Re: Can can I make an injection point wait occur no more than once? - Mailing list pgsql-hackers

From Noah Misch
Subject Re: Can can I make an injection point wait occur no more than once?
Date
Msg-id 20250708015344.06.nmisch@google.com
Whole thread Raw
In response to Re: Can can I make an injection point wait occur no more than once?  (Peter Geoghegan <pg@bowt.ie>)
List pgsql-hackers
On Mon, Jul 07, 2025 at 09:40:20PM -0400, Peter Geoghegan wrote:
> I'm finding that the FreeBSD Meson CI target consistently fails with
> this setup, though. And with just about any variant I can think of;
> seems to fail quite reliably. The initial SELECT backwards scan
> statement will complete without ever waiting (though only on CI).
> 
> Do you know what that might be? It would be a lot easier if there was
> at least a way to debug this locally.

FreeBSD's scheduler is different enough to exercise quite-different relative
timings of process wake-up.  I got a lot of FreeBSD failures when my tests had
underspecified the order of events.

If it continues to be a problem, consider sharing the patch that's behaving
this way for you.



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