Hi,
On 2022-08-29 19:58:31 -0400, Tom Lane wrote:
> Michael Paquier <michael@paquier.xyz> 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
