Michael Paquier wrote: > On Fri, Oct 6, 2017 at 10:18 PM, Alvaro Herrera <alvhe...@alvh.no-ip.org> > wrote: > > Wood, Dan wrote: > >> Yes, I’ve been testing 9.6. I’ll try Alvaro’s patch today. > >> > >> I would prefer to focus on either latest 9X or 11dev. > > > > I tested my patch on 9.4 and 9.5 today and it seems to close the problem > > (with the patch, I waited 10x as many iterations as it took for the > > problem to occur ~10 times without the patch), but I can reproduce a > > problem in 9.6 with my patch installed. There must be something new in > > 9.6 that is causing the problem to reappear. > > The freeze visibility map has been introduced in 9.6... There could be > interactions on this side.
Ah, thanks for the tip. I hope the authors of that can do the gruntwork of researching this problem there, then. I'll go commit what I have now. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers