How to reproduce:
- cuda-gdbserver :2345 some_cuda_app
- cuda-gdb
- target remote localhost:2345
Then the remote connection will be closed, and the gdbserver will print some error as follows:
Process csr_bfs created; pid = 114385
Listening on port 2345
Remote debugging from host 127.0.0.1
cuda-gdb/7.12/gdb/gdbserver/regcache.c:264: A problem internal to GDBserver has been detected.
Unknown register ymm0h requested
Spec:
OS: Ubuntu 16.04 / Ubuntu 18.04
CUDA toolkits: 9.2
CPU: Intel® Xeon® Gold 6140 CPU / Silver 4108
GPU: Titan V / V100 PCIE 16G
We have several machines with the above specs will face such error.
But, another machine whose specs is:
OS: Ubuntu 16.04
CUDA toolkits: 9.2
CPU: Intel I7 6800k
GPU: 1080ti
will be fine.
So, is this error related to Xeon® Scalable Processors family or volta-based GPU architecture?
Thanks for any comments!