Re: Deadlock condition in current sources

Vadim Mikheev <vmikheev@sectorbase.com>

From: "Mikheev, Vadim" <vmikheev@SECTORBASE.COM>
To: "'Tom Lane'" <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@postgresql.org
Date: 2001-12-18T19:11:55Z
Lists: pgsql-hackers
> > Checkpoint' undo is not used currently so just comment out 
> > GetUndoRecPtr call in CreateCheckPoint - we'll find solution later.
> 
> I thought about that, but figured you'd object ;-)
> 
> One possibility is to do something you had recommended awhile back for
> other reasons: add a spinlock to each PROC structure and use the
> spinlock, rather than SInvalLock, to protect setting and reading of
> xmin, logRec, and related fields.  I haven't finished working out all
> the details, though, and this seems like a rather large change to make
> at this late stage of beta.  Comments?

Sure - *comment* out GetUndoRecPtr -:)

Vadim