I have not been able to reproduce these problems here using your ptos on a similar machine (X86_64/4GBytes) using hugin 2011.04.
However, the latest error message makes me think about bad memory in your machine.
If you redo this stitch, do you get the same error every time?
Did you experience other crashes with memory intensive applications?
Can you install memtest86+ and give it a spin?
I have not been able to reproduce these problems here using your ptos on a similar machine (X86_64/4GBytes) using hugin 2011.04.
However, the latest error message makes me think about bad memory in your machine.
If you redo this stitch, do you get the same error every time?
Did you experience other crashes with memory intensive applications?
Can you install memtest86+ and give it a spin?
Regards
Stefan Peter