As far as I can tell https://github.com/nfs-ganesha/nfs-ganesha/commit/7180f8160043f6a990403df... introduced a use-of-unitialized bug. This causes the global bool Cache_FDs to read uninitialized memory. I assume the intent was to set it from config, but it seems it gets a random value, interpreted as a bool. I put a complete explanation of what I see in https://github.com/nfs-ganesha/nfs-ganesha/commit/7180f8160043f6a990403df... I found this with ubsan. I highly recommend regularly using the sanitizers with nfs-ganesha to uncover this sort of thing.