I’d like to report an issue about JetPack-4.4 DP here. A more detailed description could be found on GitHub: TensorRT 7 segmentation fault when deserializing "PriorBox" plugin · Issue #562 · NVIDIA/TensorRT · GitHub
Basically, I was able to use “trtexec” to build the TensorRT engine from the Caffe SSD_300x300 model and run inferencing with it. However, “trtexec” would seg-fault when deserializing the engine file. More specifically, the seg-fault happened during deserialization of the “PriorBox” plugin.
The above worked in TensorRT 6 (JetPack-4.3) previously. So it does seem a bug introduced in current TensorRT 7.1.0 DP.
Our company does use this feature in the products. We hope this issue would be fixed in the GA release.