On Sep 14, 2012, at 12:17 PM, Simon Riggs <si...@2ndquadrant.com> wrote:
> The bug itself is not major, but the extent and user impact is serious.

I don't think I understand how you're using the word major there.  I seem to 
recall some previous disputation between you and I about the use of that term, 
so maybe it would be good to get that cleared up.  To me major and serious mean 
about the same thing, so it can't for me be one but not the other.

Definitions aside, I think it's a pretty scary issue. It basically means that 
if you have a recovery (crash or archive) during which you read a buffer into 
memory, the buffer won't be checkpointed.  So if, before the buffer is next 
evicted, you have a crash, and if at least one checkpoint has intervened 
between the most recent WAL-logged operation on the buffer and the crash, 
you're hosed.  That's not a terribly unlikely scenario.

While I can't claim to understand exactly what our standards for forcing an 
immediate minor release are, I think this is pretty darn bad. I certainly don't 
want my customers running with this for a minute longer than necessary, and I 
feel really bad for letting it get into a release, let alone go undetected for 
this long. :-(

...Robert

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