... using the Vesperix suggested configure string on ATLAS 3.10...
ERROR 621 DURING CACHESIZE SEARCH!!.
You seem to have CSS turned off.
Please don't fill out this field.
R. Clint Whaley
You'll need to tell me what the flags you used are, and the error file does *not* show the error you quote above, but is rather dying during the initial muladd detection, which makes me wonder if you have applied the patch:
Finally, it looks like you are using hardfp, which makes me wonder if you have done as suggested:
Let me know,