Assuming the inxi changelog records are correct, and that the words about where the bug showed are
right (please show the output line before the error, the errors, then the first line of output after
the errors. In other words, use the output, not words, to show the error). In this case I got just
enough to make a good guess, and according to changelog, this corner case undefined data issue was
fixed in 3.3.32.
I suggest updating or grabbing the current inxi 3.3.35 and confirming it's
fixed, which it should be.
I would also note that in my changelog, it says this was very old logic, and that this was the first
time someone had had that bit of data undefined, so this is not going to hit a lot of people.
Easiest is to just replace the current inxi file with the git master from codeberg, which you can
access via a shortcut:
wget smxi.org/inxi
at which point you'll probably find the bug was fixed already.
Or you can install the debian packports package, which is current thanks to Unit193's fine packaging
work. Or the testing package, it doesn't matter, inxi has no version number based dependencies, in
fact, it has almost no dependencies at all, and installs and runs fine on Sarge, Etch, etc, which I
test on now and then.