On Fri, Sep 07, 2012 at 01:37:57AM -0700, Daniel Farina wrote:
> On Thu, Sep 6, 2012 at 3:04 AM, Noah Misch <n...@leadboat.com> wrote:
> > On Tue, Sep 04, 2012 at 09:46:58AM -0700, Daniel Farina wrote:
> >> I might try to find the segments leading up to the overflow point and
> >> try xlogdumping them to see what we can see.
> >
> > That would be helpful to see.
> >
> > Just to grasp at yet-flimsier straws, could you post (URL preferred, else
> > private mail) the output of "objdump -dS" on your "postgres" executable?
> 
> https://dl.dropbox.com/s/444ktxbrimaguxu/txid-wrap-objdump-dS-postgres.txt.gz

Thanks.  Nothing looks amiss there.

I've attached the test harness I used to try reproducing this.  It worked
through over 500 epoch increments without a hitch; clearly, it fails to
reproduce an essential aspect of your system.  Could you attempt to modify it
in the direction of better-resembling your production workload until it
reproduces the problem?

nm

Attachment: burnxid.shar
Description: Unix shell archive

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