lock on object is already held

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От Daniel Wood
Тема lock on object is already held
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Msg-id CAPweHKfExEsbACRXQTBdu_4QxhHk-Cic_iwmbh5XHo_0Z=Q-1g@mail.gmail.com
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Ответы Re: lock on object is already held  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: lock on object is already held  (Tom Lane <tgl@sss.pgh.pa.us>)
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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.

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