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From: Andres Freund <[email protected]>
To: Tom Lane <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: Niyas Sait <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: Julien Rouhaud <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: [PATCH] Add native windows on arm64 support
Date: Mon, 29 Aug 2022 17:33:56 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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Hi,

On 2022-08-29 19:58:31 -0400, Tom Lane wrote:
> Michael Paquier <[email protected]> writes:
> > This is amazing.  The issue has showed up a second time in a row in
> > bowerbird, as of:
> > https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=bowerbird&dt=2022-08-29%2013%3A30%3A32
> 
> That is fascinating.

> > I don't know what to think about ASLR that manipulates the comment in
> > this XML object under VS 2017 (perhaps a compiler issue?), but it
> > should be possible to go back to green simply by removing "<!--c1-->"
> > from the input string.  Creating an extra output pattern here would be
> > very costly, as xml_2.out and xml.out have outputs for --with-libxml.
> 
> > Would people object if I do that for now?
> 
> Let's let it go for a few more runs.  I want to know whether it
> reproduces 100% or only sometimes.

The weirdest part is that it only happens as part of the the pg_upgrade test.

I just tested it in my test windows vm (win 10, vs 2019), with a build of
libxml I had around (2.9.7), and the regression tests passed both "normally"
and within pg_upgrade.

Greetings,

Andres Freund

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