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AR# 21038

7.1i Virtex-4 MAP - "FATAL_ERROR:Pack:pksvrcomporacle.c:138:1.4 - Unexpected INDETERMINATE result."


Urgency: Hot 


General Description: A case has been seen where an invalid design triggered the following Fatal Error rather than a more useful User Error. 


"Running directed packing... 

FATAL_ERROR:Pack:pksvrcomporacle.c:138:1.4 - Unexpected INDETERMINATE result.  

Process will terminate. To resolve this error, please consult the Answers 

Database and other online resources at http://support.xilinx.com. If you need 

further assistance, please open a WebCase by clicking on the "WebCase" link 

at http://support.xilinx.com"

Investigation of this case found that an OBUFT had been optimized to GND due to constants on both the input and enable pins. The resulting GND was driving a BIPAD which is invalid. The error was not handled appropriately and the result was this Fatal Error.


This issue is being investigated for a fix that would result in an informative User Error being printed instead of the Fatal Error. Meanwhile, if this Fatal Error is encountered, the connectivity of the I/O logic should be investigated. Look for BIPADs with constants driving the output side.

AR# 21038
Date Created 09/04/2007
Last Updated 05/19/2014
Status Archive
Type General Article