Re: Double invocation of InitPostmasterChild in bgworker with -DEXEC_BACKEND

On Tue, Aug 2, 2016 at 6:40 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> 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 ...

That would get my vote.

--
Robert Haas
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