On Fri, Sep 22, 2017 at 3:39 PM, Jeff Janes <jeff.janes@gmail.com> wrote: > It turns out it is not new in pg10. I spotted in the log file only by > accident while looking for something else. Now that I am looking for it, I > do see it in 9.6 as well.
So I guess the next question is whether it also shows up if you initdb with 9.4.latest and then run the same test.
git bisect shows that it shows up in 9.5, at this commit:
The patches which enable the crashes and the rapid consumption of xid and multixact both need a little adjustment from the 10rc1 versions, so I'm attaching a combined patch that applies to bd7c348d83.
Not really sure what the next step is here. I could promote the ereport(LOG...) to a PANIC to get a core dump, but I don't think that would help because presumably the problem occurred early, when the truncation was done, not when it was detected.
