Re: pgsql: ltree: Zero padding bytes when allocating memory for externally

On 2016-03-10 10:57:59 -0500, Tom Lane wrote:
> I wrote:
> > Andres Freund <andres(at)anarazel(dot)de> writes:
> >> This is marked as the originating commit for a failure on dromedary:
> >> http://pgbuildfarm.org/cgi-bin/show_log.pl?nm=dromedary&dt=2016-03-08%2023%3A27%3A02
> >> the origin of the failure is:
> >> FATAL: no PostgreSQL user name specified in startup packet
> >> while in the 'comments' tests, which looks fairly independent of this commit.
>
> >> Tom, did you happen to change config on that machine or anything?
>
> > No, haven't touched it in awhile. Looks like just a glitch maybe?
>
> I had a vague feeling that this looked familiar, and it occurred to me
> to scan the buildfarm database for occurrences of that error message.
> Quite a few hours later, I have these results:

Heh, I tried the same, but limited my search too much timewise; to limit
the cost of the query...

> sysname | snapshot | count
> -----------+---------------------+-------
> okapi | 2012-05-10 06:15:02 | 138
> okapi | 2012-05-20 00:15:02 | 174
> dromedary | 2014-03-28 00:13:52 | 4
> dromedary | 2014-05-07 06:23:09 | 2
> dromedary | 2016-03-08 23:27:02 | 2
>
> So yeah, we've seen it before, but it sure looks like a system-specific
> glitch. dromedary is a pretty old machine (2006 Mac mini), so I would not
> be surprised if it dropped a bit now and then.

dromedary's indeed look rare enough. But okapi had a lot of those. But
I'm also not going to care about failures from 2012...

Thanks for checking!

Andres