[scribus] What is Signal 6?

[John Jason Jordan]

Scribus 1.3.5 RC3 on Ubuntu Jaunty x86_64.

I am getting "Scribus crashed due to signal 6."

I have a long document of 98 MB that I need to make some modifications
to. It is kind of painful to work in this document because Scribus is
so slow with it. The document is composed of student exercises, each of
which varies from one or two pages to eight pages. So I created new
documents for each of the six exercises that I need to modify, setting
each up with the same document setup as the original (margins, grid,
etc.). Then I opened the original document and navigated to each
exercise, copying the text frames for each exercise into the new
document for that exercise. As soon as each new document had the frames
and text that I needed to modify I saved the new document and closed
it. My plan is to do the modifications in the new small documents, then
copy and paste the text back into the frames in the original document.

I can open the original document fine. But all six of the new documents
crash Scribus with signal 6 when I try to open them. 

I can delete the new documents and try again, but it would be pointless
to create another six documents that crash Scribus when I try to open
them. If I knew what Signal 6 means it might help. 

The largest of the six new documents is only 115K, so I could easily
create a bug report and upload one or all.