On 3/17/25 12:36, Tomas Vondra wrote:
> ...
>
> I'm still fiddling with the script, trying to increase the probability
> of the (apparent) race condition. On one machine (old Xeon) I can hit it
> very easily/reliably, while on a different machine (new Ryzen) it's very
> rare. I don't know if that's due to difference in speed of the CPU, or
> fewer cores, ... I guess it changes the timing just enough.
>
> I've also tried running the stress test on PG17, and I'm yet to see a
> single failure there. Not even on the xeon machine, that hits it
> reliably on 18. So this seems to be a PG18-only issue.
>
And of course, the moment I sent this, I got a failure on 17 too. But
it's seems much harder to hit (compared to 18).
regards
--
Tomas Vondra
