On 24 December 2012 15:57, Greg Smith <g...@2ndquadrant.com> wrote: > 2012-12-24 06:08:46 EST [26015]: WARNING: refcount of base/16384/49169 is > 1073741824 should be 0, globally: 0 > > That is pgbench_accounts_pkey. 1073741824 = > 0100 0000 0000 0000 0000 0000 0000 0000 = 2^30 > > Pretty odd value to find in a PrivateRefCount. What makes me nervous about > all of the PrivateRefCount coding is how it switches between references like > PrivateRefCount[(bufnum) - 1] and PrivateRefCount[b]. Might this be an off > by one error in one of those, where the wrong form was used?
PrivateRefCount is also one of the only large chunks of memory in a running server where single bit errors aren't tolerated. In shared buffers, most SLRUs or various other places, single bit errors would often go unnoticed. I wonder if you're having a hardware problem?, If not, it might be worth looking to see if that block is the root, maybe there's a problem in fastroot code, or something that only kicks in with larger indexes. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, 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
