Sorry but I don't know how to respond to an old thread I found on postgresql.org: http://www.postgresql.org/message-id/20766.1357318...@sss.pgh.pa.us
I presume this is still an open issue. While working on a new feature I wrote a stress test for it. After fixing my bugs, I couldn't get rid of: ERROR: lock RowExclusiveLock on object 16384/16393/0 is already held In addition, with asserts enabled in lock.c I would see Asserts in UnGrantLock, LockRelease, LockReleaseAll, etc. In one run everything hung waiting on SQL locks. The asserts or hang occurs within seconds of running the stress test. Before I get into the details I want to see if this is something already being worked on. I can repro it easily in vanilla 9.3.
