Horton

Re: kevent latch paths don't handle postmaster death well

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Heikki Linnakangas <hlinnaka@iki.fi>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2020-10-14T22:59:42Z
Lists: pgsql-hackers 
Hi,

On 2020-10-15 11:10:28 +1300, Thomas Munro wrote:
> I don't think that's a problem -- the kernel will report the event to
> each interested kqueue object.  The attached fixes the problem for me.

Will it do so even if the kqueue is created after postmaster death?

- Andres

Commits

  1. Handle EACCES errors from kevent() better.

  2. Make WL_POSTMASTER_DEATH level-triggered on kqueue builds.