From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgbf@twiska.com, Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: masao.fujii@oss.nttdata.com
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: min_safe_lsn column in pg_replication_slots view
Date: Wed, 8 Jul 2020 20:53:32 -0400
Message-ID: <20200709005332.GA1986@alvherre.pgsql> (raw)
In-Reply-To: <1772079.1594254949@sss.pgh.pa.us>
On 2020-Jul-08, Tom Lane wrote:
> Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> > Ouch. So 12 builds with -O0 but 13 does not?
>
> Unless Tom's changed the animal's config since that thread, yes.
I verified the configs in branches 12 and 13 in one of the failing
animals, and yes that's still the case.
> > Did we do something to
> > sequence.c to work around this problem? I cannot find anything.
>
> We did not. If it's a compiler bug, and one as phase-of-the-moon-
> dependent as this seems to be, I'd have zero confidence that any
> specific source code change would fix it (barring someone confidently
> explaining exactly what the compiler bug is, anyway). The best we
> can do for now is hope that backing off the -O level avoids the bug.
An easy workaround might be to add -O0 for that platform in that
directory's Makefile.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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To: pgsql-hackers@postgresql.org
Cc: alvherre@2ndquadrant.com, tgl@sss.pgh.pa.us, horikyota.ntt@gmail.com, masao.fujii@oss.nttdata.com, pgsql-hackers@lists.postgresql.org
Subject: Re: min_safe_lsn column in pg_replication_slots view
In-Reply-To: <20200709005332.GA1986@alvherre.pgsql>
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