00:00 0 
7fff42c3e000-7fff42c41000 ---p 00000000 00:00 0 
7fff42c42000-7fff42d3e000 rwxp 00000000 00:00 0 
7fff42dfc000-7fff42dfe000 r-xp 00000000 00:00 0                          [vdso]
7fff42dfe000-7fff42e00000 r--p 00000000 00:00 0                          [vvar]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]

VM Arguments:
java_command: <unknown>
Launcher Type: generic

Environment Variables:
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server
SHELL=/bin/bash

Signal Handlers:
SIGSEGV: [libjvm.so+0x94b9a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGBUS: [libjvm.so+0x94b9a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGFPE: [libjvm.so+0x7c3880], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGPIPE: [libjvm.so+0x7c3880], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGXFSZ: [libjvm.so+0x7c3880], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGILL: [libjvm.so+0x7c3880], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGUSR1: [node+0x6112f0], sa_mask[0]=0x7ffbfeff, sa_flags=0x00000000
SIGUSR2: [libjvm.so+0x7c3720], sa_mask[0]=0x00000000, sa_flags=0x10000004
SIGHUP: [libjvm.so+0x7c3900], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGINT: [libjvm.so+0x7c3900], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGTERM: [libjvm.so+0x7c3900], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGQUIT: [libjvm.so+0x7c3900], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGTRAP: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000


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

OS:Ubuntu 14.04 (trusty)
uname:Linux 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64
libc:glibc 2.19 NPTL 2.19 
rlimit: STACK 8192k, CORE 0k, NPROC 3887, NOFILE 4096, AS infinity
load average:0.06 0.09 0.06

/proc/meminfo:
MemTotal:        1017576 kB
MemFree:          259936 kB
MemAvailable:     391004 kB
Buffers:           10432 kB
Cached:           220100 kB
SwapCached:         2924 kB
Active:           675832 kB
Inactive:          19760 kB
Active(anon):     464248 kB
Inactive(anon):      912 kB
Active(file):     211584 kB
Inactive(file):    18848 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       1044476 kB
SwapFree:        1027992 kB
Dirty:             20084 kB
Writeback:             0 kB
AnonPages:        464548 kB
Mapped:            59544 kB
Shmem:               168 kB
Slab:              36212 kB
SReclaimable:      26520 kB
SUnreclaim:         9692 kB
KernelStack:        2608 kB
PageTables:         6108 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     1553264 kB
Committed_AS:    1300724 kB
VmallocTotal:   34359738367 kB
VmallocUsed:        5796 kB
VmallocChunk:   34359726340 kB
HardwareCorrupted:     0 kB
AnonHugePages:    114688 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       32704 kB
DirectMap2M:     1015808 kB


CPU:total 1 (1 cores per cpu, 1 threads per core) family 6 model 60 stepping 3, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, tsc

/proc/cpuinfo:
processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 60
model name  : Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
stepping    : 3
microcode   : 0x19
cpu MHz     : 3596.999
cache size  : 6144 KB
physical id : 0
siblings    : 1
core id     : 0
cpu cores   : 1
apicid      : 0
initial apicid  : 0
fpu     : yes
fpu_exception   : yes
cpuid level : 5
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx rdtscp lm constant_tsc rep_good nopl pni monitor ssse3 lahf_lm
bogomips    : 7193.99
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:



Memory: 4k page, physical 1017576k(259936k free), swap 1044476k(1027992k free)

vm_info: OpenJDK 64-Bit Server VM (24.79-b02) for linux-amd64 JRE (1.7.0_79-b14), built on Apr 16 2015 08:21:58 by "buildd" with gcc 4.8.2

time: Fri Jul 24 01:16:05 2015
elapsed time: 2 seconds

[Raynes]

I tried everything in my power to understand why this happens, but I gave up. I switched my project to co, which isn't exactly as pretty as fibers/node-sync but is pretty close, more explicit, and uses standard JS features.