My Virtex-4 design hangs at the end of MAP when running with Timing Driven packing, and crashes without. Is this a known problem?
Timing Driven Mapping behavior:
Phase 18.34 (Checksum:aba94ee) REAL time: 57 mins 4 secs
REAL time consumed by placer: 57 mins 50 secs
CPU time consumed by placer: 44 mins 49 secs
Inspecting route info ...
Route info done.
Non-Timing Driven Mapping Behavior
Running related packing...
Writing design file "test_ntd_j39.ncd"...
There is a known problem with Virtex-4 designs with a particular DCM configuration where MAP crashes or hangs while running DRC at the end of MAP. To confirm that DRC is causing the crash, try rerunning MAP with the following environment variable set:
Linux and Solaris
setenv XIL_MAP_NODRC 1
This problem will be fixed in ISE version 10.1. Meanwhile a patch is available for 9.2i that disables only the failing check. Please open a WebCase and refer to this Answer Record by number.