> It is like the problem due to the confliction of vacuum & update. The update
> is on the page that vacuum was just removed.
>
> Before we try to understand/attack the bug exactly, first I'd like to see
> the complete xlog output. Your xlog output is imcomplete -- for example, the
> first line after "b" should be "lk %u", the second line after "ti" should be
> "d %u%u". Can you check out why the output looks like that? If you want to
> examine the source code, look at heapam.c/heap_desc().
Gah, yeah it looks like a stupid copy and paste error, im attaching it
this time... hope thats ok