From: Tom Lane <tgl@sss.pgh.pa.us>
To: Alexander Korotkov <aekorotkov@gmail.com>
cc: Thomas Munro <thomas.munro@gmail.com>,
        Heikki Linnakangas <hlinnaka@iki.fi>,
        Alexander Korotkov <akorotkov@postgresql.org>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: Detecting pointer misalignment (was Re: pgsql: Implementation of
 subscripting for jsonb)
In-reply-to: <1611008.1613170500@sss.pgh.pa.us>
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Comments: In-reply-to Tom Lane <tgl@sss.pgh.pa.us>
	message dated "Fri, 12 Feb 2021 17:55:00 -0500"
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Date: Sat, 13 Feb 2021 17:59:09 -0500
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I wrote:
> Alexander Korotkov <aekorotkov@gmail.com> writes:
>> On Fri, Feb 12, 2021 at 8:19 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> Once this does settle, should we consider back-patching so that it's
>>> possible to run alignment checks in the back branches too?

>> +1

> Let's make sure we have a clean set of builds and then do that.

The buildfarm seems to be happy --- the active members that haven't
reported in should be unaffected by this patch, either because their
compiler versions are too old or because they're not x86 architecture.
So I went ahead and back-patched, and have adjusted longfin to apply
the -fsanitize switch in all branches.

(I've checked that 9.6 passes check-world this way, but not the
intermediate branches, so it's possible something will fail...)

			regards, tom lane