Re: post-bootstrap init : permission denied pg_description

=?iso-8859-1?Q?Fran=E7ois?= SIMON <francois(dot)simon(at)free(dot)fr> writes:
> So the problem seems to come from xlc, and only at initdb step.
> I can see that initdb runs a backend postgres in single user mode.
> And this is this backend, when compiled with xlc, that shows :
> FATAL: permission denied for table pg_description

Yeah. This seems like it must be an xlc code-generation bug.
It's got nothing to do with filesystem permissions: you're failing
an ACL check at the logical "table" level, which you should not
be because single-user mode implies superuser permissions.

We do have one buildfarm member building with 64-bit xlc on
AIX 7.1:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=hornet&dt=2024-09-11%2003%3A51%3A02

I see that that uses a bunch of odd CFLAGS, but they look like they
are mostly to suppress compiler warnings. Another important bit of
the recipe for AIX is -D_LARGE_FILES=1, but I'm not sure that that
would have any impact during initdb (since we're not dealing with
any large files at that point).

You could perhaps try different -O optimization levels. Also
make sure your xlc is up-to-date.

regards, tom lane