"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
> (gdb) p BufferDescriptors[781]
> $1 = {tag = {rnode = {spcNode = 1663, dbNode = 16385, relNode = 2666}, blockNum = 1}, flags = 70, usage_count = 5, refcount = 4294967294,
> wait_backend_pid = 748, buf_hdr_lock = 0 '\0', buf_id = 781, freeNext = -2, io_in_progress_lock = 1615, content_lock = 1616}
Whoa. refcount -2?
Well, now we have an idea what to look for anyway ... and the relNode
says this is pg_constraint_contypid_index. Again. There's got to be
some broken code affecting that index in particular ...
regards, tom lane