Re: strange parallel query behavior after OOM crashes - Mailing list pgsql-hackers

On Tue, Apr 4, 2017 at 1:52 PM, Tomas Vondra
<tomas.vondra@2ndquadrant.com> wrote:
> In any case, the comment right before BackgroundWorkerArray says this:
>
>  * These counters can of course overflow, but it's not important here
>  * since the subtraction will still give the right number.
>
> which means that this assert
>
> +       Assert(BackgroundWorkerData->parallel_register_count >=
> +               BackgroundWorkerData->parallel_terminate_count);
>
> is outright broken, just like any other attempts to rely on simple
> comparisons of these two counters, no?

Yeah, that's busted.  Good catch.

-- 
Robert Haas
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