Excerpts from Heikki Linnakangas's message of jue jun 09 04:56:41 -0400 2011:
> Fortunately the fix is very simple, we just need to set the page_dirty
> flag whenever we modify an slru page. But clearly this slru stuff needs
> more testing. It's pretty hard to write good repeatable test cases for
> these things, though.
Maybe reduce the number of SLRU buffers used?
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Álvaro Herrera <alvherre@commandprompt.com>
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