Re: lock on object is already held

Daniel Wood <dwood(at)salesforce(dot)com> writes:
> Sorry but I don't know how to respond to an old thread I found on
> postgresql.org:
> http://www.postgresql.org/message-id/20766.1357318482@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.

So let's see the reproducer?

regards, tom lane