| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: lockup in parallel hash join on dikkop (freebsd 14.0-current) |
| Date: | 2023-01-28 03:42:47 |
| Message-ID: | 20230128034247.fqaxx3npu6ceads4@awork3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2023-01-27 22:23:58 +1300, Thomas Munro wrote:
> After 1000 make check loops, and 1000 make -C src/test/modules/test_shm_mq
> check loops, on the same FBSD 13.1 machine as elver which has failed
> like this once before, I haven't been able to reproduce this on
> REL_12_STABLE.
Did you use the same compiler / compilation flags as when elver hit it?
Clearly Tomas' case was with at least some optimizations enabled.
Except that you're saying that you hit this on elver (amd64), I think it'd be
interesting that we see the failure on an arm host, which has a less strict
memory order model than x86.
IIUC elver previously hit this on 12?
Greetings,
Andres Freund
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