jpountz
commented
10 years ago The code looks good. Which release are you using and can you reproduce the error on small arrays or by replacing LZ4Factory.fastestInstance() with LZ4Factory.fastestJavaInstance()?
odaira
My environment: PandaBoard-ES, Ubuntu server, OpenJDK 1.7 - ZeroVM
Issue: I've a large byte array containing 614400 elements (640 x 480 x 2) I want to compress it and the program is frozen. When I try to kill the task, I've :
OpenJDK Zero VM warning: Exception java.lang.NullPointerException occurred dispatching signal SIGINT to handler- the VM may need to be forcibly terminated
After a while, the program automatically terminates with the error below:
A fatal error has been detected by the Java Runtime Environment:
Internal Error (os_linux_zero.cpp:285), pid=923, tid=2379707504 fatal error: caught unhandled signal 11
JRE version: 7.0_25-b30 Java VM: OpenJDK Zero VM (22.0-b10 mixed mode linux-arm ) Derivative: IcedTea 2.3.10 Distribution: Ubuntu 12.04 LTS, package 7u25-2.3.10-1ubuntu0.12.04.2 Failed to write core dump. Core dumps have been disabled. To enable core umping, try "ulimit -c unlimited" before starting Java again
An error report file with more information is saved as: /home/db/Desktop/thesis_java/hs_err_pid923.log Segmentation fault
Here is my code block:
ShortBuffer buffer = depthMD.getData().createShortBuffer(); ByteBuffer bb = ByteBuffer.allocate(sb.capacity()*2); bb.asShortBuffer().put(sb); byte[] data = new byte[bb.capacity()]; bb.get(data); // Verified that I've a clean byte array data here.
LZ4Factory factory = LZ4Factory.fastestInstance(); int decompressedLength = data.length; LZ4Compressor compressor = factory.fastCompressor(); int maxCompressedLength = compressor.maxCompressedLength(decompressedLength); byte[] compressed = new byte[maxCompressedLength]; //Next line gives that error int compressedLength = compressor.compress(data, 0,decompressedLength, compressed, 0, maxCompressedLength); System.out.println(data.length);