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AR# 23347

8.1i Virtex-4 PAR - "Phase 7.8 failure: FATAL ERROR DURING FAST FEEDBACK FITTING"

Description

My design fails in Phase 7.8 of PAR with the following error: 

 

"FATAL_ERROR:Place:PlXil_Uapflow1.c:1790:1.74.8.2 - FATAL ERROR DURING FAST FEEDBACK FITTING."  

 

This is a software bug with no work-around. 

 

Why is this occurring?

Solution

This problem has been fixed in the latest 8.1i Service Pack available at: 

http://www.xilinx.com/support/download/index.htm
 

The first service pack containing the fix is 8.1i Service Pack 3.

AR# 23347
Date Created 09/04/2007
Last Updated 05/20/2014
Status Archive
Type General Article