I am reminded of about 1992, when the 486 Intel microprocessor was discovered to have a rather serious flaw in its arithmetic unit, with potential errors in the 4th and even the 3rd digit.  Intel ended up replacing those CPU's.  I wonder if they will do the same thing this time.

This particular article https://www.nytimes.com/1994/11/24/business/company-news-flaw-undermines-accuracy-of-pentium-chips.html

mentions the Pentium and 1994, but I believe that the 486 had a similar problem.  But I am unable to find reference to it.  

Also: https://www.cs.earlham.edu/~dusko/cs63/fdiv.html

http://www.vcfed.org/forum/archive/index.php/t-17799.html 

             Jim Bell