Feedback-ID: i0fe9450f:Fastmail
Date: Mon, 29 Aug 2022 10:12:20 +0900
From: Michael Paquier <michael@paquier.xyz>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andres Freund <andres@anarazel.de>, Niyas Sait <niyas.sait@linaro.org>,
	Thomas Munro <thomas.munro@gmail.com>,
	Julien Rouhaud <rjuju123@gmail.com>,
	PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: [PATCH] Add native windows on arm64 support
Message-ID: <YwwSdACDiHqtPkMA@paquier.xyz>
References: <Ynm5g2152/yKc/0o@paquier.xyz>
 <20220826012907.gjw3jdqdgsts5y65@awork3.anarazel.de>
 <YwgrZcEUh6pgLg+u@paquier.xyz>
 <20220826032943.nwoepbegzwntbmks@awork3.anarazel.de>
 <YwmCj/VGXjCeNcrh@paquier.xyz>
 <20220827192757.akupv6cydlgksd2y@awork3.anarazel.de>
 <YwsX3Jf89ucT/VFC@paquier.xyz>
 <2655387.1661695793@sss.pgh.pa.us>
 <20220828154154.4vk6lymdbvx7hnhc@awork3.anarazel.de>
 <2679975.1661701879@sss.pgh.pa.us>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
	protocol="application/pgp-signature"; boundary="P9mw/MIrIKCXkvdS"
Content-Disposition: inline
In-Reply-To: <2679975.1661701879@sss.pgh.pa.us>
Archived-At: 
 <https://www.postgresql.org/message-id/YwwSdACDiHqtPkMA%40paquier.xyz>
Precedence: bulk


--P9mw/MIrIKCXkvdS
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

On Sun, Aug 28, 2022 at 11:51:19AM -0400, Tom Lane wrote:
> I have no idea either.  I agree there *shouldn't* be any connection,
> so if ASLR is somehow triggering this then whatever is failing is
> almost certainly buggy on its own terms.  But there's a lot of
> moving parts here (mumble libxml mumble).  I'm going to wait to see
> if it reproduces before spending much effort.

I have noticed that yesterday, but cannot think much about it.  This
basically changes the position of "<!--c1-->" for the first record,
leaving the second one untouched:
<!--c1--><?pi arg?><![CDATA[&ent1]]>
<?pi arg?><![CDATA[&ent1]]><!--c1-->

I am not used to xmltable(), but I wonder if there is something in one
of these support functions in xml.c that gets influenced by the
randomization.  That sounds a bit hairy as make check passed in
bowerbird, and I have noticed at least two other Windows hosts running
TAP that passed.  Or that's just something with libxml itself.
--
Michael

--P9mw/MIrIKCXkvdS
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=oRRF
-----END PGP SIGNATURE-----

--P9mw/MIrIKCXkvdS--