I have had xfs running happily for some time using a bunch of TrueType fonts in /usr/share/fonts/default/TrueType, including the webfonts package. After upgrading to the Rawhide packages (XFree86-4.0.2-0.2, freetype-2.0.1-something) the font server dies as soon as a TrueType font is referenced (in my case when WindowMaker starts, which confused me for a while). Symptoms are that WindowMaker fails to start up properly, and after a few seconds X server dies.
Oh, it appears to work OK under earlier kernels (2.4.0-prerelease is OK) but not 2.4.0-final or -ac patches. Really annoyingly it works fine on my AMD K6-III at home with almost exactly the same setup (maybe different fonts?) but fails here on my PII. So I'm guessing there's some issue with MMX or SSE instructions?
*** This bug has been marked as a duplicate of 22538 ***