=?iso-8859-1?Q?Fran=E7ois?= SIMON <francois.simon@xxxxxxx> 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
