On Sun, Feb 10, 2019 at 12:10:52PM +0530, Robert Haas wrote: > I think I see what's happening. At the moment the problem occurs, > there is no btree - there is only a singleton range. So > FreePageManagerInternal() takes the fpm->btree_depth == 0 branch and > then ends up in the section with the comment /* Not contiguous; we > need to initialize the btree. */. And that section, sadly, does not > respect the 'soft' flag, so kaboom. Something like the attached might > fix it.
I ran overnight with this patch, but all parallel processes ended up stuck in the style of bug#15585. So that's either not the root cause, or there's a 2nd issue. https://www.postgresql.org/message-id/flat/15585-324ff6a93a18da46%40postgresql.org Justin
