If the problem follows the image, then it's likely some part of the image that's been corrupted. The guest OS's kernel or libc are suspect, as is the perl installation.

Try comparing the kernel, the perl executable, the C library, and libraries used by perl between the working image and non-working image a little deeper. In situations where file corruption is suspected du, cksum, md5sum, and diff are some tools to verify both sets of files are actually identical.

One way to speed this up is to create a tar file of the directories you suspect on each machine and compare the tar files. If the images are really identical then the tar files made from the same directories will be identical as well.

In reply to Re: Non-deterministic behaviour with simple array initialization by mr_mischief
in thread Non-deterministic behaviour with simple array initialization by thkarcher

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