这个是怎么回事？是软件问题吗？

Alvin

用的是quartus 5.1 ，全编译的时候总是随机冒出不同的错误。下面是其中的两个，是******的不好吗？
该打的补丁应该都已经打了啊

*** Fatal error: Module: quartus_fit.exe Exception: Access Violation
Stack Trace:
021f4ea2: TDB_EDGE_GROUP::reset_slack() + 0x25 (TSM_TDB)
02647920: TAN_UTILITY::compute_slack_for_tdc() + 0x30 (TSM_TAN)
0dfebf0d: vpr_qi_main() + 0x1b91d (FITTER_VPR20KMAIN)
a00c8000:0cb5674a: FITAPI_FITCC_TDC_UTILITY::perform_long_path_timing_analysis() + 0x0 (fitter_FITAPI)
f18b5608:
End-trace

Internal Error: Sub-system: DYGR, File: dygr_route_timing_info_body.cpp, Line: 1035
this->get_die_info()->get_body()->is_router_id( node_id )
Quartus II Version 5.1 Build 216 03/06/2006 SJ Full Version
Service Pack Installed:  2.01