I’m currently writing a test that uses a RPC framework based on RDMA, the github repository is here:https://github.com/erpc-io/eRPC.git
And something strange occurred, segmentation fault happened when the function access a inner data structure of this framework.
I used GDB to see the trace, and it turned out that a size() function that access a size_t type variable free_index_, and that’s where the segfault happened.
I think the implement of my test doesn’t matter a lot in this question, I just wonder why a size_t can cause segfault.
Here’s the source code in this RPC framework(called eRPC), the free_index_ variable declaration is in the class FixedVector: