Horton

Re: Instability of phycodorus in pg_upgrade tests with JIT

Alexander Lakhin <exclusion@gmail.com>

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From: Alexander Lakhin <exclusion@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>, Michael Paquier <michael@paquier.xyz>
Cc: Postgres hackers <pgsql-hackers@lists.postgresql.org>, Andres Freund <andres@anarazel.de>
Date: 2025-10-16T19:00:00Z
Lists: pgsql-hackers 
Hello Tom and Michael,

16.10.2025 02:39, Tom Lane wrote:
> Michael Paquier<michael@paquier.xyz> writes:
>> I have spotted a couple of buildfarm failures for buildfarm member
>> phycodorus on REL_14_STABLE and REL_13_STABLE:
>> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=phycodurus&dt=2025-10-15%2009%3A12%3A36
> phycodorus seems to be running a remarkably ancient LLVM version.
> I wonder if we should just write these off as "probably an LLVM bug".

I collected all of such failures here:
https://wiki.postgresql.org/wiki/Known_Buildfarm_Test_Failures#check-pg_upgrade_fails_on_LLVM-enabled_animals_due_to_double_free_or_corruption

Masao-san was going to dig into that:
https://www.postgresql.org/message-id/CAHGQGwFcjccSYX+Ap8meEbCccUei-B4tmYsBFu4wMEixKi90fQ@mail.gmail.com

Best regards,
Alexander