Bug#687683: libjmagick6-jni: jmagick crashes with assertion failure on XEN virtual host

[Benjamin Habegger]

Package: libjmagick6-jni
Version: 6.2.6-0-8+b2
Severity: important

Dear Maintainer,


The follinwg error occurs on our XEN virtualized hosts when trying to rotate
certain pcitures:

java: magick/cache-view.c:729: GetCacheViewVirtualPixels: Assertion `id <
(int) cache_view->number_threads' failed.

I reduced the program to the very least:

----------------------------------------------------------
import java.io.File;

import magick.ImageInfo;
import magick.MagickException;
import magick.MagickImage;


public class MagickPb {
	public static void main(String[] args) {
		File origFile = new File(args[0]);
		try {
			ImageInfo sourceInfo = new ImageInfo(origFile.getAbsolutePath());
			MagickImage image = new MagickImage(sourceInfo);
			image.rotateImage(270);			
		} catch (MagickException e) {
			e.printStackTrace();
		}
	}
}
----------------------------------------------------------

We tested 2 different JVM (openjdk6 and sun6) without any difference on the
result.

Running the same tests on the host environment (physcal machine) did not generate any error.

Downgrading to stable 6.2.6-0-6+b1 version corrected the problem.

I'll be happy to provide a test package including an image generating
systematically the problem (but don't know how to do it through
reportbug).

The problem is very bothersome for us as we use jmagick inside a java server
and this bug makes the whole server crash.


Cheers,
Benjamin


-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.23-xxxx-std-ipv6-64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash

Versions of packages libjmagick6-jni depends on:
ii  libc6           2.13-35
ii  libmagickcore5  8:6.7.7.10-3

libjmagick6-jni recommends no packages.

libjmagick6-jni suggests no packages.

-- no debconf information