nebula-graphd crashed. SIGSEGV / SEGV_MAPERR

[lrtz-v]

• OS: Centos7 4.14.0_1-0-0-48 x86_64 GNU/Linux
• Compiler: g++ --version or clang++ --version
• CPU: lscpu
• Nebula version: 3.1.0

How To Reproduce(required)

Well, i have not idea about how to reproduce, just put it there, and the nebula-graphd server crashed twice.
I got two pretty big coredump files about 40GB, and two dmp files.

Additional context

Here is gdb debug info:

And, Here is minidump-stackwalk debug info:

It's a standalone server for test usage, the config is almost default, I just changed the ip and port.

[lrtz-v]

It crashed because my colleague tried to get all the vertices in one command.