This is not the default but if you add the TTF directory to the directories in XftConfig file that xftcache starts to segfault every time and if one is using anti-aliasing the desktop never comes on after login.
Please attach the problem config file
What font files are in the TTF directory?
Also, what version of the following (and please upgrade to the latest if you haven't already) freetype XFree86
I only have the fonts that came with the rpm in the TTF directory. The same problem with 4.2.0-6.32 AND 4.2.0-6.41 Freetype version is 2.0.6-3. I have another directory that comes from ttfonts rpm BUT also contains the Microsoft's version of tt fonts. This is also listed in XftConfig. This happens with both the standard config file that is in the rpm except TTF directory added or a slightly modified config file that I have. In both cases just commenting the TTF directory line allows xftcache to work.
The problem is resolved in XFree86-4.2.0-6.47 and freetype-2.0.9-1. Closing....