Re: lockup in parallel hash join on dikkop (freebsd 14.0-current)

From: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>
To: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: lockup in parallel hash join on dikkop (freebsd 14.0-current)
Date: 2023-02-07 00:06:35
Message-ID: efc7fac7-ae3a-ab02-11cb-993dd52b1842@enterprisedb.com
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On 2/7/23 00:48, Thomas Munro wrote:
> On Tue, Feb 7, 2023 at 12:46 PM Tomas Vondra
> <tomas(dot)vondra(at)enterprisedb(dot)com> wrote:
>> No, I left the workload as it was for the first lockup, so `make check`
>> runs everything as is up until the "join" test suite.
>
> Wait, shouldn't that be join_hash?

No, because join_hash does not exist on 11 (it was added in 12). Also,
it actually locked up like this - that's the lockup I reported on 28/1.

regards

--
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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