(My report got eaten by bugzilla. I'll try attaching files instead.) Got an X crash. Managed to reproduce it on VT2 with VT1 on scroll-lock to prevent rebooting. Used ulimit -c unlimited to get a core. Used ftp to analyse it. I've mailed XFree86 already.
Created attachment 400 [details] XF86_S3 -xf86config /tmp/XF86Config.test
Created attachment 401 [details] echo where | gdb XF86_S3 core
Incidentally, this is on a 486 that's it's happening. I guess that's probably relevant since the crash is from a SIGILL. Is the XF86_S3 binary built i386?
I've investigated this a bit further. The XF86_S3 that's actually _installed_ works fine with the XF86Config.test from the installer, but the one on the CD that I burnt doesn't. I think it must just be a bad CD (the XF86_S3 grabbed from the CD is different than the one in the iso image). Sorry for the bogus report.