Re: Instability of phycodorus in pg_upgrade tests with JIT

[Alexander Lakhin]

Hello Tom and Michael,

16.10.2025 02:39, Tom Lane wrote:

Michael Paquier<mich...@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-b4tmysbfu4wmeixki9...@mail.gmail.com

Best regards,
Alexander