Re: Segmentation fault with PG-12

Andreas Joseph Krogh <andreas@visena.com> writes:
> Will running a debug-enabled build slow things noticably down?

gcc promises that the generated code is the same with or without debug.
I think clang does too.  With other compilers you may pay some penalty.

> Is there a way
> to make it dump a stack-trace (or back-trace in C-land?) on sig11?

You should be able to get a core file from which you can extract a
stack trace (and other info) after the fact.

https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend

            regards, tom lane