Re: BUG #19551: TRAP: failed Assert("max_pinned_buffers > 0")

Hi,

On Sat, 11 Jul 2026 at 15:08, PG Bug reporting form
<noreply(at)postgresql(dot)org> wrote:
>
> The following bug has been logged on the website:
>
> Bug reference: 19551
> Logged by: Roman Zharkov
> Email address: r(dot)zharkov(at)postgrespro(dot)ru
> PostgreSQL version: 17.10
> Operating system: WSL2 on Windows 11
> Description:
>
> Hello,
> This error occurred when attempting run the temp.sql regression test from
> the master branch on the REL_17_STABLE (#bab0a2db).
> It seems, REL_16_STABLE and REL_18_STABLE work fine.

Thank you for the reproducer script.

I think this is expected. If you disable asserts, you will see an
actual error message: 'ERROR: no empty local buffer available'. This
error message can be seen on both REL_16_STABLE and REL_18_STABLE too.

--
Regards,
Nazir Bilal Yavuz
Microsoft