If dsproxy is crashing or segfaulting, you may need to generate a core dump that can be debugged by support
Unlimit max core size: ulimit -c unlimited
At crash the coredump will be generated in the same directory you ran the command. The file usually looks like: core.5642
In the dsgui go to Global Parameters | Running Parameters | Debug Options and make sure “Enable afr debug” is checked. “afr size” is the number of MB of memory that should be stored for each running thread.