Re: pgsql: Get rid of the dedicated latch for signaling the startup process

On 04/11/2020 09:44, Fujii Masao wrote:
> Get rid of the dedicated latch for signaling the startup process.
> 
> This commit gets rid of the dedicated latch for signaling the startup
> process in favor of using its procLatch,  since that comports better
> with possible generic signal handlers using that latch.
> 
> Commit 1e53fe0e70 changed background processes so that they use standard
> SIGHUP handler. Like that, this commit also makes the startup process use
> standard SIGHUP handler to simplify the code.

This seems to have made buildfarm member 'elver' to segfault. I've got a 
hunch that setting recoveryWakeupLatch to NULL, when WakeupRecovery() 
doesn't check for NULL, is not OK. It's surprising that we're only 
seeing this on 'elver', though.

- Heikki