JNIを使用してJavaのexiv2ライブラリ（C ++で記述）にアクセスしていますが、JNIコードで奇妙なランタイムエラーが発生します。さまざまな-Xmsおよび-Xmxオプションを使用してみましたが、効果がないようです。このコードをJDK1.7.0で実行してみたところ、同じ結果になりました。
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007ff31807757f, pid=4041, tid=140682078746368
#
# JRE version: 6.0_20-b20
# Java VM: OpenJDK 64-Bit Server VM (19.0-b09 mixed mode linux-amd64 )
# Derivative: IcedTea6 1.9.2
# Distribution: Ubuntu 10.10, package 6b20-1.9.2-0ubuntu2
# Problematic frame:
# V [libjvm.so+0x42757f]
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
# https://bugs.launchpad.net/ubuntu/+source/openjdk-6/
#
--------------- T H R E A D ---------------
Current thread (0x000000000190d000): JavaThread "main" [_thread_in_Java, id=4043, stack(0x00007ff319447000,0x00007ff319548000)]
siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000024
Registers:
...
Register to memory mapping:
...
RDX=0x00007ff3195463f8
0x00007ff3195463f8 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
RSP=0x00007ff319546270
0x00007ff319546270 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
RBP=0x00007ff319546270
0x00007ff319546270 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
RSI=0x0000000000000024
0x0000000000000024 is pointing to unknown location
RDI=0x00007ff3195463e0
0x00007ff3195463e0 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
R8 =0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
...
R10=0x00007ff319546300
0x00007ff319546300 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
R11=0x0000000000000002
0x0000000000000002 is pointing to unknown location
R12=0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
R13=0x00007ff319546560
0x00007ff319546560 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
R14=0x00007ff3195463e0
0x00007ff3195463e0 is pointing into the stack for thread: 0x000000000190d000
"main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000]
java.lang.Thread.State: RUNNABLE
...
Top of Stack: (sp=0x00007ff319546270)
...
Instructions: (pc=0x00007ff31807757f)
...
Stack: [0x00007ff319447000,0x00007ff319548000], sp=0x00007ff319546270, free space=1020k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x42757f]
V [libjvm.so+0x42866b]
V [libjvm.so+0x4275c8]
V [libjvm.so+0x4331bd]
V [libjvm.so+0x44e5c7]
C [libExiff2-binding.so+0x1f16] _ZN7JNIEnv_15CallVoidMethodAEP8_jobjectP10_jmethodIDPK6jvalue+0x40
C [libExiff2-binding.so+0x1b96] _Z8loadIPTCSt8auto_ptrIN5Exiv25ImageEEPKcP7JNIEnv_P8_jobject+0x2ba
C [libExiff2-binding.so+0x1d3f] _Z7getVarsPKcP7JNIEnv_P8_jobject+0x176
C [libExiff2-binding.so+0x1de7] Java_photo_exiv2_Exiv2MetaDataStore_impl_1loadFromExiv+0x4b
j photo.exiv2.Exiv2MetaDataStore.impl_loadFromExiv(Ljava/lang/String;Lphoto/exiv2/Exiv2MetaDataStore;)V+0
j photo.exiv2.Exiv2MetaDataStore.loadFromExiv2()V+9
j photo.exiv2.Exiv2MetaDataStore.loadData()V+1
j photo.exiv2.Exiv2MetaDataStore.<init>(Lphoto/ImageFile;)V+10
j test.Main.main([Ljava/lang/String;)V+76
v ~StubRoutines::call_stub
V [libjvm.so+0x428698]
V [libjvm.so+0x4275c8]
V [libjvm.so+0x432943]
V [libjvm.so+0x447f91]
C [java+0x3495] JavaMain+0xd75
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x00007ff2c4027800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4060, stack(0x00007ff2c9052000,0x00007ff2c9153000)]
0x00007ff2c4025000 JavaThread "CompilerThread1" daemon [_thread_blocked, id=4059, stack(0x00007ff2c9153000,0x00007ff2c9254000)]
0x00007ff2c4022000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=4058, stack(0x00007ff2c9254000,0x00007ff2c9355000)]
0x00007ff2c401f800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=4057, stack(0x00007ff2c9355000,0x00007ff2c9456000)]
0x00007ff2c4001000 JavaThread "Finalizer" daemon [_thread_blocked, id=4056, stack(0x00007ff2c994d000,0x00007ff2c9a4e000)]
0x0000000001984000 JavaThread "Reference Handler" daemon [_thread_blocked, id=4055, stack(0x00007ff2c9a4e000,0x00007ff2c9b4f000)]
=>0x000000000190d000 JavaThread "main" [_thread_in_Java, id=4043, stack(0x00007ff319447000,0x00007ff319548000)]
Other Threads:
0x000000000197d800 VMThread [stack: 0x00007ff2c9b4f000,0x00007ff2c9c50000] [id=4054]
0x00007ff2c4032000 WatcherThread [stack: 0x00007ff2c8f51000,0x00007ff2c9052000] [id=4061]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
PSYoungGen total 18432K, used 316K [0x00007ff2fed30000, 0x00007ff3001c0000, 0x00007ff313730000)
eden space 15808K, 2% used [0x00007ff2fed30000,0x00007ff2fed7f0b8,0x00007ff2ffca0000)
from space 2624K, 0% used [0x00007ff2fff30000,0x00007ff2fff30000,0x00007ff3001c0000)
to space 2624K, 0% used [0x00007ff2ffca0000,0x00007ff2ffca0000,0x00007ff2fff30000)
PSOldGen total 42240K, used 0K [0x00007ff2d5930000, 0x00007ff2d8270000, 0x00007ff2fed30000)
object space 42240K, 0% used [0x00007ff2d5930000,0x00007ff2d5930000,0x00007ff2d8270000)
PSPermGen total 21248K, used 2827K [0x00007ff2cb330000, 0x00007ff2cc7f0000, 0x00007ff2d5930000)
object space 21248K, 13% used [0x00007ff2cb330000,0x00007ff2cb5f2f60,0x00007ff2cc7f0000)
Dynamic libraries:
00400000-00409000 r-xp 00000000 08:03 141899 /usr/lib/jvm/java-6-openjdk/jre/bin/java
00608000-00609000 r--p 00008000 08:03 141899 /usr/lib/jvm/java-6-openjdk/jre/bin/java
00609000-0060a000 rw-p 00009000 08:03 141899 /usr/lib/jvm/java-6-openjdk/jre/bin/java
01904000-019ad000 rw-p 00000000 00:00 0 [heap]
...
7ff2c820c000-7ff2c8232000 r-xp 00000000 08:03 917704 /lib/libexpat.so.1.5.2
7ff2c8232000-7ff2c8432000 ---p 00026000 08:03 917704 /lib/libexpat.so.1.5.2
7ff2c8432000-7ff2c8434000 r--p 00026000 08:03 917704 /lib/libexpat.so.1.5.2
7ff2c8434000-7ff2c8435000 rw-p 00028000 08:03 917704 /lib/libexpat.so.1.5.2
7ff2c8435000-7ff2c844a000 r-xp 00000000 08:03 917708 /lib/libgcc_s.so.1
7ff2c844a000-7ff2c8649000 ---p 00015000 08:03 917708 /lib/libgcc_s.so.1
7ff2c8649000-7ff2c864a000 r--p 00014000 08:03 917708 /lib/libgcc_s.so.1
7ff2c864a000-7ff2c864b000 rw-p 00015000 08:03 917708 /lib/libgcc_s.so.1
7ff2c864b000-7ff2c8733000 r-xp 00000000 08:03 134995 /usr/lib/libstdc++.so.6.0.14
7ff2c8733000-7ff2c8932000 ---p 000e8000 08:03 134995 /usr/lib/libstdc++.so.6.0.14
7ff2c8932000-7ff2c893a000 r--p 000e7000 08:03 134995 /usr/lib/libstdc++.so.6.0.14
7ff2c893a000-7ff2c893c000 rw-p 000ef000 08:03 134995 /usr/lib/libstdc++.so.6.0.14
7ff2c893c000-7ff2c8951000 rw-p 00000000 00:00 0
7ff2c8951000-7ff2c8af3000 r-xp 00000000 08:03 134599 /usr/lib/libexiv2.so.6.0.0
7ff2c8af3000-7ff2c8cf2000 ---p 001a2000 08:03 134599 /usr/lib/libexiv2.so.6.0.0
7ff2c8cf2000-7ff2c8d0f000 r--p 001a1000 08:03 134599 /usr/lib/libexiv2.so.6.0.0
7ff2c8d0f000-7ff2c8d10000 rw-p 001be000 08:03 134599 /usr/lib/libexiv2.so.6.0.0
7ff2c8d10000-7ff2c8d23000 rw-p 00000000 00:00 0
7ff2c8d42000-7ff2c8d45000 r-xp 00000000 08:03 800718 /home/hjed/libExiff2-binding.so
7ff2c8d45000-7ff2c8f44000 ---p 00003000 08:03 800718 /home/hjed/libExiff2-binding.so
7ff2c8f44000-7ff2c8f45000 r--p 00002000 08:03 800718 /home/hjed/libExiff2-binding.so
7ff2c8f45000-7ff2c8f46000 rw-p 00003000 08:03 800718 /home/hjed/libExiff2-binding.so
7ff2c8f46000-7ff2c8f49000 r--s 0000f000 08:03 141333 /usr/lib/jvm/java-6-openjdk/jre/lib/ext/pulse-java.jar
7ff2c8f49000-7ff2c8f51000 r--s 00066000 08:03 408472 /usr/share/java/gnome-java-bridge.jar
...
7ff2ca559000-7ff2ca55b000 r--s 0001d000 08:03 141354 /usr/lib/jvm/java-6-openjdk/jre/lib/plugin.jar
7ff2ca55b000-7ff2ca560000 r--s 00044000 08:03 141353 /usr/lib/jvm/java-6-openjdk/jre/lib/netx.jar
7ff2ca560000-7ff2ca592000 rw-p 00000000 00:00 0
7ff2ca592000-7ff2ca720000 r--s 038af000 08:03 141833 /usr/lib/jvm/java-6-openjdk/jre/lib/rt.jar
...
7ff31673b000-7ff316742000 r-xp 00000000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so
7ff316742000-7ff316941000 ---p 00007000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so
7ff316941000-7ff316942000 r--p 00006000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so
7ff316942000-7ff316943000 rw-p 00007000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so
7ff316943000-7ff31694f000 r-xp 00000000 08:03 921396 /lib/libnss_files-2.12.1.so
7ff31694f000-7ff316b4e000 ---p 0000c000 08:03 921396 /lib/libnss_files-2.12.1.so
7ff316b4e000-7ff316b4f000 r--p 0000b000 08:03 921396 /lib/libnss_files-2.12.1.so
7ff316b4f000-7ff316b50000 rw-p 0000c000 08:03 921396 /lib/libnss_files-2.12.1.so
7ff316b50000-7ff316b5a000 r-xp 00000000 08:03 921398 /lib/libnss_nis-2.12.1.so
7ff316b5a000-7ff316d59000 ---p 0000a000 08:03 921398 /lib/libnss_nis-2.12.1.so
7ff316d59000-7ff316d5a000 r--p 00009000 08:03 921398 /lib/libnss_nis-2.12.1.so
7ff316d5a000-7ff316d5b000 rw-p 0000a000 08:03 921398 /lib/libnss_nis-2.12.1.so
7ff316d5b000-7ff316d63000 r-xp 00000000 08:03 921393 /lib/libnss_compat-2.12.1.so
7ff316d63000-7ff316f62000 ---p 00008000 08:03 921393 /lib/libnss_compat-2.12.1.so
7ff316f62000-7ff316f63000 r--p 00007000 08:03 921393 /lib/libnss_compat-2.12.1.so
7ff316f63000-7ff316f64000 rw-p 00008000 08:03 921393 /lib/libnss_compat-2.12.1.so
7ff316f64000-7ff316f6c000 r-xp 00000000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so
7ff316f6c000-7ff31716b000 ---p 00008000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so
7ff31716b000-7ff31716c000 r--p 00007000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so
7ff31716c000-7ff31716d000 rw-p 00008000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so
7ff31716d000-7ff317184000 r-xp 00000000 08:03 921392 /lib/libnsl-2.12.1.so
7ff317184000-7ff317383000 ---p 00017000 08:03 921392 /lib/libnsl-2.12.1.so
7ff317383000-7ff317384000 r--p 00016000 08:03 921392 /lib/libnsl-2.12.1.so
7ff317384000-7ff317385000 rw-p 00017000 08:03 921392 /lib/libnsl-2.12.1.so
7ff317385000-7ff317387000 rw-p 00000000 00:00 0
7ff317387000-7ff3173b2000 r-xp 00000000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so
7ff3173b2000-7ff3175b1000 ---p 0002b000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so
7ff3175b1000-7ff3175b2000 r--p 0002a000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so
7ff3175b2000-7ff3175b5000 rw-p 0002b000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so
7ff3175b5000-7ff3175c3000 r-xp 00000000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so
7ff3175c3000-7ff3177c2000 ---p 0000e000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so
7ff3177c2000-7ff3177c4000 r--p 0000d000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so
7ff3177c4000-7ff3177c5000 rw-p 0000f000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so
7ff3177c5000-7ff3177cc000 r-xp 00000000 08:03 921405 /lib/librt-2.12.1.so
7ff3177cc000-7ff3179cb000 ---p 00007000 08:03 921405 /lib/librt-2.12.1.so
7ff3179cb000-7ff3179cc000 r--p 00006000 08:03 921405 /lib/librt-2.12.1.so
7ff3179cc000-7ff3179cd000 rw-p 00007000 08:03 921405 /lib/librt-2.12.1.so
7ff3179cd000-7ff317a4f000 r-xp 00000000 08:03 921390 /lib/libm-2.12.1.so
7ff317a4f000-7ff317c4e000 ---p 00082000 08:03 921390 /lib/libm-2.12.1.so
7ff317c4e000-7ff317c4f000 r--p 00081000 08:03 921390 /lib/libm-2.12.1.so
7ff317c4f000-7ff317c50000 rw-p 00082000 08:03 921390 /lib/libm-2.12.1.so
7ff317c50000-7ff3184c4000 r-xp 00000000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
7ff3184c4000-7ff3186c3000 ---p 00874000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
7ff3186c3000-7ff318739000 r--p 00873000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
7ff318739000-7ff318754000 rw-p 008e9000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
7ff318754000-7ff31878d000 rw-p 00000000 00:00 0
7ff31878d000-7ff318907000 r-xp 00000000 08:03 921385 /lib/libc-2.12.1.so
7ff318907000-7ff318b06000 ---p 0017a000 08:03 921385 /lib/libc-2.12.1.so
7ff318b06000-7ff318b0a000 r--p 00179000 08:03 921385 /lib/libc-2.12.1.so
7ff318b0a000-7ff318b0b000 rw-p 0017d000 08:03 921385 /lib/libc-2.12.1.so
7ff318b0b000-7ff318b10000 rw-p 00000000 00:00 0
7ff318b10000-7ff318b12000 r-xp 00000000 08:03 921388 /lib/libdl-2.12.1.so
7ff318b12000-7ff318d12000 ---p 00002000 08:03 921388 /lib/libdl-2.12.1.so
7ff318d12000-7ff318d13000 r--p 00002000 08:03 921388 /lib/libdl-2.12.1.so
7ff318d13000-7ff318d14000 rw-p 00003000 08:03 921388 /lib/libdl-2.12.1.so
7ff318d14000-7ff318d18000 r-xp 00000000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so
7ff318d18000-7ff318f17000 ---p 00004000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so
7ff318f17000-7ff318f18000 r--p 00003000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so
7ff318f18000-7ff318f19000 rw-p 00004000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so
7ff318f19000-7ff318f31000 r-xp 00000000 08:03 921401 /lib/libpthread-2.12.1.so
7ff318f31000-7ff319130000 ---p 00018000 08:03 921401 /lib/libpthread-2.12.1.so
7ff319130000-7ff319131000 r--p 00017000 08:03 921401 /lib/libpthread-2.12.1.so
7ff319131000-7ff319132000 rw-p 00018000 08:03 921401 /lib/libpthread-2.12.1.so
7ff319132000-7ff319136000 rw-p 00000000 00:00 0
7ff319136000-7ff31914c000 r-xp 00000000 08:03 917772 /lib/libz.so.1.2.3.4
7ff31914c000-7ff31934c000 ---p 00016000 08:03 917772 /lib/libz.so.1.2.3.4
7ff31934c000-7ff31934d000 r--p 00016000 08:03 917772 /lib/libz.so.1.2.3.4
7ff31934d000-7ff31934e000 rw-p 00017000 08:03 917772 /lib/libz.so.1.2.3.4
7ff31934e000-7ff31936e000 r-xp 00000000 08:03 921379 /lib/ld-2.12.1.so
...
7ff319562000-7ff31956a000 rw-s 00000000 08:03 1966453 /tmp/hsperfdata_hjed/4041
...
7ff31956e000-7ff31956f000 r--p 00020000 08:03 921379 /lib/ld-2.12.1.so
7ff31956f000-7ff319570000 rw-p 00021000 08:03 921379 /lib/ld-2.12.1.so
7ff319570000-7ff319571000 rw-p 00000000 00:00 0
7fff0fb03000-7fff0fb24000 rw-p 00000000 00:00 0 [stack]
7fff0fbff000-7fff0fc00000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
VM Arguments:
jvm_args: -Dfile.encoding=UTF-8
java_command: test.Main
Launcher Type: SUN_STANDARD
Environment Variables:
...
Signal Handlers:
SIGSEGV: [libjvm.so+0x712700], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGBUS: [libjvm.so+0x712700], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGFPE: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGPIPE: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGXFSZ: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGILL: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGUSR2: [libjvm.so+0x5d3730], sa_mask[0]=0x00000004, sa_flags=0x10000004
SIGHUP: [libjvm.so+0x5d61a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGINT: SIG_IGN, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGTERM: [libjvm.so+0x5d61a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGQUIT: [libjvm.so+0x5d61a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
--------------- S Y S T E M ---------------
OS:Ubuntu 10.10 (maverick)
uname:Linux 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 02:41:37 UTC 2010 x86_64
libc:glibc 2.12.1 NPTL 2.12.1
rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity
load average:0.25 0.16 0.21
/proc/meminfo:
MemTotal: 4048200 kB
MemFree: 1230476 kB
Buffers: 589572 kB
Cached: 911132 kB
SwapCached: 0 kB
Active: 1321712 kB
Inactive: 1202272 kB
Active(anon): 1023852 kB
Inactive(anon): 7168 kB
Active(file): 297860 kB
Inactive(file): 1195104 kB
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SwapFree: 7065596 kB
Dirty: 632 kB
Writeback: 0 kB
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Shmem: 7728 kB
Slab: 111136 kB
SReclaimable: 66316 kB
SUnreclaim: 44820 kB
KernelStack: 3824 kB
PageTables: 27736 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 9089696 kB
Committed_AS: 2378396 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 332928 kB
VmallocChunk: 34359397884 kB
HardwareCorrupted: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
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Hugepagesize: 2048 kB
DirectMap4k: 67136 kB
DirectMap2M: 4118528 kB
CPU:total 8 (4 cores per cpu, 2 threads per core) family 6 model 26 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, ht
Memory: 4k page, physical 4048200k(1230476k free), swap 7065596k(7065596k free)
vm_info: OpenJDK 64-Bit Server VM (19.0-b09) for linux-amd64 JRE (1.6.0_20-b20), built on Dec 10 2010 19:45:55 by "buildd" with gcc 4.4.5
time: Sat Jan 1 14:12:27 2011
elapsed time: 0 seconds
Javaコードは次のとおりです。
...
public class Main {
public static void main(String[] args) {
...
ImageFile img = new ImageFile(System.getProperty("user.home") + "/PC100001.JPG");
Exiv2MetaDataStore e = new Exiv2MetaDataStore(img);
Iterator<Entry<String, String>> i = e.entrySet().iterator();
while (i.hasNext()) {
Entry<String, String> entry = i.next();
System.out.println(entry.getKey() + ":" + entry.getValue());
}
//if you switch this print statment with the while loop you get the same error.
//System.out.print(e.toString());
}
}
と
/**NB: MetaDataStore is an abstract class that extends HashMap<String,String> */
public class Exiv2MetaDataStore extends MetaDataStore{
...
private final ImageFile F;
/**
* Creates an meta data store from an ImageFile using Exiv2
* this calls loadData();
* @param f
*/
public Exiv2MetaDataStore(ImageFile f) {
F = f;
loadData();
}
...
@Override
protected void loadData() {
loadFromExiv2();
}
...
private void loadFromExiv2() {
impl_loadFromExiv(F.getAbsolutePath(), this);
}
private native void impl_loadFromExiv(String path, Exiv2MetaDataStore str);
//this method called by the C++ code
public void exiv2_reciveElement(String key, String value) {
super.put(key,value);
}
static {
Runtime.getRuntime().load("/home/hjed/libExiff2-binding.so");
}
}
C ++コード：
#include <exif.hpp>
#include <image.hpp>
#include <iptc.hpp>
#include <exiv2/exiv2.hpp>
#include <exiv2/error.hpp>
#include <iostream>
#include <iomanip>
#include <cassert>
void loadIPTC(Exiv2::Image::AutoPtr image, const char * path, JNIEnv * env, jobject obj) {
Exiv2::IptcData &iptcData = image->iptcData();
//load method
jclass cls = env->GetObjectClass(obj);
jmethodID mid = env->GetMethodID(cls, "exiv2_reciveElement", "(Ljava/lang/String;Ljava/lang/String;)V");
//is there any IPTC data AND check that method exists
if (iptcData.empty() || (mid == NULL)) {
std::string error(path);
error += ": failed loading IPTC data, there may not be any data";
} else {
Exiv2::IptcData::iterator end = iptcData.end();
for (Exiv2::IptcData::iterator md = iptcData.begin(); md != end; ++md) {
jvalue values[2];
const char* key = md->key().c_str();
values[0].l = env->NewStringUTF(key);
md->value().toString().c_str();
const char* value = md->typeName();
values[2].l = env->NewStringUTF(value);
//If I replace the code for values[2] with the commented out code I get the same error.
//const char* type = md->typeName();
//values[2].l = env->NewStringUTF(type);
env->CallVoidMethodA(obj, mid, values);
}
}
}
void getVars(const char* path, JNIEnv * env, jobject obj) {
//Load image
Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(path);
assert(image.get() != 0);
image->readMetadata();
//Load IPTC data
loadIPTC(image, path, env, obj);
}
JNIEXPORT void JNICALL Java_photo_exiv2_Exiv2MetaDataStore_impl_1loadFromExiv(JNIEnv * env, jobject obj, jstring path, jobject obj2) {
const char* path2 = env->GetStringUTFChars(path, NULL);
getVars(path2, env, obj);
env->ReleaseStringUTFChars(path, path2);
}
これに対する修正を検索しましたが、見つかりません。私はC++の使用経験があまりないので、Cコードで明らかな間違いを犯した場合は、お詫び申し上げます。
助けてくれてありがとう、
HJED
PSこれはこのサイトへの私の最初の投稿であり、表示する必要のあるコードの量がわかりませんでした。我慢できたらごめんなさい。
--------編集：以下の提案に従ってgdmバックトラックを追加します-----------
SIGSEGVでのgdmバックトレース：
#0 0x00007ffff6b0557f in JavaCallArguments::parameters() () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
#1 0x00007ffff6b0666b in JavaCalls::call_helper(JavaValue*, methodHandle*, JavaCallArguments*, Thread*) () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
#2 0x00007ffff6b055c8 in JavaCalls::call(JavaValue*, methodHandle, JavaCallArguments*, Thread*) () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
#3 0x00007ffff6b111bd in jni_invoke_nonstatic(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*) ()
from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
#4 0x00007ffff6b2c5c7 in jni_CallVoidMethodA () from /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so
#5 0x00007fffa77ccf16 in JNIEnv_::CallVoidMethodA (this=0x6131c8, obj=0x7ffff7fd3818, methodID=0x67e278, args=0x7ffff7fd3630) at /usr/lib/jvm/java-6-openjdk/include/jni.h:1063
#6 0x00007fffa77ccb96 in loadIPTC (image=..., path=0x6ca640 "/home/hjed/PC100001.JPG", env=0x6131c8, obj=0x7ffff7fd3818) at src/main.cpp:36
#7 0x00007fffa77ccd3f in getVars (path=0x6ca640 "/home/hjed/PC100001.JPG", env=0x6131c8, obj=0x7ffff7fd3818) at src/main.cpp:48
#8 0x00007fffa77ccde7 in Java_photo_exiv2_Exiv2MetaDataStore_impl_1loadFromExiv (env=0x6131c8, obj=0x7ffff7fd3818, path=0x7ffff7fd3810, obj2=0x7ffff7fd3808) at src/main.cpp:54
#9 0x00007ffff21d9cc8 in ?? ()
#10 0x0000000000000000 in ?? ()
main.cpp：54は次のとおりです。
getVars(path2, env, obj);
main.cpp：48は
loadIPTC(image, path, env, obj);
main.cpp：36は
env->CallVoidMethodA(obj, mid, values);
-------編集：-cacaoを使用します。5:15 pm（AEDT）1/1/11 ---------
上記のスタックトレースを見ると、エラーが「サーバー」仮想マシンに固有のライブラリで発生していることに気付いたので、-cacaoVMオプションを試しました。jniクラッシュの代わりに、NullPointerExceptionが発生しました。
Exception in thread "main" java.lang.NullPointerException
at test.Main.main(Main.java:29)
例外が発生している場所の周りにデバッグコードを追加し（以下を参照）、そこにNullPointerExceptionが存在することは不可能であることがわかりました。
変更されたコード：
while (i.hasNext()) {
Entry<String, String> entry = i.next();
if (entry == null) {
System.out.println("entry is null");
} else if (entry.getKey() == null || entry.getValue() == null) {
System.out.println("Key and value are null");
} else if (entry.getKey() == null) {
System.out.println("Key is null");
} else if (entry.getValue() == null) {
System.out.println("Value is null");
} else {
System.out.println(entry.getKey() + ":" + entry.getValue()); //This throws a NullPointerException.
}
}
これはおそらく同じエラーだと思いますが、処理方法が異なりますか？助けてくれてありがとう。
編集：ビットORingを||に変更 ファヴォニウスによって推測されたように