| From: | Byron Servies <bservies(at)pacang(dot)com> |
|---|---|
| To: | Justin Clift <justin(at)postgresql(dot)org> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "D'Arcy J(dot)M(dot) Cain" <darcy(at)druid(dot)net>, pgsql-hackers(at)postgresql(dot)org, current-users(at)netbsd(dot)org |
| Subject: | Re: PostgreSQL, NetBSD and NFS |
| Date: | 2003-02-05 17:24:09 |
| Message-ID: | 20030205172409.GD590@owl.central |
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| Lists: | pgsql-hackers |
On February 06, 2003 at 03:50, Justin Clift wrote:
> Tom Lane wrote:
> <snip>
> >Hoo boy. I was already suspecting data corruption in the index, and
> >this looks like more of the same. My thoughts are definitely straying
> >in the direction of "the NFS server is dropping bits, somehow".
> >
> >Both this and the (admittedly unproven) bt_moveright loop suggest
> >corrupted values in the cross-page links that exist at the very end of
> >each btree index page. I wonder if it is possible that, every so often,
> >you are losing just the last few bytes of an NFS transfer?
>
> Hmmm... does anyone remember the name of that NFS testing tool the
> FreeBSD guys were using? Think it came from Apple. They used it to
> find and isolate bugs in the FreeBSD code a while ago.
>
> Sounds like it might be useful here.
>
> :-)
>
fsx. See also <http://www.connectathon.org>
hth,
Byron
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