SIGSEGV in Java VM

Question

Hi,
I just wanted to try out DB XML, but somehow it doesn't like me.
I did a fresh build of dbxml 2.2.13 und Gentoo Linux and try to use the Java interface, but even before my test code get's to any DBXML related things, it fails during the creation of the Enviroment instance with the following error:
# SIGSEGV (0xb) at pc=0xa881666a, pid=1622, tid=3085343600
# Java VM: Java HotSpot(TM) Server VM (1.5.0_08-b03 mixed mode)
# Problematic frame:
# C [libdb_java-4.3.so+0x1b66a] Java_com_sleepycat_db_internal_db_1javaJNI_initDbEnvRef0+0x2a
Any idea what I'm doing wrong?
Sascha

Answer 1

Hi,
I installed all DB XML related libraries and jars in a separate directory (not under /usr/lib or /usr/local/lib) , I then set the following on the VM
-Djava.library.path: /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib
and set the LD_LIBRARY_PATH in a way that the DB XML lib directory is in front of all others.
$ ldd libdb_java-4.3.so
returns the following:
linux-gate.so.1 => (0xffffe000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb7df2000)
libc.so.6 => /lib/libc.so.6 (0xb7cd4000)
/lib/ld-linux.so.2 (0x80000000)
and
$ ldd libdbxml_java-2.2.so
linux-gate.so.1 => (0xffffe000)
libdb_cxx-4.3.so => /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/libdb_cxx-4.3.so (0xb7c33000)
libxquery-1.2.so => /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/libxquery-1.2.so (0xb7b7a000)
libpathan.so.3 => /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/libpathan.so.3 (0xb788c000)
libxerces-c.so.27 => /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/libxerces-c.so.27 (0xb74b5000)
libstdc++.so.6 => /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libstdc++.so.6 (0xb73b9000)
libm.so.6 => /lib/libm.so.6 (0xb7394000)
libc.so.6 => /lib/libc.so.6 (0xb7276000)
libgcc_s.so.1 => /usr/lib/gcc/i686-pc-linux-gnu/4.1.1/libgcc_s.so.1 (0xb726b000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb7257000)
/lib/ld-linux.so.2 (0x80000000)
Edit:
From the Java "core dump":
Dynamic libraries:
08048000-08057000 r-xp 00000000 08:02 1060514 /opt/sun-jdk-1.5.0.08/bin/java
08057000-08059000 rwxp 0000e000 08:02 1060514 /opt/sun-jdk-1.5.0.08/bin/java
08059000-0814c000 rwxp 08059000 00:00 0 [heap]
a8baf000-a8c96000 r-xp 00000000 fe:00 1427633 /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/libdb_java-4.3.so
a8c96000-a8c9a000 rwxp 000e7000 fe:00 1427633 /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/libdb_java-4.3.so
a8c9a000-a8cca000 r-xs 00000000 fe:00 1427647 /home/sascha/Development/Resources/BDB/dbxml-2.2.13/install/lib/db.jar
a8cca000-a8d8e000 r-xs 00000000 08:02 1057944 /opt/sun-jdk-1.5.0.08/jre/lib/ext/localedata.jar
a8d8e000-a8db9000 r-xs 00000000 08:02 1057942 /opt/sun-jdk-1.5.0.08/jre/lib/ext/sunpkcs11.jar
a8db9000-a8de0000 r-xs 00000000 08:02 1057940 /opt/sun-jdk-1.5.0.08/jre/lib/ext/sunjce_provider.jar
a8de0000-a8de8000 r-xs 00000000 08:02 1060516 /opt/sun-jdk-1.5.0.08/jre/lib/ext/jsk-policy.jar
It seems like the right .so is loaded by the VM.
I there something else I should try?