Horton

Re: BUG #17512: Process running query fails with SIGSEV - nodeMemoize.c:349

Aleš Zelený <zeleny.ales@gmail.com>

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From: Aleš Zelený <zeleny.ales@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: David Rowley <dgrowleyml@gmail.com>, PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Date: 2022-06-07T20:26:04Z
Lists: pgsql-bugs 
Hello,

here are the installed llvm packages:

llvm-3.4.2-9.el7.x86_64
llvm5.0-libs-5.0.1-7.el7.x86_64
llvm5.0-5.0.1-7.el7.x86_64
llvm-libs-3.4.2-9.el7.x86_64
postgresql14-llvmjit-14.2-1PGDG.rhel7.x86_64

Kind regards Ales Zeleny

út 7. 6. 2022 v 21:07 odesílatel Tom Lane <tgl@sss.pgh.pa.us> napsal:

> > So far, it looks that the query I've been using to prove the SIGSEV works
> > fine when I disabled jit by setting
> > jit=off
>
> Oh!  So it's (probably) not a Memoize problem, it's an LLVM problem.
>
> > The jit package is postgresql14-llvmjit-14.2-1PGDG.rhel7.x86_64
>
> Hm.  What LLVM version have you got on that machine?  (And I wonder
> whether it's the same as what Devrim built this PGDG package against.)
>
>                         regards, tom lane
>

Commits

  1. Harden Memoization code against broken data types