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