Verdi - Cannot load the design from...because it is locked by other process

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Verdi - Cannot load the design from…because it is locked by other process

问题描述

启动Verdi后打开其它人交付的lib,提示报错:

1>Cannot load the design from /path/to/<LIBRARY_NAME>.lib++, because it is locked by other process.
...
6>Fail to initialize library <LIBRARY_NAME>
7>Notice
		Application Version: Verdi_*
		rcFile Version: Verdi_***
		Since the application version older than the rcFile version, this might cause version incompatible problem.

问题定位

经调查,其余用户无该问题,于是重点排查该用户的环境。
使用二分法在.cshrc中,排查到了一段newgrp到wheel群组的代码,也就是无论默认群组是什么,总是最终newgrp到wheel。将该段代码注释掉,问题消失。

继续查看,发现/path/to/<LIBRARY_NAME>.lib++这个文件是另一个群组的,这个群组排在了16th以后。
一开始我判断是16群组的问题,但实际上用户能够在terminal将其拷贝到/local然后能打开,说明当前这个NFS已经不存在16群组限制的问题。因此判断是工具自身的bug或机制,它要求被访问的lib文件的群组是用户当前的primary group才被允许访问。具体机制不清楚,需由供应商提供解释。

参考资料

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