Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> writes:
> I discovered that if you build with -DEXEC_BACKEND on a Unix system
> and then try to start a background worker, it dies in
> InitializeLatchSupport:
> TRAP: FailedAssertion("!(selfpipe_readfd == -1)", File: "latch.c", Line: 161)
> That's because InitPostmasterChild is called twice. I can
> successfully use regular parallel query workers and bgworkers created
> by extensions if I apply the attached patch.
Confirmed, fix pushed. I wonder if we should have a buildfarm member
running the Unix EXEC_BACKEND code ...
regards, tom lane