It looks like the crash is due to a poppler function prototype confusion. Is this gcc 4.7.1 related? Anybody familiar with the poppler-tqt call involved? Moreover -- how to fix it?
There were some recent nominal poppler related patches for tdegraphics, but they are not causing problems here.
Despite not yet having 4.7.1, I hope to run full build sets the next few days with all of the Slackware releases I am supporting. If there are no tdegraphics failures then I'll have to wait until 4.7.1 is available before trying to share meaningful results. I have to wait for 4.7.1 anyway before I can confirm no kate/kwrite issues here.
Darrell