Description of Problem: Choosing a jpeg format output in xsane menu causes an immediate program termination with a "Floating point exception". How Reproducible: Absolute reliability. :-)
Sigh! Yesterday it was bombing out always and today I cannot reproduce that anymore; neither with a debugging version nor with original executables. But the difference is that today I have recompiled sane-backends due to a bug #56540.
The 0.81 changelog mentions floating point exceptions. I wonder if that fixes it.
Is it previews that this happens with?
Both! That means that if jpeg format was chosen then attempts to get anything out of a scanner caused an immediate floating point exception and exit from xsane. But by the time I atttempted to debug that it mysteriously vanished. On the top of that I do not an access to that scanner anymore as it went to its real owner.
I'm going to mark this as closed, since I can't reproduce it here and both xsane and sane have had floating point problems fixed recently.