K6 MMX segfault
With some deinterlace filters (e. g. "blend", I think), vlc exits due to an "Illegal instruction".
Cause: in modules/video_filter/deinterlace.c, line 225, you check for "CPU_CAPABILITY_MMX". The AMD K6 processor has MMX capability, but does not support the "pavgb" instruction.
My fix for the K6:
Check for CPU_CAPABILITY_3DNOW and replace pavgb in line 949 by "pavgusb" (and "emms" in line 1004 by "femms"?).