Cuda-gdb meet error of "Failed to suspend device for CUDA device 1"?

Error: Failed to suspend device for CUDA device 1, error=CUDBG_ERROR_UNINITIALIZED(0x5).

I use cuda-gdb to run a program and get this error. However, if I directly run the program without cuda-gdb, it works fine.
I googled but couldn’t find any related info. Can anyone tell me when can this kind of error happen?

Can you provide some additional info to help us determine the probable cause?
• Is the a CUDA Toolkit sample or can you provide some simple code to reproduce it?
• Which GPUs are you using?
• What driver are you using?
• What version of cuda-gdb are you using?