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strange locking question

AlleTSep 14 2011 — edited Sep 16 2011
oracle database 10.2.0.4 RAC on RHEL 5

I have a session which waits on TX row lock contention for hours but there are no other sessions blocking.

If I look at V$LOCK the column BLOCK is 0 for that session.

But why the session is stuck on that wait event?

If I query look at the session in OEM I find that the blocking session has the same SID/SERIAL NUMBER as the session I am tuning, so it seems the session is blocking itself.

Anyone can explain such a behavior???

Regards
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Locked on Oct 14 2011
Added on Sep 14 2011
#general-database-discussions
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