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RE: Beta 6 Regression results on Redat 7.0. - Mailing list pgsql-hackers

From Mikheev, Vadim
Subject RE: Beta 6 Regression results on Redat 7.0.
Date
Msg-id 8F4C99C66D04D4118F580090272A7A234D333B@sectorbase1.sectorbase.com
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In response to Beta 6 Regression results on Redat 7.0.  (Lamar Owen <lamar.owen@wgcr.org>)
Responses Re: Beta 6 Regression results on Redat 7.0.  (Tom Lane <tgl@sss.pgh.pa.us>)
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> I think the problem is that BufferSync unconditionally does PinBuffer
> on each buffer, and holds the pin during intervals where it's released
> BufMgrLock, even if there's not really anything for it to do on that
> buffer.  If someone else is running FlushRelationBuffers then it's
> possible for that routine to see a nonzero pin count when it looks.
> 
> Vadim, what do you think about how to change this?  I think this is
> BufferSync's fault not FlushRelationBuffers's ...

I'm looking there right now...

Vadim

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